* [Qemu-devel] [PULL 00/33] Misc patches for 2017-06-01
@ 2017-06-01 12:41 Paolo Bonzini
2017-06-01 12:41 ` [Qemu-devel] [PULL 01/33] mc146818rtc: update periodic timer only if it is needed Paolo Bonzini
` (34 more replies)
0 siblings, 35 replies; 44+ messages in thread
From: Paolo Bonzini @ 2017-06-01 12:41 UTC (permalink / raw)
To: qemu-devel
The following changes since commit 56821559f0ba682fe6b367815572e6f974d329ab:
Merge remote-tracking branch 'dgilbert/tags/pull-hmp-20170517' into staging (2017-05-18 13:36:15 +0100)
are available in the git repository at:
git://github.com/bonzini/qemu.git tags/for-upstream
for you to fetch changes up to 602f845bfc7579fe6b39e6b09ea90e24f5c0ef48:
kvm: don't register smram_listener when smm is off (2017-06-01 14:07:27 +0200)
----------------------------------------------------------------
* virtio-scsi use-after-free fix (Fam)
* vhost-user-scsi support (Felipe)
* SMM fixes and improvements for TCG (myself, Mihail)
* irqchip and AddressSpaceDispatch cleanups and fixes (Peter)
* Coverity fix (Stefano)
* NBD cleanups and fixes (Vladimir, Eric, myself)
* RTC accuracy improvements and code cleanups (Guangrong+Yunfang)
* socket error reporting improvement (Daniel)
* GDB XML description for SSE registers (Abdallah)
* kvmclock update fix (Denis)
* SMM memory savings (Gonglei)
* -cpu 486 fix (Paolo)
* various bugfixes (Roman, Peter, myself, Thomas)
* rtc-test improvement (Guangrong)
----------------------------------------------------------------
Abdallah Bouassida (1):
target/i386: Add GDB XML description for SSE registers
Daniel P. Berrange (1):
sockets: improve error reporting if UNIX socket path is too long
Denis Plotnikov (1):
kvmclock: update system_time_msr address forcibly
Eric Blake (1):
nbd: Fully initialize client in case of failed negotiation
Fam Zheng (1):
virtio-scsi: Unset hotplug handler when unrealize
Felipe Franciosi (2):
vhost-user-scsi: Introduce vhost-user-scsi host device
vhost-user-scsi: Introduce a vhost-user-scsi sample application
Gonglei (1):
kvm: don't register smram_listener when smm is off
Mihail Abakumov (1):
i386: fix read/write cr with icount option
Paolo Bonzini (5):
target/i386: enable A20 automatically in system management mode
target/i386: use multiple CPU AddressSpaces
linuxboot_dma: compile for i486
edu: fix memory leak on msi_broken platforms
nbd: make it thread-safe, fix qcow2 over nbd
Peter Xu (5):
kvm: irqchip: trace changes on msi add/remove
msix: trace control bit write op
kvm: irqchip: skip update msi when disabled
exec: simplify phys_page_find() params
exec: fix address_space_get_iotlb_entry page mask
Roman Pen (1):
i386/kvm: do not zero out segment flags if segment is unusable or not present
Stefano Stabellini (1):
Check the return value of fcntl in qemu_set_cloexec
Tai Yunfang (1):
mc146818rtc: precisely count the clock for periodic timer
Thomas Huth (1):
hw/core: nmi.c can be compiled as common-obj nowadays
Vladimir Sementsov-Ogievskiy (5):
nbd: strict nbd_wr_syncv
nbd: read_sync and friends: return 0 on success
nbd: add errp parameter to nbd_wr_syncv()
nbd: add errp to read_sync, write_sync and drop_sync
nbd/client.c: use errp instead of LOG
Xiao Guangrong (5):
mc146818rtc: update periodic timer only if it is needed
mc146818rtc: ensure LOST_TICK_POLICY_SLEW is only enabled on TARGET_I386
mc146818rtc: drop unnecessary '#ifdef TARGET_I386'
mc146818rtc: embrace all x86 specific code
qtest: add rtc periodic timer test
.gitignore | 1 +
Makefile | 3 +
Makefile.objs | 4 +
block/nbd-client.c | 41 +-
configure | 4 +-
contrib/libvhost-user/libvhost-user.h | 11 +-
contrib/vhost-user-scsi/Makefile.objs | 1 +
contrib/vhost-user-scsi/vhost-user-scsi.c | 886 ++++++++++++++++++++++++++++++
default-configs/pci.mak | 1 +
default-configs/s390x-softmmu.mak | 1 +
exec.c | 27 +-
gdb-xml/i386-32bit-sse.xml | 52 ++
gdb-xml/i386-32bit.xml | 14 +
gdb-xml/i386-64bit-sse.xml | 60 ++
gdb-xml/i386-64bit.xml | 14 +
hw/core/Makefile.objs | 2 +-
hw/i386/kvm/clock.c | 3 +
hw/misc/edu.c | 12 +-
hw/pci/msix.c | 11 +-
hw/pci/trace-events | 3 +
hw/scsi/Makefile.objs | 1 +
hw/scsi/vhost-scsi-common.c | 1 -
hw/scsi/vhost-user-scsi.c | 211 +++++++
hw/scsi/virtio-scsi.c | 3 +
hw/timer/mc146818rtc.c | 203 ++++---
hw/virtio/virtio-pci.c | 54 ++
hw/virtio/virtio-pci.h | 11 +
include/block/nbd.h | 8 +-
include/hw/timer/mc146818rtc.h | 19 +
include/hw/virtio/vhost-user-scsi.h | 35 ++
include/hw/virtio/virtio-scsi.h | 2 +
kvm-all.c | 8 +-
nbd/client.c | 125 ++---
nbd/common.c | 23 +-
nbd/nbd-internal.h | 40 +-
nbd/server.c | 100 ++--
pc-bios/linuxboot_dma.bin | Bin 1536 -> 1536 bytes
pc-bios/optionrom/Makefile | 1 +
qemu-nbd.c | 5 +-
target/i386/arch_memory_mapping.c | 18 +-
target/i386/cpu.c | 23 +-
target/i386/cpu.h | 20 +-
target/i386/helper.c | 96 ++--
target/i386/kvm.c | 36 +-
target/i386/machine.c | 4 -
target/i386/smm_helper.c | 18 -
target/i386/translate.c | 12 +
tests/qemu-iotests/083.out | 2 +
tests/rtc-test.c | 49 ++
trace-events | 3 +-
util/oslib-posix.c | 4 +-
util/qemu-sockets.c | 68 ++-
52 files changed, 1954 insertions(+), 400 deletions(-)
create mode 100644 contrib/vhost-user-scsi/Makefile.objs
create mode 100644 contrib/vhost-user-scsi/vhost-user-scsi.c
create mode 100644 gdb-xml/i386-32bit-sse.xml
create mode 100644 gdb-xml/i386-32bit.xml
create mode 100644 gdb-xml/i386-64bit-sse.xml
create mode 100644 gdb-xml/i386-64bit.xml
create mode 100644 hw/scsi/vhost-user-scsi.c
create mode 100644 include/hw/virtio/vhost-user-scsi.h
--
1.8.3.1
^ permalink raw reply [flat|nested] 44+ messages in thread
* [Qemu-devel] [PULL 01/33] mc146818rtc: update periodic timer only if it is needed
2017-06-01 12:41 [Qemu-devel] [PULL 00/33] Misc patches for 2017-06-01 Paolo Bonzini
@ 2017-06-01 12:41 ` Paolo Bonzini
2017-06-01 12:41 ` [Qemu-devel] [PULL 02/33] mc146818rtc: precisely count the clock for periodic timer Paolo Bonzini
` (33 subsequent siblings)
34 siblings, 0 replies; 44+ messages in thread
From: Paolo Bonzini @ 2017-06-01 12:41 UTC (permalink / raw)
To: qemu-devel; +Cc: Xiao Guangrong
From: Xiao Guangrong <xiaoguangrong@tencent.com>
Currently, the timer is updated whenever RegA or RegB is written
even if the periodic timer related configuration is not changed
This patch optimizes it slightly to make the update happen only
if its period or enable-status is changed, also later patches are
depend on this optimization
Signed-off-by: Xiao Guangrong <xiaoguangrong@tencent.com>
Message-Id: <20170510083259.3900-2-xiaoguangrong@tencent.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
---
hw/timer/mc146818rtc.c | 18 ++++++++++++++++--
1 file changed, 16 insertions(+), 2 deletions(-)
diff --git a/hw/timer/mc146818rtc.c b/hw/timer/mc146818rtc.c
index 93de3e1..7d78391 100644
--- a/hw/timer/mc146818rtc.c
+++ b/hw/timer/mc146818rtc.c
@@ -391,6 +391,7 @@ static void cmos_ioport_write(void *opaque, hwaddr addr,
uint64_t data, unsigned size)
{
RTCState *s = opaque;
+ bool update_periodic_timer;
if ((addr & 1) == 0) {
s->cmos_index = data & 0x7f;
@@ -423,6 +424,8 @@ static void cmos_ioport_write(void *opaque, hwaddr addr,
}
break;
case RTC_REG_A:
+ update_periodic_timer = (s->cmos_data[RTC_REG_A] ^ data) & 0x0f;
+
if ((data & 0x60) == 0x60) {
if (rtc_running(s)) {
rtc_update_time(s);
@@ -445,10 +448,17 @@ static void cmos_ioport_write(void *opaque, hwaddr addr,
/* UIP bit is read only */
s->cmos_data[RTC_REG_A] = (data & ~REG_A_UIP) |
(s->cmos_data[RTC_REG_A] & REG_A_UIP);
- periodic_timer_update(s, qemu_clock_get_ns(rtc_clock));
+
+ if (update_periodic_timer) {
+ periodic_timer_update(s, qemu_clock_get_ns(rtc_clock));
+ }
+
check_update_timer(s);
break;
case RTC_REG_B:
+ update_periodic_timer = (s->cmos_data[RTC_REG_B] ^ data)
+ & REG_B_PIE;
+
if (data & REG_B_SET) {
/* update cmos to when the rtc was stopping */
if (rtc_running(s)) {
@@ -475,7 +485,11 @@ static void cmos_ioport_write(void *opaque, hwaddr addr,
qemu_irq_lower(s->irq);
}
s->cmos_data[RTC_REG_B] = data;
- periodic_timer_update(s, qemu_clock_get_ns(rtc_clock));
+
+ if (update_periodic_timer) {
+ periodic_timer_update(s, qemu_clock_get_ns(rtc_clock));
+ }
+
check_update_timer(s);
break;
case RTC_REG_C:
--
1.8.3.1
^ permalink raw reply related [flat|nested] 44+ messages in thread
* [Qemu-devel] [PULL 02/33] mc146818rtc: precisely count the clock for periodic timer
2017-06-01 12:41 [Qemu-devel] [PULL 00/33] Misc patches for 2017-06-01 Paolo Bonzini
2017-06-01 12:41 ` [Qemu-devel] [PULL 01/33] mc146818rtc: update periodic timer only if it is needed Paolo Bonzini
@ 2017-06-01 12:41 ` Paolo Bonzini
2017-06-01 12:41 ` [Qemu-devel] [PULL 03/33] mc146818rtc: ensure LOST_TICK_POLICY_SLEW is only enabled on TARGET_I386 Paolo Bonzini
` (32 subsequent siblings)
34 siblings, 0 replies; 44+ messages in thread
From: Paolo Bonzini @ 2017-06-01 12:41 UTC (permalink / raw)
To: qemu-devel; +Cc: Tai Yunfang, Xiao Guangrong
From: Tai Yunfang <yunfangtai@tencent.com>
There are two issues in current code:
1) If the period is changed by re-configuring RegA, the coalesced
irq will be scaled to reflect the new period, however, it
calculates the new interrupt number like this:
s->irq_coalesced = (s->irq_coalesced * s->period) / period;
There are some clocks will be lost if they are not enough to
be squeezed to a single new period that will cause the VM clock
slower
In order to fix the issue, we calculate the interrupt window
based on the precise clock rather than period, then the clocks
lost during period is scaled can be compensated properly
2) If periodic_timer_update() is called due to RegA reconfiguration,
i.e, the period is updated, current time is not the start point
for the next periodic timer, instead, which should start from the
last interrupt, otherwise, the clock in VM will become slow
This patch takes the clocks from last interrupt to current clock
into account and compensates the clocks for the next interrupt,
especially if a complete interrupt was lost in this window, the
time can be caught up by LOST_TICK_POLICY_SLEW
Signed-off-by: Tai Yunfang <yunfangtai@tencent.com>
Signed-off-by: Xiao Guangrong <xiaoguangrong@tencent.com>
Message-Id: <20170510083259.3900-3-xiaoguangrong@tencent.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
---
hw/timer/mc146818rtc.c | 120 +++++++++++++++++++++++++++++++++++++++----------
1 file changed, 97 insertions(+), 23 deletions(-)
diff --git a/hw/timer/mc146818rtc.c b/hw/timer/mc146818rtc.c
index 7d78391..aeb60cc 100644
--- a/hw/timer/mc146818rtc.c
+++ b/hw/timer/mc146818rtc.c
@@ -146,31 +146,100 @@ static void rtc_coalesced_timer(void *opaque)
}
#endif
-/* handle periodic timer */
-static void periodic_timer_update(RTCState *s, int64_t current_time)
+static uint32_t rtc_periodic_clock_ticks(RTCState *s)
{
- int period_code, period;
- int64_t cur_clock, next_irq_clock;
+ int period_code;
+
+ if (!(s->cmos_data[RTC_REG_B] & REG_B_PIE)) {
+ return 0;
+ }
period_code = s->cmos_data[RTC_REG_A] & 0x0f;
- if (period_code != 0
- && (s->cmos_data[RTC_REG_B] & REG_B_PIE)) {
- if (period_code <= 2)
- period_code += 7;
- /* period in 32 Khz cycles */
- period = 1 << (period_code - 1);
-#ifdef TARGET_I386
- if (period != s->period) {
- s->irq_coalesced = (s->irq_coalesced * s->period) / period;
- DPRINTF_C("cmos: coalesced irqs scaled to %d\n", s->irq_coalesced);
- }
- s->period = period;
-#endif
+ if (!period_code) {
+ return 0;
+ }
+
+ if (period_code <= 2) {
+ period_code += 7;
+ }
+
+ /* period in 32 Khz cycles */
+ return 1 << (period_code - 1);
+}
+
+/*
+ * handle periodic timer. @old_period indicates the periodic timer update
+ * is just due to period adjustment.
+ */
+static void
+periodic_timer_update(RTCState *s, int64_t current_time, uint32_t old_period)
+{
+ uint32_t period;
+ int64_t cur_clock, next_irq_clock, lost_clock = 0;
+
+ period = rtc_periodic_clock_ticks(s);
+
+ if (period) {
/* compute 32 khz clock */
cur_clock =
muldiv64(current_time, RTC_CLOCK_RATE, NANOSECONDS_PER_SECOND);
- next_irq_clock = (cur_clock & ~(period - 1)) + period;
+ /*
+ * if the periodic timer's update is due to period re-configuration,
+ * we should count the clock since last interrupt.
+ */
+ if (old_period) {
+ int64_t last_periodic_clock, next_periodic_clock;
+
+ next_periodic_clock = muldiv64(s->next_periodic_time,
+ RTC_CLOCK_RATE, NANOSECONDS_PER_SECOND);
+ last_periodic_clock = next_periodic_clock - old_period;
+ lost_clock = cur_clock - last_periodic_clock;
+ assert(lost_clock >= 0);
+ }
+
+#ifdef TARGET_I386
+ /*
+ * s->irq_coalesced can change for two reasons:
+ *
+ * a) if one or more periodic timer interrupts have been lost,
+ * lost_clock will be more that a period.
+ *
+ * b) when the period may be reconfigured, we expect the OS to
+ * treat delayed tick as the new period. So, when switching
+ * from a shorter to a longer period, scale down the missing,
+ * because the OS will treat past delayed ticks as longer
+ * (leftovers are put back into lost_clock). When switching
+ * to a shorter period, scale up the missing ticks since the
+ * OS handler will treat past delayed ticks as shorter.
+ */
+ if (s->lost_tick_policy == LOST_TICK_POLICY_SLEW) {
+ uint32_t old_irq_coalesced = s->irq_coalesced;
+
+ s->period = period;
+ lost_clock += old_irq_coalesced * old_period;
+ s->irq_coalesced = lost_clock / s->period;
+ lost_clock %= s->period;
+ if (old_irq_coalesced != s->irq_coalesced ||
+ old_period != s->period) {
+ DPRINTF_C("cmos: coalesced irqs scaled from %d to %d, "
+ "period scaled from %d to %d\n", old_irq_coalesced,
+ s->irq_coalesced, old_period, s->period);
+ rtc_coalesced_timer_update(s);
+ }
+ } else
+#endif
+ {
+ /*
+ * no way to compensate the interrupt if LOST_TICK_POLICY_SLEW
+ * is not used, we should make the time progress anyway.
+ */
+ lost_clock = MIN(lost_clock, period);
+ }
+
+ assert(lost_clock >= 0 && lost_clock <= period);
+
+ next_irq_clock = cur_clock + period - lost_clock;
s->next_periodic_time = muldiv64(next_irq_clock, NANOSECONDS_PER_SECOND,
RTC_CLOCK_RATE) + 1;
timer_mod(s->periodic_timer, s->next_periodic_time);
@@ -186,7 +255,7 @@ static void rtc_periodic_timer(void *opaque)
{
RTCState *s = opaque;
- periodic_timer_update(s, s->next_periodic_time);
+ periodic_timer_update(s, s->next_periodic_time, 0);
s->cmos_data[RTC_REG_C] |= REG_C_PF;
if (s->cmos_data[RTC_REG_B] & REG_B_PIE) {
s->cmos_data[RTC_REG_C] |= REG_C_IRQF;
@@ -391,6 +460,7 @@ static void cmos_ioport_write(void *opaque, hwaddr addr,
uint64_t data, unsigned size)
{
RTCState *s = opaque;
+ uint32_t old_period;
bool update_periodic_timer;
if ((addr & 1) == 0) {
@@ -425,6 +495,7 @@ static void cmos_ioport_write(void *opaque, hwaddr addr,
break;
case RTC_REG_A:
update_periodic_timer = (s->cmos_data[RTC_REG_A] ^ data) & 0x0f;
+ old_period = rtc_periodic_clock_ticks(s);
if ((data & 0x60) == 0x60) {
if (rtc_running(s)) {
@@ -450,7 +521,8 @@ static void cmos_ioport_write(void *opaque, hwaddr addr,
(s->cmos_data[RTC_REG_A] & REG_A_UIP);
if (update_periodic_timer) {
- periodic_timer_update(s, qemu_clock_get_ns(rtc_clock));
+ periodic_timer_update(s, qemu_clock_get_ns(rtc_clock),
+ old_period);
}
check_update_timer(s);
@@ -458,6 +530,7 @@ static void cmos_ioport_write(void *opaque, hwaddr addr,
case RTC_REG_B:
update_periodic_timer = (s->cmos_data[RTC_REG_B] ^ data)
& REG_B_PIE;
+ old_period = rtc_periodic_clock_ticks(s);
if (data & REG_B_SET) {
/* update cmos to when the rtc was stopping */
@@ -487,7 +560,8 @@ static void cmos_ioport_write(void *opaque, hwaddr addr,
s->cmos_data[RTC_REG_B] = data;
if (update_periodic_timer) {
- periodic_timer_update(s, qemu_clock_get_ns(rtc_clock));
+ periodic_timer_update(s, qemu_clock_get_ns(rtc_clock),
+ old_period);
}
check_update_timer(s);
@@ -757,7 +831,7 @@ static int rtc_post_load(void *opaque, int version_id)
uint64_t now = qemu_clock_get_ns(rtc_clock);
if (now < s->next_periodic_time ||
now > (s->next_periodic_time + get_max_clock_jump())) {
- periodic_timer_update(s, qemu_clock_get_ns(rtc_clock));
+ periodic_timer_update(s, qemu_clock_get_ns(rtc_clock), 0);
}
}
@@ -822,7 +896,7 @@ static void rtc_notify_clock_reset(Notifier *notifier, void *data)
int64_t now = *(int64_t *)data;
rtc_set_date_from_host(ISA_DEVICE(s));
- periodic_timer_update(s, now);
+ periodic_timer_update(s, now, 0);
check_update_timer(s);
#ifdef TARGET_I386
if (s->lost_tick_policy == LOST_TICK_POLICY_SLEW) {
--
1.8.3.1
^ permalink raw reply related [flat|nested] 44+ messages in thread
* [Qemu-devel] [PULL 03/33] mc146818rtc: ensure LOST_TICK_POLICY_SLEW is only enabled on TARGET_I386
2017-06-01 12:41 [Qemu-devel] [PULL 00/33] Misc patches for 2017-06-01 Paolo Bonzini
2017-06-01 12:41 ` [Qemu-devel] [PULL 01/33] mc146818rtc: update periodic timer only if it is needed Paolo Bonzini
2017-06-01 12:41 ` [Qemu-devel] [PULL 02/33] mc146818rtc: precisely count the clock for periodic timer Paolo Bonzini
@ 2017-06-01 12:41 ` Paolo Bonzini
2017-06-01 12:41 ` [Qemu-devel] [PULL 04/33] mc146818rtc: drop unnecessary '#ifdef TARGET_I386' Paolo Bonzini
` (31 subsequent siblings)
34 siblings, 0 replies; 44+ messages in thread
From: Paolo Bonzini @ 2017-06-01 12:41 UTC (permalink / raw)
To: qemu-devel; +Cc: Xiao Guangrong
From: Xiao Guangrong <xiaoguangrong@tencent.com>
Any tick policy specified on other platforms rather on TARGET_I386
will fall back to LOST_TICK_POLICY_DISCARD silently, this patch makes
sure only TARGET_I386 can enable LOST_TICK_POLICY_SLEW
After that, we can enable LOST_TICK_POLICY_SLEW in the common code
which need not use '#ifdef TARGET_I386' to make these code be x86
specific anymore
Signed-off-by: Xiao Guangrong <xiaoguangrong@tencent.com>
Message-Id: <20170510083259.3900-4-xiaoguangrong@tencent.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
---
hw/timer/mc146818rtc.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/hw/timer/mc146818rtc.c b/hw/timer/mc146818rtc.c
index aeb60cc..4870a72 100644
--- a/hw/timer/mc146818rtc.c
+++ b/hw/timer/mc146818rtc.c
@@ -974,19 +974,19 @@ static void rtc_realizefn(DeviceState *dev, Error **errp)
rtc_set_date_from_host(isadev);
-#ifdef TARGET_I386
switch (s->lost_tick_policy) {
+#ifdef TARGET_I386
case LOST_TICK_POLICY_SLEW:
s->coalesced_timer =
timer_new_ns(rtc_clock, rtc_coalesced_timer, s);
break;
+#endif
case LOST_TICK_POLICY_DISCARD:
break;
default:
error_setg(errp, "Invalid lost tick policy.");
return;
}
-#endif
s->periodic_timer = timer_new_ns(rtc_clock, rtc_periodic_timer, s);
s->update_timer = timer_new_ns(rtc_clock, rtc_update_timer, s);
--
1.8.3.1
^ permalink raw reply related [flat|nested] 44+ messages in thread
* [Qemu-devel] [PULL 04/33] mc146818rtc: drop unnecessary '#ifdef TARGET_I386'
2017-06-01 12:41 [Qemu-devel] [PULL 00/33] Misc patches for 2017-06-01 Paolo Bonzini
` (2 preceding siblings ...)
2017-06-01 12:41 ` [Qemu-devel] [PULL 03/33] mc146818rtc: ensure LOST_TICK_POLICY_SLEW is only enabled on TARGET_I386 Paolo Bonzini
@ 2017-06-01 12:41 ` Paolo Bonzini
2017-06-01 12:41 ` [Qemu-devel] [PULL 05/33] mc146818rtc: embrace all x86 specific code Paolo Bonzini
` (30 subsequent siblings)
34 siblings, 0 replies; 44+ messages in thread
From: Paolo Bonzini @ 2017-06-01 12:41 UTC (permalink / raw)
To: qemu-devel; +Cc: Xiao Guangrong
From: Xiao Guangrong <xiaoguangrong@tencent.com>
If the code purely depends on LOST_TICK_POLICY_SLEW, we can simply
drop '#ifdef TARGET_I386' as only x86 can enable this tick policy
Signed-off-by: Xiao Guangrong <xiaoguangrong@tencent.com>
Message-Id: <20170510083259.3900-5-xiaoguangrong@tencent.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
---
hw/timer/mc146818rtc.c | 16 +++-------------
1 file changed, 3 insertions(+), 13 deletions(-)
diff --git a/hw/timer/mc146818rtc.c b/hw/timer/mc146818rtc.c
index 4870a72..f9d6181 100644
--- a/hw/timer/mc146818rtc.c
+++ b/hw/timer/mc146818rtc.c
@@ -112,7 +112,6 @@ static uint64_t get_guest_rtc_ns(RTCState *s)
guest_clock - s->last_update + s->offset;
}
-#ifdef TARGET_I386
static void rtc_coalesced_timer_update(RTCState *s)
{
if (s->irq_coalesced == 0) {
@@ -126,6 +125,7 @@ static void rtc_coalesced_timer_update(RTCState *s)
}
}
+#ifdef TARGET_I386
static void rtc_coalesced_timer(void *opaque)
{
RTCState *s = opaque;
@@ -198,7 +198,6 @@ periodic_timer_update(RTCState *s, int64_t current_time, uint32_t old_period)
assert(lost_clock >= 0);
}
-#ifdef TARGET_I386
/*
* s->irq_coalesced can change for two reasons:
*
@@ -227,9 +226,7 @@ periodic_timer_update(RTCState *s, int64_t current_time, uint32_t old_period)
s->irq_coalesced, old_period, s->period);
rtc_coalesced_timer_update(s);
}
- } else
-#endif
- {
+ } else {
/*
* no way to compensate the interrupt if LOST_TICK_POLICY_SLEW
* is not used, we should make the time progress anyway.
@@ -244,9 +241,7 @@ periodic_timer_update(RTCState *s, int64_t current_time, uint32_t old_period)
RTC_CLOCK_RATE) + 1;
timer_mod(s->periodic_timer, s->next_periodic_time);
} else {
-#ifdef TARGET_I386
s->irq_coalesced = 0;
-#endif
timer_del(s->periodic_timer);
}
}
@@ -835,13 +830,11 @@ static int rtc_post_load(void *opaque, int version_id)
}
}
-#ifdef TARGET_I386
if (version_id >= 2) {
if (s->lost_tick_policy == LOST_TICK_POLICY_SLEW) {
rtc_coalesced_timer_update(s);
}
}
-#endif
return 0;
}
@@ -898,11 +891,10 @@ static void rtc_notify_clock_reset(Notifier *notifier, void *data)
rtc_set_date_from_host(ISA_DEVICE(s));
periodic_timer_update(s, now, 0);
check_update_timer(s);
-#ifdef TARGET_I386
+
if (s->lost_tick_policy == LOST_TICK_POLICY_SLEW) {
rtc_coalesced_timer_update(s);
}
-#endif
}
/* set CMOS shutdown status register (index 0xF) as S3_resume(0xFE)
@@ -923,12 +915,10 @@ static void rtc_reset(void *opaque)
qemu_irq_lower(s->irq);
-#ifdef TARGET_I386
if (s->lost_tick_policy == LOST_TICK_POLICY_SLEW) {
s->irq_coalesced = 0;
s->irq_reinject_on_ack_count = 0;
}
-#endif
}
static const MemoryRegionOps cmos_ops = {
--
1.8.3.1
^ permalink raw reply related [flat|nested] 44+ messages in thread
* [Qemu-devel] [PULL 05/33] mc146818rtc: embrace all x86 specific code
2017-06-01 12:41 [Qemu-devel] [PULL 00/33] Misc patches for 2017-06-01 Paolo Bonzini
` (3 preceding siblings ...)
2017-06-01 12:41 ` [Qemu-devel] [PULL 04/33] mc146818rtc: drop unnecessary '#ifdef TARGET_I386' Paolo Bonzini
@ 2017-06-01 12:41 ` Paolo Bonzini
2017-06-01 12:41 ` [Qemu-devel] [PULL 06/33] kvm: irqchip: trace changes on msi add/remove Paolo Bonzini
` (29 subsequent siblings)
34 siblings, 0 replies; 44+ messages in thread
From: Paolo Bonzini @ 2017-06-01 12:41 UTC (permalink / raw)
To: qemu-devel; +Cc: Xiao Guangrong
From: Xiao Guangrong <xiaoguangrong@tencent.com>
Introduce a function, rtc_policy_slew_deliver_irq(), which delivers
irq if LOST_TICK_POLICY_SLEW is used, as which is only supported on
x86, other platforms call it will trigger a assert
After that, we can move the x86 specific code to the common place
Signed-off-by: Xiao Guangrong <xiaoguangrong@tencent.com>
Message-Id: <20170510083259.3900-6-xiaoguangrong@tencent.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
---
hw/timer/mc146818rtc.c | 60 ++++++++++++++++++++++++++------------------------
1 file changed, 31 insertions(+), 29 deletions(-)
diff --git a/hw/timer/mc146818rtc.c b/hw/timer/mc146818rtc.c
index f9d6181..542cd09 100644
--- a/hw/timer/mc146818rtc.c
+++ b/hw/timer/mc146818rtc.c
@@ -125,17 +125,34 @@ static void rtc_coalesced_timer_update(RTCState *s)
}
}
+static QLIST_HEAD(, RTCState) rtc_devices =
+ QLIST_HEAD_INITIALIZER(rtc_devices);
+
#ifdef TARGET_I386
+void qmp_rtc_reset_reinjection(Error **errp)
+{
+ RTCState *s;
+
+ QLIST_FOREACH(s, &rtc_devices, link) {
+ s->irq_coalesced = 0;
+ }
+}
+
+static bool rtc_policy_slew_deliver_irq(RTCState *s)
+{
+ apic_reset_irq_delivered();
+ qemu_irq_raise(s->irq);
+ return apic_get_irq_delivered();
+}
+
static void rtc_coalesced_timer(void *opaque)
{
RTCState *s = opaque;
if (s->irq_coalesced != 0) {
- apic_reset_irq_delivered();
s->cmos_data[RTC_REG_C] |= 0xc0;
DPRINTF_C("cmos: injecting from timer\n");
- qemu_irq_raise(s->irq);
- if (apic_get_irq_delivered()) {
+ if (rtc_policy_slew_deliver_irq(s)) {
s->irq_coalesced--;
DPRINTF_C("cmos: coalesced irqs decreased to %d\n",
s->irq_coalesced);
@@ -144,6 +161,12 @@ static void rtc_coalesced_timer(void *opaque)
rtc_coalesced_timer_update(s);
}
+#else
+static bool rtc_policy_slew_deliver_irq(RTCState *s)
+{
+ assert(0);
+ return false;
+}
#endif
static uint32_t rtc_periodic_clock_ticks(RTCState *s)
@@ -254,21 +277,17 @@ static void rtc_periodic_timer(void *opaque)
s->cmos_data[RTC_REG_C] |= REG_C_PF;
if (s->cmos_data[RTC_REG_B] & REG_B_PIE) {
s->cmos_data[RTC_REG_C] |= REG_C_IRQF;
-#ifdef TARGET_I386
if (s->lost_tick_policy == LOST_TICK_POLICY_SLEW) {
if (s->irq_reinject_on_ack_count >= RTC_REINJECT_ON_ACK_COUNT)
- s->irq_reinject_on_ack_count = 0;
- apic_reset_irq_delivered();
- qemu_irq_raise(s->irq);
- if (!apic_get_irq_delivered()) {
+ s->irq_reinject_on_ack_count = 0;
+ if (!rtc_policy_slew_deliver_irq(s)) {
s->irq_coalesced++;
rtc_coalesced_timer_update(s);
DPRINTF_C("cmos: coalesced irqs increased to %d\n",
s->irq_coalesced);
}
} else
-#endif
- qemu_irq_raise(s->irq);
+ qemu_irq_raise(s->irq);
}
}
@@ -612,20 +631,6 @@ static void rtc_get_time(RTCState *s, struct tm *tm)
rtc_from_bcd(s, s->cmos_data[RTC_CENTURY]) * 100 - 1900;
}
-static QLIST_HEAD(, RTCState) rtc_devices =
- QLIST_HEAD_INITIALIZER(rtc_devices);
-
-#ifdef TARGET_I386
-void qmp_rtc_reset_reinjection(Error **errp)
-{
- RTCState *s;
-
- QLIST_FOREACH(s, &rtc_devices, link) {
- s->irq_coalesced = 0;
- }
-}
-#endif
-
static void rtc_set_time(RTCState *s)
{
struct tm tm;
@@ -745,22 +750,19 @@ static uint64_t cmos_ioport_read(void *opaque, hwaddr addr,
if (ret & (REG_C_UF | REG_C_AF)) {
check_update_timer(s);
}
-#ifdef TARGET_I386
+
if(s->irq_coalesced &&
(s->cmos_data[RTC_REG_B] & REG_B_PIE) &&
s->irq_reinject_on_ack_count < RTC_REINJECT_ON_ACK_COUNT) {
s->irq_reinject_on_ack_count++;
s->cmos_data[RTC_REG_C] |= REG_C_IRQF | REG_C_PF;
- apic_reset_irq_delivered();
DPRINTF_C("cmos: injecting on ack\n");
- qemu_irq_raise(s->irq);
- if (apic_get_irq_delivered()) {
+ if (rtc_policy_slew_deliver_irq(s)) {
s->irq_coalesced--;
DPRINTF_C("cmos: coalesced irqs decreased to %d\n",
s->irq_coalesced);
}
}
-#endif
break;
default:
ret = s->cmos_data[s->cmos_index];
--
1.8.3.1
^ permalink raw reply related [flat|nested] 44+ messages in thread
* [Qemu-devel] [PULL 06/33] kvm: irqchip: trace changes on msi add/remove
2017-06-01 12:41 [Qemu-devel] [PULL 00/33] Misc patches for 2017-06-01 Paolo Bonzini
` (4 preceding siblings ...)
2017-06-01 12:41 ` [Qemu-devel] [PULL 05/33] mc146818rtc: embrace all x86 specific code Paolo Bonzini
@ 2017-06-01 12:41 ` Paolo Bonzini
2017-06-01 12:41 ` [Qemu-devel] [PULL 07/33] msix: trace control bit write op Paolo Bonzini
` (28 subsequent siblings)
34 siblings, 0 replies; 44+ messages in thread
From: Paolo Bonzini @ 2017-06-01 12:41 UTC (permalink / raw)
To: qemu-devel; +Cc: Peter Xu
From: Peter Xu <peterx@redhat.com>
It'll be nice to know which virq belongs to which device/vector when
adding msi routes, so adding two more parameters for the add trace.
Meanwhile, releasing virq has no tracing before. Add one for it.
Signed-off-by: Peter Xu <peterx@redhat.com>
Message-Id: <1494309644-18743-2-git-send-email-peterx@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
---
kvm-all.c | 4 +++-
trace-events | 3 ++-
2 files changed, 5 insertions(+), 2 deletions(-)
diff --git a/kvm-all.c b/kvm-all.c
index 90b8573..2598b1f 100644
--- a/kvm-all.c
+++ b/kvm-all.c
@@ -1144,6 +1144,7 @@ void kvm_irqchip_release_virq(KVMState *s, int virq)
}
clear_gsi(s, virq);
kvm_arch_release_virq_post(virq);
+ trace_kvm_irqchip_release_virq(virq);
}
static unsigned int kvm_hash_msi(uint32_t data)
@@ -1287,7 +1288,8 @@ int kvm_irqchip_add_msi_route(KVMState *s, int vector, PCIDevice *dev)
return -EINVAL;
}
- trace_kvm_irqchip_add_msi_route(virq);
+ trace_kvm_irqchip_add_msi_route(dev ? dev->name : (char *)"N/A",
+ vector, virq);
kvm_add_routing_entry(s, &kroute);
kvm_arch_add_msi_route_post(&kroute, vector, dev);
diff --git a/trace-events b/trace-events
index e582d63..f01ec05 100644
--- a/trace-events
+++ b/trace-events
@@ -69,8 +69,9 @@ kvm_device_ioctl(int fd, int type, void *arg) "dev fd %d, type 0x%x, arg %p"
kvm_failed_reg_get(uint64_t id, const char *msg) "Warning: Unable to retrieve ONEREG %" PRIu64 " from KVM: %s"
kvm_failed_reg_set(uint64_t id, const char *msg) "Warning: Unable to set ONEREG %" PRIu64 " to KVM: %s"
kvm_irqchip_commit_routes(void) ""
-kvm_irqchip_add_msi_route(int virq) "Adding MSI route virq=%d"
+kvm_irqchip_add_msi_route(char *name, int vector, int virq) "dev %s vector %d virq %d"
kvm_irqchip_update_msi_route(int virq) "Updating MSI route virq=%d"
+kvm_irqchip_release_virq(int virq) "virq %d"
# TCG related tracing (mostly disabled by default)
# cpu-exec.c
--
1.8.3.1
^ permalink raw reply related [flat|nested] 44+ messages in thread
* [Qemu-devel] [PULL 07/33] msix: trace control bit write op
2017-06-01 12:41 [Qemu-devel] [PULL 00/33] Misc patches for 2017-06-01 Paolo Bonzini
` (5 preceding siblings ...)
2017-06-01 12:41 ` [Qemu-devel] [PULL 06/33] kvm: irqchip: trace changes on msi add/remove Paolo Bonzini
@ 2017-06-01 12:41 ` Paolo Bonzini
2017-06-01 12:41 ` [Qemu-devel] [PULL 08/33] kvm: irqchip: skip update msi when disabled Paolo Bonzini
` (27 subsequent siblings)
34 siblings, 0 replies; 44+ messages in thread
From: Paolo Bonzini @ 2017-06-01 12:41 UTC (permalink / raw)
To: qemu-devel; +Cc: Peter Xu
From: Peter Xu <peterx@redhat.com>
Meanwhile, abstract a function to detect msix masked bit.
Signed-off-by: Peter Xu <peterx@redhat.com>
Message-Id: <1494309644-18743-3-git-send-email-peterx@redhat.com>
Acked-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
---
hw/pci/msix.c | 11 +++++++++--
hw/pci/trace-events | 3 +++
2 files changed, 12 insertions(+), 2 deletions(-)
diff --git a/hw/pci/msix.c b/hw/pci/msix.c
index bb54e8b..fc5fe51 100644
--- a/hw/pci/msix.c
+++ b/hw/pci/msix.c
@@ -22,6 +22,7 @@
#include "hw/xen/xen.h"
#include "qemu/range.h"
#include "qapi/error.h"
+#include "trace.h"
#define MSIX_CAP_LENGTH 12
@@ -130,10 +131,14 @@ static void msix_handle_mask_update(PCIDevice *dev, int vector, bool was_masked)
}
}
+static bool msix_masked(PCIDevice *dev)
+{
+ return dev->config[dev->msix_cap + MSIX_CONTROL_OFFSET] & MSIX_MASKALL_MASK;
+}
+
static void msix_update_function_masked(PCIDevice *dev)
{
- dev->msix_function_masked = !msix_enabled(dev) ||
- (dev->config[dev->msix_cap + MSIX_CONTROL_OFFSET] & MSIX_MASKALL_MASK);
+ dev->msix_function_masked = !msix_enabled(dev) || msix_masked(dev);
}
/* Handle MSI-X capability config write. */
@@ -148,6 +153,8 @@ void msix_write_config(PCIDevice *dev, uint32_t addr,
return;
}
+ trace_msix_write_config(dev->name, msix_enabled(dev), msix_masked(dev));
+
was_masked = dev->msix_function_masked;
msix_update_function_masked(dev);
diff --git a/hw/pci/trace-events b/hw/pci/trace-events
index 2b9cf24..83c8f5a 100644
--- a/hw/pci/trace-events
+++ b/hw/pci/trace-events
@@ -7,3 +7,6 @@ pci_update_mappings_add(void *d, uint32_t bus, uint32_t slot, uint32_t func, int
# hw/pci/pci_host.c
pci_cfg_read(const char *dev, unsigned devid, unsigned fnid, unsigned offs, unsigned val) "%s %02u:%u @0x%x -> 0x%x"
pci_cfg_write(const char *dev, unsigned devid, unsigned fnid, unsigned offs, unsigned val) "%s %02u:%u @0x%x <- 0x%x"
+
+# hw/pci/msix.c
+msix_write_config(char *name, bool enabled, bool masked) "dev %s enabled %d masked %d"
--
1.8.3.1
^ permalink raw reply related [flat|nested] 44+ messages in thread
* [Qemu-devel] [PULL 08/33] kvm: irqchip: skip update msi when disabled
2017-06-01 12:41 [Qemu-devel] [PULL 00/33] Misc patches for 2017-06-01 Paolo Bonzini
` (6 preceding siblings ...)
2017-06-01 12:41 ` [Qemu-devel] [PULL 07/33] msix: trace control bit write op Paolo Bonzini
@ 2017-06-01 12:41 ` Paolo Bonzini
2017-06-01 12:41 ` [Qemu-devel] [PULL 09/33] Check the return value of fcntl in qemu_set_cloexec Paolo Bonzini
` (26 subsequent siblings)
34 siblings, 0 replies; 44+ messages in thread
From: Paolo Bonzini @ 2017-06-01 12:41 UTC (permalink / raw)
To: qemu-devel; +Cc: Peter Xu
From: Peter Xu <peterx@redhat.com>
It's possible that one device kept its irqfd/virq there even when
MSI/MSIX was disabled globally for that device. One example is
virtio-net-pci (see commit f1d0f15a6 and virtio_pci_vq_vector_mask()).
It is used as a fast path to avoid allocate/release irqfd/virq
frequently when guest enables/disables MSIX.
However, this fast path brought a problem to msi_route_list, that the
device MSIRouteEntry is still dangling there even if MSIX disabled -
then we cannot know which message to fetch, even if we can, the messages
are meaningless. In this case, we can just simply ignore this entry.
It's safe, since when MSIX is enabled again, we'll rebuild them no
matter what.
Fixes: https://bugzilla.redhat.com/show_bug.cgi?id=1448813
Signed-off-by: Peter Xu <peterx@redhat.com>
Message-Id: <1494309644-18743-4-git-send-email-peterx@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
---
target/i386/kvm.c | 12 +++++++++---
1 file changed, 9 insertions(+), 3 deletions(-)
diff --git a/target/i386/kvm.c b/target/i386/kvm.c
index 011d4a5..82c72d2 100644
--- a/target/i386/kvm.c
+++ b/target/i386/kvm.c
@@ -43,6 +43,7 @@
#include "standard-headers/asm-x86/hyperv.h"
#include "hw/pci/pci.h"
#include "hw/pci/msi.h"
+#include "hw/pci/msix.h"
#include "migration/blocker.h"
#include "exec/memattrs.h"
#include "trace.h"
@@ -3510,12 +3511,17 @@ static void kvm_update_msi_routes_all(void *private, bool global,
int cnt = 0;
MSIRouteEntry *entry;
MSIMessage msg;
+ PCIDevice *dev;
+
/* TODO: explicit route update */
QLIST_FOREACH(entry, &msi_route_list, list) {
cnt++;
- msg = pci_get_msi_message(entry->dev, entry->vector);
- kvm_irqchip_update_msi_route(kvm_state, entry->virq,
- msg, entry->dev);
+ dev = entry->dev;
+ if (!msix_enabled(dev) && !msi_enabled(dev)) {
+ continue;
+ }
+ msg = pci_get_msi_message(dev, entry->vector);
+ kvm_irqchip_update_msi_route(kvm_state, entry->virq, msg, dev);
}
kvm_irqchip_commit_routes(kvm_state);
trace_kvm_x86_update_msi_routes(cnt);
--
1.8.3.1
^ permalink raw reply related [flat|nested] 44+ messages in thread
* [Qemu-devel] [PULL 09/33] Check the return value of fcntl in qemu_set_cloexec
2017-06-01 12:41 [Qemu-devel] [PULL 00/33] Misc patches for 2017-06-01 Paolo Bonzini
` (7 preceding siblings ...)
2017-06-01 12:41 ` [Qemu-devel] [PULL 08/33] kvm: irqchip: skip update msi when disabled Paolo Bonzini
@ 2017-06-01 12:41 ` Paolo Bonzini
2017-06-01 12:41 ` [Qemu-devel] [PULL 10/33] nbd: strict nbd_wr_syncv Paolo Bonzini
` (25 subsequent siblings)
34 siblings, 0 replies; 44+ messages in thread
From: Paolo Bonzini @ 2017-06-01 12:41 UTC (permalink / raw)
To: qemu-devel; +Cc: Stefano Stabellini, groug, pbonzini, Eric Blake
From: Stefano Stabellini <sstabellini@kernel.org>
Assert that the return value is not an error. This issue was found by
Coverity.
CID: 1374831
Signed-off-by: Stefano Stabellini <sstabellini@kernel.org>
CC: groug@kaod.org
CC: pbonzini@redhat.com
CC: Eric Blake <eblake@redhat.com>
Message-Id: <1494356693-13190-2-git-send-email-sstabellini@kernel.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
---
util/oslib-posix.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/util/oslib-posix.c b/util/oslib-posix.c
index 4d9189e..16894ad 100644
--- a/util/oslib-posix.c
+++ b/util/oslib-posix.c
@@ -182,7 +182,9 @@ void qemu_set_cloexec(int fd)
{
int f;
f = fcntl(fd, F_GETFD);
- fcntl(fd, F_SETFD, f | FD_CLOEXEC);
+ assert(f != -1);
+ f = fcntl(fd, F_SETFD, f | FD_CLOEXEC);
+ assert(f != -1);
}
/*
--
1.8.3.1
^ permalink raw reply related [flat|nested] 44+ messages in thread
* [Qemu-devel] [PULL 10/33] nbd: strict nbd_wr_syncv
2017-06-01 12:41 [Qemu-devel] [PULL 00/33] Misc patches for 2017-06-01 Paolo Bonzini
` (8 preceding siblings ...)
2017-06-01 12:41 ` [Qemu-devel] [PULL 09/33] Check the return value of fcntl in qemu_set_cloexec Paolo Bonzini
@ 2017-06-01 12:41 ` Paolo Bonzini
2017-06-01 12:41 ` [Qemu-devel] [PULL 11/33] nbd: read_sync and friends: return 0 on success Paolo Bonzini
` (24 subsequent siblings)
34 siblings, 0 replies; 44+ messages in thread
From: Paolo Bonzini @ 2017-06-01 12:41 UTC (permalink / raw)
To: qemu-devel; +Cc: Vladimir Sementsov-Ogievskiy
From: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
nbd_wr_syncv is called either from coroutine or from client negotiation
code, when socket is in blocking mode. So, -EAGAIN is impossible.
Furthermore, EAGAIN is confusing, as, what to read/write again? With
EAGAIN as a return code we don't know how much data is already
read or written by the function, so in case of EAGAIN the whole
communication is broken.
Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Message-Id: <20170516094533.6160-2-vsementsov@virtuozzo.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
---
nbd/common.c | 11 ++++++-----
1 file changed, 6 insertions(+), 5 deletions(-)
diff --git a/nbd/common.c b/nbd/common.c
index dccbb8e..4db45b3 100644
--- a/nbd/common.c
+++ b/nbd/common.c
@@ -20,6 +20,10 @@
#include "qapi/error.h"
#include "nbd-internal.h"
+/* nbd_wr_syncv
+ * The function may be called from coroutine or from non-coroutine context.
+ * When called from non-coroutine context @ioc must be in blocking mode.
+ */
ssize_t nbd_wr_syncv(QIOChannel *ioc,
struct iovec *iov,
size_t niov,
@@ -42,11 +46,8 @@ ssize_t nbd_wr_syncv(QIOChannel *ioc,
len = qio_channel_writev(ioc, local_iov, nlocal_iov, &local_err);
}
if (len == QIO_CHANNEL_ERR_BLOCK) {
- if (qemu_in_coroutine()) {
- qio_channel_yield(ioc, do_read ? G_IO_IN : G_IO_OUT);
- } else {
- return -EAGAIN;
- }
+ assert(qemu_in_coroutine());
+ qio_channel_yield(ioc, do_read ? G_IO_IN : G_IO_OUT);
continue;
}
if (len < 0) {
--
1.8.3.1
^ permalink raw reply related [flat|nested] 44+ messages in thread
* [Qemu-devel] [PULL 11/33] nbd: read_sync and friends: return 0 on success
2017-06-01 12:41 [Qemu-devel] [PULL 00/33] Misc patches for 2017-06-01 Paolo Bonzini
` (9 preceding siblings ...)
2017-06-01 12:41 ` [Qemu-devel] [PULL 10/33] nbd: strict nbd_wr_syncv Paolo Bonzini
@ 2017-06-01 12:41 ` Paolo Bonzini
2017-06-01 12:41 ` [Qemu-devel] [PULL 12/33] nbd: add errp parameter to nbd_wr_syncv() Paolo Bonzini
` (23 subsequent siblings)
34 siblings, 0 replies; 44+ messages in thread
From: Paolo Bonzini @ 2017-06-01 12:41 UTC (permalink / raw)
To: qemu-devel; +Cc: Vladimir Sementsov-Ogievskiy
From: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
functions read_sync, drop_sync, write_sync, and also
nbd_negotiate_write, nbd_negotiate_read, nbd_negotiate_drop_sync
returns number of processed bytes. But what this number can be,
except requested number of bytes?
Actually, underlying nbd_wr_syncv function returns a value >= 0 and
!= requested_bytes only on eof on read operation. So, firstly, it is
impossible on write (let's add an assert) and on read it actually
means, that communication is broken (except nbd_receive_reply, see
below).
Most of callers operate like this:
if (func(..., size) != size) {
/* error path */
}
, i.e.:
1. They are not interested in partial success
2. Extra duplications in code (especially bad are duplications of
magic numbers)
3. User doesn't see actual error message, as return code is lost.
(this patch doesn't fix this point, but it makes fixing easier)
Several callers handles ret >= 0 and != requested-size separately, by
just returning EINVAL in this case. This patch makes read_sync and
friends return EINVAL in this case, so final behavior is the same.
And only one caller - nbd_receive_reply() does something not so
obvious. It returns EINVAL for ret > 0 and != requested-size, like
previous group, but for ret == 0 it returns 0. The only caller of
nbd_receive_reply() - nbd_read_reply_entry() handles ret == 0 in the
same way as ret < 0, so for now it doesn't matter. However, in
following commits error path handling will be improved and we'll need
to distinguish success from fail in this case too. So, this patch adds
separate helper for this case - read_sync_eof.
Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Message-Id: <20170516094533.6160-3-vsementsov@virtuozzo.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
---
nbd/client.c | 63 ++++++++++++++++------------------------
nbd/nbd-internal.h | 34 +++++++++++++++++++---
nbd/server.c | 84 +++++++++++++++++++++---------------------------------
3 files changed, 88 insertions(+), 93 deletions(-)
diff --git a/nbd/client.c b/nbd/client.c
index a58fb02..6b74a62 100644
--- a/nbd/client.c
+++ b/nbd/client.c
@@ -86,9 +86,9 @@ static QTAILQ_HEAD(, NBDExport) exports = QTAILQ_HEAD_INITIALIZER(exports);
*/
-/* Discard length bytes from channel. Return -errno on failure, or
- * the amount of bytes consumed. */
-static ssize_t drop_sync(QIOChannel *ioc, size_t size)
+/* Discard length bytes from channel. Return -errno on failure and 0 on
+ * success*/
+static int drop_sync(QIOChannel *ioc, size_t size)
{
ssize_t ret = 0;
char small[1024];
@@ -96,14 +96,13 @@ static ssize_t drop_sync(QIOChannel *ioc, size_t size)
buffer = sizeof(small) >= size ? small : g_malloc(MIN(65536, size));
while (size > 0) {
- ssize_t count = read_sync(ioc, buffer, MIN(65536, size));
+ ssize_t count = MIN(65536, size);
+ ret = read_sync(ioc, buffer, MIN(65536, size));
- if (count <= 0) {
+ if (ret < 0) {
goto cleanup;
}
- assert(count <= size);
size -= count;
- ret += count;
}
cleanup:
@@ -136,12 +135,12 @@ static int nbd_send_option_request(QIOChannel *ioc, uint32_t opt,
stl_be_p(&req.option, opt);
stl_be_p(&req.length, len);
- if (write_sync(ioc, &req, sizeof(req)) != sizeof(req)) {
+ if (write_sync(ioc, &req, sizeof(req)) < 0) {
error_setg(errp, "Failed to send option request header");
return -1;
}
- if (len && write_sync(ioc, (char *) data, len) != len) {
+ if (len && write_sync(ioc, (char *) data, len) < 0) {
error_setg(errp, "Failed to send option request data");
return -1;
}
@@ -170,7 +169,7 @@ static int nbd_receive_option_reply(QIOChannel *ioc, uint32_t opt,
nbd_opt_reply *reply, Error **errp)
{
QEMU_BUILD_BUG_ON(sizeof(*reply) != 20);
- if (read_sync(ioc, reply, sizeof(*reply)) != sizeof(*reply)) {
+ if (read_sync(ioc, reply, sizeof(*reply)) < 0) {
error_setg(errp, "failed to read option reply");
nbd_send_opt_abort(ioc);
return -1;
@@ -219,7 +218,7 @@ static int nbd_handle_reply_err(QIOChannel *ioc, nbd_opt_reply *reply,
goto cleanup;
}
msg = g_malloc(reply->length + 1);
- if (read_sync(ioc, msg, reply->length) != reply->length) {
+ if (read_sync(ioc, msg, reply->length) < 0) {
error_setg(errp, "failed to read option error message");
goto cleanup;
}
@@ -321,7 +320,7 @@ static int nbd_receive_list(QIOChannel *ioc, const char *want, bool *match,
nbd_send_opt_abort(ioc);
return -1;
}
- if (read_sync(ioc, &namelen, sizeof(namelen)) != sizeof(namelen)) {
+ if (read_sync(ioc, &namelen, sizeof(namelen)) < 0) {
error_setg(errp, "failed to read option name length");
nbd_send_opt_abort(ioc);
return -1;
@@ -334,7 +333,7 @@ static int nbd_receive_list(QIOChannel *ioc, const char *want, bool *match,
return -1;
}
if (namelen != strlen(want)) {
- if (drop_sync(ioc, len) != len) {
+ if (drop_sync(ioc, len) < 0) {
error_setg(errp, "failed to skip export name with wrong length");
nbd_send_opt_abort(ioc);
return -1;
@@ -343,14 +342,14 @@ static int nbd_receive_list(QIOChannel *ioc, const char *want, bool *match,
}
assert(namelen < sizeof(name));
- if (read_sync(ioc, name, namelen) != namelen) {
+ if (read_sync(ioc, name, namelen) < 0) {
error_setg(errp, "failed to read export name");
nbd_send_opt_abort(ioc);
return -1;
}
name[namelen] = '\0';
len -= namelen;
- if (drop_sync(ioc, len) != len) {
+ if (drop_sync(ioc, len) < 0) {
error_setg(errp, "failed to read export description");
nbd_send_opt_abort(ioc);
return -1;
@@ -477,7 +476,7 @@ int nbd_receive_negotiate(QIOChannel *ioc, const char *name, uint16_t *flags,
goto fail;
}
- if (read_sync(ioc, buf, 8) != 8) {
+ if (read_sync(ioc, buf, 8) < 0) {
error_setg(errp, "Failed to read data");
goto fail;
}
@@ -503,7 +502,7 @@ int nbd_receive_negotiate(QIOChannel *ioc, const char *name, uint16_t *flags,
goto fail;
}
- if (read_sync(ioc, &magic, sizeof(magic)) != sizeof(magic)) {
+ if (read_sync(ioc, &magic, sizeof(magic)) < 0) {
error_setg(errp, "Failed to read magic");
goto fail;
}
@@ -515,8 +514,7 @@ int nbd_receive_negotiate(QIOChannel *ioc, const char *name, uint16_t *flags,
uint16_t globalflags;
bool fixedNewStyle = false;
- if (read_sync(ioc, &globalflags, sizeof(globalflags)) !=
- sizeof(globalflags)) {
+ if (read_sync(ioc, &globalflags, sizeof(globalflags)) < 0) {
error_setg(errp, "Failed to read server flags");
goto fail;
}
@@ -534,8 +532,7 @@ int nbd_receive_negotiate(QIOChannel *ioc, const char *name, uint16_t *flags,
}
/* client requested flags */
clientflags = cpu_to_be32(clientflags);
- if (write_sync(ioc, &clientflags, sizeof(clientflags)) !=
- sizeof(clientflags)) {
+ if (write_sync(ioc, &clientflags, sizeof(clientflags)) < 0) {
error_setg(errp, "Failed to send clientflags field");
goto fail;
}
@@ -573,13 +570,13 @@ int nbd_receive_negotiate(QIOChannel *ioc, const char *name, uint16_t *flags,
}
/* Read the response */
- if (read_sync(ioc, &s, sizeof(s)) != sizeof(s)) {
+ if (read_sync(ioc, &s, sizeof(s)) < 0) {
error_setg(errp, "Failed to read export length");
goto fail;
}
*size = be64_to_cpu(s);
- if (read_sync(ioc, flags, sizeof(*flags)) != sizeof(*flags)) {
+ if (read_sync(ioc, flags, sizeof(*flags)) < 0) {
error_setg(errp, "Failed to read export flags");
goto fail;
}
@@ -596,14 +593,14 @@ int nbd_receive_negotiate(QIOChannel *ioc, const char *name, uint16_t *flags,
goto fail;
}
- if (read_sync(ioc, &s, sizeof(s)) != sizeof(s)) {
+ if (read_sync(ioc, &s, sizeof(s)) < 0) {
error_setg(errp, "Failed to read export length");
goto fail;
}
*size = be64_to_cpu(s);
TRACE("Size is %" PRIu64, *size);
- if (read_sync(ioc, &oldflags, sizeof(oldflags)) != sizeof(oldflags)) {
+ if (read_sync(ioc, &oldflags, sizeof(oldflags)) < 0) {
error_setg(errp, "Failed to read export flags");
goto fail;
}
@@ -619,7 +616,7 @@ int nbd_receive_negotiate(QIOChannel *ioc, const char *name, uint16_t *flags,
}
TRACE("Size is %" PRIu64 ", export flags %" PRIx16, *size, *flags);
- if (zeroes && drop_sync(ioc, 124) != 124) {
+ if (zeroes && drop_sync(ioc, 124) < 0) {
error_setg(errp, "Failed to read reserved block");
goto fail;
}
@@ -744,7 +741,6 @@ int nbd_disconnect(int fd)
ssize_t nbd_send_request(QIOChannel *ioc, NBDRequest *request)
{
uint8_t buf[NBD_REQUEST_SIZE];
- ssize_t ret;
TRACE("Sending request to server: "
"{ .from = %" PRIu64", .len = %" PRIu32 ", .handle = %" PRIu64
@@ -759,16 +755,7 @@ ssize_t nbd_send_request(QIOChannel *ioc, NBDRequest *request)
stq_be_p(buf + 16, request->from);
stl_be_p(buf + 24, request->len);
- ret = write_sync(ioc, buf, sizeof(buf));
- if (ret < 0) {
- return ret;
- }
-
- if (ret != sizeof(buf)) {
- LOG("writing to socket failed");
- return -EINVAL;
- }
- return 0;
+ return write_sync(ioc, buf, sizeof(buf));
}
ssize_t nbd_receive_reply(QIOChannel *ioc, NBDReply *reply)
@@ -777,7 +764,7 @@ ssize_t nbd_receive_reply(QIOChannel *ioc, NBDReply *reply)
uint32_t magic;
ssize_t ret;
- ret = read_sync(ioc, buf, sizeof(buf));
+ ret = read_sync_eof(ioc, buf, sizeof(buf));
if (ret <= 0) {
return ret;
}
diff --git a/nbd/nbd-internal.h b/nbd/nbd-internal.h
index f43d990..e6bbc7c 100644
--- a/nbd/nbd-internal.h
+++ b/nbd/nbd-internal.h
@@ -94,7 +94,13 @@
#define NBD_ENOSPC 28
#define NBD_ESHUTDOWN 108
-static inline ssize_t read_sync(QIOChannel *ioc, void *buffer, size_t size)
+/* read_sync_eof
+ * Tries to read @size bytes from @ioc. Returns number of bytes actually read.
+ * May return a value >= 0 and < size only on EOF, i.e. when iteratively called
+ * qio_channel_readv() returns 0. So, there are no needs to call read_sync_eof
+ * iteratively.
+ */
+static inline ssize_t read_sync_eof(QIOChannel *ioc, void *buffer, size_t size)
{
struct iovec iov = { .iov_base = buffer, .iov_len = size };
/* Sockets are kept in blocking mode in the negotiation phase. After
@@ -105,12 +111,32 @@ static inline ssize_t read_sync(QIOChannel *ioc, void *buffer, size_t size)
return nbd_wr_syncv(ioc, &iov, 1, size, true);
}
-static inline ssize_t write_sync(QIOChannel *ioc, const void *buffer,
- size_t size)
+/* read_sync
+ * Reads @size bytes from @ioc. Returns 0 on success.
+ */
+static inline int read_sync(QIOChannel *ioc, void *buffer, size_t size)
+{
+ ssize_t ret = read_sync_eof(ioc, buffer, size);
+
+ if (ret >= 0 && ret != size) {
+ ret = -EINVAL;
+ }
+
+ return ret < 0 ? ret : 0;
+}
+
+/* write_sync
+ * Writes @size bytes to @ioc. Returns 0 on success.
+ */
+static inline int write_sync(QIOChannel *ioc, const void *buffer, size_t size)
{
struct iovec iov = { .iov_base = (void *) buffer, .iov_len = size };
- return nbd_wr_syncv(ioc, &iov, 1, size, false);
+ ssize_t ret = nbd_wr_syncv(ioc, &iov, 1, size, false);
+
+ assert(ret < 0 || ret == size);
+
+ return ret < 0 ? ret : 0;
}
struct NBDTLSHandshakeData {
diff --git a/nbd/server.c b/nbd/server.c
index 924a1fe..1e1096c 100644
--- a/nbd/server.c
+++ b/nbd/server.c
@@ -112,7 +112,7 @@ static gboolean nbd_negotiate_continue(QIOChannel *ioc,
return TRUE;
}
-static ssize_t nbd_negotiate_read(QIOChannel *ioc, void *buffer, size_t size)
+static int nbd_negotiate_read(QIOChannel *ioc, void *buffer, size_t size)
{
ssize_t ret;
guint watch;
@@ -130,8 +130,7 @@ static ssize_t nbd_negotiate_read(QIOChannel *ioc, void *buffer, size_t size)
}
-static ssize_t nbd_negotiate_write(QIOChannel *ioc, const void *buffer,
- size_t size)
+static int nbd_negotiate_write(QIOChannel *ioc, const void *buffer, size_t size)
{
ssize_t ret;
guint watch;
@@ -148,24 +147,24 @@ static ssize_t nbd_negotiate_write(QIOChannel *ioc, const void *buffer,
return ret;
}
-static ssize_t nbd_negotiate_drop_sync(QIOChannel *ioc, size_t size)
+static int nbd_negotiate_drop_sync(QIOChannel *ioc, size_t size)
{
- ssize_t ret, dropped = size;
+ ssize_t ret;
uint8_t *buffer = g_malloc(MIN(65536, size));
while (size > 0) {
- ret = nbd_negotiate_read(ioc, buffer, MIN(65536, size));
+ size_t count = MIN(65536, size);
+ ret = nbd_negotiate_read(ioc, buffer, count);
if (ret < 0) {
g_free(buffer);
return ret;
}
- assert(ret <= size);
- size -= ret;
+ size -= count;
}
g_free(buffer);
- return dropped;
+ return 0;
}
/* Basic flow for negotiation
@@ -206,22 +205,22 @@ static int nbd_negotiate_send_rep_len(QIOChannel *ioc, uint32_t type,
type, opt, len);
magic = cpu_to_be64(NBD_REP_MAGIC);
- if (nbd_negotiate_write(ioc, &magic, sizeof(magic)) != sizeof(magic)) {
+ if (nbd_negotiate_write(ioc, &magic, sizeof(magic)) < 0) {
LOG("write failed (rep magic)");
return -EINVAL;
}
opt = cpu_to_be32(opt);
- if (nbd_negotiate_write(ioc, &opt, sizeof(opt)) != sizeof(opt)) {
+ if (nbd_negotiate_write(ioc, &opt, sizeof(opt)) < 0) {
LOG("write failed (rep opt)");
return -EINVAL;
}
type = cpu_to_be32(type);
- if (nbd_negotiate_write(ioc, &type, sizeof(type)) != sizeof(type)) {
+ if (nbd_negotiate_write(ioc, &type, sizeof(type)) < 0) {
LOG("write failed (rep type)");
return -EINVAL;
}
len = cpu_to_be32(len);
- if (nbd_negotiate_write(ioc, &len, sizeof(len)) != sizeof(len)) {
+ if (nbd_negotiate_write(ioc, &len, sizeof(len)) < 0) {
LOG("write failed (rep data length)");
return -EINVAL;
}
@@ -256,7 +255,7 @@ nbd_negotiate_send_rep_err(QIOChannel *ioc, uint32_t type,
if (ret < 0) {
goto out;
}
- if (nbd_negotiate_write(ioc, msg, len) != len) {
+ if (nbd_negotiate_write(ioc, msg, len) < 0) {
LOG("write failed (error message)");
ret = -EIO;
} else {
@@ -287,15 +286,15 @@ static int nbd_negotiate_send_rep_list(QIOChannel *ioc, NBDExport *exp)
}
len = cpu_to_be32(name_len);
- if (nbd_negotiate_write(ioc, &len, sizeof(len)) != sizeof(len)) {
+ if (nbd_negotiate_write(ioc, &len, sizeof(len)) < 0) {
LOG("write failed (name length)");
return -EINVAL;
}
- if (nbd_negotiate_write(ioc, name, name_len) != name_len) {
+ if (nbd_negotiate_write(ioc, name, name_len) < 0) {
LOG("write failed (name buffer)");
return -EINVAL;
}
- if (nbd_negotiate_write(ioc, desc, desc_len) != desc_len) {
+ if (nbd_negotiate_write(ioc, desc, desc_len) < 0) {
LOG("write failed (description buffer)");
return -EINVAL;
}
@@ -309,7 +308,7 @@ static int nbd_negotiate_handle_list(NBDClient *client, uint32_t length)
NBDExport *exp;
if (length) {
- if (nbd_negotiate_drop_sync(client->ioc, length) != length) {
+ if (nbd_negotiate_drop_sync(client->ioc, length) < 0) {
return -EIO;
}
return nbd_negotiate_send_rep_err(client->ioc,
@@ -340,7 +339,7 @@ static int nbd_negotiate_handle_export_name(NBDClient *client, uint32_t length)
LOG("Bad length received");
goto fail;
}
- if (nbd_negotiate_read(client->ioc, name, length) != length) {
+ if (nbd_negotiate_read(client->ioc, name, length) < 0) {
LOG("read failed");
goto fail;
}
@@ -373,7 +372,7 @@ static QIOChannel *nbd_negotiate_handle_starttls(NBDClient *client,
TRACE("Setting up TLS");
ioc = client->ioc;
if (length) {
- if (nbd_negotiate_drop_sync(ioc, length) != length) {
+ if (nbd_negotiate_drop_sync(ioc, length) < 0) {
return NULL;
}
nbd_negotiate_send_rep_err(ioc, NBD_REP_ERR_INVALID, NBD_OPT_STARTTLS,
@@ -437,8 +436,7 @@ static int nbd_negotiate_options(NBDClient *client)
... Rest of request
*/
- if (nbd_negotiate_read(client->ioc, &flags, sizeof(flags)) !=
- sizeof(flags)) {
+ if (nbd_negotiate_read(client->ioc, &flags, sizeof(flags)) < 0) {
LOG("read failed");
return -EIO;
}
@@ -464,8 +462,7 @@ static int nbd_negotiate_options(NBDClient *client)
uint32_t clientflags, length;
uint64_t magic;
- if (nbd_negotiate_read(client->ioc, &magic, sizeof(magic)) !=
- sizeof(magic)) {
+ if (nbd_negotiate_read(client->ioc, &magic, sizeof(magic)) < 0) {
LOG("read failed");
return -EINVAL;
}
@@ -476,14 +473,14 @@ static int nbd_negotiate_options(NBDClient *client)
}
if (nbd_negotiate_read(client->ioc, &clientflags,
- sizeof(clientflags)) != sizeof(clientflags)) {
+ sizeof(clientflags)) < 0)
+ {
LOG("read failed");
return -EINVAL;
}
clientflags = be32_to_cpu(clientflags);
- if (nbd_negotiate_read(client->ioc, &length, sizeof(length)) !=
- sizeof(length)) {
+ if (nbd_negotiate_read(client->ioc, &length, sizeof(length)) < 0) {
LOG("read failed");
return -EINVAL;
}
@@ -513,7 +510,7 @@ static int nbd_negotiate_options(NBDClient *client)
return -EINVAL;
default:
- if (nbd_negotiate_drop_sync(client->ioc, length) != length) {
+ if (nbd_negotiate_drop_sync(client->ioc, length) < 0) {
return -EIO;
}
ret = nbd_negotiate_send_rep_err(client->ioc,
@@ -551,7 +548,7 @@ static int nbd_negotiate_options(NBDClient *client)
return nbd_negotiate_handle_export_name(client, length);
case NBD_OPT_STARTTLS:
- if (nbd_negotiate_drop_sync(client->ioc, length) != length) {
+ if (nbd_negotiate_drop_sync(client->ioc, length) < 0) {
return -EIO;
}
if (client->tlscreds) {
@@ -570,7 +567,7 @@ static int nbd_negotiate_options(NBDClient *client)
}
break;
default:
- if (nbd_negotiate_drop_sync(client->ioc, length) != length) {
+ if (nbd_negotiate_drop_sync(client->ioc, length) < 0) {
return -EIO;
}
ret = nbd_negotiate_send_rep_err(client->ioc,
@@ -659,12 +656,12 @@ static coroutine_fn int nbd_negotiate(NBDClientNewData *data)
TRACE("TLS cannot be enabled with oldstyle protocol");
goto fail;
}
- if (nbd_negotiate_write(client->ioc, buf, sizeof(buf)) != sizeof(buf)) {
+ if (nbd_negotiate_write(client->ioc, buf, sizeof(buf)) < 0) {
LOG("write failed");
goto fail;
}
} else {
- if (nbd_negotiate_write(client->ioc, buf, 18) != 18) {
+ if (nbd_negotiate_write(client->ioc, buf, 18) < 0) {
LOG("write failed");
goto fail;
}
@@ -679,7 +676,7 @@ static coroutine_fn int nbd_negotiate(NBDClientNewData *data)
stq_be_p(buf + 18, client->exp->size);
stw_be_p(buf + 26, client->exp->nbdflags | myflags);
len = client->no_zeroes ? 10 : sizeof(buf) - 18;
- if (nbd_negotiate_write(client->ioc, buf + 18, len) != len) {
+ if (nbd_negotiate_write(client->ioc, buf + 18, len) < 0) {
LOG("write failed");
goto fail;
}
@@ -702,11 +699,6 @@ static ssize_t nbd_receive_request(QIOChannel *ioc, NBDRequest *request)
return ret;
}
- if (ret != sizeof(buf)) {
- LOG("read failed");
- return -EINVAL;
- }
-
/* Request
[ 0 .. 3] magic (NBD_REQUEST_MAGIC)
[ 4 .. 5] flags (NBD_CMD_FLAG_FUA, ...)
@@ -737,7 +729,6 @@ static ssize_t nbd_receive_request(QIOChannel *ioc, NBDRequest *request)
static ssize_t nbd_send_reply(QIOChannel *ioc, NBDReply *reply)
{
uint8_t buf[NBD_REPLY_SIZE];
- ssize_t ret;
reply->error = system_errno_to_nbd_errno(reply->error);
@@ -754,16 +745,7 @@ static ssize_t nbd_send_reply(QIOChannel *ioc, NBDReply *reply)
stl_be_p(buf + 4, reply->error);
stq_be_p(buf + 8, reply->handle);
- ret = write_sync(ioc, buf, sizeof(buf));
- if (ret < 0) {
- return ret;
- }
-
- if (ret != sizeof(buf)) {
- LOG("writing to socket failed");
- return -EINVAL;
- }
- return 0;
+ return write_sync(ioc, buf, sizeof(buf));
}
#define MAX_NBD_REQUESTS 16
@@ -1067,7 +1049,7 @@ static ssize_t nbd_co_send_reply(NBDRequestData *req, NBDReply *reply,
rc = nbd_send_reply(client->ioc, reply);
if (rc >= 0) {
ret = write_sync(client->ioc, req->data, len);
- if (ret != len) {
+ if (ret < 0) {
rc = -EIO;
}
}
@@ -1141,7 +1123,7 @@ static ssize_t nbd_co_receive_request(NBDRequestData *req,
if (request->type == NBD_CMD_WRITE) {
TRACE("Reading %" PRIu32 " byte(s)", request->len);
- if (read_sync(client->ioc, req->data, request->len) != request->len) {
+ if (read_sync(client->ioc, req->data, request->len) < 0) {
LOG("reading from socket failed");
rc = -EIO;
goto out;
--
1.8.3.1
^ permalink raw reply related [flat|nested] 44+ messages in thread
* [Qemu-devel] [PULL 12/33] nbd: add errp parameter to nbd_wr_syncv()
2017-06-01 12:41 [Qemu-devel] [PULL 00/33] Misc patches for 2017-06-01 Paolo Bonzini
` (10 preceding siblings ...)
2017-06-01 12:41 ` [Qemu-devel] [PULL 11/33] nbd: read_sync and friends: return 0 on success Paolo Bonzini
@ 2017-06-01 12:41 ` Paolo Bonzini
2017-06-01 12:41 ` [Qemu-devel] [PULL 13/33] nbd: add errp to read_sync, write_sync and drop_sync Paolo Bonzini
` (22 subsequent siblings)
34 siblings, 0 replies; 44+ messages in thread
From: Paolo Bonzini @ 2017-06-01 12:41 UTC (permalink / raw)
To: qemu-devel; +Cc: Vladimir Sementsov-Ogievskiy
From: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Will be used in following patch to provide actual error message in
some cases.
Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Message-Id: <20170516094533.6160-4-vsementsov@virtuozzo.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
---
block/nbd-client.c | 4 ++--
include/block/nbd.h | 3 ++-
nbd/common.c | 12 +++++-------
nbd/nbd-internal.h | 4 ++--
4 files changed, 11 insertions(+), 12 deletions(-)
diff --git a/block/nbd-client.c b/block/nbd-client.c
index 1e2952f..538d95e 100644
--- a/block/nbd-client.c
+++ b/block/nbd-client.c
@@ -136,7 +136,7 @@ static int nbd_co_send_request(BlockDriverState *bs,
rc = nbd_send_request(s->ioc, request);
if (rc >= 0) {
ret = nbd_wr_syncv(s->ioc, qiov->iov, qiov->niov, request->len,
- false);
+ false, NULL);
if (ret != request->len) {
rc = -EIO;
}
@@ -165,7 +165,7 @@ static void nbd_co_receive_reply(NBDClientSession *s,
} else {
if (qiov && reply->error == 0) {
ret = nbd_wr_syncv(s->ioc, qiov->iov, qiov->niov, request->len,
- true);
+ true, NULL);
if (ret != request->len) {
reply->error = EIO;
}
diff --git a/include/block/nbd.h b/include/block/nbd.h
index 0ed0775..9d385ea 100644
--- a/include/block/nbd.h
+++ b/include/block/nbd.h
@@ -127,7 +127,8 @@ ssize_t nbd_wr_syncv(QIOChannel *ioc,
struct iovec *iov,
size_t niov,
size_t length,
- bool do_read);
+ bool do_read,
+ Error **errp);
int nbd_receive_negotiate(QIOChannel *ioc, const char *name, uint16_t *flags,
QCryptoTLSCreds *tlscreds, const char *hostname,
QIOChannel **outioc,
diff --git a/nbd/common.c b/nbd/common.c
index 4db45b3..bd81637 100644
--- a/nbd/common.c
+++ b/nbd/common.c
@@ -28,10 +28,10 @@ ssize_t nbd_wr_syncv(QIOChannel *ioc,
struct iovec *iov,
size_t niov,
size_t length,
- bool do_read)
+ bool do_read,
+ Error **errp)
{
ssize_t done = 0;
- Error *local_err = NULL;
struct iovec *local_iov = g_new(struct iovec, niov);
struct iovec *local_iov_head = local_iov;
unsigned int nlocal_iov = niov;
@@ -41,19 +41,17 @@ ssize_t nbd_wr_syncv(QIOChannel *ioc,
while (nlocal_iov > 0) {
ssize_t len;
if (do_read) {
- len = qio_channel_readv(ioc, local_iov, nlocal_iov, &local_err);
+ len = qio_channel_readv(ioc, local_iov, nlocal_iov, errp);
} else {
- len = qio_channel_writev(ioc, local_iov, nlocal_iov, &local_err);
+ len = qio_channel_writev(ioc, local_iov, nlocal_iov, errp);
}
if (len == QIO_CHANNEL_ERR_BLOCK) {
+ /* errp should not be set */
assert(qemu_in_coroutine());
qio_channel_yield(ioc, do_read ? G_IO_IN : G_IO_OUT);
continue;
}
if (len < 0) {
- TRACE("I/O error: %s", error_get_pretty(local_err));
- error_free(local_err);
- /* XXX handle Error objects */
done = -EIO;
goto cleanup;
}
diff --git a/nbd/nbd-internal.h b/nbd/nbd-internal.h
index e6bbc7c..1d479fe 100644
--- a/nbd/nbd-internal.h
+++ b/nbd/nbd-internal.h
@@ -108,7 +108,7 @@ static inline ssize_t read_sync_eof(QIOChannel *ioc, void *buffer, size_t size)
* our request/reply. Synchronization is done with recv_coroutine, so
* that this is coroutine-safe.
*/
- return nbd_wr_syncv(ioc, &iov, 1, size, true);
+ return nbd_wr_syncv(ioc, &iov, 1, size, true, NULL);
}
/* read_sync
@@ -132,7 +132,7 @@ static inline int write_sync(QIOChannel *ioc, const void *buffer, size_t size)
{
struct iovec iov = { .iov_base = (void *) buffer, .iov_len = size };
- ssize_t ret = nbd_wr_syncv(ioc, &iov, 1, size, false);
+ ssize_t ret = nbd_wr_syncv(ioc, &iov, 1, size, false, NULL);
assert(ret < 0 || ret == size);
--
1.8.3.1
^ permalink raw reply related [flat|nested] 44+ messages in thread
* [Qemu-devel] [PULL 13/33] nbd: add errp to read_sync, write_sync and drop_sync
2017-06-01 12:41 [Qemu-devel] [PULL 00/33] Misc patches for 2017-06-01 Paolo Bonzini
` (11 preceding siblings ...)
2017-06-01 12:41 ` [Qemu-devel] [PULL 12/33] nbd: add errp parameter to nbd_wr_syncv() Paolo Bonzini
@ 2017-06-01 12:41 ` Paolo Bonzini
2017-06-01 12:41 ` [Qemu-devel] [PULL 14/33] nbd/client.c: use errp instead of LOG Paolo Bonzini
` (21 subsequent siblings)
34 siblings, 0 replies; 44+ messages in thread
From: Paolo Bonzini @ 2017-06-01 12:41 UTC (permalink / raw)
To: qemu-devel; +Cc: Vladimir Sementsov-Ogievskiy
From: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
There a lot of calls of these functions, which already have errp, which
they are filling themselves. On the other hand, nbd_wr_syncv has errp
parameter too, so it would be great to connect them.
Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Message-Id: <20170516094533.6160-5-vsementsov@virtuozzo.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
---
nbd/client.c | 76 +++++++++++++++++++++++++++---------------------------
nbd/nbd-internal.h | 16 +++++++-----
nbd/server.c | 12 ++++-----
3 files changed, 54 insertions(+), 50 deletions(-)
diff --git a/nbd/client.c b/nbd/client.c
index 6b74a62..f102375 100644
--- a/nbd/client.c
+++ b/nbd/client.c
@@ -88,7 +88,7 @@ static QTAILQ_HEAD(, NBDExport) exports = QTAILQ_HEAD_INITIALIZER(exports);
/* Discard length bytes from channel. Return -errno on failure and 0 on
* success*/
-static int drop_sync(QIOChannel *ioc, size_t size)
+static int drop_sync(QIOChannel *ioc, size_t size, Error **errp)
{
ssize_t ret = 0;
char small[1024];
@@ -97,7 +97,7 @@ static int drop_sync(QIOChannel *ioc, size_t size)
buffer = sizeof(small) >= size ? small : g_malloc(MIN(65536, size));
while (size > 0) {
ssize_t count = MIN(65536, size);
- ret = read_sync(ioc, buffer, MIN(65536, size));
+ ret = read_sync(ioc, buffer, MIN(65536, size), errp);
if (ret < 0) {
goto cleanup;
@@ -135,13 +135,13 @@ static int nbd_send_option_request(QIOChannel *ioc, uint32_t opt,
stl_be_p(&req.option, opt);
stl_be_p(&req.length, len);
- if (write_sync(ioc, &req, sizeof(req)) < 0) {
- error_setg(errp, "Failed to send option request header");
+ if (write_sync(ioc, &req, sizeof(req), errp) < 0) {
+ error_prepend(errp, "Failed to send option request header");
return -1;
}
- if (len && write_sync(ioc, (char *) data, len) < 0) {
- error_setg(errp, "Failed to send option request data");
+ if (len && write_sync(ioc, (char *) data, len, errp) < 0) {
+ error_prepend(errp, "Failed to send option request data");
return -1;
}
@@ -169,8 +169,8 @@ static int nbd_receive_option_reply(QIOChannel *ioc, uint32_t opt,
nbd_opt_reply *reply, Error **errp)
{
QEMU_BUILD_BUG_ON(sizeof(*reply) != 20);
- if (read_sync(ioc, reply, sizeof(*reply)) < 0) {
- error_setg(errp, "failed to read option reply");
+ if (read_sync(ioc, reply, sizeof(*reply), errp) < 0) {
+ error_prepend(errp, "failed to read option reply");
nbd_send_opt_abort(ioc);
return -1;
}
@@ -218,8 +218,8 @@ static int nbd_handle_reply_err(QIOChannel *ioc, nbd_opt_reply *reply,
goto cleanup;
}
msg = g_malloc(reply->length + 1);
- if (read_sync(ioc, msg, reply->length) < 0) {
- error_setg(errp, "failed to read option error message");
+ if (read_sync(ioc, msg, reply->length, errp) < 0) {
+ error_prepend(errp, "failed to read option error message");
goto cleanup;
}
msg[reply->length] = '\0';
@@ -320,8 +320,8 @@ static int nbd_receive_list(QIOChannel *ioc, const char *want, bool *match,
nbd_send_opt_abort(ioc);
return -1;
}
- if (read_sync(ioc, &namelen, sizeof(namelen)) < 0) {
- error_setg(errp, "failed to read option name length");
+ if (read_sync(ioc, &namelen, sizeof(namelen), errp) < 0) {
+ error_prepend(errp, "failed to read option name length");
nbd_send_opt_abort(ioc);
return -1;
}
@@ -333,8 +333,8 @@ static int nbd_receive_list(QIOChannel *ioc, const char *want, bool *match,
return -1;
}
if (namelen != strlen(want)) {
- if (drop_sync(ioc, len) < 0) {
- error_setg(errp, "failed to skip export name with wrong length");
+ if (drop_sync(ioc, len, errp) < 0) {
+ error_prepend(errp, "failed to skip export name with wrong length");
nbd_send_opt_abort(ioc);
return -1;
}
@@ -342,15 +342,15 @@ static int nbd_receive_list(QIOChannel *ioc, const char *want, bool *match,
}
assert(namelen < sizeof(name));
- if (read_sync(ioc, name, namelen) < 0) {
- error_setg(errp, "failed to read export name");
+ if (read_sync(ioc, name, namelen, errp) < 0) {
+ error_prepend(errp, "failed to read export name");
nbd_send_opt_abort(ioc);
return -1;
}
name[namelen] = '\0';
len -= namelen;
- if (drop_sync(ioc, len) < 0) {
- error_setg(errp, "failed to read export description");
+ if (drop_sync(ioc, len, errp) < 0) {
+ error_prepend(errp, "failed to read export description");
nbd_send_opt_abort(ioc);
return -1;
}
@@ -476,8 +476,8 @@ int nbd_receive_negotiate(QIOChannel *ioc, const char *name, uint16_t *flags,
goto fail;
}
- if (read_sync(ioc, buf, 8) < 0) {
- error_setg(errp, "Failed to read data");
+ if (read_sync(ioc, buf, 8, errp) < 0) {
+ error_prepend(errp, "Failed to read data");
goto fail;
}
@@ -502,8 +502,8 @@ int nbd_receive_negotiate(QIOChannel *ioc, const char *name, uint16_t *flags,
goto fail;
}
- if (read_sync(ioc, &magic, sizeof(magic)) < 0) {
- error_setg(errp, "Failed to read magic");
+ if (read_sync(ioc, &magic, sizeof(magic), errp) < 0) {
+ error_prepend(errp, "Failed to read magic");
goto fail;
}
magic = be64_to_cpu(magic);
@@ -514,8 +514,8 @@ int nbd_receive_negotiate(QIOChannel *ioc, const char *name, uint16_t *flags,
uint16_t globalflags;
bool fixedNewStyle = false;
- if (read_sync(ioc, &globalflags, sizeof(globalflags)) < 0) {
- error_setg(errp, "Failed to read server flags");
+ if (read_sync(ioc, &globalflags, sizeof(globalflags), errp) < 0) {
+ error_prepend(errp, "Failed to read server flags");
goto fail;
}
globalflags = be16_to_cpu(globalflags);
@@ -532,8 +532,8 @@ int nbd_receive_negotiate(QIOChannel *ioc, const char *name, uint16_t *flags,
}
/* client requested flags */
clientflags = cpu_to_be32(clientflags);
- if (write_sync(ioc, &clientflags, sizeof(clientflags)) < 0) {
- error_setg(errp, "Failed to send clientflags field");
+ if (write_sync(ioc, &clientflags, sizeof(clientflags), errp) < 0) {
+ error_prepend(errp, "Failed to send clientflags field");
goto fail;
}
if (tlscreds) {
@@ -570,14 +570,14 @@ int nbd_receive_negotiate(QIOChannel *ioc, const char *name, uint16_t *flags,
}
/* Read the response */
- if (read_sync(ioc, &s, sizeof(s)) < 0) {
- error_setg(errp, "Failed to read export length");
+ if (read_sync(ioc, &s, sizeof(s), errp) < 0) {
+ error_prepend(errp, "Failed to read export length");
goto fail;
}
*size = be64_to_cpu(s);
- if (read_sync(ioc, flags, sizeof(*flags)) < 0) {
- error_setg(errp, "Failed to read export flags");
+ if (read_sync(ioc, flags, sizeof(*flags), errp) < 0) {
+ error_prepend(errp, "Failed to read export flags");
goto fail;
}
be16_to_cpus(flags);
@@ -593,15 +593,15 @@ int nbd_receive_negotiate(QIOChannel *ioc, const char *name, uint16_t *flags,
goto fail;
}
- if (read_sync(ioc, &s, sizeof(s)) < 0) {
- error_setg(errp, "Failed to read export length");
+ if (read_sync(ioc, &s, sizeof(s), errp) < 0) {
+ error_prepend(errp, "Failed to read export length");
goto fail;
}
*size = be64_to_cpu(s);
TRACE("Size is %" PRIu64, *size);
- if (read_sync(ioc, &oldflags, sizeof(oldflags)) < 0) {
- error_setg(errp, "Failed to read export flags");
+ if (read_sync(ioc, &oldflags, sizeof(oldflags), errp) < 0) {
+ error_prepend(errp, "Failed to read export flags");
goto fail;
}
be32_to_cpus(&oldflags);
@@ -616,8 +616,8 @@ int nbd_receive_negotiate(QIOChannel *ioc, const char *name, uint16_t *flags,
}
TRACE("Size is %" PRIu64 ", export flags %" PRIx16, *size, *flags);
- if (zeroes && drop_sync(ioc, 124) < 0) {
- error_setg(errp, "Failed to read reserved block");
+ if (zeroes && drop_sync(ioc, 124, errp) < 0) {
+ error_prepend(errp, "Failed to read reserved block");
goto fail;
}
rc = 0;
@@ -755,7 +755,7 @@ ssize_t nbd_send_request(QIOChannel *ioc, NBDRequest *request)
stq_be_p(buf + 16, request->from);
stl_be_p(buf + 24, request->len);
- return write_sync(ioc, buf, sizeof(buf));
+ return write_sync(ioc, buf, sizeof(buf), NULL);
}
ssize_t nbd_receive_reply(QIOChannel *ioc, NBDReply *reply)
@@ -764,7 +764,7 @@ ssize_t nbd_receive_reply(QIOChannel *ioc, NBDReply *reply)
uint32_t magic;
ssize_t ret;
- ret = read_sync_eof(ioc, buf, sizeof(buf));
+ ret = read_sync_eof(ioc, buf, sizeof(buf), NULL);
if (ret <= 0) {
return ret;
}
diff --git a/nbd/nbd-internal.h b/nbd/nbd-internal.h
index 1d479fe..d607164 100644
--- a/nbd/nbd-internal.h
+++ b/nbd/nbd-internal.h
@@ -100,7 +100,8 @@
* qio_channel_readv() returns 0. So, there are no needs to call read_sync_eof
* iteratively.
*/
-static inline ssize_t read_sync_eof(QIOChannel *ioc, void *buffer, size_t size)
+static inline ssize_t read_sync_eof(QIOChannel *ioc, void *buffer, size_t size,
+ Error **errp)
{
struct iovec iov = { .iov_base = buffer, .iov_len = size };
/* Sockets are kept in blocking mode in the negotiation phase. After
@@ -108,18 +109,20 @@ static inline ssize_t read_sync_eof(QIOChannel *ioc, void *buffer, size_t size)
* our request/reply. Synchronization is done with recv_coroutine, so
* that this is coroutine-safe.
*/
- return nbd_wr_syncv(ioc, &iov, 1, size, true, NULL);
+ return nbd_wr_syncv(ioc, &iov, 1, size, true, errp);
}
/* read_sync
* Reads @size bytes from @ioc. Returns 0 on success.
*/
-static inline int read_sync(QIOChannel *ioc, void *buffer, size_t size)
+static inline int read_sync(QIOChannel *ioc, void *buffer, size_t size,
+ Error **errp)
{
- ssize_t ret = read_sync_eof(ioc, buffer, size);
+ ssize_t ret = read_sync_eof(ioc, buffer, size, errp);
if (ret >= 0 && ret != size) {
ret = -EINVAL;
+ error_setg(errp, "End of file");
}
return ret < 0 ? ret : 0;
@@ -128,11 +131,12 @@ static inline int read_sync(QIOChannel *ioc, void *buffer, size_t size)
/* write_sync
* Writes @size bytes to @ioc. Returns 0 on success.
*/
-static inline int write_sync(QIOChannel *ioc, const void *buffer, size_t size)
+static inline int write_sync(QIOChannel *ioc, const void *buffer, size_t size,
+ Error **errp)
{
struct iovec iov = { .iov_base = (void *) buffer, .iov_len = size };
- ssize_t ret = nbd_wr_syncv(ioc, &iov, 1, size, false, NULL);
+ ssize_t ret = nbd_wr_syncv(ioc, &iov, 1, size, false, errp);
assert(ret < 0 || ret == size);
diff --git a/nbd/server.c b/nbd/server.c
index 1e1096c..ee59e5d 100644
--- a/nbd/server.c
+++ b/nbd/server.c
@@ -124,7 +124,7 @@ static int nbd_negotiate_read(QIOChannel *ioc, void *buffer, size_t size)
nbd_negotiate_continue,
qemu_coroutine_self(),
NULL);
- ret = read_sync(ioc, buffer, size);
+ ret = read_sync(ioc, buffer, size, NULL);
g_source_remove(watch);
return ret;
@@ -142,7 +142,7 @@ static int nbd_negotiate_write(QIOChannel *ioc, const void *buffer, size_t size)
nbd_negotiate_continue,
qemu_coroutine_self(),
NULL);
- ret = write_sync(ioc, buffer, size);
+ ret = write_sync(ioc, buffer, size, NULL);
g_source_remove(watch);
return ret;
}
@@ -694,7 +694,7 @@ static ssize_t nbd_receive_request(QIOChannel *ioc, NBDRequest *request)
uint32_t magic;
ssize_t ret;
- ret = read_sync(ioc, buf, sizeof(buf));
+ ret = read_sync(ioc, buf, sizeof(buf), NULL);
if (ret < 0) {
return ret;
}
@@ -745,7 +745,7 @@ static ssize_t nbd_send_reply(QIOChannel *ioc, NBDReply *reply)
stl_be_p(buf + 4, reply->error);
stq_be_p(buf + 8, reply->handle);
- return write_sync(ioc, buf, sizeof(buf));
+ return write_sync(ioc, buf, sizeof(buf), NULL);
}
#define MAX_NBD_REQUESTS 16
@@ -1048,7 +1048,7 @@ static ssize_t nbd_co_send_reply(NBDRequestData *req, NBDReply *reply,
qio_channel_set_cork(client->ioc, true);
rc = nbd_send_reply(client->ioc, reply);
if (rc >= 0) {
- ret = write_sync(client->ioc, req->data, len);
+ ret = write_sync(client->ioc, req->data, len, NULL);
if (ret < 0) {
rc = -EIO;
}
@@ -1123,7 +1123,7 @@ static ssize_t nbd_co_receive_request(NBDRequestData *req,
if (request->type == NBD_CMD_WRITE) {
TRACE("Reading %" PRIu32 " byte(s)", request->len);
- if (read_sync(client->ioc, req->data, request->len) < 0) {
+ if (read_sync(client->ioc, req->data, request->len, NULL) < 0) {
LOG("reading from socket failed");
rc = -EIO;
goto out;
--
1.8.3.1
^ permalink raw reply related [flat|nested] 44+ messages in thread
* [Qemu-devel] [PULL 14/33] nbd/client.c: use errp instead of LOG
2017-06-01 12:41 [Qemu-devel] [PULL 00/33] Misc patches for 2017-06-01 Paolo Bonzini
` (12 preceding siblings ...)
2017-06-01 12:41 ` [Qemu-devel] [PULL 13/33] nbd: add errp to read_sync, write_sync and drop_sync Paolo Bonzini
@ 2017-06-01 12:41 ` Paolo Bonzini
2017-06-01 12:41 ` [Qemu-devel] [PULL 15/33] exec: simplify phys_page_find() params Paolo Bonzini
` (20 subsequent siblings)
34 siblings, 0 replies; 44+ messages in thread
From: Paolo Bonzini @ 2017-06-01 12:41 UTC (permalink / raw)
To: qemu-devel; +Cc: Vladimir Sementsov-Ogievskiy
From: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Move to modern errp scheme from just LOGging errors.
Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Message-Id: <20170526110913.89098-1-vsementsov@virtuozzo.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
---
block/nbd-client.c | 7 ++++++-
include/block/nbd.h | 5 +++--
nbd/client.c | 30 +++++++++++++++++-------------
qemu-nbd.c | 3 ++-
tests/qemu-iotests/083.out | 2 ++
5 files changed, 30 insertions(+), 17 deletions(-)
diff --git a/block/nbd-client.c b/block/nbd-client.c
index 538d95e..09d955b 100644
--- a/block/nbd-client.c
+++ b/block/nbd-client.c
@@ -28,6 +28,7 @@
*/
#include "qemu/osdep.h"
+#include "qapi/error.h"
#include "nbd-client.h"
#define HANDLE_TO_INDEX(bs, handle) ((handle) ^ ((uint64_t)(intptr_t)bs))
@@ -70,10 +71,14 @@ static coroutine_fn void nbd_read_reply_entry(void *opaque)
NBDClientSession *s = opaque;
uint64_t i;
int ret;
+ Error *local_err = NULL;
for (;;) {
assert(s->reply.handle == 0);
- ret = nbd_receive_reply(s->ioc, &s->reply);
+ ret = nbd_receive_reply(s->ioc, &s->reply, &local_err);
+ if (ret < 0) {
+ error_report_err(local_err);
+ }
if (ret <= 0) {
break;
}
diff --git a/include/block/nbd.h b/include/block/nbd.h
index 9d385ea..416257a 100644
--- a/include/block/nbd.h
+++ b/include/block/nbd.h
@@ -133,9 +133,10 @@ int nbd_receive_negotiate(QIOChannel *ioc, const char *name, uint16_t *flags,
QCryptoTLSCreds *tlscreds, const char *hostname,
QIOChannel **outioc,
off_t *size, Error **errp);
-int nbd_init(int fd, QIOChannelSocket *sioc, uint16_t flags, off_t size);
+int nbd_init(int fd, QIOChannelSocket *sioc, uint16_t flags, off_t size,
+ Error **errp);
ssize_t nbd_send_request(QIOChannel *ioc, NBDRequest *request);
-ssize_t nbd_receive_reply(QIOChannel *ioc, NBDReply *reply);
+ssize_t nbd_receive_reply(QIOChannel *ioc, NBDReply *reply, Error **errp);
int nbd_client(int fd);
int nbd_disconnect(int fd);
diff --git a/nbd/client.c b/nbd/client.c
index f102375..595d99e 100644
--- a/nbd/client.c
+++ b/nbd/client.c
@@ -627,11 +627,13 @@ fail:
}
#ifdef __linux__
-int nbd_init(int fd, QIOChannelSocket *sioc, uint16_t flags, off_t size)
+int nbd_init(int fd, QIOChannelSocket *sioc, uint16_t flags, off_t size,
+ Error **errp)
{
unsigned long sectors = size / BDRV_SECTOR_SIZE;
if (size / BDRV_SECTOR_SIZE != sectors) {
- LOG("Export size %lld too large for 32-bit kernel", (long long) size);
+ error_setg(errp, "Export size %lld too large for 32-bit kernel",
+ (long long) size);
return -E2BIG;
}
@@ -639,7 +641,7 @@ int nbd_init(int fd, QIOChannelSocket *sioc, uint16_t flags, off_t size)
if (ioctl(fd, NBD_SET_SOCK, (unsigned long) sioc->fd) < 0) {
int serrno = errno;
- LOG("Failed to set NBD socket");
+ error_setg(errp, "Failed to set NBD socket");
return -serrno;
}
@@ -647,7 +649,7 @@ int nbd_init(int fd, QIOChannelSocket *sioc, uint16_t flags, off_t size)
if (ioctl(fd, NBD_SET_BLKSIZE, (unsigned long)BDRV_SECTOR_SIZE) < 0) {
int serrno = errno;
- LOG("Failed setting NBD block size");
+ error_setg(errp, "Failed setting NBD block size");
return -serrno;
}
@@ -659,7 +661,7 @@ int nbd_init(int fd, QIOChannelSocket *sioc, uint16_t flags, off_t size)
if (ioctl(fd, NBD_SET_SIZE_BLOCKS, sectors) < 0) {
int serrno = errno;
- LOG("Failed setting size (in blocks)");
+ error_setg(errp, "Failed setting size (in blocks)");
return -serrno;
}
@@ -670,12 +672,12 @@ int nbd_init(int fd, QIOChannelSocket *sioc, uint16_t flags, off_t size)
if (ioctl(fd, BLKROSET, (unsigned long) &read_only) < 0) {
int serrno = errno;
- LOG("Failed setting read-only attribute");
+ error_setg(errp, "Failed setting read-only attribute");
return -serrno;
}
} else {
int serrno = errno;
- LOG("Failed setting flags");
+ error_setg(errp, "Failed setting flags");
return -serrno;
}
}
@@ -723,8 +725,10 @@ int nbd_disconnect(int fd)
}
#else
-int nbd_init(int fd, QIOChannelSocket *ioc, uint16_t flags, off_t size)
+int nbd_init(int fd, QIOChannelSocket *ioc, uint16_t flags, off_t size,
+ Error **errp)
{
+ error_setg(errp, "nbd_init is only supported on Linux");
return -ENOTSUP;
}
@@ -758,19 +762,19 @@ ssize_t nbd_send_request(QIOChannel *ioc, NBDRequest *request)
return write_sync(ioc, buf, sizeof(buf), NULL);
}
-ssize_t nbd_receive_reply(QIOChannel *ioc, NBDReply *reply)
+ssize_t nbd_receive_reply(QIOChannel *ioc, NBDReply *reply, Error **errp)
{
uint8_t buf[NBD_REPLY_SIZE];
uint32_t magic;
ssize_t ret;
- ret = read_sync_eof(ioc, buf, sizeof(buf), NULL);
+ ret = read_sync_eof(ioc, buf, sizeof(buf), errp);
if (ret <= 0) {
return ret;
}
if (ret != sizeof(buf)) {
- LOG("read failed");
+ error_setg(errp, "read failed");
return -EINVAL;
}
@@ -788,7 +792,7 @@ ssize_t nbd_receive_reply(QIOChannel *ioc, NBDReply *reply)
if (reply->error == ESHUTDOWN) {
/* This works even on mingw which lacks a native ESHUTDOWN */
- LOG("server shutting down");
+ error_setg(errp, "server shutting down");
return -EINVAL;
}
TRACE("Got reply: { magic = 0x%" PRIx32 ", .error = % " PRId32
@@ -796,7 +800,7 @@ ssize_t nbd_receive_reply(QIOChannel *ioc, NBDReply *reply)
magic, reply->error, reply->handle);
if (magic != NBD_REPLY_MAGIC) {
- LOG("invalid magic (got 0x%" PRIx32 ")", magic);
+ error_setg(errp, "invalid magic (got 0x%" PRIx32 ")", magic);
return -EINVAL;
}
return sizeof(buf);
diff --git a/qemu-nbd.c b/qemu-nbd.c
index b7ab86b..f60842f 100644
--- a/qemu-nbd.c
+++ b/qemu-nbd.c
@@ -288,8 +288,9 @@ static void *nbd_client_thread(void *arg)
goto out_socket;
}
- ret = nbd_init(fd, sioc, nbdflags, size);
+ ret = nbd_init(fd, sioc, nbdflags, size, &local_error);
if (ret < 0) {
+ error_report_err(local_error);
goto out_fd;
}
diff --git a/tests/qemu-iotests/083.out b/tests/qemu-iotests/083.out
index 0c13888..a24c6bf 100644
--- a/tests/qemu-iotests/083.out
+++ b/tests/qemu-iotests/083.out
@@ -69,10 +69,12 @@ read failed: Input/output error
=== Check disconnect 4 reply ===
+read failed
read failed: Input/output error
=== Check disconnect 8 reply ===
+read failed
read failed: Input/output error
=== Check disconnect before data ===
--
1.8.3.1
^ permalink raw reply related [flat|nested] 44+ messages in thread
* [Qemu-devel] [PULL 15/33] exec: simplify phys_page_find() params
2017-06-01 12:41 [Qemu-devel] [PULL 00/33] Misc patches for 2017-06-01 Paolo Bonzini
` (13 preceding siblings ...)
2017-06-01 12:41 ` [Qemu-devel] [PULL 14/33] nbd/client.c: use errp instead of LOG Paolo Bonzini
@ 2017-06-01 12:41 ` Paolo Bonzini
2017-06-01 12:41 ` [Qemu-devel] [PULL 16/33] virtio-scsi: Unset hotplug handler when unrealize Paolo Bonzini
` (19 subsequent siblings)
34 siblings, 0 replies; 44+ messages in thread
From: Paolo Bonzini @ 2017-06-01 12:41 UTC (permalink / raw)
To: qemu-devel; +Cc: Peter Xu
From: Peter Xu <peterx@redhat.com>
It really only plays with the dispatchers, so the parameter list does
not need that complexity. This helps for readability at least.
Signed-off-by: Peter Xu <peterx@redhat.com>
Message-Id: <1494838260-30439-2-git-send-email-peterx@redhat.com>
Reviewed-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
---
exec.c | 13 ++++++-------
1 file changed, 6 insertions(+), 7 deletions(-)
diff --git a/exec.c b/exec.c
index 96e3ac9..29633cd 100644
--- a/exec.c
+++ b/exec.c
@@ -373,10 +373,11 @@ static inline bool section_covers_addr(const MemoryRegionSection *section,
int128_getlo(section->size), addr);
}
-static MemoryRegionSection *phys_page_find(PhysPageEntry lp, hwaddr addr,
- Node *nodes, MemoryRegionSection *sections)
+static MemoryRegionSection *phys_page_find(AddressSpaceDispatch *d, hwaddr addr)
{
- PhysPageEntry *p;
+ PhysPageEntry lp = d->phys_map, *p;
+ Node *nodes = d->map.nodes;
+ MemoryRegionSection *sections = d->map.sections;
hwaddr index = addr >> TARGET_PAGE_BITS;
int i;
@@ -414,8 +415,7 @@ static MemoryRegionSection *address_space_lookup_region(AddressSpaceDispatch *d,
section_covers_addr(section, addr)) {
update = false;
} else {
- section = phys_page_find(d->phys_map, addr, d->map.nodes,
- d->map.sections);
+ section = phys_page_find(d, addr);
update = true;
}
if (resolve_subpage && section->mr->subpage) {
@@ -1283,8 +1283,7 @@ static void register_subpage(AddressSpaceDispatch *d, MemoryRegionSection *secti
subpage_t *subpage;
hwaddr base = section->offset_within_address_space
& TARGET_PAGE_MASK;
- MemoryRegionSection *existing = phys_page_find(d->phys_map, base,
- d->map.nodes, d->map.sections);
+ MemoryRegionSection *existing = phys_page_find(d, base);
MemoryRegionSection subsection = {
.offset_within_address_space = base,
.size = int128_make64(TARGET_PAGE_SIZE),
--
1.8.3.1
^ permalink raw reply related [flat|nested] 44+ messages in thread
* [Qemu-devel] [PULL 16/33] virtio-scsi: Unset hotplug handler when unrealize
2017-06-01 12:41 [Qemu-devel] [PULL 00/33] Misc patches for 2017-06-01 Paolo Bonzini
` (14 preceding siblings ...)
2017-06-01 12:41 ` [Qemu-devel] [PULL 15/33] exec: simplify phys_page_find() params Paolo Bonzini
@ 2017-06-01 12:41 ` Paolo Bonzini
2017-06-01 12:41 ` [Qemu-devel] [PULL 17/33] vhost-user-scsi: Introduce vhost-user-scsi host device Paolo Bonzini
` (18 subsequent siblings)
34 siblings, 0 replies; 44+ messages in thread
From: Paolo Bonzini @ 2017-06-01 12:41 UTC (permalink / raw)
To: qemu-devel; +Cc: Fam Zheng, qemu-stable
From: Fam Zheng <famz@redhat.com>
This matches the qbus_set_hotplug_handler in realize, and it releases
the final reference to the embedded VirtIODevice so that it is
properly finalized.
A use-after-free is fixed with this patch, indirectly:
virtio_device_instance_finalize wasn't called at hot-unplug, and the
vdev->listener would be a dangling pointer in the global and the per
address space listener list. See also RHBZ 1449031.
Cc: qemu-stable@nongnu.org
Signed-off-by: Fam Zheng <famz@redhat.com>
Message-Id: <20170518102808.30046-1-famz@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
---
hw/scsi/virtio-scsi.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/hw/scsi/virtio-scsi.c b/hw/scsi/virtio-scsi.c
index 46a3e3f..f46f06d 100644
--- a/hw/scsi/virtio-scsi.c
+++ b/hw/scsi/virtio-scsi.c
@@ -918,6 +918,9 @@ void virtio_scsi_common_unrealize(DeviceState *dev, Error **errp)
static void virtio_scsi_device_unrealize(DeviceState *dev, Error **errp)
{
+ VirtIOSCSI *s = VIRTIO_SCSI(dev);
+
+ qbus_set_hotplug_handler(BUS(&s->bus), NULL, &error_abort);
virtio_scsi_common_unrealize(dev, errp);
}
--
1.8.3.1
^ permalink raw reply related [flat|nested] 44+ messages in thread
* [Qemu-devel] [PULL 17/33] vhost-user-scsi: Introduce vhost-user-scsi host device
2017-06-01 12:41 [Qemu-devel] [PULL 00/33] Misc patches for 2017-06-01 Paolo Bonzini
` (15 preceding siblings ...)
2017-06-01 12:41 ` [Qemu-devel] [PULL 16/33] virtio-scsi: Unset hotplug handler when unrealize Paolo Bonzini
@ 2017-06-01 12:41 ` Paolo Bonzini
2017-06-05 16:28 ` Eric Blake
2017-06-01 12:41 ` [Qemu-devel] [PULL 18/33] vhost-user-scsi: Introduce a vhost-user-scsi sample application Paolo Bonzini
` (17 subsequent siblings)
34 siblings, 1 reply; 44+ messages in thread
From: Paolo Bonzini @ 2017-06-01 12:41 UTC (permalink / raw)
To: qemu-devel; +Cc: Felipe Franciosi
From: Felipe Franciosi <felipe@nutanix.com>
This commit introduces a vhost-user device for SCSI. This is based
on the existing vhost-scsi implementation, but done over vhost-user
instead. It also uses a chardev to connect to the backend. Unlike
vhost-scsi (today), VMs using vhost-user-scsi can be live migrated.
To use it, start Qemu with a command line equivalent to:
qemu-system-x86_64 \
-chardev socket,id=vus0,path=/tmp/vus.sock \
-device vhost-user-scsi-pci,chardev=vus0,bus=pci.0,addr=...
A separate commit presents a sample application linked with libiscsi to
provide a backend for vhost-user-scsi.
Signed-off-by: Felipe Franciosi <felipe@nutanix.com>
Message-Id: <1488479153-21203-4-git-send-email-felipe@nutanix.com>
---
.gitignore | 1 +
default-configs/pci.mak | 1 +
default-configs/s390x-softmmu.mak | 1 +
hw/scsi/Makefile.objs | 1 +
hw/scsi/vhost-scsi-common.c | 1 -
hw/scsi/vhost-user-scsi.c | 211 ++++++++++++++++++++++++++++++++++++
hw/virtio/virtio-pci.c | 54 +++++++++
hw/virtio/virtio-pci.h | 11 ++
include/hw/virtio/vhost-user-scsi.h | 35 ++++++
include/hw/virtio/virtio-scsi.h | 2 +
10 files changed, 317 insertions(+), 1 deletion(-)
create mode 100644 hw/scsi/vhost-user-scsi.c
create mode 100644 include/hw/virtio/vhost-user-scsi.h
diff --git a/.gitignore b/.gitignore
index 55a001e..fa96bd2 100644
--- a/.gitignore
+++ b/.gitignore
@@ -50,6 +50,7 @@
/qemu-version.h.tmp
/module_block.h
/vscclient
+/vhost-user-scsi
/fsdev/virtfs-proxy-helper
*.[1-9]
*.a
diff --git a/default-configs/pci.mak b/default-configs/pci.mak
index 60dc651..1c523b8 100644
--- a/default-configs/pci.mak
+++ b/default-configs/pci.mak
@@ -42,3 +42,4 @@ CONFIG_VGA=y
CONFIG_VGA_PCI=y
CONFIG_IVSHMEM=$(CONFIG_EVENTFD)
CONFIG_ROCKER=y
+CONFIG_VHOST_USER_SCSI=$(CONFIG_LINUX)
diff --git a/default-configs/s390x-softmmu.mak b/default-configs/s390x-softmmu.mak
index 9615a48..1b8aaa4 100644
--- a/default-configs/s390x-softmmu.mak
+++ b/default-configs/s390x-softmmu.mak
@@ -1,5 +1,6 @@
CONFIG_PCI=y
CONFIG_VIRTIO_PCI=y
+CONFIG_VHOST_USER_SCSI=$(CONFIG_LINUX)
CONFIG_VIRTIO=y
CONFIG_SCLPCONSOLE=y
CONFIG_TERMINAL3270=y
diff --git a/hw/scsi/Makefile.objs b/hw/scsi/Makefile.objs
index 54d8754..b188f72 100644
--- a/hw/scsi/Makefile.objs
+++ b/hw/scsi/Makefile.objs
@@ -11,4 +11,5 @@ obj-$(CONFIG_PSERIES) += spapr_vscsi.o
ifeq ($(CONFIG_VIRTIO),y)
obj-y += virtio-scsi.o virtio-scsi-dataplane.o
obj-$(CONFIG_VHOST_SCSI) += vhost-scsi-common.o vhost-scsi.o
+obj-$(CONFIG_VHOST_USER_SCSI) += vhost-scsi-common.o vhost-user-scsi.o
endif
diff --git a/hw/scsi/vhost-scsi-common.c b/hw/scsi/vhost-scsi-common.c
index e41c031..d434b3e 100644
--- a/hw/scsi/vhost-scsi-common.c
+++ b/hw/scsi/vhost-scsi-common.c
@@ -16,7 +16,6 @@
*/
#include "qemu/osdep.h"
-#include <linux/vhost.h>
#include "qapi/error.h"
#include "qemu/error-report.h"
#include "migration/migration.h"
diff --git a/hw/scsi/vhost-user-scsi.c b/hw/scsi/vhost-user-scsi.c
new file mode 100644
index 0000000..d27b2ad
--- /dev/null
+++ b/hw/scsi/vhost-user-scsi.c
@@ -0,0 +1,211 @@
+/*
+ * vhost-user-scsi host device
+ *
+ * Copyright (c) 2016 Nutanix Inc. All rights reserved.
+ *
+ * Author:
+ * Felipe Franciosi <felipe@nutanix.com>
+ *
+ * This work is largely based on the "vhost-scsi" implementation by:
+ * Stefan Hajnoczi <stefanha@linux.vnet.ibm.com>
+ * Nicholas Bellinger <nab@risingtidesystems.com>
+ *
+ * This work is licensed under the terms of the GNU LGPL, version 2 or later.
+ * See the COPYING.LIB file in the top-level directory.
+ *
+ */
+
+#include "qemu/osdep.h"
+#include "migration/vmstate.h"
+#include "qapi/error.h"
+#include "qemu/error-report.h"
+#include "qemu/typedefs.h"
+#include "qom/object.h"
+#include "hw/fw-path-provider.h"
+#include "hw/qdev-core.h"
+#include "hw/virtio/vhost.h"
+#include "hw/virtio/vhost-backend.h"
+#include "hw/virtio/vhost-user-scsi.h"
+#include "hw/virtio/virtio.h"
+#include "hw/virtio/virtio-access.h"
+#include "sysemu/char.h"
+
+/* Features supported by the host application */
+static const int user_feature_bits[] = {
+ VIRTIO_F_NOTIFY_ON_EMPTY,
+ VIRTIO_RING_F_INDIRECT_DESC,
+ VIRTIO_RING_F_EVENT_IDX,
+ VIRTIO_SCSI_F_HOTPLUG,
+ VHOST_INVALID_FEATURE_BIT
+};
+
+static void vhost_user_scsi_set_status(VirtIODevice *vdev, uint8_t status)
+{
+ VHostUserSCSI *s = (VHostUserSCSI *)vdev;
+ VHostSCSICommon *vsc = VHOST_SCSI_COMMON(s);
+ bool start = (status & VIRTIO_CONFIG_S_DRIVER_OK) && vdev->vm_running;
+
+ if (vsc->dev.started == start) {
+ return;
+ }
+
+ if (start) {
+ int ret;
+
+ ret = vhost_scsi_common_start(vsc);
+ if (ret < 0) {
+ error_report("unable to start vhost-user-scsi: %s", strerror(-ret));
+ exit(1);
+ }
+ } else {
+ vhost_scsi_common_stop(vsc);
+ }
+}
+
+static void vhost_dummy_handle_output(VirtIODevice *vdev, VirtQueue *vq)
+{
+}
+
+static void vhost_user_scsi_save(QEMUFile *f, void *opaque)
+{
+ VirtIODevice *vdev = VIRTIO_DEVICE(opaque);
+ virtio_save(vdev, f);
+}
+
+static int vhost_user_scsi_load(QEMUFile *f, void *opaque, int version_id)
+{
+ VirtIODevice *vdev = VIRTIO_DEVICE(opaque);
+ return virtio_load(vdev, f, version_id);
+}
+
+static void vhost_user_scsi_realize(DeviceState *dev, Error **errp)
+{
+ VirtIOSCSICommon *vs = VIRTIO_SCSI_COMMON(dev);
+ VHostUserSCSI *s = VHOST_USER_SCSI(dev);
+ VHostSCSICommon *vsc = VHOST_SCSI_COMMON(s);
+ static int vhost_user_scsi_id;
+ Error *err = NULL;
+ int ret;
+
+ if (!vs->conf.chardev.chr) {
+ error_setg(errp, "vhost-user-scsi: missing chardev");
+ return;
+ }
+
+ virtio_scsi_common_realize(dev, vhost_dummy_handle_output,
+ vhost_dummy_handle_output,
+ vhost_dummy_handle_output, &err);
+ if (err != NULL) {
+ error_propagate(errp, err);
+ return;
+ }
+
+ vsc->dev.nvqs = 2 + vs->conf.num_queues;
+ vsc->dev.vqs = g_new(struct vhost_virtqueue, vsc->dev.nvqs);
+ vsc->dev.vq_index = 0;
+ vsc->dev.backend_features = 0;
+
+ ret = vhost_dev_init(&vsc->dev, (void *)&vs->conf.chardev,
+ VHOST_BACKEND_TYPE_USER, 0);
+ if (ret < 0) {
+ error_setg(errp, "vhost-user-scsi: vhost initialization failed: %s",
+ strerror(-ret));
+ return;
+ }
+
+ /* Channel and lun both are 0 for bootable vhost-user-scsi disk */
+ vsc->channel = 0;
+ vsc->lun = 0;
+ vsc->target = vs->conf.boot_tpgt;
+
+ register_savevm(dev, "vhost-user-scsi", vhost_user_scsi_id++, 1,
+ vhost_user_scsi_save, vhost_user_scsi_load, s);
+}
+
+static void vhost_user_scsi_unrealize(DeviceState *dev, Error **errp)
+{
+ VirtIODevice *vdev = VIRTIO_DEVICE(dev);
+ VHostUserSCSI *s = VHOST_USER_SCSI(dev);
+ VHostSCSICommon *vsc = VHOST_SCSI_COMMON(s);
+
+ /* This will stop the vhost backend. */
+ vhost_user_scsi_set_status(vdev, 0);
+
+ vhost_dev_cleanup(&vsc->dev);
+ g_free(vsc->dev.vqs);
+
+ virtio_scsi_common_unrealize(dev, errp);
+}
+
+static uint64_t vhost_user_scsi_get_features(VirtIODevice *vdev,
+ uint64_t features, Error **errp)
+{
+ VHostUserSCSI *s = VHOST_USER_SCSI(vdev);
+
+ /* Turn on predefined features supported by this device */
+ features |= s->host_features;
+
+ return vhost_scsi_common_get_features(vdev, features, errp);
+}
+
+static Property vhost_user_scsi_properties[] = {
+ DEFINE_PROP_CHR("chardev", VirtIOSCSICommon, conf.chardev),
+ DEFINE_PROP_UINT32("boot_tpgt", VirtIOSCSICommon, conf.boot_tpgt, 0),
+ DEFINE_PROP_UINT32("num_queues", VirtIOSCSICommon, conf.num_queues, 1),
+ DEFINE_PROP_UINT32("max_sectors", VirtIOSCSICommon, conf.max_sectors,
+ 0xFFFF),
+ DEFINE_PROP_UINT32("cmd_per_lun", VirtIOSCSICommon, conf.cmd_per_lun, 128),
+ DEFINE_PROP_BIT64("hotplug", VHostUserSCSI, host_features,
+ VIRTIO_SCSI_F_HOTPLUG,
+ true),
+ DEFINE_PROP_BIT64("param_change", VHostUserSCSI, host_features,
+ VIRTIO_SCSI_F_CHANGE,
+ true),
+ DEFINE_PROP_END_OF_LIST(),
+};
+
+static void vhost_user_scsi_class_init(ObjectClass *klass, void *data)
+{
+ DeviceClass *dc = DEVICE_CLASS(klass);
+ VirtioDeviceClass *vdc = VIRTIO_DEVICE_CLASS(klass);
+ FWPathProviderClass *fwc = FW_PATH_PROVIDER_CLASS(klass);
+
+ dc->props = vhost_user_scsi_properties;
+ set_bit(DEVICE_CATEGORY_STORAGE, dc->categories);
+ vdc->realize = vhost_user_scsi_realize;
+ vdc->unrealize = vhost_user_scsi_unrealize;
+ vdc->get_features = vhost_user_scsi_get_features;
+ vdc->set_config = vhost_scsi_common_set_config;
+ vdc->set_status = vhost_user_scsi_set_status;
+ fwc->get_dev_path = vhost_scsi_common_get_fw_dev_path;
+}
+
+static void vhost_user_scsi_instance_init(Object *obj)
+{
+ VHostSCSICommon *vsc = VHOST_SCSI_COMMON(obj);
+
+ vsc->feature_bits = user_feature_bits;
+
+ /* Add the bootindex property for this object */
+ device_add_bootindex_property(obj, &vsc->bootindex, "bootindex", NULL,
+ DEVICE(vsc), NULL);
+}
+
+static const TypeInfo vhost_user_scsi_info = {
+ .name = TYPE_VHOST_USER_SCSI,
+ .parent = TYPE_VHOST_SCSI_COMMON,
+ .instance_size = sizeof(VHostUserSCSI),
+ .class_init = vhost_user_scsi_class_init,
+ .instance_init = vhost_user_scsi_instance_init,
+ .interfaces = (InterfaceInfo[]) {
+ { TYPE_FW_PATH_PROVIDER },
+ { }
+ },
+};
+
+static void virtio_register_types(void)
+{
+ type_register_static(&vhost_user_scsi_info);
+}
+
+type_init(virtio_register_types)
diff --git a/hw/virtio/virtio-pci.c b/hw/virtio/virtio-pci.c
index f9b7244..d52faeb 100644
--- a/hw/virtio/virtio-pci.c
+++ b/hw/virtio/virtio-pci.c
@@ -2135,6 +2135,59 @@ static const TypeInfo vhost_scsi_pci_info = {
};
#endif
+/* vhost-user-scsi-pci */
+static Property vhost_user_scsi_pci_properties[] = {
+ DEFINE_PROP_UINT32("vectors", VirtIOPCIProxy, nvectors,
+ DEV_NVECTORS_UNSPECIFIED),
+ DEFINE_PROP_END_OF_LIST(),
+};
+
+static void vhost_user_scsi_pci_realize(VirtIOPCIProxy *vpci_dev, Error **errp)
+{
+ VHostUserSCSIPCI *dev = VHOST_USER_SCSI_PCI(vpci_dev);
+ DeviceState *vdev = DEVICE(&dev->vdev);
+ VirtIOSCSICommon *vs = VIRTIO_SCSI_COMMON(vdev);
+
+ if (vpci_dev->nvectors == DEV_NVECTORS_UNSPECIFIED) {
+ vpci_dev->nvectors = vs->conf.num_queues + 3;
+ }
+
+ qdev_set_parent_bus(vdev, BUS(&vpci_dev->bus));
+ object_property_set_bool(OBJECT(vdev), true, "realized", errp);
+}
+
+static void vhost_user_scsi_pci_class_init(ObjectClass *klass, void *data)
+{
+ DeviceClass *dc = DEVICE_CLASS(klass);
+ VirtioPCIClass *k = VIRTIO_PCI_CLASS(klass);
+ PCIDeviceClass *pcidev_k = PCI_DEVICE_CLASS(klass);
+ k->realize = vhost_user_scsi_pci_realize;
+ set_bit(DEVICE_CATEGORY_STORAGE, dc->categories);
+ dc->props = vhost_user_scsi_pci_properties;
+ pcidev_k->vendor_id = PCI_VENDOR_ID_REDHAT_QUMRANET;
+ pcidev_k->device_id = PCI_DEVICE_ID_VIRTIO_SCSI;
+ pcidev_k->revision = 0x00;
+ pcidev_k->class_id = PCI_CLASS_STORAGE_SCSI;
+}
+
+static void vhost_user_scsi_pci_instance_init(Object *obj)
+{
+ VHostUserSCSIPCI *dev = VHOST_USER_SCSI_PCI(obj);
+
+ virtio_instance_init_common(obj, &dev->vdev, sizeof(dev->vdev),
+ TYPE_VHOST_USER_SCSI);
+ object_property_add_alias(obj, "bootindex", OBJECT(&dev->vdev),
+ "bootindex", &error_abort);
+}
+
+static const TypeInfo vhost_user_scsi_pci_info = {
+ .name = TYPE_VHOST_USER_SCSI_PCI,
+ .parent = TYPE_VIRTIO_PCI,
+ .instance_size = sizeof(VHostUserSCSIPCI),
+ .instance_init = vhost_user_scsi_pci_instance_init,
+ .class_init = vhost_user_scsi_pci_class_init,
+};
+
/* vhost-vsock-pci */
#ifdef CONFIG_VHOST_VSOCK
@@ -2612,6 +2665,7 @@ static void virtio_pci_register_types(void)
#ifdef CONFIG_VHOST_SCSI
type_register_static(&vhost_scsi_pci_info);
#endif
+ type_register_static(&vhost_user_scsi_pci_info);
#ifdef CONFIG_VHOST_VSOCK
type_register_static(&vhost_vsock_pci_info);
#endif
diff --git a/hw/virtio/virtio-pci.h b/hw/virtio/virtio-pci.h
index b095dfc..69f5959 100644
--- a/hw/virtio/virtio-pci.h
+++ b/hw/virtio/virtio-pci.h
@@ -26,6 +26,7 @@
#include "hw/virtio/virtio-input.h"
#include "hw/virtio/virtio-gpu.h"
#include "hw/virtio/virtio-crypto.h"
+#include "hw/virtio/vhost-user-scsi.h"
#ifdef CONFIG_VIRTFS
#include "hw/9pfs/virtio-9p.h"
@@ -44,6 +45,7 @@ typedef struct VirtIOBalloonPCI VirtIOBalloonPCI;
typedef struct VirtIOSerialPCI VirtIOSerialPCI;
typedef struct VirtIONetPCI VirtIONetPCI;
typedef struct VHostSCSIPCI VHostSCSIPCI;
+typedef struct VHostUserSCSIPCI VHostUserSCSIPCI;
typedef struct VirtIORngPCI VirtIORngPCI;
typedef struct VirtIOInputPCI VirtIOInputPCI;
typedef struct VirtIOInputHIDPCI VirtIOInputHIDPCI;
@@ -230,6 +232,15 @@ struct VHostSCSIPCI {
};
#endif
+#define TYPE_VHOST_USER_SCSI_PCI "vhost-user-scsi-pci"
+#define VHOST_USER_SCSI_PCI(obj) \
+ OBJECT_CHECK(VHostUserSCSIPCI, (obj), TYPE_VHOST_USER_SCSI_PCI)
+
+struct VHostUserSCSIPCI {
+ VirtIOPCIProxy parent_obj;
+ VHostUserSCSI vdev;
+};
+
/*
* virtio-blk-pci: This extends VirtioPCIProxy.
*/
diff --git a/include/hw/virtio/vhost-user-scsi.h b/include/hw/virtio/vhost-user-scsi.h
new file mode 100644
index 0000000..01861f7
--- /dev/null
+++ b/include/hw/virtio/vhost-user-scsi.h
@@ -0,0 +1,35 @@
+/*
+ * vhost-user-scsi host device
+ *
+ * Copyright (c) 2016 Nutanix Inc. All rights reserved.
+ *
+ * Author:
+ * Felipe Franciosi <felipe@nutanix.com>
+ *
+ * This file is largely based on "vhost-scsi.h" by:
+ * Stefan Hajnoczi <stefanha@linux.vnet.ibm.com>
+ *
+ * This work is licensed under the terms of the GNU LGPL, version 2 or later.
+ * See the COPYING.LIB file in the top-level directory.
+ *
+ */
+
+#ifndef VHOST_USER_SCSI_H
+#define VHOST_USER_SCSI_H
+
+#include "qemu-common.h"
+#include "hw/qdev.h"
+#include "hw/virtio/virtio-scsi.h"
+#include "hw/virtio/vhost.h"
+#include "hw/virtio/vhost-scsi-common.h"
+
+#define TYPE_VHOST_USER_SCSI "vhost-user-scsi"
+#define VHOST_USER_SCSI(obj) \
+ OBJECT_CHECK(VHostUserSCSI, (obj), TYPE_VHOST_USER_SCSI)
+
+typedef struct VHostUserSCSI {
+ VHostSCSICommon parent_obj;
+ uint64_t host_features;
+} VHostUserSCSI;
+
+#endif /* VHOST_USER_SCSI_H */
diff --git a/include/hw/virtio/virtio-scsi.h b/include/hw/virtio/virtio-scsi.h
index eac2013..ca77a42 100644
--- a/include/hw/virtio/virtio-scsi.h
+++ b/include/hw/virtio/virtio-scsi.h
@@ -21,6 +21,7 @@
#include "hw/virtio/virtio.h"
#include "hw/pci/pci.h"
#include "hw/scsi/scsi.h"
+#include "sysemu/char.h"
#include "sysemu/iothread.h"
#define TYPE_VIRTIO_SCSI_COMMON "virtio-scsi-common"
@@ -53,6 +54,7 @@ struct VirtIOSCSIConf {
char *vhostfd;
char *wwpn;
#endif
+ CharBackend chardev;
uint32_t boot_tpgt;
IOThread *iothread;
};
--
1.8.3.1
^ permalink raw reply related [flat|nested] 44+ messages in thread
* [Qemu-devel] [PULL 18/33] vhost-user-scsi: Introduce a vhost-user-scsi sample application
2017-06-01 12:41 [Qemu-devel] [PULL 00/33] Misc patches for 2017-06-01 Paolo Bonzini
` (16 preceding siblings ...)
2017-06-01 12:41 ` [Qemu-devel] [PULL 17/33] vhost-user-scsi: Introduce vhost-user-scsi host device Paolo Bonzini
@ 2017-06-01 12:41 ` Paolo Bonzini
2017-06-01 12:41 ` [Qemu-devel] [PULL 19/33] target/i386: enable A20 automatically in system management mode Paolo Bonzini
` (16 subsequent siblings)
34 siblings, 0 replies; 44+ messages in thread
From: Paolo Bonzini @ 2017-06-01 12:41 UTC (permalink / raw)
To: qemu-devel; +Cc: Felipe Franciosi
From: Felipe Franciosi <felipe@nutanix.com>
This commit introduces a vhost-user-scsi backend sample application. It
must be linked with libiscsi and libvhost-user.
To use it, compile with:
$ make vhost-user-scsi
And run as follows:
$ ./vhost-user-scsi -u vus.sock -i iscsi://uri_to_target/
$ qemu-system-x86_64 --enable-kvm -m 512 \
-object memory-backend-file,id=mem,size=512m,share=on,mem-path=guestmem \
-numa node,memdev=mem \
-chardev socket,id=vhost-user-scsi,path=vus.sock \
-device vhost-user-scsi-pci,chardev=vhost-user-scsi \
The application is currently limited at one LUN only and it processes
requests synchronously (therefore only achieving QD1). The purpose of
the code is to show how a backend can be implemented and to test the
vhost-user-scsi Qemu implementation.
If a different instance of this vhost-user-scsi application is executed
at a remote host, a VM can be live migrated to such a host.
Signed-off-by: Felipe Franciosi <felipe@nutanix.com>
Message-Id: <1488479153-21203-5-git-send-email-felipe@nutanix.com>
---
Makefile | 3 +
Makefile.objs | 4 +
contrib/libvhost-user/libvhost-user.h | 11 +-
contrib/vhost-user-scsi/Makefile.objs | 1 +
contrib/vhost-user-scsi/vhost-user-scsi.c | 886 ++++++++++++++++++++++++++++++
5 files changed, 900 insertions(+), 5 deletions(-)
create mode 100644 contrib/vhost-user-scsi/Makefile.objs
create mode 100644 contrib/vhost-user-scsi/vhost-user-scsi.c
diff --git a/Makefile b/Makefile
index c830d7a..e14988d 100644
--- a/Makefile
+++ b/Makefile
@@ -269,6 +269,7 @@ dummy := $(call unnest-vars,, \
ivshmem-client-obj-y \
ivshmem-server-obj-y \
libvhost-user-obj-y \
+ vhost-user-scsi-obj-y \
qga-vss-dll-obj-y \
block-obj-y \
block-obj-m \
@@ -473,6 +474,8 @@ ivshmem-client$(EXESUF): $(ivshmem-client-obj-y) $(COMMON_LDADDS)
$(call LINK, $^)
ivshmem-server$(EXESUF): $(ivshmem-server-obj-y) $(COMMON_LDADDS)
$(call LINK, $^)
+vhost-user-scsi$(EXESUF): $(vhost-user-scsi-obj-y)
+ $(call LINK, $^)
module_block.h: $(SRC_PATH)/scripts/modules/module_block.py config-host.mak
$(call quiet-command,$(PYTHON) $< $@ \
diff --git a/Makefile.objs b/Makefile.objs
index 2100845..1fa9450 100644
--- a/Makefile.objs
+++ b/Makefile.objs
@@ -112,6 +112,10 @@ qga-vss-dll-obj-y = qga/
ivshmem-client-obj-y = contrib/ivshmem-client/
ivshmem-server-obj-y = contrib/ivshmem-server/
libvhost-user-obj-y = contrib/libvhost-user/
+vhost-user-scsi.o-cflags := $(LIBISCSI_CFLAGS)
+vhost-user-scsi.o-libs := $(LIBISCSI_LIBS)
+vhost-user-scsi-obj-y = contrib/vhost-user-scsi/
+vhost-user-scsi-obj-y += contrib/libvhost-user/libvhost-user.o
######################################################################
trace-events-subdirs =
diff --git a/contrib/libvhost-user/libvhost-user.h b/contrib/libvhost-user/libvhost-user.h
index af02a31..53ef222 100644
--- a/contrib/libvhost-user/libvhost-user.h
+++ b/contrib/libvhost-user/libvhost-user.h
@@ -17,6 +17,7 @@
#include <stdint.h>
#include <stdbool.h>
#include <stddef.h>
+#include <sys/poll.h>
#include <linux/vhost.h>
#include "standard-headers/linux/virtio_ring.h"
@@ -192,11 +193,11 @@ typedef struct VuVirtq {
} VuVirtq;
enum VuWatchCondtion {
- VU_WATCH_IN = 1 << 0,
- VU_WATCH_OUT = 1 << 1,
- VU_WATCH_PRI = 1 << 2,
- VU_WATCH_ERR = 1 << 3,
- VU_WATCH_HUP = 1 << 4,
+ VU_WATCH_IN = POLLIN,
+ VU_WATCH_OUT = POLLOUT,
+ VU_WATCH_PRI = POLLPRI,
+ VU_WATCH_ERR = POLLERR,
+ VU_WATCH_HUP = POLLHUP,
};
typedef void (*vu_panic_cb) (VuDev *dev, const char *err);
diff --git a/contrib/vhost-user-scsi/Makefile.objs b/contrib/vhost-user-scsi/Makefile.objs
new file mode 100644
index 0000000..e83a38a
--- /dev/null
+++ b/contrib/vhost-user-scsi/Makefile.objs
@@ -0,0 +1 @@
+vhost-user-scsi-obj-y = vhost-user-scsi.o
diff --git a/contrib/vhost-user-scsi/vhost-user-scsi.c b/contrib/vhost-user-scsi/vhost-user-scsi.c
new file mode 100644
index 0000000..b5ae02c
--- /dev/null
+++ b/contrib/vhost-user-scsi/vhost-user-scsi.c
@@ -0,0 +1,886 @@
+/*
+ * vhost-user-scsi sample application
+ *
+ * Copyright (c) 2016 Nutanix Inc. All rights reserved.
+ *
+ * Author:
+ * Felipe Franciosi <felipe@nutanix.com>
+ *
+ * This work is licensed under the terms of the GNU GPL, version 2 only.
+ * See the COPYING file in the top-level directory.
+ */
+
+#include "qemu/osdep.h"
+#include "contrib/libvhost-user/libvhost-user.h"
+#include "hw/virtio/virtio-scsi.h"
+#include "iscsi/iscsi.h"
+
+#include <glib.h>
+
+/* Small compat shim from glib 2.32 */
+#ifndef G_SOURCE_CONTINUE
+#define G_SOURCE_CONTINUE TRUE
+#endif
+#ifndef G_SOURCE_REMOVE
+#define G_SOURCE_REMOVE FALSE
+#endif
+
+/* #define VUS_DEBUG 1 */
+
+/** Log helpers **/
+
+#define PPRE \
+ struct timespec ts; \
+ char timebuf[64]; \
+ struct tm tm; \
+ (void)clock_gettime(CLOCK_REALTIME, &ts); \
+ (void)strftime(timebuf, 64, "%Y%m%d %T", gmtime_r(&ts.tv_sec, &tm))
+
+#define PEXT(lvl, msg, ...) do { \
+ PPRE; \
+ fprintf(stderr, "%s.%06ld " lvl ": %s:%s():%d: " msg "\n", \
+ timebuf, ts.tv_nsec / 1000, \
+ __FILE__, __func__, __LINE__, ## __VA_ARGS__); \
+} while (0)
+
+#define PNOR(lvl, msg, ...) do { \
+ PPRE; \
+ fprintf(stderr, "%s.%06ld " lvl ": " msg "\n", \
+ timebuf, ts.tv_nsec / 1000, ## __VA_ARGS__); \
+} while (0)
+
+#ifdef VUS_DEBUG
+#define PDBG(msg, ...) PEXT("DBG", msg, ## __VA_ARGS__)
+#define PERR(msg, ...) PEXT("ERR", msg, ## __VA_ARGS__)
+#define PLOG(msg, ...) PEXT("LOG", msg, ## __VA_ARGS__)
+#else
+#define PDBG(msg, ...) { }
+#define PERR(msg, ...) PNOR("ERR", msg, ## __VA_ARGS__)
+#define PLOG(msg, ...) PNOR("LOG", msg, ## __VA_ARGS__)
+#endif
+
+/** vhost-user-scsi specific definitions **/
+
+ /* Only 1 LUN and device supported today */
+#define VUS_MAX_LUNS 1
+#define VUS_MAX_DEVS 1
+
+#define VUS_ISCSI_INITIATOR "iqn.2016-11.com.nutanix:vhost-user-scsi"
+
+typedef struct iscsi_lun {
+ struct iscsi_context *iscsi_ctx;
+ int iscsi_lun;
+} iscsi_lun_t;
+
+typedef struct vhost_scsi_dev {
+ VuDev vu_dev;
+ int server_sock;
+ GMainLoop *loop;
+ GTree *fdmap; /* fd -> gsource context id */
+ iscsi_lun_t luns[VUS_MAX_LUNS];
+} vhost_scsi_dev_t;
+
+static vhost_scsi_dev_t *vhost_scsi_devs[VUS_MAX_DEVS];
+
+/** glib event loop integration for libvhost-user and misc callbacks **/
+
+QEMU_BUILD_BUG_ON((int)G_IO_IN != (int)VU_WATCH_IN);
+QEMU_BUILD_BUG_ON((int)G_IO_OUT != (int)VU_WATCH_OUT);
+QEMU_BUILD_BUG_ON((int)G_IO_PRI != (int)VU_WATCH_PRI);
+QEMU_BUILD_BUG_ON((int)G_IO_ERR != (int)VU_WATCH_ERR);
+QEMU_BUILD_BUG_ON((int)G_IO_HUP != (int)VU_WATCH_HUP);
+
+typedef struct vus_gsrc {
+ GSource parent;
+ vhost_scsi_dev_t *vdev_scsi;
+ GPollFD gfd;
+ vu_watch_cb vu_cb;
+} vus_gsrc_t;
+
+static gint vus_fdmap_compare(gconstpointer a, gconstpointer b)
+{
+ return (b > a) - (b < a);
+}
+
+static gboolean vus_gsrc_prepare(GSource *src, gint *timeout)
+{
+ assert(timeout);
+
+ *timeout = -1;
+ return FALSE;
+}
+
+static gboolean vus_gsrc_check(GSource *src)
+{
+ vus_gsrc_t *vus_src = (vus_gsrc_t *)src;
+
+ assert(vus_src);
+
+ return vus_src->gfd.revents & vus_src->gfd.events;
+}
+
+static gboolean vus_gsrc_dispatch(GSource *src, GSourceFunc cb, gpointer data)
+{
+ vhost_scsi_dev_t *vdev_scsi;
+ vus_gsrc_t *vus_src = (vus_gsrc_t *)src;
+
+ assert(vus_src);
+ assert(!(vus_src->vu_cb && cb));
+
+ vdev_scsi = vus_src->vdev_scsi;
+
+ assert(vdev_scsi);
+
+ if (cb) {
+ return cb(data);
+ }
+ if (vus_src->vu_cb) {
+ vus_src->vu_cb(&vdev_scsi->vu_dev, vus_src->gfd.revents, data);
+ }
+ return G_SOURCE_CONTINUE;
+}
+
+static GSourceFuncs vus_gsrc_funcs = {
+ vus_gsrc_prepare,
+ vus_gsrc_check,
+ vus_gsrc_dispatch,
+ NULL
+};
+
+static int vus_gsrc_new(vhost_scsi_dev_t *vdev_scsi, int fd, GIOCondition cond,
+ vu_watch_cb vu_cb, GSourceFunc gsrc_cb, gpointer data)
+{
+ GSource *vus_gsrc;
+ vus_gsrc_t *vus_src;
+ guint id;
+
+ assert(vdev_scsi);
+ assert(fd >= 0);
+ assert(vu_cb || gsrc_cb);
+ assert(!(vu_cb && gsrc_cb));
+
+ vus_gsrc = g_source_new(&vus_gsrc_funcs, sizeof(vus_gsrc_t));
+ if (!vus_gsrc) {
+ PERR("Error creating GSource for new watch");
+ return -1;
+ }
+ vus_src = (vus_gsrc_t *)vus_gsrc;
+
+ vus_src->vdev_scsi = vdev_scsi;
+ vus_src->gfd.fd = fd;
+ vus_src->gfd.events = cond;
+ vus_src->vu_cb = vu_cb;
+
+ g_source_add_poll(vus_gsrc, &vus_src->gfd);
+ g_source_set_callback(vus_gsrc, gsrc_cb, data, NULL);
+ id = g_source_attach(vus_gsrc, NULL);
+ assert(id);
+ g_source_unref(vus_gsrc);
+
+ g_tree_insert(vdev_scsi->fdmap, (gpointer)(uintptr_t)fd,
+ (gpointer)(uintptr_t)id);
+
+ return 0;
+}
+
+/* from libiscsi's scsi-lowlevel.h **
+ *
+ * nb. We can't directly include scsi-lowlevel.h due to a namespace conflict:
+ * QEMU's scsi.h also defines "SCSI_XFER_NONE".
+ */
+
+#define SCSI_CDB_MAX_SIZE 16
+
+struct scsi_iovector {
+ struct scsi_iovec *iov;
+ int niov;
+ int nalloc;
+ size_t offset;
+ int consumed;
+};
+
+struct scsi_allocated_memory {
+ struct scsi_allocated_memory *next;
+ char buf[0];
+};
+
+struct scsi_data {
+ int size;
+ unsigned char *data;
+};
+
+enum scsi_sense_key {
+ SCSI_SENSE_NO_SENSE = 0x00,
+ SCSI_SENSE_RECOVERED_ERROR = 0x01,
+ SCSI_SENSE_NOT_READY = 0x02,
+ SCSI_SENSE_MEDIUM_ERROR = 0x03,
+ SCSI_SENSE_HARDWARE_ERROR = 0x04,
+ SCSI_SENSE_ILLEGAL_REQUEST = 0x05,
+ SCSI_SENSE_UNIT_ATTENTION = 0x06,
+ SCSI_SENSE_DATA_PROTECTION = 0x07,
+ SCSI_SENSE_BLANK_CHECK = 0x08,
+ SCSI_SENSE_VENDOR_SPECIFIC = 0x09,
+ SCSI_SENSE_COPY_ABORTED = 0x0a,
+ SCSI_SENSE_COMMAND_ABORTED = 0x0b,
+ SCSI_SENSE_OBSOLETE_ERROR_CODE = 0x0c,
+ SCSI_SENSE_OVERFLOW_COMMAND = 0x0d,
+ SCSI_SENSE_MISCOMPARE = 0x0e
+};
+
+struct scsi_sense {
+ unsigned char error_type;
+ enum scsi_sense_key key;
+ int ascq;
+ unsigned sense_specific:1;
+ unsigned ill_param_in_cdb:1;
+ unsigned bit_pointer_valid:1;
+ unsigned char bit_pointer;
+ uint16_t field_pointer;
+};
+
+enum scsi_residual {
+ SCSI_RESIDUAL_NO_RESIDUAL = 0,
+ SCSI_RESIDUAL_UNDERFLOW,
+ SCSI_RESIDUAL_OVERFLOW
+};
+
+struct scsi_task {
+ int status;
+ int cdb_size;
+ int xfer_dir;
+ int expxferlen;
+ unsigned char cdb[SCSI_CDB_MAX_SIZE];
+ enum scsi_residual residual_status;
+ size_t residual;
+ struct scsi_sense sense;
+ struct scsi_data datain;
+ struct scsi_allocated_memory *mem;
+ void *ptr;
+
+ uint32_t itt;
+ uint32_t cmdsn;
+ uint32_t lun;
+
+ struct scsi_iovector iovector_in;
+ struct scsi_iovector iovector_out;
+};
+
+/** libiscsi integration **/
+
+static int iscsi_add_lun(iscsi_lun_t *lun, char *iscsi_uri)
+{
+ struct iscsi_url *iscsi_url;
+ struct iscsi_context *iscsi_ctx;
+ int ret = 0;
+
+ assert(lun);
+ assert(iscsi_uri);
+
+ iscsi_ctx = iscsi_create_context(VUS_ISCSI_INITIATOR);
+ if (!iscsi_ctx) {
+ PERR("Unable to create iSCSI context");
+ return -1;
+ }
+
+ iscsi_url = iscsi_parse_full_url(iscsi_ctx, iscsi_uri);
+ if (!iscsi_url) {
+ PERR("Unable to parse iSCSI URL: %s", iscsi_get_error(iscsi_ctx));
+ goto fail;
+ }
+
+ iscsi_set_session_type(iscsi_ctx, ISCSI_SESSION_NORMAL);
+ iscsi_set_header_digest(iscsi_ctx, ISCSI_HEADER_DIGEST_NONE_CRC32C);
+ if (iscsi_full_connect_sync(iscsi_ctx, iscsi_url->portal, iscsi_url->lun)) {
+ PERR("Unable to login to iSCSI portal: %s", iscsi_get_error(iscsi_ctx));
+ goto fail;
+ }
+
+ lun->iscsi_ctx = iscsi_ctx;
+ lun->iscsi_lun = iscsi_url->lun;
+
+ PDBG("Context %p created for lun 0: %s", iscsi_ctx, iscsi_uri);
+
+out:
+ if (iscsi_url) {
+ iscsi_destroy_url(iscsi_url);
+ }
+ return ret;
+
+fail:
+ (void)iscsi_destroy_context(iscsi_ctx);
+ ret = -1;
+ goto out;
+}
+
+static struct scsi_task *scsi_task_new(int cdb_len, uint8_t *cdb, int dir,
+ int xfer_len) {
+ struct scsi_task *task;
+
+ assert(cdb_len > 0);
+ assert(cdb);
+
+ task = calloc(1, sizeof(struct scsi_task));
+ if (!task) {
+ PERR("Error allocating task: %s", strerror(errno));
+ return NULL;
+ }
+
+ memcpy(task->cdb, cdb, cdb_len);
+ task->cdb_size = cdb_len;
+ task->xfer_dir = dir;
+ task->expxferlen = xfer_len;
+
+ return task;
+}
+
+static int get_cdb_len(uint8_t *cdb)
+{
+ assert(cdb);
+
+ switch (cdb[0] >> 5) {
+ case 0: return 6;
+ case 1: /* fall through */
+ case 2: return 10;
+ case 4: return 16;
+ case 5: return 12;
+ }
+ PERR("Unable to determine cdb len (0x%02hhX)", cdb[0] >> 5);
+ return -1;
+}
+
+static int handle_cmd_sync(struct iscsi_context *ctx,
+ VirtIOSCSICmdReq *req,
+ struct iovec *out, unsigned int out_len,
+ VirtIOSCSICmdResp *rsp,
+ struct iovec *in, unsigned int in_len) {
+ struct scsi_task *task;
+ uint32_t dir;
+ uint32_t len;
+ int cdb_len;
+ int i;
+
+ assert(ctx);
+ assert(req);
+ assert(rsp);
+
+ if (!(!req->lun[1] && req->lun[2] == 0x40 && !req->lun[3])) {
+ /* Ignore anything different than target=0, lun=0 */
+ PDBG("Ignoring unconnected lun (0x%hhX, 0x%hhX)",
+ req->lun[1], req->lun[3]);
+ rsp->status = SCSI_STATUS_CHECK_CONDITION;
+ memset(rsp->sense, 0, sizeof(rsp->sense));
+ rsp->sense_len = 18;
+ rsp->sense[0] = 0x70;
+ rsp->sense[2] = SCSI_SENSE_ILLEGAL_REQUEST;
+ rsp->sense[7] = 10;
+ rsp->sense[12] = 0x24;
+
+ return 0;
+ }
+
+ cdb_len = get_cdb_len(req->cdb);
+ if (cdb_len == -1) {
+ return -1;
+ }
+
+ len = 0;
+ if (!out_len && !in_len) {
+ dir = SCSI_XFER_NONE;
+ } else if (out_len) {
+ dir = SCSI_XFER_TO_DEV;
+ for (i = 0; i < out_len; i++) {
+ len += out[i].iov_len;
+ }
+ } else {
+ dir = SCSI_XFER_FROM_DEV;
+ for (i = 0; i < in_len; i++) {
+ len += in[i].iov_len;
+ }
+ }
+
+ task = scsi_task_new(cdb_len, req->cdb, dir, len);
+ if (!task) {
+ PERR("Unable to create iscsi task");
+ return -1;
+ }
+
+ if (dir == SCSI_XFER_TO_DEV) {
+ task->iovector_out.iov = (struct scsi_iovec *)out;
+ task->iovector_out.niov = out_len;
+ } else if (dir == SCSI_XFER_FROM_DEV) {
+ task->iovector_in.iov = (struct scsi_iovec *)in;
+ task->iovector_in.niov = in_len;
+ }
+
+ PDBG("Sending iscsi cmd (cdb_len=%d, dir=%d, task=%p)",
+ cdb_len, dir, task);
+ if (!iscsi_scsi_command_sync(ctx, 0, task, NULL)) {
+ PERR("Error serving SCSI command");
+ free(task);
+ return -1;
+ }
+
+ memset(rsp, 0, sizeof(*rsp));
+
+ rsp->status = task->status;
+ rsp->resid = task->residual;
+
+ if (task->status == SCSI_STATUS_CHECK_CONDITION) {
+ rsp->response = VIRTIO_SCSI_S_FAILURE;
+ rsp->sense_len = task->datain.size - 2;
+ memcpy(rsp->sense, &task->datain.data[2], rsp->sense_len);
+ }
+
+ free(task);
+
+ PDBG("Filled in rsp: status=%hhX, resid=%u, response=%hhX, sense_len=%u",
+ rsp->status, rsp->resid, rsp->response, rsp->sense_len);
+
+ return 0;
+}
+
+/** libvhost-user callbacks **/
+
+static vhost_scsi_dev_t *vdev_scsi_find_by_vu(VuDev *vu_dev);
+
+static void vus_panic_cb(VuDev *vu_dev, const char *buf)
+{
+ vhost_scsi_dev_t *vdev_scsi;
+
+ assert(vu_dev);
+
+ vdev_scsi = vdev_scsi_find_by_vu(vu_dev);
+
+ if (buf) {
+ PERR("vu_panic: %s", buf);
+ }
+
+ if (vdev_scsi) {
+ assert(vdev_scsi->loop);
+ g_main_loop_quit(vdev_scsi->loop);
+ }
+}
+
+static void vus_add_watch_cb(VuDev *vu_dev, int fd, int vu_evt, vu_watch_cb cb,
+ void *pvt) {
+ vhost_scsi_dev_t *vdev_scsi;
+ guint id;
+
+ assert(vu_dev);
+ assert(fd >= 0);
+ assert(cb);
+
+ vdev_scsi = vdev_scsi_find_by_vu(vu_dev);
+ if (!vdev_scsi) {
+ vus_panic_cb(vu_dev, NULL);
+ return;
+ }
+
+ id = (guint)(uintptr_t)g_tree_lookup(vdev_scsi->fdmap,
+ (gpointer)(uintptr_t)fd);
+ if (id) {
+ GSource *vus_src = g_main_context_find_source_by_id(NULL, id);
+ assert(vus_src);
+ g_source_destroy(vus_src);
+ (void)g_tree_remove(vdev_scsi->fdmap, (gpointer)(uintptr_t)fd);
+ }
+
+ if (vus_gsrc_new(vdev_scsi, fd, vu_evt, cb, NULL, pvt)) {
+ vus_panic_cb(vu_dev, NULL);
+ }
+}
+
+static void vus_del_watch_cb(VuDev *vu_dev, int fd)
+{
+ vhost_scsi_dev_t *vdev_scsi;
+ guint id;
+
+ assert(vu_dev);
+ assert(fd >= 0);
+
+ vdev_scsi = vdev_scsi_find_by_vu(vu_dev);
+ if (!vdev_scsi) {
+ vus_panic_cb(vu_dev, NULL);
+ return;
+ }
+
+ id = (guint)(uintptr_t)g_tree_lookup(vdev_scsi->fdmap,
+ (gpointer)(uintptr_t)fd);
+ if (id) {
+ GSource *vus_src = g_main_context_find_source_by_id(NULL, id);
+ assert(vus_src);
+ g_source_destroy(vus_src);
+ (void)g_tree_remove(vdev_scsi->fdmap, (gpointer)(uintptr_t)fd);
+ }
+}
+
+static void vus_proc_ctl(VuDev *vu_dev, int idx)
+{
+ /* Control VQ not implemented */
+}
+
+static void vus_proc_evt(VuDev *vu_dev, int idx)
+{
+ /* Event VQ not implemented */
+}
+
+static void vus_proc_req(VuDev *vu_dev, int idx)
+{
+ vhost_scsi_dev_t *vdev_scsi;
+ VuVirtq *vq;
+
+ assert(vu_dev);
+
+ vdev_scsi = vdev_scsi_find_by_vu(vu_dev);
+ if (!vdev_scsi) {
+ vus_panic_cb(vu_dev, NULL);
+ return;
+ }
+
+ if ((idx < 0) || (idx >= VHOST_MAX_NR_VIRTQUEUE)) {
+ PERR("VQ Index out of range: %d", idx);
+ vus_panic_cb(vu_dev, NULL);
+ return;
+ }
+
+ vq = vu_get_queue(vu_dev, idx);
+ if (!vq) {
+ PERR("Error fetching VQ (dev=%p, idx=%d)", vu_dev, idx);
+ vus_panic_cb(vu_dev, NULL);
+ return;
+ }
+
+ PDBG("Got kicked on vq[%d]@%p", idx, vq);
+
+ while (1) {
+ VuVirtqElement *elem;
+ VirtIOSCSICmdReq *req;
+ VirtIOSCSICmdResp *rsp;
+
+ elem = vu_queue_pop(vu_dev, vq, sizeof(VuVirtqElement));
+ if (!elem) {
+ PDBG("No more elements pending on vq[%d]@%p", idx, vq);
+ break;
+ }
+ PDBG("Popped elem@%p", elem);
+
+ assert(!((elem->out_num > 1) && (elem->in_num > 1)));
+ assert((elem->out_num > 0) && (elem->in_num > 0));
+
+ if (elem->out_sg[0].iov_len < sizeof(VirtIOSCSICmdReq)) {
+ PERR("Invalid virtio-scsi req header");
+ vus_panic_cb(vu_dev, NULL);
+ break;
+ }
+ req = (VirtIOSCSICmdReq *)elem->out_sg[0].iov_base;
+
+ if (elem->in_sg[0].iov_len < sizeof(VirtIOSCSICmdResp)) {
+ PERR("Invalid virtio-scsi rsp header");
+ vus_panic_cb(vu_dev, NULL);
+ break;
+ }
+ rsp = (VirtIOSCSICmdResp *)elem->in_sg[0].iov_base;
+
+ if (handle_cmd_sync(vdev_scsi->luns[0].iscsi_ctx,
+ req, &elem->out_sg[1], elem->out_num - 1,
+ rsp, &elem->in_sg[1], elem->in_num - 1) != 0) {
+ vus_panic_cb(vu_dev, NULL);
+ break;
+ }
+
+ vu_queue_push(vu_dev, vq, elem, 0);
+ vu_queue_notify(vu_dev, vq);
+
+ free(elem);
+ }
+}
+
+static void vus_queue_set_started(VuDev *vu_dev, int idx, bool started)
+{
+ VuVirtq *vq;
+
+ assert(vu_dev);
+
+ if ((idx < 0) || (idx >= VHOST_MAX_NR_VIRTQUEUE)) {
+ PERR("VQ Index out of range: %d", idx);
+ vus_panic_cb(vu_dev, NULL);
+ return;
+ }
+
+ vq = vu_get_queue(vu_dev, idx);
+
+ switch (idx) {
+ case 0:
+ vu_set_queue_handler(vu_dev, vq, started ? vus_proc_ctl : NULL);
+ break;
+ case 1:
+ vu_set_queue_handler(vu_dev, vq, started ? vus_proc_evt : NULL);
+ break;
+ default:
+ vu_set_queue_handler(vu_dev, vq, started ? vus_proc_req : NULL);
+ }
+}
+
+static const VuDevIface vus_iface = {
+ .queue_set_started = vus_queue_set_started,
+};
+
+static gboolean vus_vhost_cb(gpointer data)
+{
+ VuDev *vu_dev = (VuDev *)data;
+
+ assert(vu_dev);
+
+ if (!vu_dispatch(vu_dev) != 0) {
+ PERR("Error processing vhost message");
+ vus_panic_cb(vu_dev, NULL);
+ return G_SOURCE_REMOVE;
+ }
+
+ return G_SOURCE_CONTINUE;
+}
+
+/** misc helpers **/
+
+static int unix_sock_new(char *unix_fn)
+{
+ int sock;
+ struct sockaddr_un un;
+ size_t len;
+
+ assert(unix_fn);
+
+ sock = socket(AF_UNIX, SOCK_STREAM, 0);
+ if (sock <= 0) {
+ perror("socket");
+ return -1;
+ }
+
+ un.sun_family = AF_UNIX;
+ (void)snprintf(un.sun_path, sizeof(un.sun_path), "%s", unix_fn);
+ len = sizeof(un.sun_family) + strlen(un.sun_path);
+
+ (void)unlink(unix_fn);
+ if (bind(sock, (struct sockaddr *)&un, len) < 0) {
+ perror("bind");
+ goto fail;
+ }
+
+ if (listen(sock, 1) < 0) {
+ perror("listen");
+ goto fail;
+ }
+
+ return sock;
+
+fail:
+ (void)close(sock);
+
+ return -1;
+}
+
+/** vhost-user-scsi **/
+
+static vhost_scsi_dev_t *vdev_scsi_find_by_vu(VuDev *vu_dev)
+{
+ int i;
+
+ assert(vu_dev);
+
+ for (i = 0; i < VUS_MAX_DEVS; i++) {
+ if (&vhost_scsi_devs[i]->vu_dev == vu_dev) {
+ return vhost_scsi_devs[i];
+ }
+ }
+
+ PERR("Unknown VuDev %p", vu_dev);
+ return NULL;
+}
+
+static void vdev_scsi_deinit(vhost_scsi_dev_t *vdev_scsi)
+{
+ if (!vdev_scsi) {
+ return;
+ }
+
+ if (vdev_scsi->server_sock >= 0) {
+ struct sockaddr_storage ss;
+ socklen_t sslen = sizeof(ss);
+
+ if (getsockname(vdev_scsi->server_sock, (struct sockaddr *)&ss,
+ &sslen) == 0) {
+ struct sockaddr_un *su = (struct sockaddr_un *)&ss;
+ (void)unlink(su->sun_path);
+ }
+
+ (void)close(vdev_scsi->server_sock);
+ vdev_scsi->server_sock = -1;
+ }
+
+ if (vdev_scsi->loop) {
+ g_main_loop_unref(vdev_scsi->loop);
+ vdev_scsi->loop = NULL;
+ }
+}
+
+static vhost_scsi_dev_t *vdev_scsi_new(char *unix_fn)
+{
+ vhost_scsi_dev_t *vdev_scsi = NULL;
+
+ assert(unix_fn);
+
+ vdev_scsi = calloc(1, sizeof(vhost_scsi_dev_t));
+ if (!vdev_scsi) {
+ PERR("calloc: %s", strerror(errno));
+ return NULL;
+ }
+
+ vdev_scsi->server_sock = unix_sock_new(unix_fn);
+ if (vdev_scsi->server_sock < 0) {
+ goto err;
+ }
+
+ vdev_scsi->loop = g_main_loop_new(NULL, FALSE);
+ if (!vdev_scsi->loop) {
+ PERR("Error creating glib event loop");
+ goto err;
+ }
+
+ vdev_scsi->fdmap = g_tree_new(vus_fdmap_compare);
+ if (!vdev_scsi->fdmap) {
+ PERR("Error creating glib tree for fdmap");
+ goto err;
+ }
+
+ return vdev_scsi;
+
+err:
+ vdev_scsi_deinit(vdev_scsi);
+ free(vdev_scsi);
+
+ return NULL;
+}
+
+static int vdev_scsi_add_iscsi_lun(vhost_scsi_dev_t *vdev_scsi,
+ char *iscsi_uri, uint32_t lun) {
+ assert(vdev_scsi);
+ assert(iscsi_uri);
+ assert(lun < VUS_MAX_LUNS);
+
+ if (vdev_scsi->luns[lun].iscsi_ctx) {
+ PERR("Lun %d already configured", lun);
+ return -1;
+ }
+
+ if (iscsi_add_lun(&vdev_scsi->luns[lun], iscsi_uri) != 0) {
+ return -1;
+ }
+
+ return 0;
+}
+
+static int vdev_scsi_run(vhost_scsi_dev_t *vdev_scsi)
+{
+ int cli_sock;
+ int ret = 0;
+
+ assert(vdev_scsi);
+ assert(vdev_scsi->server_sock >= 0);
+ assert(vdev_scsi->loop);
+
+ cli_sock = accept(vdev_scsi->server_sock, (void *)0, (void *)0);
+ if (cli_sock < 0) {
+ perror("accept");
+ return -1;
+ }
+
+ vu_init(&vdev_scsi->vu_dev,
+ cli_sock,
+ vus_panic_cb,
+ vus_add_watch_cb,
+ vus_del_watch_cb,
+ &vus_iface);
+
+ if (vus_gsrc_new(vdev_scsi, cli_sock, G_IO_IN, NULL, vus_vhost_cb,
+ &vdev_scsi->vu_dev)) {
+ goto fail;
+ }
+
+ g_main_loop_run(vdev_scsi->loop);
+
+out:
+ vu_deinit(&vdev_scsi->vu_dev);
+
+ return ret;
+
+fail:
+ ret = -1;
+ goto out;
+}
+
+int main(int argc, char **argv)
+{
+ vhost_scsi_dev_t *vdev_scsi = NULL;
+ char *unix_fn = NULL;
+ char *iscsi_uri = NULL;
+ int opt, err = EXIT_SUCCESS;
+
+ while ((opt = getopt(argc, argv, "u:i:")) != -1) {
+ switch (opt) {
+ case 'h':
+ goto help;
+ case 'u':
+ unix_fn = strdup(optarg);
+ break;
+ case 'i':
+ iscsi_uri = strdup(optarg);
+ break;
+ default:
+ goto help;
+ }
+ }
+ if (!unix_fn || !iscsi_uri) {
+ goto help;
+ }
+
+ vdev_scsi = vdev_scsi_new(unix_fn);
+ if (!vdev_scsi) {
+ goto err;
+ }
+ vhost_scsi_devs[0] = vdev_scsi;
+
+ if (vdev_scsi_add_iscsi_lun(vdev_scsi, iscsi_uri, 0) != 0) {
+ goto err;
+ }
+
+ if (vdev_scsi_run(vdev_scsi) != 0) {
+ goto err;
+ }
+
+out:
+ if (vdev_scsi) {
+ vdev_scsi_deinit(vdev_scsi);
+ free(vdev_scsi);
+ }
+ if (unix_fn) {
+ free(unix_fn);
+ }
+ if (iscsi_uri) {
+ free(iscsi_uri);
+ }
+
+ return err;
+
+err:
+ err = EXIT_FAILURE;
+ goto out;
+
+help:
+ fprintf(stderr, "Usage: %s [ -u unix_sock_path -i iscsi_uri ] | [ -h ]\n",
+ argv[0]);
+ fprintf(stderr, " -u path to unix socket\n");
+ fprintf(stderr, " -i iscsi uri for lun 0\n");
+ fprintf(stderr, " -h print help and quit\n");
+
+ goto err;
+}
--
1.8.3.1
^ permalink raw reply related [flat|nested] 44+ messages in thread
* [Qemu-devel] [PULL 19/33] target/i386: enable A20 automatically in system management mode
2017-06-01 12:41 [Qemu-devel] [PULL 00/33] Misc patches for 2017-06-01 Paolo Bonzini
` (17 preceding siblings ...)
2017-06-01 12:41 ` [Qemu-devel] [PULL 18/33] vhost-user-scsi: Introduce a vhost-user-scsi sample application Paolo Bonzini
@ 2017-06-01 12:41 ` Paolo Bonzini
2017-06-01 12:41 ` [Qemu-devel] [PULL 20/33] target/i386: use multiple CPU AddressSpaces Paolo Bonzini
` (15 subsequent siblings)
34 siblings, 0 replies; 44+ messages in thread
From: Paolo Bonzini @ 2017-06-01 12:41 UTC (permalink / raw)
To: qemu-devel
Ignore env->a20_mask when running in system management mode.
Reported-by: Anthony Xu <anthony.xu@intel.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Message-Id: <1494502528-12670-1-git-send-email-pbonzini@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
---
target/i386/arch_memory_mapping.c | 18 +++++++++--------
target/i386/cpu.h | 9 +++++++++
target/i386/helper.c | 42 +++++++++++++++++++++------------------
3 files changed, 42 insertions(+), 27 deletions(-)
diff --git a/target/i386/arch_memory_mapping.c b/target/i386/arch_memory_mapping.c
index 826aee5..647cff2 100644
--- a/target/i386/arch_memory_mapping.c
+++ b/target/i386/arch_memory_mapping.c
@@ -272,25 +272,27 @@ void x86_cpu_get_memory_mapping(CPUState *cs, MemoryMappingList *list,
{
X86CPU *cpu = X86_CPU(cs);
CPUX86State *env = &cpu->env;
+ int32_t a20_mask;
if (!cpu_paging_enabled(cs)) {
/* paging is disabled */
return;
}
+ a20_mask = x86_get_a20_mask(env);
if (env->cr[4] & CR4_PAE_MASK) {
#ifdef TARGET_X86_64
if (env->hflags & HF_LMA_MASK) {
if (env->cr[4] & CR4_LA57_MASK) {
hwaddr pml5e_addr;
- pml5e_addr = (env->cr[3] & PLM4_ADDR_MASK) & env->a20_mask;
- walk_pml5e(list, cs->as, pml5e_addr, env->a20_mask);
+ pml5e_addr = (env->cr[3] & PLM4_ADDR_MASK) & a20_mask;
+ walk_pml5e(list, cs->as, pml5e_addr, a20_mask);
} else {
hwaddr pml4e_addr;
- pml4e_addr = (env->cr[3] & PLM4_ADDR_MASK) & env->a20_mask;
- walk_pml4e(list, cs->as, pml4e_addr, env->a20_mask,
+ pml4e_addr = (env->cr[3] & PLM4_ADDR_MASK) & a20_mask;
+ walk_pml4e(list, cs->as, pml4e_addr, a20_mask,
0xffffULL << 48);
}
} else
@@ -298,16 +300,16 @@ void x86_cpu_get_memory_mapping(CPUState *cs, MemoryMappingList *list,
{
hwaddr pdpe_addr;
- pdpe_addr = (env->cr[3] & ~0x1f) & env->a20_mask;
- walk_pdpe2(list, cs->as, pdpe_addr, env->a20_mask);
+ pdpe_addr = (env->cr[3] & ~0x1f) & a20_mask;
+ walk_pdpe2(list, cs->as, pdpe_addr, a20_mask);
}
} else {
hwaddr pde_addr;
bool pse;
- pde_addr = (env->cr[3] & ~0xfff) & env->a20_mask;
+ pde_addr = (env->cr[3] & ~0xfff) & a20_mask;
pse = !!(env->cr[4] & CR4_PSE_MASK);
- walk_pde2(list, cs->as, pde_addr, env->a20_mask, pse);
+ walk_pde2(list, cs->as, pde_addr, a20_mask, pse);
}
}
diff --git a/target/i386/cpu.h b/target/i386/cpu.h
index c4602ca..32a3a0c 100644
--- a/target/i386/cpu.h
+++ b/target/i386/cpu.h
@@ -1624,6 +1624,15 @@ static inline MemTxAttrs cpu_get_mem_attrs(CPUX86State *env)
return ((MemTxAttrs) { .secure = (env->hflags & HF_SMM_MASK) != 0 });
}
+static inline int32_t x86_get_a20_mask(CPUX86State *env)
+{
+ if (env->hflags & HF_SMM_MASK) {
+ return -1;
+ } else {
+ return env->a20_mask;
+ }
+}
+
/* fpu_helper.c */
void cpu_set_mxcsr(CPUX86State *env, uint32_t val);
void cpu_set_fpuc(CPUX86State *env, uint16_t val);
diff --git a/target/i386/helper.c b/target/i386/helper.c
index f11cac6..6c16e7c 100644
--- a/target/i386/helper.c
+++ b/target/i386/helper.c
@@ -724,6 +724,7 @@ int x86_cpu_handle_mmu_fault(CPUState *cs, vaddr addr,
X86CPU *cpu = X86_CPU(cs);
CPUX86State *env = &cpu->env;
uint64_t ptep, pte;
+ int32_t a20_mask;
target_ulong pde_addr, pte_addr;
int error_code = 0;
int is_dirty, prot, page_size, is_write, is_user;
@@ -739,6 +740,7 @@ int x86_cpu_handle_mmu_fault(CPUState *cs, vaddr addr,
#endif
is_write = is_write1 & 1;
+ a20_mask = x86_get_a20_mask(env);
if (!(env->cr[0] & CR0_PG_MASK)) {
pte = addr;
#ifdef TARGET_X86_64
@@ -777,7 +779,7 @@ int x86_cpu_handle_mmu_fault(CPUState *cs, vaddr addr,
if (la57) {
pml5e_addr = ((env->cr[3] & ~0xfff) +
- (((addr >> 48) & 0x1ff) << 3)) & env->a20_mask;
+ (((addr >> 48) & 0x1ff) << 3)) & a20_mask;
pml5e = x86_ldq_phys(cs, pml5e_addr);
if (!(pml5e & PG_PRESENT_MASK)) {
goto do_fault;
@@ -796,7 +798,7 @@ int x86_cpu_handle_mmu_fault(CPUState *cs, vaddr addr,
}
pml4e_addr = ((pml5e & PG_ADDRESS_MASK) +
- (((addr >> 39) & 0x1ff) << 3)) & env->a20_mask;
+ (((addr >> 39) & 0x1ff) << 3)) & a20_mask;
pml4e = x86_ldq_phys(cs, pml4e_addr);
if (!(pml4e & PG_PRESENT_MASK)) {
goto do_fault;
@@ -810,7 +812,7 @@ int x86_cpu_handle_mmu_fault(CPUState *cs, vaddr addr,
}
ptep &= pml4e ^ PG_NX_MASK;
pdpe_addr = ((pml4e & PG_ADDRESS_MASK) + (((addr >> 30) & 0x1ff) << 3)) &
- env->a20_mask;
+ a20_mask;
pdpe = x86_ldq_phys(cs, pdpe_addr);
if (!(pdpe & PG_PRESENT_MASK)) {
goto do_fault;
@@ -835,7 +837,7 @@ int x86_cpu_handle_mmu_fault(CPUState *cs, vaddr addr,
{
/* XXX: load them when cr3 is loaded ? */
pdpe_addr = ((env->cr[3] & ~0x1f) + ((addr >> 27) & 0x18)) &
- env->a20_mask;
+ a20_mask;
pdpe = x86_ldq_phys(cs, pdpe_addr);
if (!(pdpe & PG_PRESENT_MASK)) {
goto do_fault;
@@ -848,7 +850,7 @@ int x86_cpu_handle_mmu_fault(CPUState *cs, vaddr addr,
}
pde_addr = ((pdpe & PG_ADDRESS_MASK) + (((addr >> 21) & 0x1ff) << 3)) &
- env->a20_mask;
+ a20_mask;
pde = x86_ldq_phys(cs, pde_addr);
if (!(pde & PG_PRESENT_MASK)) {
goto do_fault;
@@ -870,7 +872,7 @@ int x86_cpu_handle_mmu_fault(CPUState *cs, vaddr addr,
x86_stl_phys_notdirty(cs, pde_addr, pde);
}
pte_addr = ((pde & PG_ADDRESS_MASK) + (((addr >> 12) & 0x1ff) << 3)) &
- env->a20_mask;
+ a20_mask;
pte = x86_ldq_phys(cs, pte_addr);
if (!(pte & PG_PRESENT_MASK)) {
goto do_fault;
@@ -886,7 +888,7 @@ int x86_cpu_handle_mmu_fault(CPUState *cs, vaddr addr,
/* page directory entry */
pde_addr = ((env->cr[3] & ~0xfff) + ((addr >> 20) & 0xffc)) &
- env->a20_mask;
+ a20_mask;
pde = x86_ldl_phys(cs, pde_addr);
if (!(pde & PG_PRESENT_MASK)) {
goto do_fault;
@@ -913,7 +915,7 @@ int x86_cpu_handle_mmu_fault(CPUState *cs, vaddr addr,
/* page directory entry */
pte_addr = ((pde & ~0xfff) + ((addr >> 10) & 0xffc)) &
- env->a20_mask;
+ a20_mask;
pte = x86_ldl_phys(cs, pte_addr);
if (!(pte & PG_PRESENT_MASK)) {
goto do_fault;
@@ -992,7 +994,7 @@ do_check_protect_pse36:
}
do_mapping:
- pte = pte & env->a20_mask;
+ pte = pte & a20_mask;
/* align to page_size */
pte &= PG_ADDRESS_MASK & ~(page_size - 1);
@@ -1039,11 +1041,13 @@ hwaddr x86_cpu_get_phys_page_debug(CPUState *cs, vaddr addr)
CPUX86State *env = &cpu->env;
target_ulong pde_addr, pte_addr;
uint64_t pte;
+ int32_t a20_mask;
uint32_t page_offset;
int page_size;
+ a20_mask = x86_get_a20_mask(env);
if (!(env->cr[0] & CR0_PG_MASK)) {
- pte = addr & env->a20_mask;
+ pte = addr & a20_mask;
page_size = 4096;
} else if (env->cr[4] & CR4_PAE_MASK) {
target_ulong pdpe_addr;
@@ -1064,7 +1068,7 @@ hwaddr x86_cpu_get_phys_page_debug(CPUState *cs, vaddr addr)
if (la57) {
pml5e_addr = ((env->cr[3] & ~0xfff) +
- (((addr >> 48) & 0x1ff) << 3)) & env->a20_mask;
+ (((addr >> 48) & 0x1ff) << 3)) & a20_mask;
pml5e = x86_ldq_phys(cs, pml5e_addr);
if (!(pml5e & PG_PRESENT_MASK)) {
return -1;
@@ -1074,13 +1078,13 @@ hwaddr x86_cpu_get_phys_page_debug(CPUState *cs, vaddr addr)
}
pml4e_addr = ((pml5e & PG_ADDRESS_MASK) +
- (((addr >> 39) & 0x1ff) << 3)) & env->a20_mask;
+ (((addr >> 39) & 0x1ff) << 3)) & a20_mask;
pml4e = x86_ldq_phys(cs, pml4e_addr);
if (!(pml4e & PG_PRESENT_MASK)) {
return -1;
}
pdpe_addr = ((pml4e & PG_ADDRESS_MASK) +
- (((addr >> 30) & 0x1ff) << 3)) & env->a20_mask;
+ (((addr >> 30) & 0x1ff) << 3)) & a20_mask;
pdpe = x86_ldq_phys(cs, pdpe_addr);
if (!(pdpe & PG_PRESENT_MASK)) {
return -1;
@@ -1095,14 +1099,14 @@ hwaddr x86_cpu_get_phys_page_debug(CPUState *cs, vaddr addr)
#endif
{
pdpe_addr = ((env->cr[3] & ~0x1f) + ((addr >> 27) & 0x18)) &
- env->a20_mask;
+ a20_mask;
pdpe = x86_ldq_phys(cs, pdpe_addr);
if (!(pdpe & PG_PRESENT_MASK))
return -1;
}
pde_addr = ((pdpe & PG_ADDRESS_MASK) +
- (((addr >> 21) & 0x1ff) << 3)) & env->a20_mask;
+ (((addr >> 21) & 0x1ff) << 3)) & a20_mask;
pde = x86_ldq_phys(cs, pde_addr);
if (!(pde & PG_PRESENT_MASK)) {
return -1;
@@ -1114,7 +1118,7 @@ hwaddr x86_cpu_get_phys_page_debug(CPUState *cs, vaddr addr)
} else {
/* 4 KB page */
pte_addr = ((pde & PG_ADDRESS_MASK) +
- (((addr >> 12) & 0x1ff) << 3)) & env->a20_mask;
+ (((addr >> 12) & 0x1ff) << 3)) & a20_mask;
page_size = 4096;
pte = x86_ldq_phys(cs, pte_addr);
}
@@ -1125,7 +1129,7 @@ hwaddr x86_cpu_get_phys_page_debug(CPUState *cs, vaddr addr)
uint32_t pde;
/* page directory entry */
- pde_addr = ((env->cr[3] & ~0xfff) + ((addr >> 20) & 0xffc)) & env->a20_mask;
+ pde_addr = ((env->cr[3] & ~0xfff) + ((addr >> 20) & 0xffc)) & a20_mask;
pde = x86_ldl_phys(cs, pde_addr);
if (!(pde & PG_PRESENT_MASK))
return -1;
@@ -1134,14 +1138,14 @@ hwaddr x86_cpu_get_phys_page_debug(CPUState *cs, vaddr addr)
page_size = 4096 * 1024;
} else {
/* page directory entry */
- pte_addr = ((pde & ~0xfff) + ((addr >> 10) & 0xffc)) & env->a20_mask;
+ pte_addr = ((pde & ~0xfff) + ((addr >> 10) & 0xffc)) & a20_mask;
pte = x86_ldl_phys(cs, pte_addr);
if (!(pte & PG_PRESENT_MASK)) {
return -1;
}
page_size = 4096;
}
- pte = pte & env->a20_mask;
+ pte = pte & a20_mask;
}
#ifdef TARGET_X86_64
--
1.8.3.1
^ permalink raw reply related [flat|nested] 44+ messages in thread
* [Qemu-devel] [PULL 20/33] target/i386: use multiple CPU AddressSpaces
2017-06-01 12:41 [Qemu-devel] [PULL 00/33] Misc patches for 2017-06-01 Paolo Bonzini
` (18 preceding siblings ...)
2017-06-01 12:41 ` [Qemu-devel] [PULL 19/33] target/i386: enable A20 automatically in system management mode Paolo Bonzini
@ 2017-06-01 12:41 ` Paolo Bonzini
2017-06-01 12:41 ` [Qemu-devel] [PULL 21/33] i386: fix read/write cr with icount option Paolo Bonzini
` (14 subsequent siblings)
34 siblings, 0 replies; 44+ messages in thread
From: Paolo Bonzini @ 2017-06-01 12:41 UTC (permalink / raw)
To: qemu-devel
This speeds up SMM switches. Later on it may remove the need to take
the BQL, and it may also allow to reuse code between TCG and KVM.
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
---
target/i386/cpu.c | 15 +++++++++-----
target/i386/cpu.h | 11 +++++++++-
target/i386/helper.c | 54 ++++++++++++++++++++++++------------------------
target/i386/machine.c | 4 ----
target/i386/smm_helper.c | 18 ----------------
5 files changed, 47 insertions(+), 55 deletions(-)
diff --git a/target/i386/cpu.c b/target/i386/cpu.c
index a41d595..a638832 100644
--- a/target/i386/cpu.c
+++ b/target/i386/cpu.c
@@ -3239,7 +3239,7 @@ static void x86_cpu_machine_done(Notifier *n, void *unused)
cpu->smram = g_new(MemoryRegion, 1);
memory_region_init_alias(cpu->smram, OBJECT(cpu), "smram",
smram, 0, 1ull << 32);
- memory_region_set_enabled(cpu->smram, false);
+ memory_region_set_enabled(cpu->smram, true);
memory_region_add_subregion_overlap(cpu->cpu_as_root, 0, cpu->smram, 1);
}
}
@@ -3619,7 +3619,9 @@ static void x86_cpu_realizefn(DeviceState *dev, Error **errp)
#ifndef CONFIG_USER_ONLY
if (tcg_enabled()) {
- AddressSpace *newas = g_new(AddressSpace, 1);
+ AddressSpace *as_normal = address_space_init_shareable(cs->memory,
+ "cpu-memory");
+ AddressSpace *as_smm = g_new(AddressSpace, 1);
cpu->cpu_as_mem = g_new(MemoryRegion, 1);
cpu->cpu_as_root = g_new(MemoryRegion, 1);
@@ -3635,9 +3637,11 @@ static void x86_cpu_realizefn(DeviceState *dev, Error **errp)
get_system_memory(), 0, ~0ull);
memory_region_add_subregion_overlap(cpu->cpu_as_root, 0, cpu->cpu_as_mem, 0);
memory_region_set_enabled(cpu->cpu_as_mem, true);
- address_space_init(newas, cpu->cpu_as_root, "CPU");
- cs->num_ases = 1;
- cpu_address_space_init(cs, newas, 0);
+ address_space_init(as_smm, cpu->cpu_as_root, "CPU");
+
+ cs->num_ases = 2;
+ cpu_address_space_init(cs, as_normal, 0);
+ cpu_address_space_init(cs, as_smm, 1);
/* ... SMRAM with higher priority, linked from /machine/smram. */
cpu->machine_done.notify = x86_cpu_machine_done;
@@ -4053,6 +4057,7 @@ static void x86_cpu_common_class_init(ObjectClass *oc, void *data)
#ifdef CONFIG_USER_ONLY
cc->handle_mmu_fault = x86_cpu_handle_mmu_fault;
#else
+ cc->asidx_from_attrs = x86_asidx_from_attrs;
cc->get_memory_mapping = x86_cpu_get_memory_mapping;
cc->get_phys_page_debug = x86_cpu_get_phys_page_debug;
cc->write_elf64_note = x86_cpu_write_elf64_note;
diff --git a/target/i386/cpu.h b/target/i386/cpu.h
index 32a3a0c..c2e081c 100644
--- a/target/i386/cpu.h
+++ b/target/i386/cpu.h
@@ -1450,6 +1450,16 @@ int x86_cpu_handle_mmu_fault(CPUState *cpu, vaddr addr,
void x86_cpu_set_a20(X86CPU *cpu, int a20_state);
#ifndef CONFIG_USER_ONLY
+static inline int x86_asidx_from_attrs(CPUState *cs, MemTxAttrs attrs)
+{
+ return !!attrs.secure;
+}
+
+static inline AddressSpace *cpu_addressspace(CPUState *cs, MemTxAttrs attrs)
+{
+ return cpu_get_address_space(cs, cpu_asidx_from_attrs(cs, attrs));
+}
+
uint8_t x86_ldub_phys(CPUState *cs, hwaddr addr);
uint32_t x86_lduw_phys(CPUState *cs, hwaddr addr);
uint32_t x86_ldl_phys(CPUState *cs, hwaddr addr);
@@ -1652,7 +1662,6 @@ void do_interrupt_x86_hardirq(CPUX86State *env, int intno, int is_hw);
/* smm_helper.c */
void do_smm_enter(X86CPU *cpu);
-void cpu_smm_update(X86CPU *cpu);
/* apic.c */
void cpu_report_tpr_access(CPUX86State *env, TPRAccess access);
diff --git a/target/i386/helper.c b/target/i386/helper.c
index 6c16e7c..d0daa1f 100644
--- a/target/i386/helper.c
+++ b/target/i386/helper.c
@@ -1403,89 +1403,89 @@ uint8_t x86_ldub_phys(CPUState *cs, hwaddr addr)
{
X86CPU *cpu = X86_CPU(cs);
CPUX86State *env = &cpu->env;
+ MemTxAttrs attrs = cpu_get_mem_attrs(env);
+ AddressSpace *as = cpu_addressspace(cs, attrs);
- return address_space_ldub(cs->as, addr,
- cpu_get_mem_attrs(env),
- NULL);
+ return address_space_ldub(as, addr, attrs, NULL);
}
uint32_t x86_lduw_phys(CPUState *cs, hwaddr addr)
{
X86CPU *cpu = X86_CPU(cs);
CPUX86State *env = &cpu->env;
+ MemTxAttrs attrs = cpu_get_mem_attrs(env);
+ AddressSpace *as = cpu_addressspace(cs, attrs);
- return address_space_lduw(cs->as, addr,
- cpu_get_mem_attrs(env),
- NULL);
+ return address_space_lduw(as, addr, attrs, NULL);
}
uint32_t x86_ldl_phys(CPUState *cs, hwaddr addr)
{
X86CPU *cpu = X86_CPU(cs);
CPUX86State *env = &cpu->env;
+ MemTxAttrs attrs = cpu_get_mem_attrs(env);
+ AddressSpace *as = cpu_addressspace(cs, attrs);
- return address_space_ldl(cs->as, addr,
- cpu_get_mem_attrs(env),
- NULL);
+ return address_space_ldl(as, addr, attrs, NULL);
}
uint64_t x86_ldq_phys(CPUState *cs, hwaddr addr)
{
X86CPU *cpu = X86_CPU(cs);
CPUX86State *env = &cpu->env;
+ MemTxAttrs attrs = cpu_get_mem_attrs(env);
+ AddressSpace *as = cpu_addressspace(cs, attrs);
- return address_space_ldq(cs->as, addr,
- cpu_get_mem_attrs(env),
- NULL);
+ return address_space_ldq(as, addr, attrs, NULL);
}
void x86_stb_phys(CPUState *cs, hwaddr addr, uint8_t val)
{
X86CPU *cpu = X86_CPU(cs);
CPUX86State *env = &cpu->env;
+ MemTxAttrs attrs = cpu_get_mem_attrs(env);
+ AddressSpace *as = cpu_addressspace(cs, attrs);
- address_space_stb(cs->as, addr, val,
- cpu_get_mem_attrs(env),
- NULL);
+ address_space_stb(as, addr, val, attrs, NULL);
}
void x86_stl_phys_notdirty(CPUState *cs, hwaddr addr, uint32_t val)
{
X86CPU *cpu = X86_CPU(cs);
CPUX86State *env = &cpu->env;
+ MemTxAttrs attrs = cpu_get_mem_attrs(env);
+ AddressSpace *as = cpu_addressspace(cs, attrs);
- address_space_stl_notdirty(cs->as, addr, val,
- cpu_get_mem_attrs(env),
- NULL);
+ address_space_stl_notdirty(as, addr, val, attrs, NULL);
}
void x86_stw_phys(CPUState *cs, hwaddr addr, uint32_t val)
{
X86CPU *cpu = X86_CPU(cs);
CPUX86State *env = &cpu->env;
+ MemTxAttrs attrs = cpu_get_mem_attrs(env);
+ AddressSpace *as = cpu_addressspace(cs, attrs);
- address_space_stw(cs->as, addr, val,
- cpu_get_mem_attrs(env),
- NULL);
+ address_space_stw(as, addr, val, attrs, NULL);
}
void x86_stl_phys(CPUState *cs, hwaddr addr, uint32_t val)
{
X86CPU *cpu = X86_CPU(cs);
CPUX86State *env = &cpu->env;
+ MemTxAttrs attrs = cpu_get_mem_attrs(env);
+ AddressSpace *as = cpu_addressspace(cs, attrs);
- address_space_stl(cs->as, addr, val,
- cpu_get_mem_attrs(env),
- NULL);
+ address_space_stl(as, addr, val, attrs, NULL);
}
void x86_stq_phys(CPUState *cs, hwaddr addr, uint64_t val)
{
X86CPU *cpu = X86_CPU(cs);
CPUX86State *env = &cpu->env;
+ MemTxAttrs attrs = cpu_get_mem_attrs(env);
+ AddressSpace *as = cpu_addressspace(cs, attrs);
- address_space_stq(cs->as, addr, val,
- cpu_get_mem_attrs(env),
- NULL);
+ address_space_stq(as, addr, val, attrs, NULL);
}
#endif
diff --git a/target/i386/machine.c b/target/i386/machine.c
index 3cb2729..8c7a822 100644
--- a/target/i386/machine.c
+++ b/target/i386/machine.c
@@ -274,10 +274,6 @@ static int cpu_post_load(void *opaque, int version_id)
cpu_x86_update_dr7(env, dr7);
}
tlb_flush(cs);
-
- if (tcg_enabled()) {
- cpu_smm_update(cpu);
- }
return 0;
}
diff --git a/target/i386/smm_helper.c b/target/i386/smm_helper.c
index f051a77..90621e5 100644
--- a/target/i386/smm_helper.c
+++ b/target/i386/smm_helper.c
@@ -43,19 +43,6 @@ void helper_rsm(CPUX86State *env)
#define SMM_REVISION_ID 0x00020000
#endif
-/* Called with iothread lock taken */
-void cpu_smm_update(X86CPU *cpu)
-{
- CPUX86State *env = &cpu->env;
- bool smm_enabled = (env->hflags & HF_SMM_MASK);
-
- g_assert(qemu_mutex_iothread_locked());
-
- if (cpu->smram) {
- memory_region_set_enabled(cpu->smram, smm_enabled);
- }
-}
-
void do_smm_enter(X86CPU *cpu)
{
CPUX86State *env = &cpu->env;
@@ -73,7 +60,6 @@ void do_smm_enter(X86CPU *cpu)
} else {
env->hflags2 |= HF2_NMI_MASK;
}
- cpu_smm_update(cpu);
sm_state = env->smbase + 0x8000;
@@ -338,10 +324,6 @@ void helper_rsm(CPUX86State *env)
env->hflags2 &= ~HF2_SMM_INSIDE_NMI_MASK;
env->hflags &= ~HF_SMM_MASK;
- qemu_mutex_lock_iothread();
- cpu_smm_update(cpu);
- qemu_mutex_unlock_iothread();
-
qemu_log_mask(CPU_LOG_INT, "SMM: after RSM\n");
log_cpu_state_mask(CPU_LOG_INT, CPU(cpu), CPU_DUMP_CCOP);
}
--
1.8.3.1
^ permalink raw reply related [flat|nested] 44+ messages in thread
* [Qemu-devel] [PULL 21/33] i386: fix read/write cr with icount option
2017-06-01 12:41 [Qemu-devel] [PULL 00/33] Misc patches for 2017-06-01 Paolo Bonzini
` (19 preceding siblings ...)
2017-06-01 12:41 ` [Qemu-devel] [PULL 20/33] target/i386: use multiple CPU AddressSpaces Paolo Bonzini
@ 2017-06-01 12:41 ` Paolo Bonzini
2017-06-01 12:41 ` [Qemu-devel] [PULL 22/33] sockets: improve error reporting if UNIX socket path is too long Paolo Bonzini
` (13 subsequent siblings)
34 siblings, 0 replies; 44+ messages in thread
From: Paolo Bonzini @ 2017-06-01 12:41 UTC (permalink / raw)
To: qemu-devel; +Cc: Mihail Abakumov
From: Mihail Abakumov <mikhail.abakumov@ispras.ru>
Running Windows with icount causes a crash in instruction of write cr.
This patch fixes it.
Reading and writing cr cause an icount read because there are called
cpu_get_apic_tpr and cpu_set_apic_tpr functions. So, there is need
gen_io_start()/gen_io_end() calls.
Signed-off-by: Mihail Abakumov <mikhail.abakumov@ispras.ru>
Message-Id: <ffb376034ff184f2fcbe93d5317d9e76@ispras.ru>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
---
target/i386/translate.c | 12 ++++++++++++
1 file changed, 12 insertions(+)
diff --git a/target/i386/translate.c b/target/i386/translate.c
index 1d1372f..39912f3 100644
--- a/target/i386/translate.c
+++ b/target/i386/translate.c
@@ -7914,14 +7914,26 @@ static target_ulong disas_insn(CPUX86State *env, DisasContext *s,
gen_update_cc_op(s);
gen_jmp_im(pc_start - s->cs_base);
if (b & 2) {
+ if (s->tb->cflags & CF_USE_ICOUNT) {
+ gen_io_start();
+ }
gen_op_mov_v_reg(ot, cpu_T0, rm);
gen_helper_write_crN(cpu_env, tcg_const_i32(reg),
cpu_T0);
+ if (s->tb->cflags & CF_USE_ICOUNT) {
+ gen_io_end();
+ }
gen_jmp_im(s->pc - s->cs_base);
gen_eob(s);
} else {
+ if (s->tb->cflags & CF_USE_ICOUNT) {
+ gen_io_start();
+ }
gen_helper_read_crN(cpu_T0, cpu_env, tcg_const_i32(reg));
gen_op_mov_reg_v(ot, rm, cpu_T0);
+ if (s->tb->cflags & CF_USE_ICOUNT) {
+ gen_io_end();
+ }
}
break;
default:
--
1.8.3.1
^ permalink raw reply related [flat|nested] 44+ messages in thread
* [Qemu-devel] [PULL 22/33] sockets: improve error reporting if UNIX socket path is too long
2017-06-01 12:41 [Qemu-devel] [PULL 00/33] Misc patches for 2017-06-01 Paolo Bonzini
` (20 preceding siblings ...)
2017-06-01 12:41 ` [Qemu-devel] [PULL 21/33] i386: fix read/write cr with icount option Paolo Bonzini
@ 2017-06-01 12:41 ` Paolo Bonzini
2017-06-13 16:10 ` Peter Maydell
2017-06-01 12:41 ` [Qemu-devel] [PULL 23/33] exec: fix address_space_get_iotlb_entry page mask Paolo Bonzini
` (12 subsequent siblings)
34 siblings, 1 reply; 44+ messages in thread
From: Paolo Bonzini @ 2017-06-01 12:41 UTC (permalink / raw)
To: qemu-devel
From: "Daniel P. Berrange" <berrange@redhat.com>
The 'struct sockaddr_un' only allows 108 bytes for the socket
path.
If the user supplies a path, QEMU uses snprintf() to silently
truncate it when too long. This is undesirable because the user
will then be unable to connect to the path they asked for.
If the user doesn't supply a path, QEMU builds one based on
TMPDIR, but if that leads to an overlong path, it mistakenly
uses error_setg_errno() with a stale errno value, because
snprintf() does not set errno on truncation.
In solving this the code needed some refactoring to ensure we
don't pass 'un.sun_path' directly to any APIs which expect
NUL-terminated strings, because the path is not required to
be terminated.
Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
Message-Id: <20170525155300.22743-1-berrange@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
---
util/qemu-sockets.c | 68 ++++++++++++++++++++++++++++++++++++-----------------
1 file changed, 46 insertions(+), 22 deletions(-)
diff --git a/util/qemu-sockets.c b/util/qemu-sockets.c
index d8183f7..dfaf4e1 100644
--- a/util/qemu-sockets.c
+++ b/util/qemu-sockets.c
@@ -845,6 +845,8 @@ static int unix_listen_saddr(UnixSocketAddress *saddr,
{
struct sockaddr_un un;
int sock, fd;
+ char *pathbuf = NULL;
+ const char *path;
sock = qemu_socket(PF_UNIX, SOCK_STREAM, 0);
if (sock < 0) {
@@ -852,20 +854,22 @@ static int unix_listen_saddr(UnixSocketAddress *saddr,
return -1;
}
- memset(&un, 0, sizeof(un));
- un.sun_family = AF_UNIX;
- if (saddr->path && strlen(saddr->path)) {
- snprintf(un.sun_path, sizeof(un.sun_path), "%s", saddr->path);
+ if (saddr->path && saddr->path[0]) {
+ path = saddr->path;
} else {
const char *tmpdir = getenv("TMPDIR");
tmpdir = tmpdir ? tmpdir : "/tmp";
- if (snprintf(un.sun_path, sizeof(un.sun_path), "%s/qemu-socket-XXXXXX",
- tmpdir) >= sizeof(un.sun_path)) {
- error_setg_errno(errp, errno,
- "TMPDIR environment variable (%s) too large", tmpdir);
- goto err;
- }
+ path = pathbuf = g_strdup_printf("%s/qemu-socket-XXXXXX", tmpdir);
+ }
+ if (strlen(path) > sizeof(un.sun_path)) {
+ error_setg(errp, "UNIX socket path '%s' is too long", path);
+ error_append_hint(errp, "Path must be less than %zu bytes\n",
+ sizeof(un.sun_path));
+ goto err;
+ }
+
+ if (pathbuf != NULL) {
/*
* This dummy fd usage silences the mktemp() unsecure warning.
* Using mkstemp() doesn't make things more secure here
@@ -873,24 +877,25 @@ static int unix_listen_saddr(UnixSocketAddress *saddr,
* to unlink first and thus re-open the race window. The
* worst case possible is bind() failing, i.e. a DoS attack.
*/
- fd = mkstemp(un.sun_path);
+ fd = mkstemp(pathbuf);
if (fd < 0) {
error_setg_errno(errp, errno,
- "Failed to make a temporary socket name in %s", tmpdir);
+ "Failed to make a temporary socket %s", pathbuf);
goto err;
}
close(fd);
- if (update_addr) {
- g_free(saddr->path);
- saddr->path = g_strdup(un.sun_path);
- }
}
- if (unlink(un.sun_path) < 0 && errno != ENOENT) {
+ if (unlink(path) < 0 && errno != ENOENT) {
error_setg_errno(errp, errno,
- "Failed to unlink socket %s", un.sun_path);
+ "Failed to unlink socket %s", path);
goto err;
}
+
+ memset(&un, 0, sizeof(un));
+ un.sun_family = AF_UNIX;
+ strncpy(un.sun_path, path, sizeof(un.sun_path));
+
if (bind(sock, (struct sockaddr*) &un, sizeof(un)) < 0) {
error_setg_errno(errp, errno, "Failed to bind socket to %s", un.sun_path);
goto err;
@@ -900,9 +905,16 @@ static int unix_listen_saddr(UnixSocketAddress *saddr,
goto err;
}
+ if (update_addr && pathbuf) {
+ g_free(saddr->path);
+ saddr->path = pathbuf;
+ } else {
+ g_free(pathbuf);
+ }
return sock;
err:
+ g_free(pathbuf);
closesocket(sock);
return -1;
}
@@ -932,9 +944,16 @@ static int unix_connect_saddr(UnixSocketAddress *saddr,
qemu_set_nonblock(sock);
}
+ if (strlen(saddr->path) > sizeof(un.sun_path)) {
+ error_setg(errp, "UNIX socket path '%s' is too long", saddr->path);
+ error_append_hint(errp, "Path must be less than %zu bytes\n",
+ sizeof(un.sun_path));
+ goto err;
+ }
+
memset(&un, 0, sizeof(un));
un.sun_family = AF_UNIX;
- snprintf(un.sun_path, sizeof(un.sun_path), "%s", saddr->path);
+ strncpy(un.sun_path, saddr->path, sizeof(un.sun_path));
/* connect to peer */
do {
@@ -956,13 +975,18 @@ static int unix_connect_saddr(UnixSocketAddress *saddr,
}
if (rc < 0) {
- error_setg_errno(errp, -rc, "Failed to connect socket");
- close(sock);
- sock = -1;
+ error_setg_errno(errp, -rc, "Failed to connect socket %s",
+ saddr->path);
+ goto err;
}
g_free(connect_state);
return sock;
+
+ err:
+ close(sock);
+ g_free(connect_state);
+ return -1;
}
#else
--
1.8.3.1
^ permalink raw reply related [flat|nested] 44+ messages in thread
* [Qemu-devel] [PULL 23/33] exec: fix address_space_get_iotlb_entry page mask
2017-06-01 12:41 [Qemu-devel] [PULL 00/33] Misc patches for 2017-06-01 Paolo Bonzini
` (21 preceding siblings ...)
2017-06-01 12:41 ` [Qemu-devel] [PULL 22/33] sockets: improve error reporting if UNIX socket path is too long Paolo Bonzini
@ 2017-06-01 12:41 ` Paolo Bonzini
2017-06-02 9:59 ` Peter Xu
2017-06-01 12:41 ` [Qemu-devel] [PULL 24/33] nbd: Fully initialize client in case of failed negotiation Paolo Bonzini
` (11 subsequent siblings)
34 siblings, 1 reply; 44+ messages in thread
From: Paolo Bonzini @ 2017-06-01 12:41 UTC (permalink / raw)
To: qemu-devel; +Cc: Peter Xu
From: Peter Xu <peterx@redhat.com>
The IOTLB that it returned didn't guarantee that page_mask is indeed a
so-called page mask. That won't affect current usage since now only
vhost is using it (vhost API allows arbitary IOTLB range). However we
have IOTLB scemantic and we should best follow it. This patch fixes this
issue to make sure the page_mask is always a valid page mask.
Fixes: a764040 ("exec: abstract address_space_do_translate()")
Signed-off-by: Peter Xu <peterx@redhat.com>
Message-Id: <1496212378-22605-1-git-send-email-peterx@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
---
exec.c | 14 ++++++--------
1 file changed, 6 insertions(+), 8 deletions(-)
diff --git a/exec.c b/exec.c
index 29633cd..22b8f0c 100644
--- a/exec.c
+++ b/exec.c
@@ -528,16 +528,14 @@ IOMMUTLBEntry address_space_get_iotlb_entry(AddressSpace *as, hwaddr addr,
section.offset_within_region;
if (plen == (hwaddr)-1) {
- /*
- * We use default page size here. Logically it only happens
- * for identity mappings.
- */
- plen = TARGET_PAGE_SIZE;
+ /* If not specified during translation, use default mask */
+ plen = TARGET_PAGE_MASK;
+ } else {
+ /* Make it a valid page mask */
+ assert(plen);
+ plen = pow2floor(plen) - 1;
}
- /* Convert to address mask */
- plen -= 1;
-
return (IOMMUTLBEntry) {
.target_as = section.address_space,
.iova = addr & ~plen,
--
1.8.3.1
^ permalink raw reply related [flat|nested] 44+ messages in thread
* [Qemu-devel] [PULL 24/33] nbd: Fully initialize client in case of failed negotiation
2017-06-01 12:41 [Qemu-devel] [PULL 00/33] Misc patches for 2017-06-01 Paolo Bonzini
` (22 preceding siblings ...)
2017-06-01 12:41 ` [Qemu-devel] [PULL 23/33] exec: fix address_space_get_iotlb_entry page mask Paolo Bonzini
@ 2017-06-01 12:41 ` Paolo Bonzini
2017-06-01 15:15 ` Eric Blake
2017-06-01 12:41 ` [Qemu-devel] [PULL 25/33] qtest: add rtc periodic timer test Paolo Bonzini
` (10 subsequent siblings)
34 siblings, 1 reply; 44+ messages in thread
From: Paolo Bonzini @ 2017-06-01 12:41 UTC (permalink / raw)
To: qemu-devel
From: Eric Blake <eblake@redhat.com>
If a non-NBD client connects to qemu-nbd, we would end up with
a SIGSEGV in nbd_cilent_put() because we were trying to
unregister the client's association to the export, even though
we skipped inserting the client into that list. Easy trigger
in two terminals:
$ qemu-nbd -p 30001 --format=raw file
$ nmap 127.0.0.1 -p 30001
nmap claims that it thinks it connected to a pago-services1
server (which probably means nmap could be updated to learn the
NBD protocol and give a more accurate diagnosis of the open
port - but that's not our problem), then terminates immediately,
so our call to nbd_negotiate() fails. The fix is to reorder
nbd_co_client_start() to ensure that all initialization occurs
before we ever try talking to a client in nbd_negotiate(), so
that the teardown sequence on negotiation failure doesn't fault
while dereferencing a half-initialized object.
While debugging this, I also noticed that nbd_update_server_watch()
called by nbd_client_closed() was still adding a channel to accept
the next client, even when the state was no longer RUNNING. That
is fixed by making nbd_can_accept() pay attention to the current
state.
Fixes: https://bugzilla.redhat.com/show_bug.cgi?id=1451614
Signed-off-by: Eric Blake <eblake@redhat.com>
Message-Id: <20170527030421.28366-1-eblake@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
---
nbd/server.c | 8 +++-----
qemu-nbd.c | 2 +-
2 files changed, 4 insertions(+), 6 deletions(-)
diff --git a/nbd/server.c b/nbd/server.c
index ee59e5d..49b55f6 100644
--- a/nbd/server.c
+++ b/nbd/server.c
@@ -1358,16 +1358,14 @@ static coroutine_fn void nbd_co_client_start(void *opaque)
if (exp) {
nbd_export_get(exp);
+ QTAILQ_INSERT_TAIL(&exp->clients, client, next);
}
+ qemu_co_mutex_init(&client->send_lock);
+
if (nbd_negotiate(data)) {
client_close(client);
goto out;
}
- qemu_co_mutex_init(&client->send_lock);
-
- if (exp) {
- QTAILQ_INSERT_TAIL(&exp->clients, client, next);
- }
nbd_client_receive_next_request(client);
diff --git a/qemu-nbd.c b/qemu-nbd.c
index f60842f..651f85e 100644
--- a/qemu-nbd.c
+++ b/qemu-nbd.c
@@ -325,7 +325,7 @@ out:
static int nbd_can_accept(void)
{
- return nb_fds < shared;
+ return state == RUNNING && nb_fds < shared;
}
static void nbd_export_closed(NBDExport *exp)
--
1.8.3.1
^ permalink raw reply related [flat|nested] 44+ messages in thread
* [Qemu-devel] [PULL 25/33] qtest: add rtc periodic timer test
2017-06-01 12:41 [Qemu-devel] [PULL 00/33] Misc patches for 2017-06-01 Paolo Bonzini
` (23 preceding siblings ...)
2017-06-01 12:41 ` [Qemu-devel] [PULL 24/33] nbd: Fully initialize client in case of failed negotiation Paolo Bonzini
@ 2017-06-01 12:41 ` Paolo Bonzini
2017-06-01 12:41 ` [Qemu-devel] [PULL 26/33] kvmclock: update system_time_msr address forcibly Paolo Bonzini
` (9 subsequent siblings)
34 siblings, 0 replies; 44+ messages in thread
From: Paolo Bonzini @ 2017-06-01 12:41 UTC (permalink / raw)
To: qemu-devel; +Cc: Xiao Guangrong
From: Xiao Guangrong <xiaoguangrong@tencent.com>
It tests the accuracy of rtc periodic timer which is recently
improved & fixed by commit 7ffcb539a3 ("mc146818rtc: precisely count
the clock for periodic timer", 2017-05-19).
Signed-off-by: Xiao Guangrong <xiaoguangrong@tencent.com>
Message-Id: <20170527025301.23499-1-xiaoguangrong@tencent.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
---
hw/timer/mc146818rtc.c | 15 +++----------
include/hw/timer/mc146818rtc.h | 19 ++++++++++++++++
tests/rtc-test.c | 49 ++++++++++++++++++++++++++++++++++++++++++
3 files changed, 71 insertions(+), 12 deletions(-)
diff --git a/hw/timer/mc146818rtc.c b/hw/timer/mc146818rtc.c
index 542cd09..1b8d3d7 100644
--- a/hw/timer/mc146818rtc.c
+++ b/hw/timer/mc146818rtc.c
@@ -120,7 +120,7 @@ static void rtc_coalesced_timer_update(RTCState *s)
/* divide each RTC interval to 2 - 8 smaller intervals */
int c = MIN(s->irq_coalesced, 7) + 1;
int64_t next_clock = qemu_clock_get_ns(rtc_clock) +
- muldiv64(s->period / c, NANOSECONDS_PER_SECOND, RTC_CLOCK_RATE);
+ periodic_clock_to_ns(s->period / c);
timer_mod(s->coalesced_timer, next_clock);
}
}
@@ -178,16 +178,8 @@ static uint32_t rtc_periodic_clock_ticks(RTCState *s)
}
period_code = s->cmos_data[RTC_REG_A] & 0x0f;
- if (!period_code) {
- return 0;
- }
-
- if (period_code <= 2) {
- period_code += 7;
- }
- /* period in 32 Khz cycles */
- return 1 << (period_code - 1);
+ return periodic_period_to_clock(period_code);
}
/*
@@ -260,8 +252,7 @@ periodic_timer_update(RTCState *s, int64_t current_time, uint32_t old_period)
assert(lost_clock >= 0 && lost_clock <= period);
next_irq_clock = cur_clock + period - lost_clock;
- s->next_periodic_time = muldiv64(next_irq_clock, NANOSECONDS_PER_SECOND,
- RTC_CLOCK_RATE) + 1;
+ s->next_periodic_time = periodic_clock_to_ns(next_irq_clock) + 1;
timer_mod(s->periodic_timer, s->next_periodic_time);
} else {
s->irq_coalesced = 0;
diff --git a/include/hw/timer/mc146818rtc.h b/include/hw/timer/mc146818rtc.h
index 7c8e64b..f23e734 100644
--- a/include/hw/timer/mc146818rtc.h
+++ b/include/hw/timer/mc146818rtc.h
@@ -10,4 +10,23 @@ ISADevice *rtc_init(ISABus *bus, int base_year, qemu_irq intercept_irq);
void rtc_set_memory(ISADevice *dev, int addr, int val);
int rtc_get_memory(ISADevice *dev, int addr);
+static inline uint32_t periodic_period_to_clock(int period_code)
+{
+ if (!period_code) {
+ return 0;
+ }
+
+ if (period_code <= 2) {
+ period_code += 7;
+ }
+ /* period in 32 Khz cycles */
+ return 1 << (period_code - 1);
+}
+
+#define RTC_CLOCK_RATE 32768
+
+static inline int64_t periodic_clock_to_ns(int64_t clocks)
+{
+ return muldiv64(clocks, NANOSECONDS_PER_SECOND, RTC_CLOCK_RATE);
+}
#endif /* MC146818RTC_H */
diff --git a/tests/rtc-test.c b/tests/rtc-test.c
index a086efd..0500686 100644
--- a/tests/rtc-test.c
+++ b/tests/rtc-test.c
@@ -14,6 +14,7 @@
#include "qemu/osdep.h"
#include "libqtest.h"
+#include "hw/timer/mc146818rtc.h"
#include "hw/timer/mc146818rtc_regs.h"
static uint8_t base = 0x70;
@@ -542,6 +543,52 @@ static void register_b_set_flag(void)
g_assert_cmpint(cmos_read(RTC_CENTURY), ==, 0x20);
}
+#define RTC_PERIOD_CODE1 13 /* 8 Hz */
+#define RTC_PERIOD_CODE2 15 /* 2 Hz */
+
+#define RTC_PERIOD_TEST_NR 50
+
+static uint64_t wait_periodic_interrupt(uint64_t real_time)
+{
+ while (!get_irq(RTC_ISA_IRQ)) {
+ real_time = clock_step_next();
+ }
+
+ g_assert((cmos_read(RTC_REG_C) & REG_C_PF) != 0);
+ return real_time;
+}
+
+static void periodic_timer(void)
+{
+ int i;
+ uint64_t period_clocks, period_time, start_time, real_time;
+
+ /* disable all interrupts. */
+ cmos_write(RTC_REG_B, cmos_read(RTC_REG_B) &
+ ~(REG_B_PIE | REG_B_AIE | REG_B_UIE));
+ cmos_write(RTC_REG_A, RTC_PERIOD_CODE1);
+ /* enable periodic interrupt after properly configure the period. */
+ cmos_write(RTC_REG_B, cmos_read(RTC_REG_B) | REG_B_PIE);
+
+ start_time = real_time = clock_step_next();
+
+ for (i = 0; i < RTC_PERIOD_TEST_NR; i++) {
+ cmos_write(RTC_REG_A, RTC_PERIOD_CODE1);
+ real_time = wait_periodic_interrupt(real_time);
+ cmos_write(RTC_REG_A, RTC_PERIOD_CODE2);
+ real_time = wait_periodic_interrupt(real_time);
+ }
+
+ period_clocks = periodic_period_to_clock(RTC_PERIOD_CODE1) +
+ periodic_period_to_clock(RTC_PERIOD_CODE2);
+ period_clocks *= RTC_PERIOD_TEST_NR;
+ period_time = periodic_clock_to_ns(period_clocks);
+
+ real_time -= start_time;
+ g_assert_cmpint(ABS((int64_t)(real_time - period_time)), <=,
+ NANOSECONDS_PER_SECOND * 0.5);
+}
+
int main(int argc, char **argv)
{
QTestState *s = NULL;
@@ -564,6 +611,8 @@ int main(int argc, char **argv)
qtest_add_func("/rtc/set-year/1980", set_year_1980);
qtest_add_func("/rtc/misc/register_b_set_flag", register_b_set_flag);
qtest_add_func("/rtc/misc/fuzz-registers", fuzz_registers);
+ qtest_add_func("/rtc/periodic/interrupt", periodic_timer);
+
ret = g_test_run();
if (s) {
--
1.8.3.1
^ permalink raw reply related [flat|nested] 44+ messages in thread
* [Qemu-devel] [PULL 26/33] kvmclock: update system_time_msr address forcibly
2017-06-01 12:41 [Qemu-devel] [PULL 00/33] Misc patches for 2017-06-01 Paolo Bonzini
` (24 preceding siblings ...)
2017-06-01 12:41 ` [Qemu-devel] [PULL 25/33] qtest: add rtc periodic timer test Paolo Bonzini
@ 2017-06-01 12:41 ` Paolo Bonzini
2017-06-01 12:41 ` [Qemu-devel] [PULL 27/33] linuxboot_dma: compile for i486 Paolo Bonzini
` (8 subsequent siblings)
34 siblings, 0 replies; 44+ messages in thread
From: Paolo Bonzini @ 2017-06-01 12:41 UTC (permalink / raw)
To: qemu-devel; +Cc: Denis Plotnikov
From: Denis Plotnikov <dplotnikov@virtuozzo.com>
Do an update of system_time_msr address every time before reading
the value of tsc_timestamp from guest's kvmclock page.
There is no other code paths which ensure that qemu has an up-to-date
value of system_time_msr. So, force this update on guest's tsc_timestamp
reading.
This bug causes effect on those nested setups which turn off TPR access
interception for L2 guests and that access being intercepted by L0 doesn't
show up in L1.
Linux bootstrap initiate kvmclock before APIC initializing causing TPR access.
That's why on L1 guests, having TPR interception turned on for L2, the effect
of the bug is not revealed.
This patch fixes this problem by making sure it knows the correct
system_time_msr address every time it is needed.
Signed-off-by: Denis Plotnikov <dplotnikov@virtuozzo.com>
Message-Id: <1496054944-25623-1-git-send-email-dplotnikov@virtuozzo.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
---
hw/i386/kvm/clock.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/hw/i386/kvm/clock.c b/hw/i386/kvm/clock.c
index 13eca37..363d1b5 100644
--- a/hw/i386/kvm/clock.c
+++ b/hw/i386/kvm/clock.c
@@ -19,6 +19,7 @@
#include "qemu/host-utils.h"
#include "sysemu/sysemu.h"
#include "sysemu/kvm.h"
+#include "sysemu/hw_accel.h"
#include "kvm_i386.h"
#include "hw/sysbus.h"
#include "hw/kvm/clock.h"
@@ -69,6 +70,8 @@ static uint64_t kvmclock_current_nsec(KVMClockState *s)
uint64_t nsec_hi;
uint64_t nsec;
+ cpu_synchronize_state(cpu);
+
if (!(env->system_time_msr & 1ULL)) {
/* KVM clock not active */
return 0;
--
1.8.3.1
^ permalink raw reply related [flat|nested] 44+ messages in thread
* [Qemu-devel] [PULL 27/33] linuxboot_dma: compile for i486
2017-06-01 12:41 [Qemu-devel] [PULL 00/33] Misc patches for 2017-06-01 Paolo Bonzini
` (25 preceding siblings ...)
2017-06-01 12:41 ` [Qemu-devel] [PULL 26/33] kvmclock: update system_time_msr address forcibly Paolo Bonzini
@ 2017-06-01 12:41 ` Paolo Bonzini
2017-06-01 12:41 ` [Qemu-devel] [PULL 28/33] edu: fix memory leak on msi_broken platforms Paolo Bonzini
` (7 subsequent siblings)
34 siblings, 0 replies; 44+ messages in thread
From: Paolo Bonzini @ 2017-06-01 12:41 UTC (permalink / raw)
To: qemu-devel; +Cc: qemu-stable
The ROM uses the cmovne instruction, which is new in Pentium Pro and does not
work when running QEMU with "-cpu 486". Avoid producing that instruction.
Suggested-by: Richard W.M. Jones <rjones@redhat.com>
Suggested-by: Thomas Huth <thuth@redhat.com>
Reported-by: Rob Landley <rob@landley.net>
Cc: qemu-stable@nongnu.org
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
---
pc-bios/linuxboot_dma.bin | Bin 1536 -> 1536 bytes
pc-bios/optionrom/Makefile | 1 +
2 files changed, 1 insertion(+)
diff --git a/pc-bios/linuxboot_dma.bin b/pc-bios/linuxboot_dma.bin
index 218d3ab4a29bfb5ab7125ec7a4d29dad1860c673..d176f62797813e4b926dca9dfce7ce554dc1a4d6 100644
GIT binary patch
literal 1536
zcmeHFL2J`s82-{_T52KL%w~}udiW-YBE*9t=s~ClrIm^s9^6H6Pf%onr07*+kWd=L
zpW)d<4G1ZESU1FyUDSCf^YYaxioy<}t?!rmu^#*f?mHxJo;-Qp_kHp#Je^o$|2##;
zYs)n)qh6k7XI07O)9TW>>H@3WSgzkI-MW44`qG_Jxhgq7fAt@+rpuZy7{g_FpG^eo
zuoD<7Fjn!zK~Uydy3X@Fj1CnQuA}{tXz$^z=7>a?#S!%6CsARNbiO)h=v+Q~y@5O1
ze8y7!akTy&-YXMV@p3Es`0q*km+)Mtxe(3DE2)a5;c%$H0|Yu~mbnR0C7dKHR7Zsr
zmrccq5lm%U=wXc39<t?-(_m*ZnY&YH(d(0lj;0`jj8e`iWgX(jV5j3gg<B9Cgj2^d
zw;W8A$%i@ijhITTF%3U<ui*Zsgx!lc)pgIq-atzea+i1H+3Oj<V?5-VpBVlz4R#!?
zV3N_sX!mjsj*#|9H8ozR&D5ajsurT@(W<h&xG*;8UNvYI;`kVzRd@m7;AnvgFCdyy
zI>gV6@%Jl!9^%vQ9V0A-7a<bD(|L-BW|R)`qY*CS(3SQRXOVJqcpcuB8NLnUuosH3
zi{OJ7mufeeG{^49xY<M4U)CrSC7Fp}TjtSE>UkNnpxu8npp2ruY0}SsKn=BiGN9Y;
L*>&K*abWuoMsO(*
literal 1536
zcmeHF&ubGw6rN4Dn#RCxYN|nUh%gpJFME=L9)#^}1F5!ps0f07iy|#(O1<iu!xFNH
ze}?~naY4vZ57wZB1jMR`ST7r__~R&=_04QYJoq2jIn2&}@6GqV_sv^+G|^@MTxG^<
zD>W^nf~VP8b!3b3v@l;?V$SuIwL6uYt5>dGyH&BPBIn1?(K>6@S?eidI1hgSZ^wky
zNA%Hz@f^krJcQTH!Ptb+b>Z7QOZy_v)9!Gc_A*CUnxyOgP~7<9qN#In@`mGjfw=z$
z*1p4gW?~r|cz_FdqLT)y8y*s0Z-)z#_;!*cE?PD>cN4<HA{;MET(E~F0*Ke4l-T|Q
zN3kAs(B4Nz%(_i>CX-n&AUsLGXj9UuS(2NP%(`OENoGw|EGqnf#7ASHq-k?KrExJ~
z^CHnSr*VvZO%mMQmY+taei4m+{T$|c^(w4)XlpT*^|#=^eK`aF_0%gE_5j9w)aV=c
zk7$UtO_Fkt>S!)b5N*mx5@orPY(na#Hj4<S)0RarUXZ%Tp{&xoU+SGxcuC<|i62e-
zaCiw}LGfe}PpSO8%0DRczx~>MfwIDj65o<I`H@FBlkzycj5td1A}41qQPA(<_yF`A
z@IINro1ha6gE;8HfA4iFwHr(rWNnH$vl3XJyEGJ>hT<|dXkK7E?qHJ9XdoKqMjysh
NXm9N~@Si)N{RVuA8xQ~h
diff --git a/pc-bios/optionrom/Makefile b/pc-bios/optionrom/Makefile
index fa53d9e..a9a9e5e 100644
--- a/pc-bios/optionrom/Makefile
+++ b/pc-bios/optionrom/Makefile
@@ -13,6 +13,7 @@ $(call set-vpath, $(SRC_PATH)/pc-bios/optionrom)
ifeq ($(lastword $(filter -O%, -O0 $(CFLAGS))),-O0)
override CFLAGS += -O2
endif
+override CFLAGS += -march=i486
# Drop -fstack-protector and the like
QEMU_CFLAGS := $(filter -W%, $(QEMU_CFLAGS)) $(CFLAGS_NOPIE) -ffreestanding
--
1.8.3.1
^ permalink raw reply related [flat|nested] 44+ messages in thread
* [Qemu-devel] [PULL 28/33] edu: fix memory leak on msi_broken platforms
2017-06-01 12:41 [Qemu-devel] [PULL 00/33] Misc patches for 2017-06-01 Paolo Bonzini
` (26 preceding siblings ...)
2017-06-01 12:41 ` [Qemu-devel] [PULL 27/33] linuxboot_dma: compile for i486 Paolo Bonzini
@ 2017-06-01 12:41 ` Paolo Bonzini
2017-06-01 12:41 ` [Qemu-devel] [PULL 29/33] i386/kvm: do not zero out segment flags if segment is unusable or not present Paolo Bonzini
` (6 subsequent siblings)
34 siblings, 0 replies; 44+ messages in thread
From: Paolo Bonzini @ 2017-06-01 12:41 UTC (permalink / raw)
To: qemu-devel; +Cc: Peter Xu
If msi_init fails, the thread has already been created and the
mutex/condvar are not destroyed. Initialize everything only
after the point where pci_edu_realize cannot fail.
Reported-by: Markus Armbruster <armbru@redhat.com>
Cc: Peter Xu <peterx@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
---
hw/misc/edu.c | 12 ++++++------
1 file changed, 6 insertions(+), 6 deletions(-)
diff --git a/hw/misc/edu.c b/hw/misc/edu.c
index 401039c..01acacf 100644
--- a/hw/misc/edu.c
+++ b/hw/misc/edu.c
@@ -343,6 +343,12 @@ static void pci_edu_realize(PCIDevice *pdev, Error **errp)
EduState *edu = DO_UPCAST(EduState, pdev, pdev);
uint8_t *pci_conf = pdev->config;
+ pci_config_set_interrupt_pin(pci_conf, 1);
+
+ if (msi_init(pdev, 0, 1, true, false, errp)) {
+ return;
+ }
+
timer_init_ms(&edu->dma_timer, QEMU_CLOCK_VIRTUAL, edu_dma_timer, edu);
qemu_mutex_init(&edu->thr_mutex);
@@ -350,12 +356,6 @@ static void pci_edu_realize(PCIDevice *pdev, Error **errp)
qemu_thread_create(&edu->thread, "edu", edu_fact_thread,
edu, QEMU_THREAD_JOINABLE);
- pci_config_set_interrupt_pin(pci_conf, 1);
-
- if (msi_init(pdev, 0, 1, true, false, errp)) {
- return;
- }
-
memory_region_init_io(&edu->mmio, OBJECT(edu), &edu_mmio_ops, edu,
"edu-mmio", 1 << 20);
pci_register_bar(pdev, 0, PCI_BASE_ADDRESS_SPACE_MEMORY, &edu->mmio);
--
1.8.3.1
^ permalink raw reply related [flat|nested] 44+ messages in thread
* [Qemu-devel] [PULL 29/33] i386/kvm: do not zero out segment flags if segment is unusable or not present
2017-06-01 12:41 [Qemu-devel] [PULL 00/33] Misc patches for 2017-06-01 Paolo Bonzini
` (27 preceding siblings ...)
2017-06-01 12:41 ` [Qemu-devel] [PULL 28/33] edu: fix memory leak on msi_broken platforms Paolo Bonzini
@ 2017-06-01 12:41 ` Paolo Bonzini
2017-06-01 12:41 ` [Qemu-devel] [PULL 30/33] target/i386: Add GDB XML description for SSE registers Paolo Bonzini
` (5 subsequent siblings)
34 siblings, 0 replies; 44+ messages in thread
From: Paolo Bonzini @ 2017-06-01 12:41 UTC (permalink / raw)
To: qemu-devel
Cc: Roman Pen, Mikhail Sennikovskii, Radim Krčmář,
Michael Chapman
From: Roman Pen <roman.penyaev@profitbricks.com>
This is a fix for the problem [1], where VMCB.CPL was set to 0 and interrupt
was taken on userspace stack. The root cause lies in the specific AMD CPU
behaviour which manifests itself as unusable segment attributes on SYSRET[2].
Here in this patch flags are not touched even segment is unusable or is not
present, therefore CPL (which is stored in DPL field) should not be lost and
will be successfully restored on kvm/svm kernel side.
Also current patch should not break desired behavior described in this commit:
4cae9c97967a ("target-i386: kvm: clear unusable segments' flags in migration")
since present bit will be dropped if segment is unusable or is not present.
This is the second part of the whole fix of the corresponding problem [1],
first part is related to kvm/svm kernel side and does exactly the same:
segment attributes are not zeroed out.
[1] Message id: CAJrWOzD6Xq==b-zYCDdFLgSRMPM-NkNuTSDFEtX=7MreT45i7Q@mail.gmail.com
[2] Message id: 5d120f358612d73fc909f5bfa47e7bd082db0af0.1429841474.git.luto@kernel.org
Signed-off-by: Roman Pen <roman.penyaev@profitbricks.com>
Signed-off-by: Mikhail Sennikovskii <mikhail.sennikovskii@profitbricks.com>
Cc: Paolo Bonzini <pbonzini@redhat.com>
Cc: Radim Krčmář <rkrcmar@redhat.com>
Cc: Michael Chapman <mike@very.puzzling.org>
Cc: qemu-devel@nongnu.org
Message-Id: <20170601085604.12980-1-roman.penyaev@profitbricks.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
---
target/i386/kvm.c | 20 ++++++++------------
1 file changed, 8 insertions(+), 12 deletions(-)
diff --git a/target/i386/kvm.c b/target/i386/kvm.c
index 82c72d2..6e7c197 100644
--- a/target/i386/kvm.c
+++ b/target/i386/kvm.c
@@ -1301,18 +1301,14 @@ static void get_seg(SegmentCache *lhs, const struct kvm_segment *rhs)
lhs->selector = rhs->selector;
lhs->base = rhs->base;
lhs->limit = rhs->limit;
- if (rhs->unusable) {
- lhs->flags = 0;
- } else {
- lhs->flags = (rhs->type << DESC_TYPE_SHIFT) |
- (rhs->present * DESC_P_MASK) |
- (rhs->dpl << DESC_DPL_SHIFT) |
- (rhs->db << DESC_B_SHIFT) |
- (rhs->s * DESC_S_MASK) |
- (rhs->l << DESC_L_SHIFT) |
- (rhs->g * DESC_G_MASK) |
- (rhs->avl * DESC_AVL_MASK);
- }
+ lhs->flags = (rhs->type << DESC_TYPE_SHIFT) |
+ ((rhs->present && !rhs->unusable) * DESC_P_MASK) |
+ (rhs->dpl << DESC_DPL_SHIFT) |
+ (rhs->db << DESC_B_SHIFT) |
+ (rhs->s * DESC_S_MASK) |
+ (rhs->l << DESC_L_SHIFT) |
+ (rhs->g * DESC_G_MASK) |
+ (rhs->avl * DESC_AVL_MASK);
}
static void kvm_getput_reg(__u64 *kvm_reg, target_ulong *qemu_reg, int set)
--
1.8.3.1
^ permalink raw reply related [flat|nested] 44+ messages in thread
* [Qemu-devel] [PULL 30/33] target/i386: Add GDB XML description for SSE registers
2017-06-01 12:41 [Qemu-devel] [PULL 00/33] Misc patches for 2017-06-01 Paolo Bonzini
` (28 preceding siblings ...)
2017-06-01 12:41 ` [Qemu-devel] [PULL 29/33] i386/kvm: do not zero out segment flags if segment is unusable or not present Paolo Bonzini
@ 2017-06-01 12:41 ` Paolo Bonzini
2017-06-01 12:41 ` [Qemu-devel] [PULL 31/33] hw/core: nmi.c can be compiled as common-obj nowadays Paolo Bonzini
` (4 subsequent siblings)
34 siblings, 0 replies; 44+ messages in thread
From: Paolo Bonzini @ 2017-06-01 12:41 UTC (permalink / raw)
To: qemu-devel; +Cc: Abdallah Bouassida
From: Abdallah Bouassida <abdallah.bouassida@lauterbach.com>
Add an XML description for SSE registers (XMM+MXCSR) for both X86
and X86-64 architectures in the GDB stub:
- configure: Define gdb_xml_files for the X86 targets (32 and 64bit).
- gdb-xml/i386-32bit-sse.xml & gdb-xml/i386-64bit-sse.xml: The XML files
that contain a description of the XMM + MXCSR registers.
- gdb-xml/i386-32bit.xml & gdb-xml/i386-64bit.xml: wrappers that include
the XML file of the core registers and the other XML file of the SSE registers.
- target/i386/cpu.c: Modify the gdb_core_xml_file to the new XML wrapper,
modify the gdb_num_core_regs to fit the registers number defined in each
XML file.
Signed-off-by: Abdallah Bouassida <abdallah.bouassida@lauterbach.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
---
configure | 4 ++--
gdb-xml/i386-32bit-sse.xml | 52 ++++++++++++++++++++++++++++++++++++++++
gdb-xml/i386-32bit.xml | 14 +++++++++++
gdb-xml/i386-64bit-sse.xml | 60 ++++++++++++++++++++++++++++++++++++++++++++++
gdb-xml/i386-64bit.xml | 14 +++++++++++
target/i386/cpu.c | 8 +++----
6 files changed, 146 insertions(+), 6 deletions(-)
create mode 100644 gdb-xml/i386-32bit-sse.xml
create mode 100644 gdb-xml/i386-32bit.xml
create mode 100644 gdb-xml/i386-64bit-sse.xml
create mode 100644 gdb-xml/i386-64bit.xml
diff --git a/configure b/configure
index 139638e..aeec615 100755
--- a/configure
+++ b/configure
@@ -6033,11 +6033,11 @@ TARGET_ABI_DIR=""
case "$target_name" in
i386)
- gdb_xml_files="i386-32bit-core.xml"
+ gdb_xml_files="i386-32bit.xml i386-32bit-core.xml i386-32bit-sse.xml"
;;
x86_64)
TARGET_BASE_ARCH=i386
- gdb_xml_files="i386-64bit-core.xml"
+ gdb_xml_files="i386-64bit.xml i386-64bit-core.xml i386-64bit-sse.xml"
;;
alpha)
mttcg="yes"
diff --git a/gdb-xml/i386-32bit-sse.xml b/gdb-xml/i386-32bit-sse.xml
new file mode 100644
index 0000000..5767847
--- /dev/null
+++ b/gdb-xml/i386-32bit-sse.xml
@@ -0,0 +1,52 @@
+<?xml version="1.0"?>
+<!-- Copyright (C) 2010-2017 Free Software Foundation, Inc.
+
+ Copying and distribution of this file, with or without modification,
+ are permitted in any medium without royalty provided the copyright
+ notice and this notice are preserved. -->
+
+<!DOCTYPE feature SYSTEM "gdb-target.dtd">
+<feature name="org.gnu.gdb.i386.32bit.sse">
+ <vector id="v4f" type="ieee_single" count="4"/>
+ <vector id="v2d" type="ieee_double" count="2"/>
+ <vector id="v16i8" type="int8" count="16"/>
+ <vector id="v8i16" type="int16" count="8"/>
+ <vector id="v4i32" type="int32" count="4"/>
+ <vector id="v2i64" type="int64" count="2"/>
+ <union id="vec128">
+ <field name="v4_float" type="v4f"/>
+ <field name="v2_double" type="v2d"/>
+ <field name="v16_int8" type="v16i8"/>
+ <field name="v8_int16" type="v8i16"/>
+ <field name="v4_int32" type="v4i32"/>
+ <field name="v2_int64" type="v2i64"/>
+ <field name="uint128" type="uint128"/>
+ </union>
+ <flags id="i386_mxcsr" size="4">
+ <field name="IE" start="0" end="0"/>
+ <field name="DE" start="1" end="1"/>
+ <field name="ZE" start="2" end="2"/>
+ <field name="OE" start="3" end="3"/>
+ <field name="UE" start="4" end="4"/>
+ <field name="PE" start="5" end="5"/>
+ <field name="DAZ" start="6" end="6"/>
+ <field name="IM" start="7" end="7"/>
+ <field name="DM" start="8" end="8"/>
+ <field name="ZM" start="9" end="9"/>
+ <field name="OM" start="10" end="10"/>
+ <field name="UM" start="11" end="11"/>
+ <field name="PM" start="12" end="12"/>
+ <field name="FZ" start="15" end="15"/>
+ </flags>
+
+ <reg name="xmm0" bitsize="128" type="vec128" regnum="32"/>
+ <reg name="xmm1" bitsize="128" type="vec128"/>
+ <reg name="xmm2" bitsize="128" type="vec128"/>
+ <reg name="xmm3" bitsize="128" type="vec128"/>
+ <reg name="xmm4" bitsize="128" type="vec128"/>
+ <reg name="xmm5" bitsize="128" type="vec128"/>
+ <reg name="xmm6" bitsize="128" type="vec128"/>
+ <reg name="xmm7" bitsize="128" type="vec128"/>
+
+ <reg name="mxcsr" bitsize="32" type="i386_mxcsr" group="vector"/>
+</feature>
diff --git a/gdb-xml/i386-32bit.xml b/gdb-xml/i386-32bit.xml
new file mode 100644
index 0000000..956fc7f
--- /dev/null
+++ b/gdb-xml/i386-32bit.xml
@@ -0,0 +1,14 @@
+<?xml version="1.0"?>
+<!-- Copyright (C) 2010-2017 Free Software Foundation, Inc.
+
+ Copying and distribution of this file, with or without modification,
+ are permitted in any medium without royalty provided the copyright
+ notice and this notice are preserved. -->
+
+<!-- I386 with SSE -->
+
+<!DOCTYPE target SYSTEM "gdb-target.dtd">
+<feature name="org.gnu.gdb.i386.32bit">
+ <xi:include href="i386-32bit-core.xml"/>
+ <xi:include href="i386-32bit-sse.xml"/>
+</feature>
diff --git a/gdb-xml/i386-64bit-sse.xml b/gdb-xml/i386-64bit-sse.xml
new file mode 100644
index 0000000..e86efc9
--- /dev/null
+++ b/gdb-xml/i386-64bit-sse.xml
@@ -0,0 +1,60 @@
+<?xml version="1.0"?>
+<!-- Copyright (C) 2010-2017 Free Software Foundation, Inc.
+
+ Copying and distribution of this file, with or without modification,
+ are permitted in any medium without royalty provided the copyright
+ notice and this notice are preserved. -->
+
+<!DOCTYPE feature SYSTEM "gdb-target.dtd">
+<feature name="org.gnu.gdb.i386.64bit.sse">
+ <vector id="v4f" type="ieee_single" count="4"/>
+ <vector id="v2d" type="ieee_double" count="2"/>
+ <vector id="v16i8" type="int8" count="16"/>
+ <vector id="v8i16" type="int16" count="8"/>
+ <vector id="v4i32" type="int32" count="4"/>
+ <vector id="v2i64" type="int64" count="2"/>
+ <union id="vec128">
+ <field name="v4_float" type="v4f"/>
+ <field name="v2_double" type="v2d"/>
+ <field name="v16_int8" type="v16i8"/>
+ <field name="v8_int16" type="v8i16"/>
+ <field name="v4_int32" type="v4i32"/>
+ <field name="v2_int64" type="v2i64"/>
+ <field name="uint128" type="uint128"/>
+ </union>
+ <flags id="i386_mxcsr" size="4">
+ <field name="IE" start="0" end="0"/>
+ <field name="DE" start="1" end="1"/>
+ <field name="ZE" start="2" end="2"/>
+ <field name="OE" start="3" end="3"/>
+ <field name="UE" start="4" end="4"/>
+ <field name="PE" start="5" end="5"/>
+ <field name="DAZ" start="6" end="6"/>
+ <field name="IM" start="7" end="7"/>
+ <field name="DM" start="8" end="8"/>
+ <field name="ZM" start="9" end="9"/>
+ <field name="OM" start="10" end="10"/>
+ <field name="UM" start="11" end="11"/>
+ <field name="PM" start="12" end="12"/>
+ <field name="FZ" start="15" end="15"/>
+ </flags>
+
+ <reg name="xmm0" bitsize="128" type="vec128" regnum="40"/>
+ <reg name="xmm1" bitsize="128" type="vec128"/>
+ <reg name="xmm2" bitsize="128" type="vec128"/>
+ <reg name="xmm3" bitsize="128" type="vec128"/>
+ <reg name="xmm4" bitsize="128" type="vec128"/>
+ <reg name="xmm5" bitsize="128" type="vec128"/>
+ <reg name="xmm6" bitsize="128" type="vec128"/>
+ <reg name="xmm7" bitsize="128" type="vec128"/>
+ <reg name="xmm8" bitsize="128" type="vec128"/>
+ <reg name="xmm9" bitsize="128" type="vec128"/>
+ <reg name="xmm10" bitsize="128" type="vec128"/>
+ <reg name="xmm11" bitsize="128" type="vec128"/>
+ <reg name="xmm12" bitsize="128" type="vec128"/>
+ <reg name="xmm13" bitsize="128" type="vec128"/>
+ <reg name="xmm14" bitsize="128" type="vec128"/>
+ <reg name="xmm15" bitsize="128" type="vec128"/>
+
+ <reg name="mxcsr" bitsize="32" type="i386_mxcsr" group="vector"/>
+</feature>
diff --git a/gdb-xml/i386-64bit.xml b/gdb-xml/i386-64bit.xml
new file mode 100644
index 0000000..0b2f00c
--- /dev/null
+++ b/gdb-xml/i386-64bit.xml
@@ -0,0 +1,14 @@
+<?xml version="1.0"?>
+<!-- Copyright (C) 2010-2017 Free Software Foundation, Inc.
+
+ Copying and distribution of this file, with or without modification,
+ are permitted in any medium without royalty provided the copyright
+ notice and this notice are preserved. -->
+
+<!-- I386 64bit -->
+
+<!DOCTYPE target SYSTEM "gdb-target.dtd">
+<feature name="org.gnu.gdb.i386.64bit">
+ <xi:include href="i386-64bit-core.xml"/>
+ <xi:include href="i386-64bit-sse.xml"/>
+</feature>
diff --git a/target/i386/cpu.c b/target/i386/cpu.c
index a638832..41978d8 100644
--- a/target/i386/cpu.c
+++ b/target/i386/cpu.c
@@ -4068,11 +4068,11 @@ static void x86_cpu_common_class_init(ObjectClass *oc, void *data)
#endif
cc->gdb_arch_name = x86_gdb_arch_name;
#ifdef TARGET_X86_64
- cc->gdb_core_xml_file = "i386-64bit-core.xml";
- cc->gdb_num_core_regs = 40;
+ cc->gdb_core_xml_file = "i386-64bit.xml";
+ cc->gdb_num_core_regs = 57;
#else
- cc->gdb_core_xml_file = "i386-32bit-core.xml";
- cc->gdb_num_core_regs = 32;
+ cc->gdb_core_xml_file = "i386-32bit.xml";
+ cc->gdb_num_core_regs = 41;
#endif
#ifndef CONFIG_USER_ONLY
cc->debug_excp_handler = breakpoint_handler;
--
1.8.3.1
^ permalink raw reply related [flat|nested] 44+ messages in thread
* [Qemu-devel] [PULL 31/33] hw/core: nmi.c can be compiled as common-obj nowadays
2017-06-01 12:41 [Qemu-devel] [PULL 00/33] Misc patches for 2017-06-01 Paolo Bonzini
` (29 preceding siblings ...)
2017-06-01 12:41 ` [Qemu-devel] [PULL 30/33] target/i386: Add GDB XML description for SSE registers Paolo Bonzini
@ 2017-06-01 12:41 ` Paolo Bonzini
2017-06-01 12:41 ` [Qemu-devel] [PULL 32/33] nbd: make it thread-safe, fix qcow2 over nbd Paolo Bonzini
` (3 subsequent siblings)
34 siblings, 0 replies; 44+ messages in thread
From: Paolo Bonzini @ 2017-06-01 12:41 UTC (permalink / raw)
To: qemu-devel; +Cc: Thomas Huth
From: Thomas Huth <thuth@redhat.com>
The target-specific code in nmi.c has been removed with this commit:
commit f7e981f29548fe4af7812f5920304fe607e5bf0d
nmi: remove x86 specific nmi handling
Signed-off-by: Thomas Huth <thuth@redhat.com>
Message-Id: <1496310843-28771-1-git-send-email-thuth@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
---
hw/core/Makefile.objs | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/hw/core/Makefile.objs b/hw/core/Makefile.objs
index 91450b2..f8d7a4a 100644
--- a/hw/core/Makefile.objs
+++ b/hw/core/Makefile.objs
@@ -5,7 +5,7 @@ common-obj-y += fw-path-provider.o
# irq.o needed for qdev GPIO handling:
common-obj-y += irq.o
common-obj-y += hotplug.o
-obj-y += nmi.o
+common-obj-y += nmi.o
common-obj-$(CONFIG_EMPTY_SLOT) += empty_slot.o
common-obj-$(CONFIG_XILINX_AXI) += stream.o
--
1.8.3.1
^ permalink raw reply related [flat|nested] 44+ messages in thread
* [Qemu-devel] [PULL 32/33] nbd: make it thread-safe, fix qcow2 over nbd
2017-06-01 12:41 [Qemu-devel] [PULL 00/33] Misc patches for 2017-06-01 Paolo Bonzini
` (30 preceding siblings ...)
2017-06-01 12:41 ` [Qemu-devel] [PULL 31/33] hw/core: nmi.c can be compiled as common-obj nowadays Paolo Bonzini
@ 2017-06-01 12:41 ` Paolo Bonzini
2017-06-01 12:41 ` [Qemu-devel] [PULL 33/33] kvm: don't register smram_listener when smm is off Paolo Bonzini
` (2 subsequent siblings)
34 siblings, 0 replies; 44+ messages in thread
From: Paolo Bonzini @ 2017-06-01 12:41 UTC (permalink / raw)
To: qemu-devel
NBD is not thread safe, because it accesses s->in_flight without
a CoMutex. Fixing this will be required for multiqueue.
CoQueue doesn't have spurious wakeups but, when another coroutine can
run between qemu_co_queue_next's wakeup and qemu_co_queue_wait's
re-locking of the mutex, the wait condition can become false and
a loop is necessary.
In fact, it turns out that the loop is necessary even without this
multi-threaded scenario. A particular sequence of coroutine wakeups
is happening ~80% of the time when starting a guest with qcow2 image
served over NBD (i.e. qemu-nbd --format=raw, and QEMU's -drive option
has -format=qcow2). This patch fixes that issue too.
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
---
block/nbd-client.c | 30 +++++++++---------------------
1 file changed, 9 insertions(+), 21 deletions(-)
diff --git a/block/nbd-client.c b/block/nbd-client.c
index 09d955b..87d19c7 100644
--- a/block/nbd-client.c
+++ b/block/nbd-client.c
@@ -119,6 +119,10 @@ static int nbd_co_send_request(BlockDriverState *bs,
int rc, ret, i;
qemu_co_mutex_lock(&s->send_mutex);
+ while (s->in_flight == MAX_NBD_REQUESTS) {
+ qemu_co_queue_wait(&s->free_sema, &s->send_mutex);
+ }
+ s->in_flight++;
for (i = 0; i < MAX_NBD_REQUESTS; i++) {
if (s->recv_coroutine[i] == NULL) {
@@ -181,20 +185,6 @@ static void nbd_co_receive_reply(NBDClientSession *s,
}
}
-static void nbd_coroutine_start(NBDClientSession *s,
- NBDRequest *request)
-{
- /* Poor man semaphore. The free_sema is locked when no other request
- * can be accepted, and unlocked after receiving one reply. */
- if (s->in_flight == MAX_NBD_REQUESTS) {
- qemu_co_queue_wait(&s->free_sema, NULL);
- assert(s->in_flight < MAX_NBD_REQUESTS);
- }
- s->in_flight++;
-
- /* s->recv_coroutine[i] is set as soon as we get the send_lock. */
-}
-
static void nbd_coroutine_end(BlockDriverState *bs,
NBDRequest *request)
{
@@ -202,13 +192,16 @@ static void nbd_coroutine_end(BlockDriverState *bs,
int i = HANDLE_TO_INDEX(s, request->handle);
s->recv_coroutine[i] = NULL;
- s->in_flight--;
- qemu_co_queue_next(&s->free_sema);
/* Kick the read_reply_co to get the next reply. */
if (s->read_reply_co) {
aio_co_wake(s->read_reply_co);
}
+
+ qemu_co_mutex_lock(&s->send_mutex);
+ s->in_flight--;
+ qemu_co_queue_next(&s->free_sema);
+ qemu_co_mutex_unlock(&s->send_mutex);
}
int nbd_client_co_preadv(BlockDriverState *bs, uint64_t offset,
@@ -226,7 +219,6 @@ int nbd_client_co_preadv(BlockDriverState *bs, uint64_t offset,
assert(bytes <= NBD_MAX_BUFFER_SIZE);
assert(!flags);
- nbd_coroutine_start(client, &request);
ret = nbd_co_send_request(bs, &request, NULL);
if (ret < 0) {
reply.error = -ret;
@@ -256,7 +248,6 @@ int nbd_client_co_pwritev(BlockDriverState *bs, uint64_t offset,
assert(bytes <= NBD_MAX_BUFFER_SIZE);
- nbd_coroutine_start(client, &request);
ret = nbd_co_send_request(bs, &request, qiov);
if (ret < 0) {
reply.error = -ret;
@@ -291,7 +282,6 @@ int nbd_client_co_pwrite_zeroes(BlockDriverState *bs, int64_t offset,
request.flags |= NBD_CMD_FLAG_NO_HOLE;
}
- nbd_coroutine_start(client, &request);
ret = nbd_co_send_request(bs, &request, NULL);
if (ret < 0) {
reply.error = -ret;
@@ -316,7 +306,6 @@ int nbd_client_co_flush(BlockDriverState *bs)
request.from = 0;
request.len = 0;
- nbd_coroutine_start(client, &request);
ret = nbd_co_send_request(bs, &request, NULL);
if (ret < 0) {
reply.error = -ret;
@@ -342,7 +331,6 @@ int nbd_client_co_pdiscard(BlockDriverState *bs, int64_t offset, int count)
return 0;
}
- nbd_coroutine_start(client, &request);
ret = nbd_co_send_request(bs, &request, NULL);
if (ret < 0) {
reply.error = -ret;
--
1.8.3.1
^ permalink raw reply related [flat|nested] 44+ messages in thread
* [Qemu-devel] [PULL 33/33] kvm: don't register smram_listener when smm is off
2017-06-01 12:41 [Qemu-devel] [PULL 00/33] Misc patches for 2017-06-01 Paolo Bonzini
` (31 preceding siblings ...)
2017-06-01 12:41 ` [Qemu-devel] [PULL 32/33] nbd: make it thread-safe, fix qcow2 over nbd Paolo Bonzini
@ 2017-06-01 12:41 ` Paolo Bonzini
2017-06-01 14:26 ` [Qemu-devel] [PULL 00/33] Misc patches for 2017-06-01 no-reply
2017-06-01 15:09 ` no-reply
34 siblings, 0 replies; 44+ messages in thread
From: Paolo Bonzini @ 2017-06-01 12:41 UTC (permalink / raw)
To: qemu-devel; +Cc: Gonglei
From: Gonglei <arei.gonglei@huawei.com>
If the user set disable smm by '-machine smm=off', we
should not register smram_listener so that we can
avoid waster memory in kvm since the added sencond
address space.
Meanwhile we should assign value of the global kvm_state
before invoking the kvm_arch_init(), because
pc_machine_is_smm_enabled() may use it by kvm_has_mm().
Signed-off-by: Gonglei <arei.gonglei@huawei.com>
Message-Id: <1496316915-121196-1-git-send-email-arei.gonglei@huawei.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
---
kvm-all.c | 4 ++--
target/i386/kvm.c | 4 +++-
2 files changed, 5 insertions(+), 3 deletions(-)
diff --git a/kvm-all.c b/kvm-all.c
index 2598b1f..fb87bdc 100644
--- a/kvm-all.c
+++ b/kvm-all.c
@@ -1748,6 +1748,8 @@ static int kvm_init(MachineState *ms)
kvm_ioeventfd_any_length_allowed =
(kvm_check_extension(s, KVM_CAP_IOEVENTFD_ANY_LENGTH) > 0);
+ kvm_state = s;
+
ret = kvm_arch_init(ms, s);
if (ret < 0) {
goto err;
@@ -1757,8 +1759,6 @@ static int kvm_init(MachineState *ms)
kvm_irqchip_create(ms, s);
}
- kvm_state = s;
-
if (kvm_eventfds_allowed) {
s->memory_listener.listener.eventfd_add = kvm_mem_ioeventfd_add;
s->memory_listener.listener.eventfd_del = kvm_mem_ioeventfd_del;
diff --git a/target/i386/kvm.c b/target/i386/kvm.c
index 6e7c197..8e3bbc5 100644
--- a/target/i386/kvm.c
+++ b/target/i386/kvm.c
@@ -1255,7 +1255,9 @@ int kvm_arch_init(MachineState *ms, KVMState *s)
}
}
- if (kvm_check_extension(s, KVM_CAP_X86_SMM)) {
+ if (kvm_check_extension(s, KVM_CAP_X86_SMM) &&
+ object_dynamic_cast(OBJECT(ms), TYPE_PC_MACHINE) &&
+ pc_machine_is_smm_enabled(PC_MACHINE(ms))) {
smram_machine_done.notify = register_smram_listener;
qemu_add_machine_init_done_notifier(&smram_machine_done);
}
--
1.8.3.1
^ permalink raw reply related [flat|nested] 44+ messages in thread
* Re: [Qemu-devel] [PULL 00/33] Misc patches for 2017-06-01
2017-06-01 12:41 [Qemu-devel] [PULL 00/33] Misc patches for 2017-06-01 Paolo Bonzini
` (32 preceding siblings ...)
2017-06-01 12:41 ` [Qemu-devel] [PULL 33/33] kvm: don't register smram_listener when smm is off Paolo Bonzini
@ 2017-06-01 14:26 ` no-reply
2017-06-01 15:09 ` no-reply
34 siblings, 0 replies; 44+ messages in thread
From: no-reply @ 2017-06-01 14:26 UTC (permalink / raw)
To: pbonzini; +Cc: famz, qemu-devel
Hi,
This series failed automatic build test. Please find the testing commands and
their output below. If you have docker installed, you can probably reproduce it
locally.
Message-id: 1496320911-51305-1-git-send-email-pbonzini@redhat.com
Type: series
Subject: [Qemu-devel] [PULL 00/33] Misc patches for 2017-06-01
=== TEST SCRIPT BEGIN ===
#!/bin/bash
set -e
git submodule update --init dtc
# Let docker tests dump environment info
export SHOW_ENV=1
export J=8
time make docker-test-quick@centos6
time make docker-test-mingw@fedora
time make docker-test-build@min-glib
=== TEST SCRIPT END ===
Updating 3c8cf5a9c21ff8782164d1def7f44bd888713384
Auto packing the repository in background for optimum performance.
See "git help gc" for manual housekeeping.
Switched to a new branch 'test'
1ebbf04 kvm: don't register smram_listener when smm is off
f4b3f7c nbd: make it thread-safe, fix qcow2 over nbd
d4a18e8 hw/core: nmi.c can be compiled as common-obj nowadays
c06c4af target/i386: Add GDB XML description for SSE registers
4344a48 i386/kvm: do not zero out segment flags if segment is unusable or not present
e86883d edu: fix memory leak on msi_broken platforms
be6d7fd linuxboot_dma: compile for i486
14947d1 kvmclock: update system_time_msr address forcibly
5001e27 qtest: add rtc periodic timer test
97bb2fa nbd: Fully initialize client in case of failed negotiation
5d9ae3d exec: fix address_space_get_iotlb_entry page mask
f778d29 sockets: improve error reporting if UNIX socket path is too long
d7a4856 i386: fix read/write cr with icount option
188dc83 target/i386: use multiple CPU AddressSpaces
8efdf10 target/i386: enable A20 automatically in system management mode
cc48f9a vhost-user-scsi: Introduce a vhost-user-scsi sample application
f2e2614 vhost-user-scsi: Introduce vhost-user-scsi host device
8b2ecdf virtio-scsi: Unset hotplug handler when unrealize
7d172d8 exec: simplify phys_page_find() params
cc24c0d nbd/client.c: use errp instead of LOG
8581947 nbd: add errp to read_sync, write_sync and drop_sync
049fa7e nbd: add errp parameter to nbd_wr_syncv()
6715ff30 nbd: read_sync and friends: return 0 on success
7ebb76e nbd: strict nbd_wr_syncv
3e8b635 Check the return value of fcntl in qemu_set_cloexec
cb9ada7 kvm: irqchip: skip update msi when disabled
302dc31 msix: trace control bit write op
fb29a24 kvm: irqchip: trace changes on msi add/remove
e6cd374 mc146818rtc: embrace all x86 specific code
88f77c2 mc146818rtc: drop unnecessary '#ifdef TARGET_I386'
546abbc mc146818rtc: ensure LOST_TICK_POLICY_SLEW is only enabled on TARGET_I386
1b2152e mc146818rtc: precisely count the clock for periodic timer
472d959 mc146818rtc: update periodic timer only if it is needed
=== OUTPUT BEGIN ===
Submodule 'dtc' (git://git.qemu-project.org/dtc.git) registered for path 'dtc'
Cloning into '/var/tmp/patchew-tester-tmp-aqow9c0d/src/dtc'...
Submodule path 'dtc': checked out '558cd81bdd432769b59bff01240c44f82cfb1a9d'
BUILD centos6
make[1]: Entering directory '/var/tmp/patchew-tester-tmp-aqow9c0d/src'
ARCHIVE qemu.tgz
ARCHIVE dtc.tgz
COPY RUNNER
RUN test-quick in qemu:centos6
Packages installed:
SDL-devel-1.2.14-7.el6_7.1.x86_64
ccache-3.1.6-2.el6.x86_64
epel-release-6-8.noarch
gcc-4.4.7-17.el6.x86_64
git-1.7.1-4.el6_7.1.x86_64
glib2-devel-2.28.8-5.el6.x86_64
libfdt-devel-1.4.0-1.el6.x86_64
make-3.81-23.el6.x86_64
package g++ is not installed
pixman-devel-0.32.8-1.el6.x86_64
tar-1.23-15.el6_8.x86_64
zlib-devel-1.2.3-29.el6.x86_64
Environment variables:
PACKAGES=libfdt-devel ccache tar git make gcc g++ zlib-devel glib2-devel SDL-devel pixman-devel epel-release
HOSTNAME=6936da52fa5d
TERM=xterm
MAKEFLAGS= -j8
HISTSIZE=1000
J=8
USER=root
CCACHE_DIR=/var/tmp/ccache
EXTRA_CONFIGURE_OPTS=
V=
SHOW_ENV=1
MAIL=/var/spool/mail/root
PATH=/usr/lib/ccache:/usr/lib64/ccache:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin
PWD=/
LANG=en_US.UTF-8
TARGET_LIST=
HISTCONTROL=ignoredups
SHLVL=1
HOME=/root
TEST_DIR=/tmp/qemu-test
LOGNAME=root
LESSOPEN=||/usr/bin/lesspipe.sh %s
FEATURES= dtc
DEBUG=
G_BROKEN_FILENAMES=1
CCACHE_HASHDIR=
_=/usr/bin/env
Configure options:
--enable-werror --target-list=x86_64-softmmu,aarch64-softmmu --prefix=/var/tmp/qemu-build/install
No C++ compiler available; disabling C++ specific optional code
Install prefix /var/tmp/qemu-build/install
BIOS directory /var/tmp/qemu-build/install/share/qemu
binary directory /var/tmp/qemu-build/install/bin
library directory /var/tmp/qemu-build/install/lib
module directory /var/tmp/qemu-build/install/lib/qemu
libexec directory /var/tmp/qemu-build/install/libexec
include directory /var/tmp/qemu-build/install/include
config directory /var/tmp/qemu-build/install/etc
local state directory /var/tmp/qemu-build/install/var
Manual directory /var/tmp/qemu-build/install/share/man
ELF interp prefix /usr/gnemul/qemu-%M
Source path /tmp/qemu-test/src
C compiler cc
Host C compiler cc
C++ compiler
Objective-C compiler cc
ARFLAGS rv
CFLAGS -O2 -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2 -g
QEMU_CFLAGS -I/usr/include/pixman-1 -I$(SRC_PATH)/dtc/libfdt -pthread -I/usr/include/glib-2.0 -I/usr/lib64/glib-2.0/include -fPIE -DPIE -m64 -mcx16 -D_GNU_SOURCE -D_FILE_OFFSET_BITS=64 -D_LARGEFILE_SOURCE -Wstrict-prototypes -Wredundant-decls -Wall -Wundef -Wwrite-strings -Wmissing-prototypes -fno-strict-aliasing -fno-common -fwrapv -Wendif-labels -Wno-missing-include-dirs -Wempty-body -Wnested-externs -Wformat-security -Wformat-y2k -Winit-self -Wignored-qualifiers -Wold-style-declaration -Wold-style-definition -Wtype-limits -fstack-protector-all
LDFLAGS -Wl,--warn-common -Wl,-z,relro -Wl,-z,now -pie -m64 -g
make make
install install
python python -B
smbd /usr/sbin/smbd
module support no
host CPU x86_64
host big endian no
target list x86_64-softmmu aarch64-softmmu
tcg debug enabled no
gprof enabled no
sparse enabled no
strip binaries yes
profiler no
static build no
pixman system
SDL support yes (1.2.14)
GTK support no
GTK GL support no
VTE support no
TLS priority NORMAL
GNUTLS support no
GNUTLS rnd no
libgcrypt no
libgcrypt kdf no
nettle no
nettle kdf no
libtasn1 no
curses support no
virgl support no
curl support no
mingw32 support no
Audio drivers oss
Block whitelist (rw)
Block whitelist (ro)
VirtFS support no
VNC support yes
VNC SASL support no
VNC JPEG support no
VNC PNG support no
xen support no
brlapi support no
bluez support no
Documentation no
PIE yes
vde support no
netmap support no
Linux AIO support no
ATTR/XATTR support yes
Install blobs yes
KVM support yes
HAX support no
RDMA support no
TCG interpreter no
fdt support yes
preadv support yes
fdatasync yes
madvise yes
posix_madvise yes
libcap-ng support no
vhost-net support yes
vhost-scsi support yes
vhost-vsock support yes
Trace backends log
spice support no
rbd support no
xfsctl support no
smartcard support no
libusb no
usb net redir no
OpenGL support no
OpenGL dmabufs no
libiscsi support no
libnfs support no
build guest agent yes
QGA VSS support no
QGA w32 disk info no
QGA MSI support no
seccomp support no
coroutine backend ucontext
coroutine pool yes
debug stack usage no
GlusterFS support no
gcov gcov
gcov enabled no
TPM support yes
libssh2 support no
TPM passthrough yes
QOM debugging yes
Live block migration yes
lzo support no
snappy support no
bzip2 support no
NUMA host support no
tcmalloc support no
jemalloc support no
avx2 optimization no
replication support yes
VxHS block device no
GEN x86_64-softmmu/config-devices.mak.tmp
mkdir -p dtc/libfdt
mkdir -p dtc/tests
GEN aarch64-softmmu/config-devices.mak.tmp
GEN config-host.h
GEN qemu-options.def
GEN qmp-commands.h
GEN qapi-types.h
GEN qapi-visit.h
GEN qapi-event.h
GEN qmp-marshal.c
GEN x86_64-softmmu/config-devices.mak
GEN aarch64-softmmu/config-devices.mak
GEN qapi-types.c
GEN qapi-visit.c
GEN qapi-event.c
GEN qmp-introspect.h
GEN qmp-introspect.c
GEN trace/generated-tcg-tracers.h
GEN trace/generated-helpers-wrappers.h
GEN trace/generated-helpers.h
GEN trace/generated-helpers.c
GEN module_block.h
GEN tests/test-qapi-types.h
GEN tests/test-qapi-visit.h
GEN tests/test-qmp-commands.h
GEN tests/test-qapi-event.h
GEN tests/test-qmp-introspect.h
GEN trace-root.h
GEN util/trace.h
GEN crypto/trace.h
GEN io/trace.h
GEN migration/trace.h
GEN block/trace.h
GEN backends/trace.h
GEN hw/block/trace.h
GEN hw/block/dataplane/trace.h
GEN hw/char/trace.h
GEN hw/intc/trace.h
GEN hw/net/trace.h
GEN hw/virtio/trace.h
GEN hw/audio/trace.h
GEN hw/misc/trace.h
GEN hw/usb/trace.h
GEN hw/scsi/trace.h
GEN hw/nvram/trace.h
GEN hw/display/trace.h
GEN hw/input/trace.h
GEN hw/timer/trace.h
GEN hw/dma/trace.h
GEN hw/sparc/trace.h
GEN hw/sd/trace.h
GEN hw/isa/trace.h
GEN hw/mem/trace.h
GEN hw/i386/trace.h
GEN hw/i386/xen/trace.h
GEN hw/9pfs/trace.h
GEN hw/ppc/trace.h
GEN hw/pci/trace.h
GEN hw/s390x/trace.h
GEN hw/vfio/trace.h
GEN hw/acpi/trace.h
GEN hw/arm/trace.h
GEN hw/alpha/trace.h
GEN hw/xen/trace.h
GEN ui/trace.h
GEN audio/trace.h
GEN net/trace.h
GEN target/arm/trace.h
GEN target/i386/trace.h
GEN target/mips/trace.h
GEN target/sparc/trace.h
GEN target/s390x/trace.h
GEN target/ppc/trace.h
GEN qom/trace.h
GEN linux-user/trace.h
GEN qapi/trace.h
GEN trace-root.c
GEN util/trace.c
GEN crypto/trace.c
GEN io/trace.c
GEN migration/trace.c
GEN block/trace.c
GEN backends/trace.c
GEN hw/block/trace.c
GEN hw/block/dataplane/trace.c
GEN hw/char/trace.c
GEN hw/intc/trace.c
GEN hw/net/trace.c
GEN hw/virtio/trace.c
GEN hw/audio/trace.c
GEN hw/misc/trace.c
GEN hw/usb/trace.c
GEN hw/scsi/trace.c
GEN hw/nvram/trace.c
GEN hw/display/trace.c
GEN hw/input/trace.c
GEN hw/timer/trace.c
GEN hw/dma/trace.c
GEN hw/sparc/trace.c
GEN hw/sd/trace.c
GEN hw/isa/trace.c
GEN hw/mem/trace.c
GEN hw/i386/trace.c
GEN hw/i386/xen/trace.c
GEN hw/9pfs/trace.c
GEN hw/ppc/trace.c
GEN hw/pci/trace.c
GEN hw/s390x/trace.c
GEN hw/vfio/trace.c
GEN hw/acpi/trace.c
GEN hw/arm/trace.c
GEN hw/alpha/trace.c
GEN hw/xen/trace.c
GEN ui/trace.c
GEN audio/trace.c
GEN net/trace.c
GEN target/arm/trace.c
GEN target/i386/trace.c
GEN target/mips/trace.c
GEN target/sparc/trace.c
GEN target/s390x/trace.c
GEN target/ppc/trace.c
GEN qom/trace.c
GEN linux-user/trace.c
GEN qapi/trace.c
GEN config-all-devices.mak
DEP /tmp/qemu-test/src/dtc/tests/dumptrees.c
DEP /tmp/qemu-test/src/dtc/tests/trees.S
DEP /tmp/qemu-test/src/dtc/tests/testutils.c
DEP /tmp/qemu-test/src/dtc/tests/value-labels.c
DEP /tmp/qemu-test/src/dtc/tests/asm_tree_dump.c
DEP /tmp/qemu-test/src/dtc/tests/truncated_property.c
DEP /tmp/qemu-test/src/dtc/tests/check_path.c
DEP /tmp/qemu-test/src/dtc/tests/overlay_bad_fixup.c
DEP /tmp/qemu-test/src/dtc/tests/overlay.c
DEP /tmp/qemu-test/src/dtc/tests/subnode_iterate.c
DEP /tmp/qemu-test/src/dtc/tests/integer-expressions.c
DEP /tmp/qemu-test/src/dtc/tests/property_iterate.c
DEP /tmp/qemu-test/src/dtc/tests/utilfdt_test.c
DEP /tmp/qemu-test/src/dtc/tests/path_offset_aliases.c
DEP /tmp/qemu-test/src/dtc/tests/add_subnode_with_nops.c
DEP /tmp/qemu-test/src/dtc/tests/dtbs_equal_unordered.c
DEP /tmp/qemu-test/src/dtc/tests/dtb_reverse.c
DEP /tmp/qemu-test/src/dtc/tests/dtbs_equal_ordered.c
DEP /tmp/qemu-test/src/dtc/tests/extra-terminating-null.c
DEP /tmp/qemu-test/src/dtc/tests/incbin.c
DEP /tmp/qemu-test/src/dtc/tests/boot-cpuid.c
DEP /tmp/qemu-test/src/dtc/tests/phandle_format.c
DEP /tmp/qemu-test/src/dtc/tests/path-references.c
DEP /tmp/qemu-test/src/dtc/tests/references.c
DEP /tmp/qemu-test/src/dtc/tests/string_escapes.c
DEP /tmp/qemu-test/src/dtc/tests/propname_escapes.c
DEP /tmp/qemu-test/src/dtc/tests/appendprop2.c
DEP /tmp/qemu-test/src/dtc/tests/appendprop1.c
DEP /tmp/qemu-test/src/dtc/tests/del_node.c
DEP /tmp/qemu-test/src/dtc/tests/del_property.c
DEP /tmp/qemu-test/src/dtc/tests/setprop.c
DEP /tmp/qemu-test/src/dtc/tests/set_name.c
DEP /tmp/qemu-test/src/dtc/tests/rw_tree1.c
DEP /tmp/qemu-test/src/dtc/tests/open_pack.c
DEP /tmp/qemu-test/src/dtc/tests/nopulate.c
DEP /tmp/qemu-test/src/dtc/tests/mangle-layout.c
DEP /tmp/qemu-test/src/dtc/tests/move_and_save.c
DEP /tmp/qemu-test/src/dtc/tests/sw_tree1.c
DEP /tmp/qemu-test/src/dtc/tests/nop_node.c
DEP /tmp/qemu-test/src/dtc/tests/nop_property.c
DEP /tmp/qemu-test/src/dtc/tests/setprop_inplace.c
DEP /tmp/qemu-test/src/dtc/tests/stringlist.c
DEP /tmp/qemu-test/src/dtc/tests/notfound.c
DEP /tmp/qemu-test/src/dtc/tests/addr_size_cells.c
DEP /tmp/qemu-test/src/dtc/tests/sized_cells.c
DEP /tmp/qemu-test/src/dtc/tests/char_literal.c
DEP /tmp/qemu-test/src/dtc/tests/get_alias.c
DEP /tmp/qemu-test/src/dtc/tests/node_offset_by_compatible.c
DEP /tmp/qemu-test/src/dtc/tests/node_check_compatible.c
DEP /tmp/qemu-test/src/dtc/tests/node_offset_by_phandle.c
DEP /tmp/qemu-test/src/dtc/tests/node_offset_by_prop_value.c
DEP /tmp/qemu-test/src/dtc/tests/parent_offset.c
DEP /tmp/qemu-test/src/dtc/tests/supernode_atdepth_offset.c
DEP /tmp/qemu-test/src/dtc/tests/get_path.c
DEP /tmp/qemu-test/src/dtc/tests/get_phandle.c
DEP /tmp/qemu-test/src/dtc/tests/getprop.c
DEP /tmp/qemu-test/src/dtc/tests/get_name.c
DEP /tmp/qemu-test/src/dtc/tests/path_offset.c
DEP /tmp/qemu-test/src/dtc/tests/subnode_offset.c
DEP /tmp/qemu-test/src/dtc/tests/find_property.c
DEP /tmp/qemu-test/src/dtc/tests/root_node.c
DEP /tmp/qemu-test/src/dtc/tests/get_mem_rsv.c
DEP /tmp/qemu-test/src/dtc/libfdt/fdt_overlay.c
DEP /tmp/qemu-test/src/dtc/libfdt/fdt_addresses.c
DEP /tmp/qemu-test/src/dtc/libfdt/fdt_empty_tree.c
DEP /tmp/qemu-test/src/dtc/libfdt/fdt_strerror.c
DEP /tmp/qemu-test/src/dtc/libfdt/fdt_rw.c
DEP /tmp/qemu-test/src/dtc/libfdt/fdt_sw.c
DEP /tmp/qemu-test/src/dtc/libfdt/fdt_wip.c
DEP /tmp/qemu-test/src/dtc/libfdt/fdt_ro.c
DEP /tmp/qemu-test/src/dtc/libfdt/fdt.c
DEP /tmp/qemu-test/src/dtc/util.c
DEP /tmp/qemu-test/src/dtc/fdtput.c
DEP /tmp/qemu-test/src/dtc/fdtget.c
DEP /tmp/qemu-test/src/dtc/fdtdump.c
LEX convert-dtsv0-lexer.lex.c
make[1]: flex: Command not found
DEP /tmp/qemu-test/src/dtc/srcpos.c
BISON dtc-parser.tab.c
make[1]: bison: Command not found
LEX dtc-lexer.lex.c
make[1]: flex: Command not found
DEP /tmp/qemu-test/src/dtc/treesource.c
DEP /tmp/qemu-test/src/dtc/fstree.c
DEP /tmp/qemu-test/src/dtc/livetree.c
DEP /tmp/qemu-test/src/dtc/flattree.c
DEP /tmp/qemu-test/src/dtc/dtc.c
DEP /tmp/qemu-test/src/dtc/data.c
DEP /tmp/qemu-test/src/dtc/checks.c
CHK version_gen.h
LEX convert-dtsv0-lexer.lex.c
BISON dtc-parser.tab.c
make[1]: flex: Command not found
make[1]: bison: Command not found
LEX dtc-lexer.lex.c
make[1]: flex: Command not found
UPD version_gen.h
DEP /tmp/qemu-test/src/dtc/util.c
LEX convert-dtsv0-lexer.lex.c
make[1]: flex: Command not found
BISON dtc-parser.tab.c
make[1]: bison: Command not found
LEX dtc-lexer.lex.c
make[1]: flex: Command not found
CC libfdt/fdt.o
CC libfdt/fdt_wip.o
CC libfdt/fdt_rw.o
CC libfdt/fdt_sw.o
CC libfdt/fdt_strerror.o
CC libfdt/fdt_ro.o
CC libfdt/fdt_empty_tree.o
CC libfdt/fdt_addresses.o
CC libfdt/fdt_overlay.o
AR libfdt/libfdt.a
ar: creating libfdt/libfdt.a
a - libfdt/fdt.o
a - libfdt/fdt_ro.o
a - libfdt/fdt_wip.o
a - libfdt/fdt_sw.o
a - libfdt/fdt_rw.o
a - libfdt/fdt_strerror.o
a - libfdt/fdt_empty_tree.o
a - libfdt/fdt_addresses.o
a - libfdt/fdt_overlay.o
BISON dtc-parser.tab.c
make[1]: bison: Command not found
LEX convert-dtsv0-lexer.lex.c
make[1]: flex: Command not found
LEX dtc-lexer.lex.c
make[1]: flex: Command not found
GEN qga/qapi-generated/qga-qapi-visit.h
CC tests/qemu-iotests/socket_scm_helper.o
GEN qga/qapi-generated/qga-qapi-types.h
GEN qga/qapi-generated/qga-qapi-types.c
GEN qga/qapi-generated/qga-qapi-visit.c
GEN qga/qapi-generated/qga-qmp-marshal.c
GEN qga/qapi-generated/qga-qmp-commands.h
CC qmp-introspect.o
CC qapi-types.o
CC qapi-visit.o
CC qapi-event.o
CC qapi/qapi-visit-core.o
CC qapi/qapi-dealloc-visitor.o
CC qapi/qobject-input-visitor.o
CC qapi/qobject-output-visitor.o
CC qapi/qmp-registry.o
CC qapi/qmp-dispatch.o
CC qapi/string-input-visitor.o
CC qapi/string-output-visitor.o
CC qapi/opts-visitor.o
CC qapi/qapi-clone-visitor.o
CC qapi/qmp-event.o
CC qapi/qapi-util.o
CC qobject/qint.o
CC qobject/qnull.o
CC qobject/qstring.o
CC qobject/qdict.o
CC qobject/qlist.o
CC qobject/qfloat.o
CC qobject/qbool.o
CC qobject/qjson.o
CC qobject/qobject.o
CC qobject/json-lexer.o
CC qobject/json-streamer.o
CC qobject/json-parser.o
CC trace/control.o
CC trace/qmp.o
CC util/osdep.o
CC util/cutils.o
CC util/unicode.o
CC util/qemu-timer-common.o
CC util/bufferiszero.o
CC util/lockcnt.o
CC util/aiocb.o
CC util/async.o
CC util/thread-pool.o
CC util/qemu-timer.o
CC util/main-loop.o
CC util/iohandler.o
CC util/aio-posix.o
CC util/compatfd.o
CC util/event_notifier-posix.o
CC util/mmap-alloc.o
CC util/oslib-posix.o
CC util/qemu-openpty.o
CC util/qemu-thread-posix.o
CC util/memfd.o
CC util/envlist.o
CC util/path.o
CC util/module.o
CC util/host-utils.o
CC util/bitmap.o
CC util/bitops.o
CC util/hbitmap.o
CC util/fifo8.o
CC util/acl.o
CC util/qemu-error.o
CC util/error.o
CC util/id.o
CC util/iov.o
CC util/qemu-config.o
CC util/qemu-sockets.o
CC util/uri.o
CC util/notify.o
CC util/qemu-option.o
CC util/qemu-progress.o
CC util/keyval.o
CC util/hexdump.o
CC util/crc32c.o
CC util/uuid.o
CC util/throttle.o
CC util/getauxval.o
CC util/readline.o
CC util/rcu.o
CC util/qemu-coroutine.o
CC util/qemu-coroutine-lock.o
CC util/qemu-coroutine-io.o
CC util/qemu-coroutine-sleep.o
CC util/coroutine-ucontext.o
CC util/buffer.o
CC util/timed-average.o
CC util/base64.o
CC util/log.o
CC util/qdist.o
CC util/qht.o
CC util/range.o
CC util/systemd.o
CC trace-root.o
CC util/trace.o
CC crypto/trace.o
CC io/trace.o
CC migration/trace.o
CC block/trace.o
CC backends/trace.o
CC hw/block/trace.o
CC hw/block/dataplane/trace.o
CC hw/char/trace.o
CC hw/intc/trace.o
CC hw/net/trace.o
CC hw/virtio/trace.o
CC hw/audio/trace.o
CC hw/misc/trace.o
CC hw/usb/trace.o
CC hw/scsi/trace.o
CC hw/nvram/trace.o
CC hw/display/trace.o
CC hw/input/trace.o
CC hw/timer/trace.o
CC hw/dma/trace.o
CC hw/sparc/trace.o
CC hw/sd/trace.o
CC hw/isa/trace.o
CC hw/mem/trace.o
CC hw/i386/trace.o
CC hw/i386/xen/trace.o
CC hw/9pfs/trace.o
CC hw/ppc/trace.o
CC hw/pci/trace.o
CC hw/s390x/trace.o
CC hw/vfio/trace.o
CC hw/acpi/trace.o
CC hw/arm/trace.o
CC hw/alpha/trace.o
CC hw/xen/trace.o
CC ui/trace.o
CC audio/trace.o
CC net/trace.o
CC target/arm/trace.o
CC target/i386/trace.o
CC target/mips/trace.o
CC target/sparc/trace.o
CC target/s390x/trace.o
CC target/ppc/trace.o
CC qom/trace.o
CC linux-user/trace.o
CC qapi/trace.o
CC crypto/pbkdf-stub.o
CC stubs/arch-query-cpu-model-expansion.o
CC stubs/arch-query-cpu-model-baseline.o
CC stubs/arch-query-cpu-model-comparison.o
CC stubs/arch-query-cpu-def.o
CC stubs/bdrv-next-monitor-owned.o
CC stubs/blockdev-close-all-bdrv-states.o
CC stubs/blk-commit-all.o
CC stubs/clock-warp.o
CC stubs/cpu-get-clock.o
CC stubs/cpu-get-icount.o
CC stubs/dump.o
CC stubs/error-printf.o
CC stubs/fdset.o
CC stubs/gdbstub.o
CC stubs/get-vm-name.o
CC stubs/iothread.o
CC stubs/iothread-lock.o
CC stubs/is-daemonized.o
CC stubs/machine-init-done.o
CC stubs/migr-blocker.o
CC stubs/monitor.o
CC stubs/notify-event.o
CC stubs/qtest.o
CC stubs/replay.o
CC stubs/runstate-check.o
CC stubs/set-fd-handler.o
CC stubs/slirp.o
CC stubs/trace-control.o
CC stubs/sysbus.o
CC stubs/uuid.o
CC stubs/vm-stop.o
CC stubs/vmstate.o
CC stubs/qmp_pc_dimm_device_list.o
CC stubs/target-monitor-defs.o
CC stubs/target-get-monitor-def.o
CC stubs/pc_madt_cpu_entry.o
CC stubs/xen-common.o
CC stubs/vmgenid.o
CC stubs/xen-hvm.o
CC contrib/ivshmem-client/ivshmem-client.o
CC contrib/ivshmem-client/main.o
CC contrib/ivshmem-server/ivshmem-server.o
CC contrib/ivshmem-server/main.o
CC block.o
CC blockjob.o
CC qemu-nbd.o
CC qemu-io-cmds.o
CC replication.o
CC block/raw-format.o
CC block/qcow.o
CC block/vdi.o
CC block/vmdk.o
CC block/cloop.o
CC block/bochs.o
CC block/vpc.o
CC block/vvfat.o
CC block/dmg.o
CC block/qcow2.o
CC block/qcow2-refcount.o
CC block/qcow2-cluster.o
CC block/qcow2-snapshot.o
CC block/qcow2-cache.o
CC block/qed.o
CC block/qed-gencb.o
CC block/qed-l2-cache.o
CC block/qed-table.o
CC block/qed-cluster.o
CC block/qed-check.o
CC block/vhdx.o
CC block/vhdx-endian.o
CC block/vhdx-log.o
CC block/quorum.o
CC block/parallels.o
CC block/blkdebug.o
CC block/blkverify.o
CC block/blkreplay.o
CC block/block-backend.o
CC block/snapshot.o
CC block/qapi.o
CC block/file-posix.o
CC block/null.o
CC block/mirror.o
CC block/commit.o
CC block/io.o
CC block/throttle-groups.o
CC block/nbd.o
CC block/nbd-client.o
CC block/sheepdog.o
CC block/accounting.o
CC block/dirty-bitmap.o
CC block/write-threshold.o
CC block/backup.o
CC block/replication.o
CC block/crypto.o
CC nbd/server.o
CC nbd/client.o
CC nbd/common.o
CC crypto/init.o
CC crypto/hash.o
CC crypto/hash-glib.o
CC crypto/hmac.o
CC crypto/hmac-glib.o
CC crypto/aes.o
CC crypto/desrfb.o
CC crypto/cipher.o
CC crypto/tlscreds.o
CC crypto/tlscredsanon.o
CC crypto/tlscredsx509.o
CC crypto/tlssession.o
CC crypto/secret.o
CC crypto/random-platform.o
CC crypto/pbkdf.o
CC crypto/ivgen.o
CC crypto/ivgen-essiv.o
CC crypto/ivgen-plain.o
CC crypto/ivgen-plain64.o
CC crypto/afsplit.o
CC crypto/xts.o
CC crypto/block.o
CC crypto/block-qcow.o
CC crypto/block-luks.o
CC io/channel.o
CC io/channel-buffer.o
CC io/channel-command.o
CC io/channel-file.o
CC io/channel-socket.o
CC io/channel-tls.o
CC io/channel-watch.o
CC io/channel-websock.o
CC io/channel-util.o
CC io/dns-resolver.o
CC io/task.o
CC qom/object.o
CC qom/container.o
CC qom/qom-qobject.o
CC qom/object_interfaces.o
GEN qemu-img-cmds.h
CC qemu-bridge-helper.o
CC blockdev.o
CC qemu-io.o
CC blockdev-nbd.o
CC iothread.o
CC qdev-monitor.o
CC device-hotplug.o
CC os-posix.o
CC accel.o
CC bt-host.o
CC bt-vhci.o
CC dma-helpers.o
CC vl.o
CC tpm.o
CC device_tree.o
CC qmp-marshal.o
CC qmp.o
CC hmp.o
CC cpus-common.o
CC audio/audio.o
CC audio/noaudio.o
CC audio/wavaudio.o
CC audio/mixeng.o
CC audio/sdlaudio.o
CC audio/ossaudio.o
CC audio/wavcapture.o
CC backends/rng.o
CC backends/rng-egd.o
CC backends/rng-random.o
CC backends/msmouse.o
CC backends/wctablet.o
CC backends/testdev.o
CC backends/tpm.o
CC backends/hostmem.o
CC backends/hostmem-ram.o
CC backends/hostmem-file.o
CC backends/cryptodev.o
CC backends/cryptodev-builtin.o
CC block/stream.o
CC disas/i386.o
CC disas/arm.o
CC fsdev/qemu-fsdev-dummy.o
CC fsdev/qemu-fsdev-opts.o
CC fsdev/qemu-fsdev-throttle.o
CC hw/acpi/core.o
CC hw/acpi/piix4.o
CC hw/acpi/pcihp.o
CC hw/acpi/ich9.o
CC hw/acpi/tco.o
CC hw/acpi/cpu_hotplug.o
CC hw/acpi/memory_hotplug.o
CC hw/acpi/cpu.o
CC hw/acpi/nvdimm.o
CC hw/acpi/vmgenid.o
CC hw/acpi/acpi_interface.o
CC hw/acpi/bios-linker-loader.o
CC hw/acpi/aml-build.o
CC hw/acpi/ipmi.o
CC hw/acpi/acpi-stub.o
CC hw/acpi/ipmi-stub.o
CC hw/audio/sb16.o
CC hw/audio/es1370.o
CC hw/audio/ac97.o
CC hw/audio/fmopl.o
CC hw/audio/adlib.o
CC hw/audio/gus.o
CC hw/audio/gusemu_hal.o
CC hw/audio/gusemu_mixer.o
CC hw/audio/cs4231a.o
CC hw/audio/intel-hda.o
CC hw/audio/hda-codec.o
CC hw/audio/pcspk.o
CC hw/audio/wm8750.o
CC hw/audio/pl041.o
CC hw/audio/lm4549.o
CC hw/audio/marvell_88w8618.o
CC hw/audio/soundhw.o
CC hw/block/block.o
CC hw/block/cdrom.o
CC hw/block/hd-geometry.o
CC hw/block/fdc.o
CC hw/block/m25p80.o
CC hw/block/nand.o
CC hw/block/pflash_cfi01.o
CC hw/block/pflash_cfi02.o
CC hw/block/ecc.o
CC hw/block/onenand.o
CC hw/block/nvme.o
CC hw/bt/core.o
CC hw/bt/l2cap.o
CC hw/bt/sdp.o
CC hw/bt/hci.o
CC hw/bt/hid.o
CC hw/bt/hci-csr.o
CC hw/char/ipoctal232.o
CC hw/char/parallel.o
CC hw/char/pl011.o
CC hw/char/serial.o
CC hw/char/serial-isa.o
CC hw/char/serial-pci.o
CC hw/char/virtio-console.o
CC hw/char/cadence_uart.o
CC hw/char/debugcon.o
CC hw/char/imx_serial.o
CC hw/core/qdev.o
CC hw/core/qdev-properties.o
CC hw/core/bus.o
CC hw/core/reset.o
CC hw/core/fw-path-provider.o
CC hw/core/irq.o
CC hw/core/hotplug.o
CC hw/core/nmi.o
CC hw/core/ptimer.o
CC hw/core/sysbus.o
CC hw/core/machine.o
CC hw/core/loader.o
CC hw/core/qdev-properties-system.o
CC hw/core/register.o
CC hw/core/or-irq.o
CC hw/core/platform-bus.o
CC hw/display/ads7846.o
CC hw/display/cirrus_vga.o
CC hw/display/pl110.o
CC hw/display/ssd0303.o
CC hw/display/ssd0323.o
CC hw/display/vga-pci.o
CC hw/display/vmware_vga.o
CC hw/display/vga-isa.o
CC hw/display/blizzard.o
CC hw/display/exynos4210_fimd.o
CC hw/display/tc6393xb.o
CC hw/display/framebuffer.o
CC hw/dma/pl080.o
CC hw/dma/pl330.o
CC hw/dma/i8257.o
CC hw/dma/xlnx-zynq-devcfg.o
CC hw/gpio/max7310.o
CC hw/gpio/pl061.o
CC hw/gpio/zaurus.o
CC hw/i2c/core.o
CC hw/gpio/gpio_key.o
CC hw/i2c/smbus.o
CC hw/i2c/smbus_eeprom.o
CC hw/i2c/i2c-ddc.o
CC hw/i2c/versatile_i2c.o
CC hw/i2c/smbus_ich9.o
CC hw/i2c/pm_smbus.o
CC hw/i2c/bitbang_i2c.o
CC hw/i2c/exynos4210_i2c.o
CC hw/i2c/imx_i2c.o
CC hw/i2c/aspeed_i2c.o
CC hw/ide/core.o
CC hw/ide/atapi.o
CC hw/ide/qdev.o
CC hw/ide/pci.o
CC hw/ide/isa.o
CC hw/ide/piix.o
CC hw/ide/microdrive.o
CC hw/ide/ahci.o
CC hw/ide/ich.o
CC hw/input/hid.o
CC hw/input/lm832x.o
CC hw/input/pckbd.o
CC hw/input/pl050.o
CC hw/input/ps2.o
CC hw/input/stellaris_input.o
CC hw/input/tsc2005.o
CC hw/input/vmmouse.o
CC hw/input/virtio-input.o
CC hw/input/virtio-input-hid.o
CC hw/input/virtio-input-host.o
CC hw/intc/i8259_common.o
CC hw/intc/i8259.o
CC hw/intc/pl190.o
CC hw/intc/imx_avic.o
CC hw/intc/realview_gic.o
CC hw/intc/ioapic_common.o
CC hw/intc/arm_gic_common.o
CC hw/intc/arm_gicv2m.o
CC hw/intc/arm_gic.o
CC hw/intc/arm_gicv3_common.o
CC hw/intc/arm_gicv3.o
CC hw/intc/arm_gicv3_dist.o
CC hw/intc/arm_gicv3_redist.o
CC hw/intc/arm_gicv3_its_common.o
CC hw/intc/intc.o
CC hw/ipack/ipack.o
CC hw/ipack/tpci200.o
CC hw/ipmi/ipmi.o
CC hw/ipmi/ipmi_bmc_sim.o
CC hw/ipmi/ipmi_bmc_extern.o
CC hw/ipmi/isa_ipmi_kcs.o
CC hw/ipmi/isa_ipmi_bt.o
CC hw/isa/isa-bus.o
CC hw/isa/apm.o
CC hw/mem/pc-dimm.o
CC hw/mem/nvdimm.o
CC hw/misc/applesmc.o
CC hw/misc/max111x.o
CC hw/misc/tmp105.o
CC hw/misc/sga.o
CC hw/misc/debugexit.o
CC hw/misc/pc-testdev.o
CC hw/misc/pci-testdev.o
CC hw/misc/unimp.o
CC hw/misc/arm_l2x0.o
CC hw/misc/arm_integrator_debug.o
CC hw/misc/a9scu.o
CC hw/misc/arm11scu.o
CC hw/net/ne2000.o
CC hw/net/eepro100.o
CC hw/net/pcnet-pci.o
CC hw/net/pcnet.o
CC hw/net/e1000.o
CC hw/net/e1000x_common.o
CC hw/net/net_tx_pkt.o
CC hw/net/net_rx_pkt.o
CC hw/net/e1000e.o
CC hw/net/e1000e_core.o
CC hw/net/rtl8139.o
CC hw/net/vmxnet3.o
CC hw/net/smc91c111.o
CC hw/net/lan9118.o
CC hw/net/ne2000-isa.o
CC hw/net/xgmac.o
CC hw/net/allwinner_emac.o
CC hw/net/imx_fec.o
CC hw/net/cadence_gem.o
CC hw/net/stellaris_enet.o
CC hw/net/ftgmac100.o
CC hw/net/rocker/rocker.o
CC hw/net/rocker/rocker_fp.o
CC hw/net/rocker/rocker_desc.o
CC hw/net/rocker/rocker_world.o
CC hw/net/rocker/rocker_of_dpa.o
CC hw/nvram/eeprom93xx.o
CC hw/nvram/fw_cfg.o
CC hw/nvram/chrp_nvram.o
CC hw/pci-bridge/pci_bridge_dev.o
CC hw/pci-bridge/pcie_root_port.o
CC hw/pci-bridge/gen_pcie_root_port.o
CC hw/pci-bridge/pci_expander_bridge.o
CC hw/pci-bridge/xio3130_upstream.o
CC hw/pci-bridge/xio3130_downstream.o
CC hw/pci-bridge/ioh3420.o
CC hw/pci-bridge/i82801b11.o
CC hw/pci-host/pam.o
CC hw/pci-host/versatile.o
CC hw/pci-host/piix.o
CC hw/pci-host/q35.o
CC hw/pci-host/gpex.o
CC hw/pci/pci.o
CC hw/pci/pci_bridge.o
CC hw/pci/msix.o
CC hw/pci/msi.o
CC hw/pci/shpc.o
CC hw/pci/slotid_cap.o
CC hw/pci/pci_host.o
CC hw/pci/pcie_host.o
CC hw/pci/pcie.o
CC hw/pci/pcie_aer.o
CC hw/pci/pcie_port.o
CC hw/pci/pci-stub.o
CC hw/pcmcia/pcmcia.o
CC hw/scsi/scsi-disk.o
CC hw/scsi/scsi-generic.o
CC hw/scsi/scsi-bus.o
CC hw/scsi/lsi53c895a.o
CC hw/scsi/mptsas.o
CC hw/scsi/mptconfig.o
CC hw/scsi/mptendian.o
CC hw/scsi/megasas.o
CC hw/scsi/vmw_pvscsi.o
CC hw/scsi/esp.o
CC hw/scsi/esp-pci.o
CC hw/sd/pl181.o
CC hw/sd/ssi-sd.o
CC hw/sd/sd.o
CC hw/sd/core.o
CC hw/sd/sdhci.o
CC hw/smbios/smbios.o
CC hw/smbios/smbios_type_38.o
CC hw/smbios/smbios-stub.o
CC hw/smbios/smbios_type_38-stub.o
CC hw/ssi/pl022.o
CC hw/ssi/ssi.o
CC hw/ssi/xilinx_spips.o
CC hw/ssi/aspeed_smc.o
CC hw/ssi/stm32f2xx_spi.o
CC hw/timer/arm_timer.o
CC hw/timer/arm_mptimer.o
CC hw/timer/armv7m_systick.o
CC hw/timer/a9gtimer.o
CC hw/timer/cadence_ttc.o
CC hw/timer/ds1338.o
CC hw/timer/hpet.o
CC hw/timer/i8254_common.o
CC hw/timer/i8254.o
CC hw/timer/pl031.o
CC hw/timer/twl92230.o
CC hw/timer/imx_epit.o
CC hw/timer/imx_gpt.o
CC hw/timer/stm32f2xx_timer.o
CC hw/timer/aspeed_timer.o
CC hw/tpm/tpm_passthrough.o
CC hw/tpm/tpm_tis.o
CC hw/tpm/tpm_util.o
CC hw/usb/core.o
CC hw/usb/combined-packet.o
CC hw/usb/bus.o
CC hw/usb/libhw.o
CC hw/usb/desc.o
CC hw/usb/desc-msos.o
CC hw/usb/hcd-uhci.o
CC hw/usb/hcd-ohci.o
CC hw/usb/hcd-ehci.o
CC hw/usb/hcd-ehci-pci.o
CC hw/usb/hcd-ehci-sysbus.o
CC hw/usb/hcd-xhci.o
CC hw/usb/hcd-xhci-nec.o
CC hw/usb/hcd-musb.o
CC hw/usb/dev-hub.o
CC hw/usb/dev-hid.o
CC hw/usb/dev-wacom.o
CC hw/usb/dev-storage.o
CC hw/usb/dev-uas.o
CC hw/usb/dev-audio.o
CC hw/usb/dev-serial.o
CC hw/usb/dev-network.o
CC hw/usb/dev-bluetooth.o
CC hw/usb/dev-smartcard-reader.o
CC hw/usb/dev-mtp.o
CC hw/usb/host-stub.o
CC hw/virtio/virtio-rng.o
CC hw/virtio/virtio-pci.o
CC hw/virtio/virtio-bus.o
CC hw/virtio/virtio-mmio.o
CC hw/virtio/vhost-stub.o
CC hw/watchdog/watchdog.o
CC hw/watchdog/wdt_ib700.o
CC hw/watchdog/wdt_i6300esb.o
CC hw/watchdog/wdt_aspeed.o
CC migration/migration.o
CC migration/socket.o
CC migration/fd.o
CC migration/exec.o
CC migration/tls.o
CC migration/channel.o
CC migration/savevm.o
CC migration/colo-comm.o
CC migration/colo.o
CC migration/colo-failover.o
CC migration/vmstate.o
CC migration/vmstate-types.o
CC migration/page_cache.o
CC migration/qemu-file.o
CC migration/qemu-file-channel.o
CC migration/xbzrle.o
CC migration/postcopy-ram.o
CC migration/qjson.o
CC migration/block.o
CC net/net.o
CC net/queue.o
CC net/util.o
CC net/checksum.o
CC net/hub.o
CC net/socket.o
CC net/dump.o
CC net/eth.o
CC net/l2tpv3.o
CC net/vhost-user.o
CC net/slirp.o
CC net/filter.o
CC net/filter-buffer.o
CC net/filter-mirror.o
CC net/colo-compare.o
CC net/filter-rewriter.o
CC net/colo.o
CC net/filter-replay.o
CC net/tap.o
CC net/tap-linux.o
CC qom/cpu.o
CC replay/replay.o
CC replay/replay-internal.o
CC replay/replay-events.o
CC replay/replay-time.o
CC replay/replay-input.o
CC replay/replay-char.o
CC replay/replay-snapshot.o
/tmp/qemu-test/src/replay/replay-internal.c: In function ‘replay_put_array’:
/tmp/qemu-test/src/replay/replay-internal.c:65: warning: ignoring return value of ‘fwrite’, declared with attribute warn_unused_result
CC replay/replay-net.o
CC replay/replay-audio.o
CC slirp/cksum.o
CC slirp/if.o
CC slirp/ip_icmp.o
CC slirp/ip6_icmp.o
CC slirp/ip6_input.o
CC slirp/ip6_output.o
CC slirp/ip_input.o
CC slirp/ip_output.o
CC slirp/dnssearch.o
CC slirp/dhcpv6.o
CC slirp/slirp.o
CC slirp/mbuf.o
CC slirp/misc.o
CC slirp/sbuf.o
CC slirp/socket.o
CC slirp/tcp_input.o
CC slirp/tcp_subr.o
CC slirp/tcp_output.o
CC slirp/tcp_timer.o
CC slirp/udp.o
CC slirp/udp6.o
CC slirp/bootp.o
/tmp/qemu-test/src/slirp/tcp_input.c: In function ‘tcp_input’:
/tmp/qemu-test/src/slirp/tcp_input.c:219: warning: ‘save_ip.ip_p’ may be used uninitialized in this function
/tmp/qemu-test/src/slirp/tcp_input.c:219: warning: ‘save_ip.ip_len’ may be used uninitialized in this function
/tmp/qemu-test/src/slirp/tcp_input.c:219: warning: ‘save_ip.ip_tos’ may be used uninitialized in this function
/tmp/qemu-test/src/slirp/tcp_input.c:219: warning: ‘save_ip.ip_id’ may be used uninitialized in this function
/tmp/qemu-test/src/slirp/tcp_input.c:219: warning: ‘save_ip.ip_off’ may be used uninitialized in this function
/tmp/qemu-test/src/slirp/tcp_input.c:219: warning: ‘save_ip.ip_ttl’ may be used uninitialized in this function
/tmp/qemu-test/src/slirp/tcp_input.c:219: warning: ‘save_ip.ip_sum’ may be used uninitialized in this function
/tmp/qemu-test/src/slirp/tcp_input.c:219: warning: ‘save_ip.ip_src.s_addr’ may be used uninitialized in this function
/tmp/qemu-test/src/slirp/tcp_input.c:219: warning: ‘save_ip.ip_dst.s_addr’ may be used uninitialized in this function
/tmp/qemu-test/src/slirp/tcp_input.c:220: warning: ‘save_ip6.ip_nh’ may be used uninitialized in this function
CC slirp/tftp.o
CC slirp/arp_table.o
CC slirp/ndp_table.o
CC slirp/ncsi.o
CC ui/keymaps.o
CC ui/console.o
CC ui/cursor.o
CC ui/qemu-pixman.o
CC ui/input.o
CC ui/input-keymap.o
CC ui/input-legacy.o
CC ui/input-linux.o
CC ui/sdl.o
CC ui/sdl_zoom.o
CC ui/x_keymap.o
CC ui/vnc.o
CC ui/vnc-enc-zlib.o
CC ui/vnc-enc-hextile.o
CC ui/vnc-enc-tight.o
CC ui/vnc-palette.o
CC ui/vnc-enc-zrle.o
CC ui/vnc-auth-vencrypt.o
CC ui/vnc-ws.o
CC ui/vnc-jobs.o
CC chardev/char.o
CC chardev/char-file.o
CC chardev/char-fd.o
CC chardev/char-io.o
CC chardev/char-mux.o
CC chardev/char-null.o
CC chardev/char-parallel.o
CC chardev/char-pipe.o
CC chardev/char-pty.o
CC chardev/char-ringbuf.o
CC chardev/char-serial.o
CC chardev/char-socket.o
CC chardev/char-stdio.o
CC chardev/char-udp.o
LINK tests/qemu-iotests/socket_scm_helper
CC qga/commands.o
CC qga/guest-agent-command-state.o
CC qga/main.o
CC qga/commands-posix.o
CC qga/channel-posix.o
CC qga/qapi-generated/qga-qapi-types.o
CC qga/qapi-generated/qga-qapi-visit.o
CC qga/qapi-generated/qga-qmp-marshal.o
AR libqemuutil.a
AR libqemustub.a
CC qemu-img.o
AS optionrom/multiboot.o
AS optionrom/linuxboot.o
CC optionrom/linuxboot_dma.o
AS optionrom/kvmvapic.o
BUILD optionrom/multiboot.img
BUILD optionrom/linuxboot.img
BUILD optionrom/multiboot.raw
BUILD optionrom/linuxboot.raw
BUILD optionrom/kvmvapic.img
BUILD optionrom/kvmvapic.raw
cc: unrecognized option '-no-integrated-as'
cc: unrecognized option '-no-integrated-as'
BUILD optionrom/linuxboot_dma.img
BUILD optionrom/linuxboot_dma.raw
SIGN optionrom/multiboot.bin
SIGN optionrom/linuxboot.bin
SIGN optionrom/kvmvapic.bin
SIGN optionrom/linuxboot_dma.bin
LINK ivshmem-client
LINK ivshmem-server
LINK qemu-nbd
LINK qemu-img
LINK qemu-io
LINK qemu-bridge-helper
LINK qemu-ga
GEN aarch64-softmmu/hmp-commands.h
GEN aarch64-softmmu/config-target.h
GEN aarch64-softmmu/hmp-commands-info.h
GEN x86_64-softmmu/hmp-commands-info.h
GEN x86_64-softmmu/config-target.h
GEN x86_64-softmmu/hmp-commands.h
CC aarch64-softmmu/cpu-exec.o
CC aarch64-softmmu/translate-common.o
CC aarch64-softmmu/tcg/tcg-op.o
CC aarch64-softmmu/tcg/tcg.o
CC aarch64-softmmu/translate-all.o
CC aarch64-softmmu/cpu-exec-common.o
CC x86_64-softmmu/exec.o
CC aarch64-softmmu/exec.o
CC aarch64-softmmu/tcg/optimize.o
CC aarch64-softmmu/tcg/tcg-common.o
CC x86_64-softmmu/translate-all.o
CC x86_64-softmmu/cpu-exec.o
CC x86_64-softmmu/translate-common.o
CC x86_64-softmmu/cpu-exec-common.o
CC aarch64-softmmu/fpu/softfloat.o
CC x86_64-softmmu/tcg/tcg.o
CC x86_64-softmmu/tcg/tcg-op.o
CC aarch64-softmmu/disas.o
CC aarch64-softmmu/tcg-runtime.o
GEN aarch64-softmmu/gdbstub-xml.c
CC aarch64-softmmu/hax-stub.o
CC x86_64-softmmu/tcg/optimize.o
CC aarch64-softmmu/kvm-stub.o
CC aarch64-softmmu/arch_init.o
CC aarch64-softmmu/cpus.o
CC aarch64-softmmu/monitor.o
CC x86_64-softmmu/tcg/tcg-common.o
CC aarch64-softmmu/gdbstub.o
CC aarch64-softmmu/balloon.o
CC aarch64-softmmu/ioport.o
CC aarch64-softmmu/numa.o
CC aarch64-softmmu/qtest.o
CC aarch64-softmmu/bootdevice.o
CC aarch64-softmmu/memory.o
CC aarch64-softmmu/cputlb.o
CC x86_64-softmmu/fpu/softfloat.o
CC x86_64-softmmu/disas.o
CC aarch64-softmmu/memory_mapping.o
CC aarch64-softmmu/dump.o
CC aarch64-softmmu/migration/ram.o
CC aarch64-softmmu/hw/adc/stm32f2xx_adc.o
CC aarch64-softmmu/hw/block/virtio-blk.o
CC aarch64-softmmu/hw/block/dataplane/virtio-blk.o
CC x86_64-softmmu/tcg-runtime.o
CC aarch64-softmmu/hw/char/exynos4210_uart.o
CC aarch64-softmmu/hw/char/omap_uart.o
CC aarch64-softmmu/hw/char/digic-uart.o
CC aarch64-softmmu/hw/char/stm32f2xx_usart.o
CC aarch64-softmmu/hw/char/bcm2835_aux.o
CC aarch64-softmmu/hw/char/virtio-serial-bus.o
CC aarch64-softmmu/hw/core/generic-loader.o
CC aarch64-softmmu/hw/core/null-machine.o
CC aarch64-softmmu/hw/cpu/arm11mpcore.o
GEN x86_64-softmmu/gdbstub-xml.c
CC aarch64-softmmu/hw/cpu/realview_mpcore.o
CC aarch64-softmmu/hw/cpu/a9mpcore.o
CC x86_64-softmmu/hax-stub.o
CC aarch64-softmmu/hw/cpu/a15mpcore.o
CC aarch64-softmmu/hw/cpu/core.o
CC aarch64-softmmu/hw/display/omap_dss.o
CC aarch64-softmmu/hw/display/omap_lcdc.o
CC x86_64-softmmu/arch_init.o
CC x86_64-softmmu/cpus.o
CC x86_64-softmmu/monitor.o
CC x86_64-softmmu/gdbstub.o
CC aarch64-softmmu/hw/display/pxa2xx_lcd.o
CC aarch64-softmmu/hw/display/bcm2835_fb.o
CC aarch64-softmmu/hw/display/vga.o
CC aarch64-softmmu/hw/display/virtio-gpu.o
CC x86_64-softmmu/balloon.o
CC x86_64-softmmu/ioport.o
CC aarch64-softmmu/hw/display/virtio-gpu-3d.o
CC aarch64-softmmu/hw/display/virtio-gpu-pci.o
CC x86_64-softmmu/numa.o
CC aarch64-softmmu/hw/display/dpcd.o
CC aarch64-softmmu/hw/display/xlnx_dp.o
CC x86_64-softmmu/qtest.o
CC aarch64-softmmu/hw/dma/xlnx_dpdma.o
CC aarch64-softmmu/hw/dma/omap_dma.o
CC aarch64-softmmu/hw/dma/soc_dma.o
CC aarch64-softmmu/hw/dma/pxa2xx_dma.o
CC x86_64-softmmu/bootdevice.o
CC aarch64-softmmu/hw/dma/bcm2835_dma.o
CC x86_64-softmmu/kvm-all.o
CC aarch64-softmmu/hw/gpio/omap_gpio.o
CC x86_64-softmmu/memory.o
CC aarch64-softmmu/hw/gpio/bcm2835_gpio.o
CC aarch64-softmmu/hw/gpio/imx_gpio.o
CC x86_64-softmmu/cputlb.o
CC aarch64-softmmu/hw/i2c/omap_i2c.o
CC aarch64-softmmu/hw/input/pxa2xx_keypad.o
CC aarch64-softmmu/hw/input/tsc210x.o
CC aarch64-softmmu/hw/intc/armv7m_nvic.o
CC aarch64-softmmu/hw/intc/exynos4210_gic.o
CC aarch64-softmmu/hw/intc/exynos4210_combiner.o
CC aarch64-softmmu/hw/intc/omap_intc.o
CC aarch64-softmmu/hw/intc/bcm2835_ic.o
CC aarch64-softmmu/hw/intc/bcm2836_control.o
CC aarch64-softmmu/hw/intc/allwinner-a10-pic.o
CC aarch64-softmmu/hw/intc/aspeed_vic.o
CC x86_64-softmmu/memory_mapping.o
CC aarch64-softmmu/hw/intc/arm_gicv3_cpuif.o
CC aarch64-softmmu/hw/misc/ivshmem.o
CC x86_64-softmmu/dump.o
CC aarch64-softmmu/hw/misc/arm_sysctl.o
CC x86_64-softmmu/migration/ram.o
CC aarch64-softmmu/hw/misc/exynos4210_pmu.o
CC aarch64-softmmu/hw/misc/cbus.o
CC x86_64-softmmu/hw/block/virtio-blk.o
CC x86_64-softmmu/hw/block/dataplane/virtio-blk.o
CC x86_64-softmmu/hw/char/virtio-serial-bus.o
CC x86_64-softmmu/hw/core/generic-loader.o
CC aarch64-softmmu/hw/misc/exynos4210_clk.o
CC x86_64-softmmu/hw/core/null-machine.o
CC aarch64-softmmu/hw/misc/imx_ccm.o
CC aarch64-softmmu/hw/misc/imx31_ccm.o
CC aarch64-softmmu/hw/misc/imx25_ccm.o
CC x86_64-softmmu/hw/cpu/core.o
CC x86_64-softmmu/hw/display/vga.o
CC aarch64-softmmu/hw/misc/imx6_ccm.o
CC x86_64-softmmu/hw/display/virtio-gpu.o
CC aarch64-softmmu/hw/misc/imx6_src.o
CC aarch64-softmmu/hw/misc/mst_fpga.o
CC x86_64-softmmu/hw/display/virtio-gpu-3d.o
CC aarch64-softmmu/hw/misc/omap_clk.o
CC x86_64-softmmu/hw/display/virtio-gpu-pci.o
CC x86_64-softmmu/hw/display/virtio-vga.o
CC aarch64-softmmu/hw/misc/omap_gpmc.o
CC x86_64-softmmu/hw/intc/apic.o
CC aarch64-softmmu/hw/misc/omap_l4.o
CC x86_64-softmmu/hw/intc/apic_common.o
CC aarch64-softmmu/hw/misc/omap_sdrc.o
CC aarch64-softmmu/hw/misc/omap_tap.o
CC aarch64-softmmu/hw/misc/bcm2835_mbox.o
CC x86_64-softmmu/hw/intc/ioapic.o
CC aarch64-softmmu/hw/misc/bcm2835_property.o
CC aarch64-softmmu/hw/misc/bcm2835_rng.o
CC aarch64-softmmu/hw/misc/zynq_slcr.o
CC aarch64-softmmu/hw/misc/zynq-xadc.o
CC aarch64-softmmu/hw/misc/stm32f2xx_syscfg.o
CC x86_64-softmmu/hw/isa/lpc_ich9.o
CC x86_64-softmmu/hw/misc/vmport.o
CC x86_64-softmmu/hw/misc/ivshmem.o
CC aarch64-softmmu/hw/misc/edu.o
CC aarch64-softmmu/hw/misc/auxbus.o
CC aarch64-softmmu/hw/misc/aspeed_scu.o
CC x86_64-softmmu/hw/misc/pvpanic.o
CC x86_64-softmmu/hw/misc/edu.o
CC aarch64-softmmu/hw/misc/aspeed_sdmc.o
CC aarch64-softmmu/hw/net/vhost_net.o
CC aarch64-softmmu/hw/scsi/virtio-scsi.o
CC aarch64-softmmu/hw/pcmcia/pxa2xx.o
CC aarch64-softmmu/hw/net/virtio-net.o
CC x86_64-softmmu/hw/misc/hyperv_testdev.o
CC x86_64-softmmu/hw/net/virtio-net.o
CC x86_64-softmmu/hw/net/vhost_net.o
CC aarch64-softmmu/hw/scsi/virtio-scsi-dataplane.o
CC x86_64-softmmu/hw/scsi/virtio-scsi.o
CC x86_64-softmmu/hw/scsi/virtio-scsi-dataplane.o
CC x86_64-softmmu/hw/scsi/vhost-scsi-common.o
CC aarch64-softmmu/hw/scsi/vhost-scsi-common.o
CC aarch64-softmmu/hw/scsi/vhost-scsi.o
CC x86_64-softmmu/hw/scsi/vhost-scsi.o
CC aarch64-softmmu/hw/scsi/vhost-user-scsi.o
CC x86_64-softmmu/hw/scsi/vhost-user-scsi.o
CC x86_64-softmmu/hw/timer/mc146818rtc.o
CC aarch64-softmmu/hw/sd/omap_mmc.o
CC aarch64-softmmu/hw/sd/pxa2xx_mmci.o
CC aarch64-softmmu/hw/sd/bcm2835_sdhost.o
CC x86_64-softmmu/hw/vfio/common.o
CC x86_64-softmmu/hw/vfio/pci.o
CC x86_64-softmmu/hw/vfio/pci-quirks.o
CC x86_64-softmmu/hw/vfio/platform.o
CC aarch64-softmmu/hw/ssi/omap_spi.o
CC aarch64-softmmu/hw/ssi/imx_spi.o
CC aarch64-softmmu/hw/timer/exynos4210_mct.o
CC aarch64-softmmu/hw/timer/exynos4210_pwm.o
CC x86_64-softmmu/hw/vfio/spapr.o
CC aarch64-softmmu/hw/timer/exynos4210_rtc.o
CC aarch64-softmmu/hw/timer/omap_gptimer.o
CC aarch64-softmmu/hw/timer/omap_synctimer.o
CC aarch64-softmmu/hw/timer/pxa2xx_timer.o
CC aarch64-softmmu/hw/timer/digic-timer.o
CC aarch64-softmmu/hw/timer/allwinner-a10-pit.o
CC aarch64-softmmu/hw/usb/tusb6010.o
CC x86_64-softmmu/hw/virtio/virtio.o
CC aarch64-softmmu/hw/vfio/pci.o
CC aarch64-softmmu/hw/vfio/common.o
CC aarch64-softmmu/hw/vfio/pci-quirks.o
CC aarch64-softmmu/hw/vfio/platform.o
CC aarch64-softmmu/hw/vfio/calxeda-xgmac.o
CC aarch64-softmmu/hw/vfio/amd-xgbe.o
CC aarch64-softmmu/hw/vfio/spapr.o
CC x86_64-softmmu/hw/virtio/virtio-balloon.o
CC x86_64-softmmu/hw/virtio/vhost.o
CC aarch64-softmmu/hw/virtio/virtio.o
CC x86_64-softmmu/hw/virtio/vhost-backend.o
CC aarch64-softmmu/hw/virtio/virtio-balloon.o
CC x86_64-softmmu/hw/virtio/vhost-user.o
CC x86_64-softmmu/hw/virtio/vhost-vsock.o
CC x86_64-softmmu/hw/virtio/virtio-crypto.o
CC aarch64-softmmu/hw/virtio/vhost.o
CC aarch64-softmmu/hw/virtio/vhost-backend.o
CC aarch64-softmmu/hw/virtio/vhost-user.o
CC aarch64-softmmu/hw/virtio/vhost-vsock.o
CC x86_64-softmmu/hw/virtio/virtio-crypto-pci.o
CC x86_64-softmmu/hw/i386/multiboot.o
CC aarch64-softmmu/hw/virtio/virtio-crypto.o
CC aarch64-softmmu/hw/virtio/virtio-crypto-pci.o
CC aarch64-softmmu/hw/arm/boot.o
CC aarch64-softmmu/hw/arm/collie.o
CC aarch64-softmmu/hw/arm/exynos4_boards.o
CC x86_64-softmmu/hw/i386/pc.o
CC aarch64-softmmu/hw/arm/gumstix.o
CC aarch64-softmmu/hw/arm/highbank.o
CC aarch64-softmmu/hw/arm/digic_boards.o
CC x86_64-softmmu/hw/i386/pc_piix.o
CC aarch64-softmmu/hw/arm/integratorcp.o
CC x86_64-softmmu/hw/i386/pc_q35.o
CC x86_64-softmmu/hw/i386/pc_sysfw.o
CC aarch64-softmmu/hw/arm/mainstone.o
CC aarch64-softmmu/hw/arm/musicpal.o
CC aarch64-softmmu/hw/arm/nseries.o
CC x86_64-softmmu/hw/i386/x86-iommu.o
CC aarch64-softmmu/hw/arm/omap_sx1.o
CC aarch64-softmmu/hw/arm/palm.o
CC x86_64-softmmu/hw/i386/intel_iommu.o
CC aarch64-softmmu/hw/arm/realview.o
CC aarch64-softmmu/hw/arm/spitz.o
CC x86_64-softmmu/hw/i386/amd_iommu.o
CC x86_64-softmmu/hw/i386/kvmvapic.o
CC aarch64-softmmu/hw/arm/stellaris.o
CC x86_64-softmmu/hw/i386/acpi-build.o
CC aarch64-softmmu/hw/arm/tosa.o
CC x86_64-softmmu/hw/i386/pci-assign-load-rom.o
CC x86_64-softmmu/hw/i386/kvm/clock.o
CC aarch64-softmmu/hw/arm/versatilepb.o
CC x86_64-softmmu/hw/i386/kvm/apic.o
CC aarch64-softmmu/hw/arm/vexpress.o
CC aarch64-softmmu/hw/arm/virt.o
CC aarch64-softmmu/hw/arm/xilinx_zynq.o
CC aarch64-softmmu/hw/arm/z2.o
CC aarch64-softmmu/hw/arm/virt-acpi-build.o
CC aarch64-softmmu/hw/arm/netduino2.o
CC x86_64-softmmu/hw/i386/kvm/i8259.o
CC aarch64-softmmu/hw/arm/sysbus-fdt.o
CC aarch64-softmmu/hw/arm/armv7m.o
CC aarch64-softmmu/hw/arm/exynos4210.o
/tmp/qemu-test/src/hw/i386/pc_piix.c: In function ‘igd_passthrough_isa_bridge_create’:
/tmp/qemu-test/src/hw/i386/pc_piix.c:1067: warning: ‘pch_rev_id’ may be used uninitialized in this function
CC aarch64-softmmu/hw/arm/pxa2xx.o
CC x86_64-softmmu/hw/i386/kvm/ioapic.o
CC aarch64-softmmu/hw/arm/pxa2xx_gpio.o
CC x86_64-softmmu/hw/i386/kvm/i8254.o
CC aarch64-softmmu/hw/arm/pxa2xx_pic.o
CC x86_64-softmmu/hw/i386/kvm/pci-assign.o
CC x86_64-softmmu/target/i386/translate.o
CC aarch64-softmmu/hw/arm/digic.o
CC aarch64-softmmu/hw/arm/omap1.o
CC aarch64-softmmu/hw/arm/omap2.o
CC aarch64-softmmu/hw/arm/strongarm.o
CC x86_64-softmmu/target/i386/helper.o
CC aarch64-softmmu/hw/arm/allwinner-a10.o
CC aarch64-softmmu/hw/arm/cubieboard.o
CC aarch64-softmmu/hw/arm/bcm2835_peripherals.o
CC aarch64-softmmu/hw/arm/bcm2836.o
CC x86_64-softmmu/target/i386/cpu.o
CC x86_64-softmmu/target/i386/bpt_helper.o
/tmp/qemu-test/src/hw/i386/acpi-build.c: In function ‘build_append_pci_bus_devices’:
/tmp/qemu-test/src/hw/i386/acpi-build.c:525: warning: ‘notify_method’ may be used uninitialized in this function
CC x86_64-softmmu/target/i386/excp_helper.o
CC aarch64-softmmu/hw/arm/raspi.o
CC aarch64-softmmu/hw/arm/stm32f205_soc.o
CC x86_64-softmmu/target/i386/fpu_helper.o
CC aarch64-softmmu/hw/arm/xlnx-zynqmp.o
CC x86_64-softmmu/target/i386/cc_helper.o
CC aarch64-softmmu/hw/arm/xlnx-ep108.o
CC aarch64-softmmu/hw/arm/fsl-imx25.o
CC aarch64-softmmu/hw/arm/imx25_pdk.o
CC aarch64-softmmu/hw/arm/fsl-imx31.o
CC aarch64-softmmu/hw/arm/kzm.o
CC aarch64-softmmu/hw/arm/fsl-imx6.o
CC aarch64-softmmu/hw/arm/sabrelite.o
CC aarch64-softmmu/hw/arm/aspeed_soc.o
CC aarch64-softmmu/hw/arm/aspeed.o
CC aarch64-softmmu/target/arm/arm-semi.o
CC aarch64-softmmu/target/arm/machine.o
CC aarch64-softmmu/target/arm/psci.o
CC aarch64-softmmu/target/arm/arch_dump.o
CC aarch64-softmmu/target/arm/monitor.o
CC aarch64-softmmu/target/arm/kvm-stub.o
CC aarch64-softmmu/target/arm/translate.o
CC aarch64-softmmu/target/arm/op_helper.o
CC aarch64-softmmu/target/arm/helper.o
CC aarch64-softmmu/target/arm/cpu.o
CC aarch64-softmmu/target/arm/neon_helper.o
CC x86_64-softmmu/target/i386/int_helper.o
CC aarch64-softmmu/target/arm/iwmmxt_helper.o
CC aarch64-softmmu/target/arm/gdbstub.o
CC x86_64-softmmu/target/i386/svm_helper.o
CC x86_64-softmmu/target/i386/smm_helper.o
CC aarch64-softmmu/target/arm/cpu64.o
CC aarch64-softmmu/target/arm/translate-a64.o
CC x86_64-softmmu/target/i386/misc_helper.o
CC x86_64-softmmu/target/i386/mem_helper.o
CC x86_64-softmmu/target/i386/seg_helper.o
CC x86_64-softmmu/target/i386/mpx_helper.o
CC x86_64-softmmu/target/i386/gdbstub.o
/tmp/qemu-test/src/target/arm/translate-a64.c: In function ‘handle_shri_with_rndacc’:
/tmp/qemu-test/src/target/arm/translate-a64.c:6359: warning: ‘tcg_src_hi’ may be used uninitialized in this function
/tmp/qemu-test/src/target/arm/translate-a64.c: In function ‘disas_simd_scalar_two_reg_misc’:
/tmp/qemu-test/src/target/arm/translate-a64.c:8086: warning: ‘rmode’ may be used uninitialized in this function
CC aarch64-softmmu/target/arm/gdbstub64.o
CC x86_64-softmmu/target/i386/kvm.o
CC x86_64-softmmu/target/i386/monitor.o
CC x86_64-softmmu/target/i386/arch_memory_mapping.o
CC x86_64-softmmu/target/i386/arch_dump.o
CC x86_64-softmmu/target/i386/machine.o
CC aarch64-softmmu/target/arm/helper-a64.o
CC aarch64-softmmu/target/arm/crypto_helper.o
CC aarch64-softmmu/target/arm/arm-powerctl.o
CC x86_64-softmmu/target/i386/hyperv.o
GEN trace/generated-helpers.c
CC aarch64-softmmu/trace/control-target.o
GEN trace/generated-helpers.c
CC x86_64-softmmu/trace/control-target.o
CC aarch64-softmmu/gdbstub-xml.o
CC x86_64-softmmu/gdbstub-xml.o
CC aarch64-softmmu/trace/generated-helpers.o
CC x86_64-softmmu/trace/generated-helpers.o
LINK aarch64-softmmu/qemu-system-aarch64
LINK x86_64-softmmu/qemu-system-x86_64
LEX convert-dtsv0-lexer.lex.c
LEX dtc-lexer.lex.c
BISON dtc-parser.tab.c
make[1]: flex: Command not found
make[1]: flex: Command not found
make[1]: bison: Command not found
TEST tests/qapi-schema/alternate-any.out
TEST tests/qapi-schema/alternate-base.out
TEST tests/qapi-schema/alternate-array.out
TEST tests/qapi-schema/alternate-conflict-string.out
TEST tests/qapi-schema/alternate-empty.out
TEST tests/qapi-schema/alternate-conflict-dict.out
TEST tests/qapi-schema/alternate-clash.out
TEST tests/qapi-schema/alternate-nested.out
TEST tests/qapi-schema/alternate-unknown.out
TEST tests/qapi-schema/args-alternate.out
TEST tests/qapi-schema/args-any.out
TEST tests/qapi-schema/args-array-empty.out
TEST tests/qapi-schema/args-array-unknown.out
TEST tests/qapi-schema/args-bad-boxed.out
TEST tests/qapi-schema/args-boxed-anon.out
TEST tests/qapi-schema/args-boxed-empty.out
TEST tests/qapi-schema/args-boxed-string.out
TEST tests/qapi-schema/args-int.out
TEST tests/qapi-schema/args-invalid.out
TEST tests/qapi-schema/args-member-array-bad.out
TEST tests/qapi-schema/args-member-case.out
TEST tests/qapi-schema/args-member-unknown.out
TEST tests/qapi-schema/args-name-clash.out
TEST tests/qapi-schema/args-union.out
TEST tests/qapi-schema/args-unknown.out
TEST tests/qapi-schema/bad-base.out
TEST tests/qapi-schema/bad-data.out
TEST tests/qapi-schema/bad-ident.out
TEST tests/qapi-schema/bad-type-bool.out
TEST tests/qapi-schema/bad-type-dict.out
TEST tests/qapi-schema/bad-type-int.out
TEST tests/qapi-schema/base-cycle-direct.out
TEST tests/qapi-schema/base-cycle-indirect.out
TEST tests/qapi-schema/command-int.out
TEST tests/qapi-schema/comments.out
TEST tests/qapi-schema/doc-bad-alternate-member.out
TEST tests/qapi-schema/doc-bad-command-arg.out
TEST tests/qapi-schema/doc-bad-symbol.out
TEST tests/qapi-schema/doc-bad-union-member.out
TEST tests/qapi-schema/doc-before-include.out
TEST tests/qapi-schema/doc-before-pragma.out
TEST tests/qapi-schema/doc-duplicated-arg.out
TEST tests/qapi-schema/doc-duplicated-since.out
TEST tests/qapi-schema/doc-duplicated-return.out
TEST tests/qapi-schema/doc-empty-arg.out
TEST tests/qapi-schema/doc-empty-section.out
TEST tests/qapi-schema/doc-empty-symbol.out
TEST tests/qapi-schema/doc-good.out
TEST tests/qapi-schema/doc-interleaved-section.out
TEST tests/qapi-schema/doc-invalid-end.out
TEST tests/qapi-schema/doc-invalid-end2.out
TEST tests/qapi-schema/doc-invalid-return.out
TEST tests/qapi-schema/doc-invalid-section.out
TEST tests/qapi-schema/doc-invalid-start.out
TEST tests/qapi-schema/doc-missing.out
TEST tests/qapi-schema/doc-missing-colon.out
TEST tests/qapi-schema/doc-missing-expr.out
TEST tests/qapi-schema/doc-missing-space.out
TEST tests/qapi-schema/doc-no-symbol.out
TEST tests/qapi-schema/double-data.out
TEST tests/qapi-schema/double-type.out
TEST tests/qapi-schema/duplicate-key.out
TEST tests/qapi-schema/empty.out
TEST tests/qapi-schema/enum-bad-name.out
TEST tests/qapi-schema/enum-bad-prefix.out
TEST tests/qapi-schema/enum-clash-member.out
TEST tests/qapi-schema/enum-dict-member.out
TEST tests/qapi-schema/enum-int-member.out
TEST tests/qapi-schema/enum-member-case.out
TEST tests/qapi-schema/enum-missing-data.out
TEST tests/qapi-schema/enum-wrong-data.out
TEST tests/qapi-schema/escape-outside-string.out
TEST tests/qapi-schema/escape-too-big.out
TEST tests/qapi-schema/escape-too-short.out
TEST tests/qapi-schema/event-boxed-empty.out
TEST tests/qapi-schema/event-nest-struct.out
TEST tests/qapi-schema/event-case.out
TEST tests/qapi-schema/flat-union-bad-base.out
TEST tests/qapi-schema/flat-union-array-branch.out
TEST tests/qapi-schema/flat-union-bad-discriminator.out
TEST tests/qapi-schema/flat-union-base-any.out
TEST tests/qapi-schema/flat-union-base-union.out
TEST tests/qapi-schema/flat-union-clash-member.out
TEST tests/qapi-schema/flat-union-empty.out
TEST tests/qapi-schema/flat-union-incomplete-branch.out
TEST tests/qapi-schema/flat-union-inline.out
TEST tests/qapi-schema/flat-union-int-branch.out
TEST tests/qapi-schema/flat-union-invalid-branch-key.out
TEST tests/qapi-schema/flat-union-invalid-discriminator.out
TEST tests/qapi-schema/flat-union-no-base.out
TEST tests/qapi-schema/flat-union-optional-discriminator.out
TEST tests/qapi-schema/flat-union-string-discriminator.out
TEST tests/qapi-schema/funny-char.out
TEST tests/qapi-schema/ident-with-escape.out
TEST tests/qapi-schema/include-cycle.out
TEST tests/qapi-schema/include-before-err.out
TEST tests/qapi-schema/include-extra-junk.out
TEST tests/qapi-schema/include-format-err.out
TEST tests/qapi-schema/include-nested-err.out
TEST tests/qapi-schema/include-no-file.out
TEST tests/qapi-schema/include-non-file.out
TEST tests/qapi-schema/include-relpath.out
TEST tests/qapi-schema/include-repetition.out
TEST tests/qapi-schema/include-self-cycle.out
TEST tests/qapi-schema/include-simple.out
TEST tests/qapi-schema/indented-expr.out
TEST tests/qapi-schema/leading-comma-list.out
TEST tests/qapi-schema/leading-comma-object.out
TEST tests/qapi-schema/missing-colon.out
TEST tests/qapi-schema/missing-comma-list.out
TEST tests/qapi-schema/missing-comma-object.out
TEST tests/qapi-schema/missing-type.out
TEST tests/qapi-schema/non-objects.out
TEST tests/qapi-schema/nested-struct-data.out
TEST tests/qapi-schema/pragma-doc-required-crap.out
TEST tests/qapi-schema/pragma-extra-junk.out
TEST tests/qapi-schema/pragma-name-case-whitelist-crap.out
TEST tests/qapi-schema/pragma-non-dict.out
TEST tests/qapi-schema/pragma-returns-whitelist-crap.out
TEST tests/qapi-schema/qapi-schema-test.out
TEST tests/qapi-schema/quoted-structural-chars.out
TEST tests/qapi-schema/redefined-builtin.out
TEST tests/qapi-schema/redefined-command.out
TEST tests/qapi-schema/redefined-event.out
TEST tests/qapi-schema/redefined-type.out
TEST tests/qapi-schema/reserved-command-q.out
TEST tests/qapi-schema/reserved-enum-q.out
TEST tests/qapi-schema/reserved-member-has.out
TEST tests/qapi-schema/reserved-member-q.out
TEST tests/qapi-schema/reserved-member-u.out
TEST tests/qapi-schema/reserved-member-underscore.out
TEST tests/qapi-schema/reserved-type-kind.out
TEST tests/qapi-schema/reserved-type-list.out
TEST tests/qapi-schema/returns-alternate.out
TEST tests/qapi-schema/returns-array-bad.out
TEST tests/qapi-schema/returns-dict.out
TEST tests/qapi-schema/returns-unknown.out
TEST tests/qapi-schema/returns-whitelist.out
TEST tests/qapi-schema/struct-base-clash-deep.out
TEST tests/qapi-schema/struct-base-clash.out
TEST tests/qapi-schema/struct-data-invalid.out
TEST tests/qapi-schema/struct-member-invalid.out
TEST tests/qapi-schema/trailing-comma-list.out
TEST tests/qapi-schema/trailing-comma-object.out
TEST tests/qapi-schema/type-bypass-bad-gen.out
TEST tests/qapi-schema/unclosed-list.out
TEST tests/qapi-schema/unclosed-object.out
TEST tests/qapi-schema/unclosed-string.out
TEST tests/qapi-schema/unicode-str.out
TEST tests/qapi-schema/union-base-empty.out
TEST tests/qapi-schema/union-base-no-discriminator.out
TEST tests/qapi-schema/union-branch-case.out
TEST tests/qapi-schema/union-clash-branches.out
TEST tests/qapi-schema/union-empty.out
TEST tests/qapi-schema/union-invalid-base.out
TEST tests/qapi-schema/union-optional-branch.out
TEST tests/qapi-schema/union-unknown.out
TEST tests/qapi-schema/unknown-escape.out
TEST tests/qapi-schema/unknown-expr-key.out
GEN tests/qapi-schema/doc-good.test.texi
CC tests/check-qdict.o
CC tests/test-char.o
CC tests/check-qint.o
CC tests/check-qfloat.o
CC tests/check-qstring.o
CC tests/check-qlist.o
CC tests/check-qnull.o
CC tests/check-qjson.o
CC tests/test-qobject-output-visitor.o
GEN tests/test-qapi-visit.c
GEN tests/test-qapi-types.c
GEN tests/test-qapi-event.c
GEN tests/test-qmp-introspect.c
CC tests/test-clone-visitor.o
CC tests/test-qobject-input-visitor.o
CC tests/test-qmp-commands.o
GEN tests/test-qmp-marshal.c
CC tests/test-string-input-visitor.o
CC tests/test-string-output-visitor.o
CC tests/test-qmp-event.o
CC tests/test-coroutine.o
CC tests/test-opts-visitor.o
CC tests/iothread.o
CC tests/test-visitor-serialization.o
CC tests/test-iov.o
CC tests/test-aio.o
CC tests/test-aio-multithread.o
CC tests/test-throttle.o
CC tests/test-thread-pool.o
CC tests/test-hbitmap.o
CC tests/test-blockjob.o
CC tests/test-blockjob-txn.o
CC tests/test-x86-cpuid.o
CC tests/test-xbzrle.o
CC tests/test-vmstate.o
CC tests/test-cutils.o
CC tests/test-shift128.o
CC tests/test-mul64.o
CC tests/test-int128.o
CC tests/rcutorture.o
CC tests/test-rcu-list.o
CC tests/test-qdist.o
CC tests/test-qht.o
CC tests/test-qht-par.o
/tmp/qemu-test/src/tests/test-int128.c:180: warning: ‘__noclone__’ attribute directive ignored
CC tests/qht-bench.o
CC tests/test-bitops.o
CC tests/test-bitcnt.o
CC tests/check-qom-interface.o
CC tests/check-qom-proplist.o
CC tests/test-qemu-opts.o
CC tests/test-keyval.o
CC tests/test-write-threshold.o
CC tests/test-crypto-hash.o
CC tests/test-crypto-hmac.o
CC tests/test-crypto-cipher.o
CC tests/test-qga.o
CC tests/test-crypto-secret.o
CC tests/libqtest.o
CC tests/test-timed-average.o
CC tests/test-io-task.o
CC tests/test-io-channel-socket.o
CC tests/io-channel-helpers.o
CC tests/test-io-channel-file.o
CC tests/test-io-channel-command.o
CC tests/test-io-channel-buffer.o
CC tests/test-base64.o
CC tests/test-crypto-ivgen.o
CC tests/test-crypto-afsplit.o
CC tests/test-crypto-xts.o
CC tests/test-crypto-block.o
CC tests/test-logging.o
CC tests/test-replication.o
CC tests/test-bufferiszero.o
CC tests/test-uuid.o
CC tests/ptimer-test.o
CC tests/ptimer-test-stubs.o
CC tests/test-qapi-util.o
CC tests/vhost-user-test.o
CC tests/libqos/pci.o
CC tests/libqos/fw_cfg.o
CC tests/libqos/malloc.o
CC tests/libqos/i2c.o
CC tests/libqos/libqos.o
CC tests/libqos/malloc-spapr.o
CC tests/libqos/libqos-spapr.o
CC tests/libqos/pci-spapr.o
CC tests/libqos/rtas.o
CC tests/libqos/pci-pc.o
CC tests/libqos/malloc-pc.o
CC tests/libqos/libqos-pc.o
CC tests/libqos/ahci.o
CC tests/libqos/virtio.o
CC tests/libqos/virtio-pci.o
CC tests/libqos/virtio-mmio.o
CC tests/libqos/malloc-generic.o
CC tests/endianness-test.o
CC tests/fdc-test.o
CC tests/ide-test.o
CC tests/hd-geo-test.o
CC tests/ahci-test.o
CC tests/boot-order-test.o
/tmp/qemu-test/src/tests/ide-test.c: In function ‘cdrom_pio_impl’:
/tmp/qemu-test/src/tests/ide-test.c:803: warning: ignoring return value of ‘fwrite’, declared with attribute warn_unused_result
/tmp/qemu-test/src/tests/ide-test.c: In function ‘test_cdrom_dma’:
/tmp/qemu-test/src/tests/ide-test.c:899: warning: ignoring return value of ‘fwrite’, declared with attribute warn_unused_result
CC tests/bios-tables-test.o
CC tests/boot-sector.o
CC tests/acpi-utils.o
CC tests/boot-serial-test.o
CC tests/pxe-test.o
CC tests/rtc-test.o
CC tests/ipmi-kcs-test.o
CC tests/ipmi-bt-test.o
CC tests/i440fx-test.o
CC tests/fw_cfg-test.o
CC tests/drive_del-test.o
CC tests/wdt_ib700-test.o
CC tests/tco-test.o
CC tests/e1000e-test.o
CC tests/e1000-test.o
CC tests/rtl8139-test.o
CC tests/pcnet-test.o
CC tests/ne2000-test.o
CC tests/nvme-test.o
CC tests/eepro100-test.o
CC tests/ac97-test.o
CC tests/es1370-test.o
CC tests/virtio-net-test.o
CC tests/virtio-balloon-test.o
CC tests/virtio-blk-test.o
CC tests/virtio-rng-test.o
CC tests/virtio-scsi-test.o
CC tests/virtio-serial-test.o
CC tests/virtio-console-test.o
CC tests/tpci200-test.o
CC tests/ipoctal232-test.o
CC tests/display-vga-test.o
CC tests/ivshmem-test.o
CC tests/intel-hda-test.o
CC tests/vmxnet3-test.o
CC tests/pvpanic-test.o
In file included from /tmp/qemu-test/src/tests/rtc-test.c:18:
/tmp/qemu-test/src/include/hw/timer/mc146818rtc.h: In function ‘periodic_clock_to_ns’:
/tmp/qemu-test/src/include/hw/timer/mc146818rtc.h:30: error: ‘NANOSECONDS_PER_SECOND’ undeclared (first use in this function)
/tmp/qemu-test/src/include/hw/timer/mc146818rtc.h:30: error: (Each undeclared identifier is reported only once
/tmp/qemu-test/src/include/hw/timer/mc146818rtc.h:30: error: for each function it appears in.)
/tmp/qemu-test/src/tests/rtc-test.c: In function ‘periodic_timer’:
/tmp/qemu-test/src/tests/rtc-test.c:588: error: ‘NANOSECONDS_PER_SECOND’ undeclared (first use in this function)
make: *** [tests/rtc-test.o] Error 1
make: *** Waiting for unfinished jobs....
tests/docker/Makefile.include:118: recipe for target 'docker-run' failed
make[1]: *** [docker-run] Error 2
make[1]: Leaving directory '/var/tmp/patchew-tester-tmp-aqow9c0d/src'
tests/docker/Makefile.include:149: recipe for target 'docker-run-test-quick@centos6' failed
make: *** [docker-run-test-quick@centos6] Error 2
=== OUTPUT END ===
Test command exited with code: 2
---
Email generated automatically by Patchew [http://patchew.org/].
Please send your feedback to patchew-devel@freelists.org
^ permalink raw reply [flat|nested] 44+ messages in thread
* Re: [Qemu-devel] [PULL 00/33] Misc patches for 2017-06-01
2017-06-01 12:41 [Qemu-devel] [PULL 00/33] Misc patches for 2017-06-01 Paolo Bonzini
` (33 preceding siblings ...)
2017-06-01 14:26 ` [Qemu-devel] [PULL 00/33] Misc patches for 2017-06-01 no-reply
@ 2017-06-01 15:09 ` no-reply
34 siblings, 0 replies; 44+ messages in thread
From: no-reply @ 2017-06-01 15:09 UTC (permalink / raw)
To: pbonzini; +Cc: famz, qemu-devel
Hi,
This series seems to have some coding style problems. See output below for
more information:
Type: series
Message-id: 1496320911-51305-1-git-send-email-pbonzini@redhat.com
Subject: [Qemu-devel] [PULL 00/33] Misc patches for 2017-06-01
=== TEST SCRIPT BEGIN ===
#!/bin/bash
BASE=base
n=1
total=$(git log --oneline $BASE.. | wc -l)
failed=0
git config --local diff.renamelimit 0
git config --local diff.renames True
commits="$(git log --format=%H --reverse $BASE..)"
for c in $commits; do
echo "Checking PATCH $n/$total: $(git log -n 1 --format=%s $c)..."
if ! git show $c --format=email | ./scripts/checkpatch.pl --mailback -; then
failed=1
echo
fi
n=$((n+1))
done
exit $failed
=== TEST SCRIPT END ===
Updating 3c8cf5a9c21ff8782164d1def7f44bd888713384
From https://github.com/patchew-project/qemu
* [new tag] patchew/20170601144915.20778-1-alex.bennee@linaro.org -> patchew/20170601144915.20778-1-alex.bennee@linaro.org
Switched to a new branch 'test'
1ebbf04 kvm: don't register smram_listener when smm is off
f4b3f7c nbd: make it thread-safe, fix qcow2 over nbd
d4a18e8 hw/core: nmi.c can be compiled as common-obj nowadays
c06c4af target/i386: Add GDB XML description for SSE registers
4344a48 i386/kvm: do not zero out segment flags if segment is unusable or not present
e86883d edu: fix memory leak on msi_broken platforms
be6d7fd linuxboot_dma: compile for i486
14947d1 kvmclock: update system_time_msr address forcibly
5001e27 qtest: add rtc periodic timer test
97bb2fa nbd: Fully initialize client in case of failed negotiation
5d9ae3d exec: fix address_space_get_iotlb_entry page mask
f778d29 sockets: improve error reporting if UNIX socket path is too long
d7a4856 i386: fix read/write cr with icount option
188dc83 target/i386: use multiple CPU AddressSpaces
8efdf10 target/i386: enable A20 automatically in system management mode
cc48f9a vhost-user-scsi: Introduce a vhost-user-scsi sample application
f2e2614 vhost-user-scsi: Introduce vhost-user-scsi host device
8b2ecdf virtio-scsi: Unset hotplug handler when unrealize
7d172d8 exec: simplify phys_page_find() params
cc24c0d nbd/client.c: use errp instead of LOG
8581947 nbd: add errp to read_sync, write_sync and drop_sync
049fa7e nbd: add errp parameter to nbd_wr_syncv()
6715ff30 nbd: read_sync and friends: return 0 on success
7ebb76e nbd: strict nbd_wr_syncv
3e8b635 Check the return value of fcntl in qemu_set_cloexec
cb9ada7 kvm: irqchip: skip update msi when disabled
302dc31 msix: trace control bit write op
fb29a24 kvm: irqchip: trace changes on msi add/remove
e6cd374 mc146818rtc: embrace all x86 specific code
88f77c2 mc146818rtc: drop unnecessary '#ifdef TARGET_I386'
546abbc mc146818rtc: ensure LOST_TICK_POLICY_SLEW is only enabled on TARGET_I386
1b2152e mc146818rtc: precisely count the clock for periodic timer
472d959 mc146818rtc: update periodic timer only if it is needed
=== OUTPUT BEGIN ===
Checking PATCH 1/33: mc146818rtc: update periodic timer only if it is needed...
Checking PATCH 2/33: mc146818rtc: precisely count the clock for periodic timer...
ERROR: braces {} are necessary for all arms of this statement
#129: FILE: hw/timer/mc146818rtc.c:216:
+ if (s->lost_tick_policy == LOST_TICK_POLICY_SLEW) {
[...]
+ } else
[...]
total: 1 errors, 0 warnings, 181 lines checked
Your patch has style problems, please review. If any of these errors
are false positives report them to the maintainer, see
CHECKPATCH in MAINTAINERS.
Checking PATCH 3/33: mc146818rtc: ensure LOST_TICK_POLICY_SLEW is only enabled on TARGET_I386...
Checking PATCH 4/33: mc146818rtc: drop unnecessary '#ifdef TARGET_I386'...
Checking PATCH 5/33: mc146818rtc: embrace all x86 specific code...
Checking PATCH 6/33: kvm: irqchip: trace changes on msi add/remove...
Checking PATCH 7/33: msix: trace control bit write op...
Checking PATCH 8/33: kvm: irqchip: skip update msi when disabled...
Checking PATCH 9/33: Check the return value of fcntl in qemu_set_cloexec...
Checking PATCH 10/33: nbd: strict nbd_wr_syncv...
Checking PATCH 11/33: nbd: read_sync and friends: return 0 on success...
Checking PATCH 12/33: nbd: add errp parameter to nbd_wr_syncv()...
Checking PATCH 13/33: nbd: add errp to read_sync, write_sync and drop_sync...
Checking PATCH 14/33: nbd/client.c: use errp instead of LOG...
ERROR: code indent should never use tabs
#126: FILE: nbd/client.c:729:
+^I Error **errp)$
total: 1 errors, 0 warnings, 158 lines checked
Your patch has style problems, please review. If any of these errors
are false positives report them to the maintainer, see
CHECKPATCH in MAINTAINERS.
Checking PATCH 15/33: exec: simplify phys_page_find() params...
Checking PATCH 16/33: virtio-scsi: Unset hotplug handler when unrealize...
Checking PATCH 17/33: vhost-user-scsi: Introduce vhost-user-scsi host device...
Checking PATCH 18/33: vhost-user-scsi: Introduce a vhost-user-scsi sample application...
Checking PATCH 19/33: target/i386: enable A20 automatically in system management mode...
Checking PATCH 20/33: target/i386: use multiple CPU AddressSpaces...
Checking PATCH 21/33: i386: fix read/write cr with icount option...
Checking PATCH 22/33: sockets: improve error reporting if UNIX socket path is too long...
Checking PATCH 23/33: exec: fix address_space_get_iotlb_entry page mask...
Checking PATCH 24/33: nbd: Fully initialize client in case of failed negotiation...
Checking PATCH 25/33: qtest: add rtc periodic timer test...
Checking PATCH 26/33: kvmclock: update system_time_msr address forcibly...
Checking PATCH 27/33: linuxboot_dma: compile for i486...
Checking PATCH 28/33: edu: fix memory leak on msi_broken platforms...
Checking PATCH 29/33: i386/kvm: do not zero out segment flags if segment is unusable or not present...
Checking PATCH 30/33: target/i386: Add GDB XML description for SSE registers...
Checking PATCH 31/33: hw/core: nmi.c can be compiled as common-obj nowadays...
Checking PATCH 32/33: nbd: make it thread-safe, fix qcow2 over nbd...
Checking PATCH 33/33: kvm: don't register smram_listener when smm is off...
=== OUTPUT END ===
Test command exited with code: 1
---
Email generated automatically by Patchew [http://patchew.org/].
Please send your feedback to patchew-devel@freelists.org
^ permalink raw reply [flat|nested] 44+ messages in thread
* Re: [Qemu-devel] [PULL 24/33] nbd: Fully initialize client in case of failed negotiation
2017-06-01 12:41 ` [Qemu-devel] [PULL 24/33] nbd: Fully initialize client in case of failed negotiation Paolo Bonzini
@ 2017-06-01 15:15 ` Eric Blake
0 siblings, 0 replies; 44+ messages in thread
From: Eric Blake @ 2017-06-01 15:15 UTC (permalink / raw)
To: Paolo Bonzini, qemu-devel
[-- Attachment #1: Type: text/plain, Size: 638 bytes --]
On 06/01/2017 07:41 AM, Paolo Bonzini wrote:
> From: Eric Blake <eblake@redhat.com>
>
> If a non-NBD client connects to qemu-nbd, we would end up with
> a SIGSEGV in nbd_cilent_put() because we were trying to
Since it looks like you have to respin this pull request for other
reasons, you could s/cilent/client/ while touching things up.
> unregister the client's association to the export, even though
> we skipped inserting the client into that list. Easy trigger
> in two terminals:
>
--
Eric Blake, Principal Software Engineer
Red Hat, Inc. +1-919-301-3266
Virtualization: qemu.org | libvirt.org
[-- Attachment #2: OpenPGP digital signature --]
[-- Type: application/pgp-signature, Size: 604 bytes --]
^ permalink raw reply [flat|nested] 44+ messages in thread
* Re: [Qemu-devel] [PULL 23/33] exec: fix address_space_get_iotlb_entry page mask
2017-06-01 12:41 ` [Qemu-devel] [PULL 23/33] exec: fix address_space_get_iotlb_entry page mask Paolo Bonzini
@ 2017-06-02 9:59 ` Peter Xu
0 siblings, 0 replies; 44+ messages in thread
From: Peter Xu @ 2017-06-02 9:59 UTC (permalink / raw)
To: Paolo Bonzini; +Cc: qemu-devel
On Thu, Jun 01, 2017 at 02:41:41PM +0200, Paolo Bonzini wrote:
> From: Peter Xu <peterx@redhat.com>
>
> The IOTLB that it returned didn't guarantee that page_mask is indeed a
> so-called page mask. That won't affect current usage since now only
> vhost is using it (vhost API allows arbitary IOTLB range). However we
> have IOTLB scemantic and we should best follow it. This patch fixes this
> issue to make sure the page_mask is always a valid page mask.
>
> Fixes: a764040 ("exec: abstract address_space_do_translate()")
> Signed-off-by: Peter Xu <peterx@redhat.com>
> Message-Id: <1496212378-22605-1-git-send-email-peterx@redhat.com>
> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
> ---
> exec.c | 14 ++++++--------
> 1 file changed, 6 insertions(+), 8 deletions(-)
>
> diff --git a/exec.c b/exec.c
> index 29633cd..22b8f0c 100644
> --- a/exec.c
> +++ b/exec.c
> @@ -528,16 +528,14 @@ IOMMUTLBEntry address_space_get_iotlb_entry(AddressSpace *as, hwaddr addr,
> section.offset_within_region;
>
> if (plen == (hwaddr)-1) {
> - /*
> - * We use default page size here. Logically it only happens
> - * for identity mappings.
> - */
> - plen = TARGET_PAGE_SIZE;
> + /* If not specified during translation, use default mask */
> + plen = TARGET_PAGE_MASK;
> + } else {
> + /* Make it a valid page mask */
> + assert(plen);
> + plen = pow2floor(plen) - 1;
> }
>
> - /* Convert to address mask */
> - plen -= 1;
> -
> return (IOMMUTLBEntry) {
> .target_as = section.address_space,
> .iova = addr & ~plen,
> --
> 1.8.3.1
Paolo,
I got a better idea on refactoring address_space_get_iotlb_entry(). If
you haven't started preparing another pull request, please feel free
to drop this one (it fixed the problem but not that complete).
Otherwise I'll just work upon it, which is fine as well.
Sorry for the troublesome.
--
Peter Xu
^ permalink raw reply [flat|nested] 44+ messages in thread
* Re: [Qemu-devel] [PULL 17/33] vhost-user-scsi: Introduce vhost-user-scsi host device
2017-06-01 12:41 ` [Qemu-devel] [PULL 17/33] vhost-user-scsi: Introduce vhost-user-scsi host device Paolo Bonzini
@ 2017-06-05 16:28 ` Eric Blake
2017-06-05 16:38 ` Felipe Franciosi
0 siblings, 1 reply; 44+ messages in thread
From: Eric Blake @ 2017-06-05 16:28 UTC (permalink / raw)
To: Paolo Bonzini, qemu-devel; +Cc: Felipe Franciosi
[-- Attachment #1: Type: text/plain, Size: 1299 bytes --]
On 06/01/2017 07:41 AM, Paolo Bonzini wrote:
> From: Felipe Franciosi <felipe@nutanix.com>
>
> This commit introduces a vhost-user device for SCSI. This is based
> on the existing vhost-scsi implementation, but done over vhost-user
> instead. It also uses a chardev to connect to the backend. Unlike
> vhost-scsi (today), VMs using vhost-user-scsi can be live migrated.
>
> To use it, start Qemu with a command line equivalent to:
>
> qemu-system-x86_64 \
> -chardev socket,id=vus0,path=/tmp/vus.sock \
> -device vhost-user-scsi-pci,chardev=vus0,bus=pci.0,addr=...
>
> A separate commit presents a sample application linked with libiscsi to
> provide a backend for vhost-user-scsi.
>
> Signed-off-by: Felipe Franciosi <felipe@nutanix.com>
> Message-Id: <1488479153-21203-4-git-send-email-felipe@nutanix.com>
> ---
This pull request still hasn't landed, and now it needs a rebase:
> +++ b/hw/scsi/vhost-user-scsi.c
> +#include "hw/virtio/virtio-access.h"
> +#include "sysemu/char.h"
Now that commit 6b10e573 is on mainline, sysemu/char.h has been renamed
to chardev/char.h (there may be other changes needed, too).
--
Eric Blake, Principal Software Engineer
Red Hat, Inc. +1-919-301-3266
Virtualization: qemu.org | libvirt.org
[-- Attachment #2: OpenPGP digital signature --]
[-- Type: application/pgp-signature, Size: 604 bytes --]
^ permalink raw reply [flat|nested] 44+ messages in thread
* Re: [Qemu-devel] [PULL 17/33] vhost-user-scsi: Introduce vhost-user-scsi host device
2017-06-05 16:28 ` Eric Blake
@ 2017-06-05 16:38 ` Felipe Franciosi
2017-06-05 16:41 ` Eric Blake
0 siblings, 1 reply; 44+ messages in thread
From: Felipe Franciosi @ 2017-06-05 16:38 UTC (permalink / raw)
To: Eric Blake; +Cc: Paolo Bonzini, qemu-devel
> On 5 Jun 2017, at 17:28, Eric Blake <eblake@redhat.com> wrote:
>
> On 06/01/2017 07:41 AM, Paolo Bonzini wrote:
>> From: Felipe Franciosi <felipe@nutanix.com>
>>
>> This commit introduces a vhost-user device for SCSI. This is based
>> on the existing vhost-scsi implementation, but done over vhost-user
>> instead. It also uses a chardev to connect to the backend. Unlike
>> vhost-scsi (today), VMs using vhost-user-scsi can be live migrated.
>>
>> To use it, start Qemu with a command line equivalent to:
>>
>> qemu-system-x86_64 \
>> -chardev socket,id=vus0,path=/tmp/vus.sock \
>> -device vhost-user-scsi-pci,chardev=vus0,bus=pci.0,addr=...
>>
>> A separate commit presents a sample application linked with libiscsi to
>> provide a backend for vhost-user-scsi.
>>
>> Signed-off-by: Felipe Franciosi <felipe@nutanix.com>
>> Message-Id: <1488479153-21203-4-git-send-email-felipe@nutanix.com>
>> ---
>
> This pull request still hasn't landed, and now it needs a rebase:
Hi Eric,
Thanks for the report. Looks simple. Part of the series have been merged. Should I rebase+resend just the two missing patches (as a new series?) or should Paolo do this? I'm not sure what's the workflow here.
Cheers,
Felipe
>
>> +++ b/hw/scsi/vhost-user-scsi.c
>
>> +#include "hw/virtio/virtio-access.h"
>> +#include "sysemu/char.h"
>
> Now that commit 6b10e573 is on mainline, sysemu/char.h has been renamed
> to chardev/char.h (there may be other changes needed, too).
>
> --
> Eric Blake, Principal Software Engineer
> Red Hat, Inc. +1-919-301-3266
> Virtualization: qemu.org | libvirt.org
^ permalink raw reply [flat|nested] 44+ messages in thread
* Re: [Qemu-devel] [PULL 17/33] vhost-user-scsi: Introduce vhost-user-scsi host device
2017-06-05 16:38 ` Felipe Franciosi
@ 2017-06-05 16:41 ` Eric Blake
2017-06-05 16:50 ` Paolo Bonzini
0 siblings, 1 reply; 44+ messages in thread
From: Eric Blake @ 2017-06-05 16:41 UTC (permalink / raw)
To: Felipe Franciosi; +Cc: Paolo Bonzini, qemu-devel
[-- Attachment #1: Type: text/plain, Size: 829 bytes --]
On 06/05/2017 11:38 AM, Felipe Franciosi wrote:
>>> Signed-off-by: Felipe Franciosi <felipe@nutanix.com>
>>> Message-Id: <1488479153-21203-4-git-send-email-felipe@nutanix.com>
>>> ---
>>
>> This pull request still hasn't landed, and now it needs a rebase:
>
> Hi Eric,
>
> Thanks for the report. Looks simple. Part of the series have been merged. Should I rebase+resend just the two missing patches (as a new series?) or should Paolo do this? I'm not sure what's the workflow here.
Paolo has to re-spin his PULL request, but I'm sure it would help him to
have updated patches from you that work out of the box, instead of
making him figure out the changes that have to be made.
--
Eric Blake, Principal Software Engineer
Red Hat, Inc. +1-919-301-3266
Virtualization: qemu.org | libvirt.org
[-- Attachment #2: OpenPGP digital signature --]
[-- Type: application/pgp-signature, Size: 604 bytes --]
^ permalink raw reply [flat|nested] 44+ messages in thread
* Re: [Qemu-devel] [PULL 17/33] vhost-user-scsi: Introduce vhost-user-scsi host device
2017-06-05 16:41 ` Eric Blake
@ 2017-06-05 16:50 ` Paolo Bonzini
0 siblings, 0 replies; 44+ messages in thread
From: Paolo Bonzini @ 2017-06-05 16:50 UTC (permalink / raw)
To: Eric Blake; +Cc: Felipe Franciosi, qemu-devel
----- Original Message -----
> From: "Eric Blake" <eblake@redhat.com>
> To: "Felipe Franciosi" <felipe@nutanix.com>
> Cc: "Paolo Bonzini" <pbonzini@redhat.com>, "qemu-devel" <qemu-devel@nongnu.org>
> Sent: Monday, June 5, 2017 6:41:33 PM
> Subject: Re: [Qemu-devel] [PULL 17/33] vhost-user-scsi: Introduce vhost-user-scsi host device
>
> On 06/05/2017 11:38 AM, Felipe Franciosi wrote:
>
> >>> Signed-off-by: Felipe Franciosi <felipe@nutanix.com>
> >>> Message-Id: <1488479153-21203-4-git-send-email-felipe@nutanix.com>
> >>> ---
> >>
> >> This pull request still hasn't landed, and now it needs a rebase:
> >
> > Hi Eric,
> >
> > Thanks for the report. Looks simple. Part of the series have been merged.
> > Should I rebase+resend just the two missing patches (as a new series?) or
> > should Paolo do this? I'm not sure what's the workflow here.
>
> Paolo has to re-spin his PULL request, but I'm sure it would help him to
> have updated patches from you that work out of the box, instead of
> making him figure out the changes that have to be made.
I have to retest everything anyway. But it'll have to wait for tomorrow
or later, because I have other stuff to do.
Paolo
^ permalink raw reply [flat|nested] 44+ messages in thread
* Re: [Qemu-devel] [PULL 22/33] sockets: improve error reporting if UNIX socket path is too long
2017-06-01 12:41 ` [Qemu-devel] [PULL 22/33] sockets: improve error reporting if UNIX socket path is too long Paolo Bonzini
@ 2017-06-13 16:10 ` Peter Maydell
2017-06-14 8:05 ` Daniel P. Berrange
0 siblings, 1 reply; 44+ messages in thread
From: Peter Maydell @ 2017-06-13 16:10 UTC (permalink / raw)
To: Paolo Bonzini; +Cc: QEMU Developers, Daniel P. Berrange
On 1 June 2017 at 13:41, Paolo Bonzini <pbonzini@redhat.com> wrote:
> From: "Daniel P. Berrange" <berrange@redhat.com>
>
> The 'struct sockaddr_un' only allows 108 bytes for the socket
> path.
>
> If the user supplies a path, QEMU uses snprintf() to silently
> truncate it when too long. This is undesirable because the user
> will then be unable to connect to the path they asked for.
>
> If the user doesn't supply a path, QEMU builds one based on
> TMPDIR, but if that leads to an overlong path, it mistakenly
> uses error_setg_errno() with a stale errno value, because
> snprintf() does not set errno on truncation.
>
> In solving this the code needed some refactoring to ensure we
> don't pass 'un.sun_path' directly to any APIs which expect
> NUL-terminated strings, because the path is not required to
> be terminated.
>
> Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
> Message-Id: <20170525155300.22743-1-berrange@redhat.com>
> Reviewed-by: Eric Blake <eblake@redhat.com>
> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
> ---
> util/qemu-sockets.c | 68 ++++++++++++++++++++++++++++++++++++-----------------
> 1 file changed, 46 insertions(+), 22 deletions(-)
It looks like we missed a case where we should have changed
an un.sun_path usage to something else:
> @@ -873,24 +877,25 @@ static int unix_listen_saddr(UnixSocketAddress *saddr,
> * to unlink first and thus re-open the race window. The
> * worst case possible is bind() failing, i.e. a DoS attack.
> */
> - fd = mkstemp(un.sun_path);
> + fd = mkstemp(pathbuf);
> if (fd < 0) {
> error_setg_errno(errp, errno,
> - "Failed to make a temporary socket name in %s", tmpdir);
> + "Failed to make a temporary socket %s", pathbuf);
> goto err;
> }
> close(fd);
> - if (update_addr) {
> - g_free(saddr->path);
> - saddr->path = g_strdup(un.sun_path);
> - }
> }
>
> - if (unlink(un.sun_path) < 0 && errno != ENOENT) {
> + if (unlink(path) < 0 && errno != ENOENT) {
> error_setg_errno(errp, errno,
> - "Failed to unlink socket %s", un.sun_path);
> + "Failed to unlink socket %s", path);
> goto err;
> }
> +
> + memset(&un, 0, sizeof(un));
> + un.sun_family = AF_UNIX;
> + strncpy(un.sun_path, path, sizeof(un.sun_path));
> +
> if (bind(sock, (struct sockaddr*) &un, sizeof(un)) < 0) {
> error_setg_errno(errp, errno, "Failed to bind socket to %s", un.sun_path);
...you can see it in this bit of the context: this should be passing
"path" to the %s format string, shouldn't it?
Spotted looking at coverity issues, though unfortunately coverity
just always reports the "buffer not nul terminated" error rather
than only the cases where we don't nul terminate and then hand
the buffer to a function which consumes a nul-terminated string,
so we just have to mark the issue 'ignore' and don't get the
benefit of static checking :-(
thanks
-- PMM
^ permalink raw reply [flat|nested] 44+ messages in thread
* Re: [Qemu-devel] [PULL 22/33] sockets: improve error reporting if UNIX socket path is too long
2017-06-13 16:10 ` Peter Maydell
@ 2017-06-14 8:05 ` Daniel P. Berrange
0 siblings, 0 replies; 44+ messages in thread
From: Daniel P. Berrange @ 2017-06-14 8:05 UTC (permalink / raw)
To: Peter Maydell; +Cc: Paolo Bonzini, QEMU Developers
On Tue, Jun 13, 2017 at 05:10:00PM +0100, Peter Maydell wrote:
> On 1 June 2017 at 13:41, Paolo Bonzini <pbonzini@redhat.com> wrote:
> > From: "Daniel P. Berrange" <berrange@redhat.com>
> >
> > The 'struct sockaddr_un' only allows 108 bytes for the socket
> > path.
> >
> > If the user supplies a path, QEMU uses snprintf() to silently
> > truncate it when too long. This is undesirable because the user
> > will then be unable to connect to the path they asked for.
> >
> > If the user doesn't supply a path, QEMU builds one based on
> > TMPDIR, but if that leads to an overlong path, it mistakenly
> > uses error_setg_errno() with a stale errno value, because
> > snprintf() does not set errno on truncation.
> >
> > In solving this the code needed some refactoring to ensure we
> > don't pass 'un.sun_path' directly to any APIs which expect
> > NUL-terminated strings, because the path is not required to
> > be terminated.
> >
> > Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
> > Message-Id: <20170525155300.22743-1-berrange@redhat.com>
> > Reviewed-by: Eric Blake <eblake@redhat.com>
> > Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
> > ---
> > util/qemu-sockets.c | 68 ++++++++++++++++++++++++++++++++++++-----------------
> > 1 file changed, 46 insertions(+), 22 deletions(-)
>
> It looks like we missed a case where we should have changed
> an un.sun_path usage to something else:
>
> > @@ -873,24 +877,25 @@ static int unix_listen_saddr(UnixSocketAddress *saddr,
> > * to unlink first and thus re-open the race window. The
> > * worst case possible is bind() failing, i.e. a DoS attack.
> > */
> > - fd = mkstemp(un.sun_path);
> > + fd = mkstemp(pathbuf);
> > if (fd < 0) {
> > error_setg_errno(errp, errno,
> > - "Failed to make a temporary socket name in %s", tmpdir);
> > + "Failed to make a temporary socket %s", pathbuf);
> > goto err;
> > }
> > close(fd);
> > - if (update_addr) {
> > - g_free(saddr->path);
> > - saddr->path = g_strdup(un.sun_path);
> > - }
> > }
> >
> > - if (unlink(un.sun_path) < 0 && errno != ENOENT) {
> > + if (unlink(path) < 0 && errno != ENOENT) {
> > error_setg_errno(errp, errno,
> > - "Failed to unlink socket %s", un.sun_path);
> > + "Failed to unlink socket %s", path);
> > goto err;
> > }
> > +
> > + memset(&un, 0, sizeof(un));
> > + un.sun_family = AF_UNIX;
> > + strncpy(un.sun_path, path, sizeof(un.sun_path));
> > +
> > if (bind(sock, (struct sockaddr*) &un, sizeof(un)) < 0) {
> > error_setg_errno(errp, errno, "Failed to bind socket to %s", un.sun_path);
>
> ...you can see it in this bit of the context: this should be passing
> "path" to the %s format string, shouldn't it?
Yes, you are correct - we must use "path"
>
> Spotted looking at coverity issues, though unfortunately coverity
> just always reports the "buffer not nul terminated" error rather
> than only the cases where we don't nul terminate and then hand
> the buffer to a function which consumes a nul-terminated string,
> so we just have to mark the issue 'ignore' and don't get the
> benefit of static checking :-(
Regards,
Daniel
--
|: https://berrange.com -o- https://www.flickr.com/photos/dberrange :|
|: https://libvirt.org -o- https://fstop138.berrange.com :|
|: https://entangle-photo.org -o- https://www.instagram.com/dberrange :|
^ permalink raw reply [flat|nested] 44+ messages in thread
end of thread, other threads:[~2017-06-14 8:05 UTC | newest]
Thread overview: 44+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2017-06-01 12:41 [Qemu-devel] [PULL 00/33] Misc patches for 2017-06-01 Paolo Bonzini
2017-06-01 12:41 ` [Qemu-devel] [PULL 01/33] mc146818rtc: update periodic timer only if it is needed Paolo Bonzini
2017-06-01 12:41 ` [Qemu-devel] [PULL 02/33] mc146818rtc: precisely count the clock for periodic timer Paolo Bonzini
2017-06-01 12:41 ` [Qemu-devel] [PULL 03/33] mc146818rtc: ensure LOST_TICK_POLICY_SLEW is only enabled on TARGET_I386 Paolo Bonzini
2017-06-01 12:41 ` [Qemu-devel] [PULL 04/33] mc146818rtc: drop unnecessary '#ifdef TARGET_I386' Paolo Bonzini
2017-06-01 12:41 ` [Qemu-devel] [PULL 05/33] mc146818rtc: embrace all x86 specific code Paolo Bonzini
2017-06-01 12:41 ` [Qemu-devel] [PULL 06/33] kvm: irqchip: trace changes on msi add/remove Paolo Bonzini
2017-06-01 12:41 ` [Qemu-devel] [PULL 07/33] msix: trace control bit write op Paolo Bonzini
2017-06-01 12:41 ` [Qemu-devel] [PULL 08/33] kvm: irqchip: skip update msi when disabled Paolo Bonzini
2017-06-01 12:41 ` [Qemu-devel] [PULL 09/33] Check the return value of fcntl in qemu_set_cloexec Paolo Bonzini
2017-06-01 12:41 ` [Qemu-devel] [PULL 10/33] nbd: strict nbd_wr_syncv Paolo Bonzini
2017-06-01 12:41 ` [Qemu-devel] [PULL 11/33] nbd: read_sync and friends: return 0 on success Paolo Bonzini
2017-06-01 12:41 ` [Qemu-devel] [PULL 12/33] nbd: add errp parameter to nbd_wr_syncv() Paolo Bonzini
2017-06-01 12:41 ` [Qemu-devel] [PULL 13/33] nbd: add errp to read_sync, write_sync and drop_sync Paolo Bonzini
2017-06-01 12:41 ` [Qemu-devel] [PULL 14/33] nbd/client.c: use errp instead of LOG Paolo Bonzini
2017-06-01 12:41 ` [Qemu-devel] [PULL 15/33] exec: simplify phys_page_find() params Paolo Bonzini
2017-06-01 12:41 ` [Qemu-devel] [PULL 16/33] virtio-scsi: Unset hotplug handler when unrealize Paolo Bonzini
2017-06-01 12:41 ` [Qemu-devel] [PULL 17/33] vhost-user-scsi: Introduce vhost-user-scsi host device Paolo Bonzini
2017-06-05 16:28 ` Eric Blake
2017-06-05 16:38 ` Felipe Franciosi
2017-06-05 16:41 ` Eric Blake
2017-06-05 16:50 ` Paolo Bonzini
2017-06-01 12:41 ` [Qemu-devel] [PULL 18/33] vhost-user-scsi: Introduce a vhost-user-scsi sample application Paolo Bonzini
2017-06-01 12:41 ` [Qemu-devel] [PULL 19/33] target/i386: enable A20 automatically in system management mode Paolo Bonzini
2017-06-01 12:41 ` [Qemu-devel] [PULL 20/33] target/i386: use multiple CPU AddressSpaces Paolo Bonzini
2017-06-01 12:41 ` [Qemu-devel] [PULL 21/33] i386: fix read/write cr with icount option Paolo Bonzini
2017-06-01 12:41 ` [Qemu-devel] [PULL 22/33] sockets: improve error reporting if UNIX socket path is too long Paolo Bonzini
2017-06-13 16:10 ` Peter Maydell
2017-06-14 8:05 ` Daniel P. Berrange
2017-06-01 12:41 ` [Qemu-devel] [PULL 23/33] exec: fix address_space_get_iotlb_entry page mask Paolo Bonzini
2017-06-02 9:59 ` Peter Xu
2017-06-01 12:41 ` [Qemu-devel] [PULL 24/33] nbd: Fully initialize client in case of failed negotiation Paolo Bonzini
2017-06-01 15:15 ` Eric Blake
2017-06-01 12:41 ` [Qemu-devel] [PULL 25/33] qtest: add rtc periodic timer test Paolo Bonzini
2017-06-01 12:41 ` [Qemu-devel] [PULL 26/33] kvmclock: update system_time_msr address forcibly Paolo Bonzini
2017-06-01 12:41 ` [Qemu-devel] [PULL 27/33] linuxboot_dma: compile for i486 Paolo Bonzini
2017-06-01 12:41 ` [Qemu-devel] [PULL 28/33] edu: fix memory leak on msi_broken platforms Paolo Bonzini
2017-06-01 12:41 ` [Qemu-devel] [PULL 29/33] i386/kvm: do not zero out segment flags if segment is unusable or not present Paolo Bonzini
2017-06-01 12:41 ` [Qemu-devel] [PULL 30/33] target/i386: Add GDB XML description for SSE registers Paolo Bonzini
2017-06-01 12:41 ` [Qemu-devel] [PULL 31/33] hw/core: nmi.c can be compiled as common-obj nowadays Paolo Bonzini
2017-06-01 12:41 ` [Qemu-devel] [PULL 32/33] nbd: make it thread-safe, fix qcow2 over nbd Paolo Bonzini
2017-06-01 12:41 ` [Qemu-devel] [PULL 33/33] kvm: don't register smram_listener when smm is off Paolo Bonzini
2017-06-01 14:26 ` [Qemu-devel] [PULL 00/33] Misc patches for 2017-06-01 no-reply
2017-06-01 15:09 ` no-reply
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.