* [Qemu-devel] [QEMU] [PATCH v5 0/8] Add Qemu to SeaBIOS LCHS interface
@ 2019-06-26 12:39 Sam Eiderman
2019-06-26 12:39 ` [Qemu-devel] [QEMU] [PATCH v5 1/8] block: Refactor macros - fix tabbing Sam Eiderman
` (9 more replies)
0 siblings, 10 replies; 25+ messages in thread
From: Sam Eiderman @ 2019-06-26 12:39 UTC (permalink / raw)
To: kwolf, qemu-block, qemu-devel, mreitz, seabios, kraxel, kevin
Cc: liran.alon, shmuel.eiderman, karl.heubaum, arbel.moshe
v1:
Non-standard logical geometries break under QEMU.
A virtual disk which contains an operating system which depends on
logical geometries (consistent values being reported from BIOS INT13
AH=08) will most likely break under QEMU/SeaBIOS if it has non-standard
logical geometries - for example 56 SPT (sectors per track).
No matter what QEMU will guess - SeaBIOS, for large enough disks - will
use LBA translation, which will report 63 SPT instead.
In addition we can not enforce SeaBIOS to rely on phyiscal geometries at
all. A virtio-blk-pci virtual disk with 255 phyiscal heads can not
report more than 16 physical heads when moved to an IDE controller, the
ATA spec allows a maximum of 16 heads - this is an artifact of
virtualization.
By supplying the logical geometies directly we are able to support such
"exotic" disks.
We will use fw_cfg to do just that.
v2:
Fix missing parenthesis check in
"hd-geo-test: Add tests for lchs override"
v3:
* Rename fw_cfg key to "bios-geometry".
* Remove "extendible" interface.
* Add cpu_to_le32 fix as Laszlo suggested or big endian hosts
* Fix last qtest commit - automatic docker tester for some reason does not have qemu-img set
v4:
* Change fw_cfg interface from mixed textual/binary to textual only
v5:
* Fix line > 80 chars in tests/hd-geo-test.c
Sam Eiderman (8):
block: Refactor macros - fix tabbing
block: Support providing LCHS from user
bootdevice: Add interface to gather LCHS
scsi: Propagate unrealize() callback to scsi-hd
bootdevice: Gather LCHS from all relevant devices
bootdevice: Refactor get_boot_devices_list
bootdevice: FW_CFG interface for LCHS values
hd-geo-test: Add tests for lchs override
bootdevice.c | 148 +++++++++---
hw/block/virtio-blk.c | 6 +
hw/ide/qdev.c | 7 +-
hw/nvram/fw_cfg.c | 14 +-
hw/scsi/scsi-bus.c | 15 ++
hw/scsi/scsi-disk.c | 14 ++
include/hw/block/block.h | 22 +-
include/hw/scsi/scsi.h | 1 +
include/sysemu/sysemu.h | 4 +
tests/Makefile.include | 2 +-
tests/hd-geo-test.c | 582 +++++++++++++++++++++++++++++++++++++++++++++++
11 files changed, 774 insertions(+), 41 deletions(-)
--
2.13.3
^ permalink raw reply [flat|nested] 25+ messages in thread
* [Qemu-devel] [QEMU] [PATCH v5 1/8] block: Refactor macros - fix tabbing
2019-06-26 12:39 [Qemu-devel] [QEMU] [PATCH v5 0/8] Add Qemu to SeaBIOS LCHS interface Sam Eiderman
@ 2019-06-26 12:39 ` Sam Eiderman
2019-06-26 12:39 ` [Qemu-devel] [QEMU] [PATCH v5 2/8] block: Support providing LCHS from user Sam Eiderman
` (8 subsequent siblings)
9 siblings, 0 replies; 25+ messages in thread
From: Sam Eiderman @ 2019-06-26 12:39 UTC (permalink / raw)
To: kwolf, qemu-block, qemu-devel, mreitz, seabios, kraxel, kevin
Cc: liran.alon, shmuel.eiderman, karl.heubaum, arbel.moshe
Fixing tabbing in block related macros.
Reviewed-by: Karl Heubaum <karl.heubaum@oracle.com>
Reviewed-by: Arbel Moshe <arbel.moshe@oracle.com>
Signed-off-by: Sam Eiderman <shmuel.eiderman@oracle.com>
---
hw/ide/qdev.c | 2 +-
include/hw/block/block.h | 16 ++++++++--------
2 files changed, 9 insertions(+), 9 deletions(-)
diff --git a/hw/ide/qdev.c b/hw/ide/qdev.c
index 360cd20bd8..9cae3205df 100644
--- a/hw/ide/qdev.c
+++ b/hw/ide/qdev.c
@@ -285,7 +285,7 @@ static void ide_drive_realize(IDEDevice *dev, Error **errp)
DEFINE_BLOCK_PROPERTIES(IDEDrive, dev.conf), \
DEFINE_BLOCK_ERROR_PROPERTIES(IDEDrive, dev.conf), \
DEFINE_PROP_STRING("ver", IDEDrive, dev.version), \
- DEFINE_PROP_UINT64("wwn", IDEDrive, dev.wwn, 0), \
+ DEFINE_PROP_UINT64("wwn", IDEDrive, dev.wwn, 0), \
DEFINE_PROP_STRING("serial", IDEDrive, dev.serial),\
DEFINE_PROP_STRING("model", IDEDrive, dev.model)
diff --git a/include/hw/block/block.h b/include/hw/block/block.h
index 607539057a..fd55a30bca 100644
--- a/include/hw/block/block.h
+++ b/include/hw/block/block.h
@@ -50,21 +50,21 @@ static inline unsigned int get_physical_block_exp(BlockConf *conf)
_conf.logical_block_size), \
DEFINE_PROP_BLOCKSIZE("physical_block_size", _state, \
_conf.physical_block_size), \
- DEFINE_PROP_UINT16("min_io_size", _state, _conf.min_io_size, 0), \
+ DEFINE_PROP_UINT16("min_io_size", _state, _conf.min_io_size, 0), \
DEFINE_PROP_UINT32("opt_io_size", _state, _conf.opt_io_size, 0), \
- DEFINE_PROP_UINT32("discard_granularity", _state, \
- _conf.discard_granularity, -1), \
- DEFINE_PROP_ON_OFF_AUTO("write-cache", _state, _conf.wce, \
- ON_OFF_AUTO_AUTO), \
+ DEFINE_PROP_UINT32("discard_granularity", _state, \
+ _conf.discard_granularity, -1), \
+ DEFINE_PROP_ON_OFF_AUTO("write-cache", _state, _conf.wce, \
+ ON_OFF_AUTO_AUTO), \
DEFINE_PROP_BOOL("share-rw", _state, _conf.share_rw, false)
#define DEFINE_BLOCK_PROPERTIES(_state, _conf) \
DEFINE_PROP_DRIVE("drive", _state, _conf.blk), \
DEFINE_BLOCK_PROPERTIES_BASE(_state, _conf)
-#define DEFINE_BLOCK_CHS_PROPERTIES(_state, _conf) \
- DEFINE_PROP_UINT32("cyls", _state, _conf.cyls, 0), \
- DEFINE_PROP_UINT32("heads", _state, _conf.heads, 0), \
+#define DEFINE_BLOCK_CHS_PROPERTIES(_state, _conf) \
+ DEFINE_PROP_UINT32("cyls", _state, _conf.cyls, 0), \
+ DEFINE_PROP_UINT32("heads", _state, _conf.heads, 0), \
DEFINE_PROP_UINT32("secs", _state, _conf.secs, 0)
#define DEFINE_BLOCK_ERROR_PROPERTIES(_state, _conf) \
--
2.13.3
^ permalink raw reply related [flat|nested] 25+ messages in thread
* [Qemu-devel] [QEMU] [PATCH v5 2/8] block: Support providing LCHS from user
2019-06-26 12:39 [Qemu-devel] [QEMU] [PATCH v5 0/8] Add Qemu to SeaBIOS LCHS interface Sam Eiderman
2019-06-26 12:39 ` [Qemu-devel] [QEMU] [PATCH v5 1/8] block: Refactor macros - fix tabbing Sam Eiderman
@ 2019-06-26 12:39 ` Sam Eiderman
2019-06-26 12:39 ` [Qemu-devel] [QEMU] [PATCH v5 3/8] bootdevice: Add interface to gather LCHS Sam Eiderman
` (7 subsequent siblings)
9 siblings, 0 replies; 25+ messages in thread
From: Sam Eiderman @ 2019-06-26 12:39 UTC (permalink / raw)
To: kwolf, qemu-block, qemu-devel, mreitz, seabios, kraxel, kevin
Cc: liran.alon, shmuel.eiderman, karl.heubaum, arbel.moshe
Add logical geometry variables to BlockConf.
A user can now supply "lcyls", "lheads" & "lsecs" for any HD device
that supports CHS ("cyls", "heads", "secs").
These devices include:
* ide-hd
* scsi-hd
* virtio-blk-pci
In future commits we will use the provided LCHS and pass it to the BIOS
through fw_cfg to be supplied using INT13 routines.
Reviewed-by: Karl Heubaum <karl.heubaum@oracle.com>
Reviewed-by: Arbel Moshe <arbel.moshe@oracle.com>
Signed-off-by: Sam Eiderman <shmuel.eiderman@oracle.com>
---
include/hw/block/block.h | 6 +++++-
1 file changed, 5 insertions(+), 1 deletion(-)
diff --git a/include/hw/block/block.h b/include/hw/block/block.h
index fd55a30bca..d7246f3862 100644
--- a/include/hw/block/block.h
+++ b/include/hw/block/block.h
@@ -26,6 +26,7 @@ typedef struct BlockConf {
uint32_t discard_granularity;
/* geometry, not all devices use this */
uint32_t cyls, heads, secs;
+ uint32_t lcyls, lheads, lsecs;
OnOffAuto wce;
bool share_rw;
BlockdevOnError rerror;
@@ -65,7 +66,10 @@ static inline unsigned int get_physical_block_exp(BlockConf *conf)
#define DEFINE_BLOCK_CHS_PROPERTIES(_state, _conf) \
DEFINE_PROP_UINT32("cyls", _state, _conf.cyls, 0), \
DEFINE_PROP_UINT32("heads", _state, _conf.heads, 0), \
- DEFINE_PROP_UINT32("secs", _state, _conf.secs, 0)
+ DEFINE_PROP_UINT32("secs", _state, _conf.secs, 0), \
+ DEFINE_PROP_UINT32("lcyls", _state, _conf.lcyls, 0), \
+ DEFINE_PROP_UINT32("lheads", _state, _conf.lheads, 0), \
+ DEFINE_PROP_UINT32("lsecs", _state, _conf.lsecs, 0)
#define DEFINE_BLOCK_ERROR_PROPERTIES(_state, _conf) \
DEFINE_PROP_BLOCKDEV_ON_ERROR("rerror", _state, _conf.rerror, \
--
2.13.3
^ permalink raw reply related [flat|nested] 25+ messages in thread
* [Qemu-devel] [QEMU] [PATCH v5 3/8] bootdevice: Add interface to gather LCHS
2019-06-26 12:39 [Qemu-devel] [QEMU] [PATCH v5 0/8] Add Qemu to SeaBIOS LCHS interface Sam Eiderman
2019-06-26 12:39 ` [Qemu-devel] [QEMU] [PATCH v5 1/8] block: Refactor macros - fix tabbing Sam Eiderman
2019-06-26 12:39 ` [Qemu-devel] [QEMU] [PATCH v5 2/8] block: Support providing LCHS from user Sam Eiderman
@ 2019-06-26 12:39 ` Sam Eiderman
2019-08-13 18:51 ` Max Reitz
2019-06-26 12:39 ` [Qemu-devel] [QEMU] [PATCH v5 4/8] scsi: Propagate unrealize() callback to scsi-hd Sam Eiderman
` (6 subsequent siblings)
9 siblings, 1 reply; 25+ messages in thread
From: Sam Eiderman @ 2019-06-26 12:39 UTC (permalink / raw)
To: kwolf, qemu-block, qemu-devel, mreitz, seabios, kraxel, kevin
Cc: liran.alon, shmuel.eiderman, karl.heubaum, arbel.moshe
Add an interface to provide direct logical CHS values for boot devices.
We will use this interface in the next commits.
Reviewed-by: Karl Heubaum <karl.heubaum@oracle.com>
Reviewed-by: Arbel Moshe <arbel.moshe@oracle.com>
Signed-off-by: Sam Eiderman <shmuel.eiderman@oracle.com>
---
bootdevice.c | 55 +++++++++++++++++++++++++++++++++++++++++++++++++
include/sysemu/sysemu.h | 3 +++
2 files changed, 58 insertions(+)
diff --git a/bootdevice.c b/bootdevice.c
index 1d225202f9..bc5e1c2de4 100644
--- a/bootdevice.c
+++ b/bootdevice.c
@@ -343,3 +343,58 @@ void device_add_bootindex_property(Object *obj, int32_t *bootindex,
/* initialize devices' bootindex property to -1 */
object_property_set_int(obj, -1, name, NULL);
}
+
+typedef struct FWLCHSEntry FWLCHSEntry;
+
+struct FWLCHSEntry {
+ QTAILQ_ENTRY(FWLCHSEntry) link;
+ DeviceState *dev;
+ char *suffix;
+ uint32_t lcyls;
+ uint32_t lheads;
+ uint32_t lsecs;
+};
+
+static QTAILQ_HEAD(, FWLCHSEntry) fw_lchs =
+ QTAILQ_HEAD_INITIALIZER(fw_lchs);
+
+void add_boot_device_lchs(DeviceState *dev, const char *suffix,
+ uint32_t lcyls, uint32_t lheads, uint32_t lsecs)
+{
+ FWLCHSEntry *node;
+
+ if (!lcyls && !lheads && !lsecs) {
+ return;
+ }
+
+ assert(dev != NULL || suffix != NULL);
+
+ node = g_malloc0(sizeof(FWLCHSEntry));
+ node->suffix = g_strdup(suffix);
+ node->dev = dev;
+ node->lcyls = lcyls;
+ node->lheads = lheads;
+ node->lsecs = lsecs;
+
+ QTAILQ_INSERT_TAIL(&fw_lchs, node, link);
+}
+
+void del_boot_device_lchs(DeviceState *dev, const char *suffix)
+{
+ FWLCHSEntry *i;
+
+ if (dev == NULL) {
+ return;
+ }
+
+ QTAILQ_FOREACH(i, &fw_lchs, link) {
+ if ((!suffix || !g_strcmp0(i->suffix, suffix)) &&
+ i->dev == dev) {
+ QTAILQ_REMOVE(&fw_lchs, i, link);
+ g_free(i->suffix);
+ g_free(i);
+
+ break;
+ }
+ }
+}
diff --git a/include/sysemu/sysemu.h b/include/sysemu/sysemu.h
index 61579ae71e..173dfbb539 100644
--- a/include/sysemu/sysemu.h
+++ b/include/sysemu/sysemu.h
@@ -171,6 +171,9 @@ void device_add_bootindex_property(Object *obj, int32_t *bootindex,
DeviceState *dev, Error **errp);
void restore_boot_order(void *opaque);
void validate_bootdevices(const char *devices, Error **errp);
+void add_boot_device_lchs(DeviceState *dev, const char *suffix,
+ uint32_t lcyls, uint32_t lheads, uint32_t lsecs);
+void del_boot_device_lchs(DeviceState *dev, const char *suffix);
/* handler to set the boot_device order for a specific type of MachineClass */
typedef void QEMUBootSetHandler(void *opaque, const char *boot_order,
--
2.13.3
^ permalink raw reply related [flat|nested] 25+ messages in thread
* [Qemu-devel] [QEMU] [PATCH v5 4/8] scsi: Propagate unrealize() callback to scsi-hd
2019-06-26 12:39 [Qemu-devel] [QEMU] [PATCH v5 0/8] Add Qemu to SeaBIOS LCHS interface Sam Eiderman
` (2 preceding siblings ...)
2019-06-26 12:39 ` [Qemu-devel] [QEMU] [PATCH v5 3/8] bootdevice: Add interface to gather LCHS Sam Eiderman
@ 2019-06-26 12:39 ` Sam Eiderman
2019-08-13 19:06 ` Max Reitz
2019-06-26 12:39 ` [Qemu-devel] [QEMU] [PATCH v5 5/8] bootdevice: Gather LCHS from all relevant devices Sam Eiderman
` (5 subsequent siblings)
9 siblings, 1 reply; 25+ messages in thread
From: Sam Eiderman @ 2019-06-26 12:39 UTC (permalink / raw)
To: kwolf, qemu-block, qemu-devel, mreitz, seabios, kraxel, kevin
Cc: liran.alon, shmuel.eiderman, karl.heubaum, arbel.moshe
We will need to add LCHS removal logic to scsi-hd's unrealize() in the
next commit.
Reviewed-by: Karl Heubaum <karl.heubaum@oracle.com>
Reviewed-by: Arbel Moshe <arbel.moshe@oracle.com>
Signed-off-by: Sam Eiderman <shmuel.eiderman@oracle.com>
---
hw/scsi/scsi-bus.c | 15 +++++++++++++++
include/hw/scsi/scsi.h | 1 +
2 files changed, 16 insertions(+)
diff --git a/hw/scsi/scsi-bus.c b/hw/scsi/scsi-bus.c
index c480553083..f6fe497a1a 100644
--- a/hw/scsi/scsi-bus.c
+++ b/hw/scsi/scsi-bus.c
@@ -55,6 +55,14 @@ static void scsi_device_realize(SCSIDevice *s, Error **errp)
}
}
+static void scsi_device_unrealize(SCSIDevice *s, Error **errp)
+{
+ SCSIDeviceClass *sc = SCSI_DEVICE_GET_CLASS(s);
+ if (sc->unrealize) {
+ sc->unrealize(s, errp);
+ }
+}
+
int scsi_bus_parse_cdb(SCSIDevice *dev, SCSICommand *cmd, uint8_t *buf,
void *hba_private)
{
@@ -213,11 +221,18 @@ static void scsi_qdev_realize(DeviceState *qdev, Error **errp)
static void scsi_qdev_unrealize(DeviceState *qdev, Error **errp)
{
SCSIDevice *dev = SCSI_DEVICE(qdev);
+ Error *local_err = NULL;
if (dev->vmsentry) {
qemu_del_vm_change_state_handler(dev->vmsentry);
}
+ scsi_device_unrealize(dev, &local_err);
+ if (local_err) {
+ error_propagate(errp, local_err);
+ return;
+ }
+
scsi_device_purge_requests(dev, SENSE_CODE(NO_SENSE));
blockdev_mark_auto_del(dev->conf.blk);
}
diff --git a/include/hw/scsi/scsi.h b/include/hw/scsi/scsi.h
index 426566a5c6..8cf71f910d 100644
--- a/include/hw/scsi/scsi.h
+++ b/include/hw/scsi/scsi.h
@@ -59,6 +59,7 @@ struct SCSIRequest {
typedef struct SCSIDeviceClass {
DeviceClass parent_class;
void (*realize)(SCSIDevice *dev, Error **errp);
+ void (*unrealize)(SCSIDevice *dev, Error **errp);
int (*parse_cdb)(SCSIDevice *dev, SCSICommand *cmd, uint8_t *buf,
void *hba_private);
SCSIRequest *(*alloc_req)(SCSIDevice *s, uint32_t tag, uint32_t lun,
--
2.13.3
^ permalink raw reply related [flat|nested] 25+ messages in thread
* [Qemu-devel] [QEMU] [PATCH v5 5/8] bootdevice: Gather LCHS from all relevant devices
2019-06-26 12:39 [Qemu-devel] [QEMU] [PATCH v5 0/8] Add Qemu to SeaBIOS LCHS interface Sam Eiderman
` (3 preceding siblings ...)
2019-06-26 12:39 ` [Qemu-devel] [QEMU] [PATCH v5 4/8] scsi: Propagate unrealize() callback to scsi-hd Sam Eiderman
@ 2019-06-26 12:39 ` Sam Eiderman
2019-08-13 19:05 ` Max Reitz
2019-06-26 12:39 ` [Qemu-devel] [QEMU] [PATCH v5 6/8] bootdevice: Refactor get_boot_devices_list Sam Eiderman
` (4 subsequent siblings)
9 siblings, 1 reply; 25+ messages in thread
From: Sam Eiderman @ 2019-06-26 12:39 UTC (permalink / raw)
To: kwolf, qemu-block, qemu-devel, mreitz, seabios, kraxel, kevin
Cc: liran.alon, shmuel.eiderman, karl.heubaum, arbel.moshe
Relevant devices are:
* ide-hd (and ide-cd, ide-drive)
* scsi-hd (and scsi-cd, scsi-disk, scsi-block)
* virtio-blk-pci
We do not call del_boot_device_lchs() for ide-* since we don't need to -
IDE block devices do not support unplugging.
Reviewed-by: Karl Heubaum <karl.heubaum@oracle.com>
Reviewed-by: Arbel Moshe <arbel.moshe@oracle.com>
Signed-off-by: Sam Eiderman <shmuel.eiderman@oracle.com>
---
hw/block/virtio-blk.c | 6 ++++++
hw/ide/qdev.c | 5 +++++
hw/scsi/scsi-disk.c | 14 ++++++++++++++
3 files changed, 25 insertions(+)
diff --git a/hw/block/virtio-blk.c b/hw/block/virtio-blk.c
index 06e57a4d39..787bbd768a 100644
--- a/hw/block/virtio-blk.c
+++ b/hw/block/virtio-blk.c
@@ -1182,6 +1182,11 @@ static void virtio_blk_device_realize(DeviceState *dev, Error **errp)
blk_set_guest_block_size(s->blk, s->conf.conf.logical_block_size);
blk_iostatus_enable(s->blk);
+
+ add_boot_device_lchs(dev, "/disk@0,0",
+ (&conf->conf)->lcyls,
+ (&conf->conf)->lheads,
+ (&conf->conf)->lsecs);
}
static void virtio_blk_device_unrealize(DeviceState *dev, Error **errp)
@@ -1189,6 +1194,7 @@ static void virtio_blk_device_unrealize(DeviceState *dev, Error **errp)
VirtIODevice *vdev = VIRTIO_DEVICE(dev);
VirtIOBlock *s = VIRTIO_BLK(dev);
+ del_boot_device_lchs(dev, "/disk@0,0");
virtio_blk_data_plane_destroy(s->dataplane);
s->dataplane = NULL;
qemu_del_vm_change_state_handler(s->change);
diff --git a/hw/ide/qdev.c b/hw/ide/qdev.c
index 9cae3205df..07f429d5e3 100644
--- a/hw/ide/qdev.c
+++ b/hw/ide/qdev.c
@@ -215,6 +215,11 @@ static void ide_dev_initfn(IDEDevice *dev, IDEDriveKind kind, Error **errp)
add_boot_device_path(dev->conf.bootindex, &dev->qdev,
dev->unit ? "/disk@1" : "/disk@0");
+
+ add_boot_device_lchs(&dev->qdev, dev->unit ? "/disk@1" : "/disk@0",
+ (&dev->conf)->lcyls,
+ (&dev->conf)->lheads,
+ (&dev->conf)->lsecs);
}
static void ide_dev_get_bootindex(Object *obj, Visitor *v, const char *name,
diff --git a/hw/scsi/scsi-disk.c b/hw/scsi/scsi-disk.c
index 7b89ac798b..3451aefdea 100644
--- a/hw/scsi/scsi-disk.c
+++ b/hw/scsi/scsi-disk.c
@@ -2390,6 +2390,16 @@ static void scsi_realize(SCSIDevice *dev, Error **errp)
blk_set_guest_block_size(s->qdev.conf.blk, s->qdev.blocksize);
blk_iostatus_enable(s->qdev.conf.blk);
+
+ add_boot_device_lchs(&dev->qdev, NULL,
+ (&dev->conf)->lcyls,
+ (&dev->conf)->lheads,
+ (&dev->conf)->lsecs);
+}
+
+static void scsi_unrealize(SCSIDevice *dev, Error **errp)
+{
+ del_boot_device_lchs(&dev->qdev, NULL);
}
static void scsi_hd_realize(SCSIDevice *dev, Error **errp)
@@ -2988,6 +2998,7 @@ static void scsi_hd_class_initfn(ObjectClass *klass, void *data)
SCSIDeviceClass *sc = SCSI_DEVICE_CLASS(klass);
sc->realize = scsi_hd_realize;
+ sc->unrealize = scsi_unrealize;
sc->alloc_req = scsi_new_request;
sc->unit_attention_reported = scsi_disk_unit_attention_reported;
dc->desc = "virtual SCSI disk";
@@ -3019,6 +3030,7 @@ static void scsi_cd_class_initfn(ObjectClass *klass, void *data)
SCSIDeviceClass *sc = SCSI_DEVICE_CLASS(klass);
sc->realize = scsi_cd_realize;
+ sc->unrealize = scsi_unrealize;
sc->alloc_req = scsi_new_request;
sc->unit_attention_reported = scsi_disk_unit_attention_reported;
dc->desc = "virtual SCSI CD-ROM";
@@ -3054,6 +3066,7 @@ static void scsi_block_class_initfn(ObjectClass *klass, void *data)
SCSIDiskClass *sdc = SCSI_DISK_BASE_CLASS(klass);
sc->realize = scsi_block_realize;
+ sc->unrealize = scsi_unrealize;
sc->alloc_req = scsi_block_new_request;
sc->parse_cdb = scsi_block_parse_cdb;
sdc->dma_readv = scsi_block_dma_readv;
@@ -3095,6 +3108,7 @@ static void scsi_disk_class_initfn(ObjectClass *klass, void *data)
SCSIDeviceClass *sc = SCSI_DEVICE_CLASS(klass);
sc->realize = scsi_disk_realize;
+ sc->unrealize = scsi_unrealize;
sc->alloc_req = scsi_new_request;
sc->unit_attention_reported = scsi_disk_unit_attention_reported;
dc->fw_name = "disk";
--
2.13.3
^ permalink raw reply related [flat|nested] 25+ messages in thread
* [Qemu-devel] [QEMU] [PATCH v5 6/8] bootdevice: Refactor get_boot_devices_list
2019-06-26 12:39 [Qemu-devel] [QEMU] [PATCH v5 0/8] Add Qemu to SeaBIOS LCHS interface Sam Eiderman
` (4 preceding siblings ...)
2019-06-26 12:39 ` [Qemu-devel] [QEMU] [PATCH v5 5/8] bootdevice: Gather LCHS from all relevant devices Sam Eiderman
@ 2019-06-26 12:39 ` Sam Eiderman
2019-06-26 12:39 ` [Qemu-devel] [QEMU] [PATCH v5 7/8] bootdevice: FW_CFG interface for LCHS values Sam Eiderman
` (3 subsequent siblings)
9 siblings, 0 replies; 25+ messages in thread
From: Sam Eiderman @ 2019-06-26 12:39 UTC (permalink / raw)
To: kwolf, qemu-block, qemu-devel, mreitz, seabios, kraxel, kevin
Cc: liran.alon, shmuel.eiderman, karl.heubaum, arbel.moshe
Move device name construction to a separate function.
We will reuse this function in the following commit to pass logical CHS
parameters through fw_cfg much like we currently pass bootindex.
Reviewed-by: Karl Heubaum <karl.heubaum@oracle.com>
Reviewed-by: Arbel Moshe <arbel.moshe@oracle.com>
Signed-off-by: Sam Eiderman <shmuel.eiderman@oracle.com>
---
bootdevice.c | 61 +++++++++++++++++++++++++++++++++---------------------------
1 file changed, 34 insertions(+), 27 deletions(-)
diff --git a/bootdevice.c b/bootdevice.c
index bc5e1c2de4..2b12fb85a4 100644
--- a/bootdevice.c
+++ b/bootdevice.c
@@ -202,6 +202,39 @@ DeviceState *get_boot_device(uint32_t position)
return res;
}
+static char *get_boot_device_path(DeviceState *dev, bool ignore_suffixes,
+ char *suffix)
+{
+ char *devpath = NULL, *s = NULL, *d, *bootpath;
+
+ if (dev) {
+ devpath = qdev_get_fw_dev_path(dev);
+ assert(devpath);
+ }
+
+ if (!ignore_suffixes) {
+ if (dev) {
+ d = qdev_get_own_fw_dev_path_from_handler(dev->parent_bus, dev);
+ if (d) {
+ assert(!suffix);
+ s = d;
+ } else {
+ s = g_strdup(suffix);
+ }
+ } else {
+ s = g_strdup(suffix);
+ }
+ }
+
+ bootpath = g_strdup_printf("%s%s",
+ devpath ? devpath : "",
+ s ? s : "");
+ g_free(devpath);
+ g_free(s);
+
+ return bootpath;
+}
+
/*
* This function returns null terminated string that consist of new line
* separated device paths.
@@ -218,36 +251,10 @@ char *get_boot_devices_list(size_t *size)
bool ignore_suffixes = mc->ignore_boot_device_suffixes;
QTAILQ_FOREACH(i, &fw_boot_order, link) {
- char *devpath = NULL, *suffix = NULL;
char *bootpath;
- char *d;
size_t len;
- if (i->dev) {
- devpath = qdev_get_fw_dev_path(i->dev);
- assert(devpath);
- }
-
- if (!ignore_suffixes) {
- if (i->dev) {
- d = qdev_get_own_fw_dev_path_from_handler(i->dev->parent_bus,
- i->dev);
- if (d) {
- assert(!i->suffix);
- suffix = d;
- } else {
- suffix = g_strdup(i->suffix);
- }
- } else {
- suffix = g_strdup(i->suffix);
- }
- }
-
- bootpath = g_strdup_printf("%s%s",
- devpath ? devpath : "",
- suffix ? suffix : "");
- g_free(devpath);
- g_free(suffix);
+ bootpath = get_boot_device_path(i->dev, ignore_suffixes, i->suffix);
if (total) {
list[total-1] = '\n';
--
2.13.3
^ permalink raw reply related [flat|nested] 25+ messages in thread
* [Qemu-devel] [QEMU] [PATCH v5 7/8] bootdevice: FW_CFG interface for LCHS values
2019-06-26 12:39 [Qemu-devel] [QEMU] [PATCH v5 0/8] Add Qemu to SeaBIOS LCHS interface Sam Eiderman
` (5 preceding siblings ...)
2019-06-26 12:39 ` [Qemu-devel] [QEMU] [PATCH v5 6/8] bootdevice: Refactor get_boot_devices_list Sam Eiderman
@ 2019-06-26 12:39 ` Sam Eiderman
2019-06-26 12:39 ` [Qemu-devel] [QEMU] [PATCH v5 8/8] hd-geo-test: Add tests for lchs override Sam Eiderman
` (2 subsequent siblings)
9 siblings, 0 replies; 25+ messages in thread
From: Sam Eiderman @ 2019-06-26 12:39 UTC (permalink / raw)
To: kwolf, qemu-block, qemu-devel, mreitz, seabios, kraxel, kevin
Cc: liran.alon, shmuel.eiderman, karl.heubaum, arbel.moshe
Using fw_cfg, supply logical CHS values directly from QEMU to the BIOS.
Non-standard logical geometries break under QEMU.
A virtual disk which contains an operating system which depends on
logical geometries (consistent values being reported from BIOS INT13
AH=08) will most likely break under QEMU/SeaBIOS if it has non-standard
logical geometries - for example 56 SPT (sectors per track).
No matter what QEMU will report - SeaBIOS, for large enough disks - will
use LBA translation, which will report 63 SPT instead.
In addition we cannot force SeaBIOS to rely on physical geometries at
all. A virtio-blk-pci virtual disk with 255 phyiscal heads cannot
report more than 16 physical heads when moved to an IDE controller,
since the ATA spec allows a maximum of 16 heads - this is an artifact of
virtualization.
By supplying the logical geometries directly we are able to support such
"exotic" disks.
We serialize this information in a similar way to the "bootorder"
interface.
The new fw_cfg entry is "bios-geometry".
Reviewed-by: Karl Heubaum <karl.heubaum@oracle.com>
Reviewed-by: Arbel Moshe <arbel.moshe@oracle.com>
Signed-off-by: Sam Eiderman <shmuel.eiderman@oracle.com>
---
bootdevice.c | 32 ++++++++++++++++++++++++++++++++
hw/nvram/fw_cfg.c | 14 +++++++++++---
include/sysemu/sysemu.h | 1 +
3 files changed, 44 insertions(+), 3 deletions(-)
diff --git a/bootdevice.c b/bootdevice.c
index 2b12fb85a4..b034ad7bdc 100644
--- a/bootdevice.c
+++ b/bootdevice.c
@@ -405,3 +405,35 @@ void del_boot_device_lchs(DeviceState *dev, const char *suffix)
}
}
}
+
+/* Serialized as: (device name\0 + lchs struct) x devices */
+char *get_boot_devices_lchs_list(size_t *size)
+{
+ FWLCHSEntry *i;
+ size_t total = 0;
+ char *list = NULL;
+
+ QTAILQ_FOREACH(i, &fw_lchs, link) {
+ char *bootpath;
+ char *chs_string;
+ size_t len;
+
+ bootpath = get_boot_device_path(i->dev, false, i->suffix);
+ chs_string = g_strdup_printf("%s %" PRIu32 " %" PRIu32 " %" PRIu32,
+ bootpath, i->lcyls, i->lheads, i->lsecs);
+
+ if (total) {
+ list[total - 1] = '\n';
+ }
+ len = strlen(chs_string) + 1;
+ list = g_realloc(list, total + len);
+ memcpy(&list[total], chs_string, len);
+ total += len;
+ g_free(chs_string);
+ g_free(bootpath);
+ }
+
+ *size = total;
+
+ return list;
+}
diff --git a/hw/nvram/fw_cfg.c b/hw/nvram/fw_cfg.c
index 9f7b7789bc..c1230fe11c 100644
--- a/hw/nvram/fw_cfg.c
+++ b/hw/nvram/fw_cfg.c
@@ -916,13 +916,21 @@ void *fw_cfg_modify_file(FWCfgState *s, const char *filename,
static void fw_cfg_machine_reset(void *opaque)
{
+ MachineClass *mc = MACHINE_GET_CLASS(qdev_get_machine());
+ FWCfgState *s = opaque;
void *ptr;
size_t len;
- FWCfgState *s = opaque;
- char *bootindex = get_boot_devices_list(&len);
+ char *buf;
- ptr = fw_cfg_modify_file(s, "bootorder", (uint8_t *)bootindex, len);
+ buf = get_boot_devices_list(&len);
+ ptr = fw_cfg_modify_file(s, "bootorder", (uint8_t *)buf, len);
g_free(ptr);
+
+ if (!mc->legacy_fw_cfg_order) {
+ buf = get_boot_devices_lchs_list(&len);
+ ptr = fw_cfg_modify_file(s, "bios-geometry", (uint8_t *)buf, len);
+ g_free(ptr);
+ }
}
static void fw_cfg_machine_ready(struct Notifier *n, void *data)
diff --git a/include/sysemu/sysemu.h b/include/sysemu/sysemu.h
index 173dfbb539..1ca8799588 100644
--- a/include/sysemu/sysemu.h
+++ b/include/sysemu/sysemu.h
@@ -174,6 +174,7 @@ void validate_bootdevices(const char *devices, Error **errp);
void add_boot_device_lchs(DeviceState *dev, const char *suffix,
uint32_t lcyls, uint32_t lheads, uint32_t lsecs);
void del_boot_device_lchs(DeviceState *dev, const char *suffix);
+char *get_boot_devices_lchs_list(size_t *size);
/* handler to set the boot_device order for a specific type of MachineClass */
typedef void QEMUBootSetHandler(void *opaque, const char *boot_order,
--
2.13.3
^ permalink raw reply related [flat|nested] 25+ messages in thread
* [Qemu-devel] [QEMU] [PATCH v5 8/8] hd-geo-test: Add tests for lchs override
2019-06-26 12:39 [Qemu-devel] [QEMU] [PATCH v5 0/8] Add Qemu to SeaBIOS LCHS interface Sam Eiderman
` (6 preceding siblings ...)
2019-06-26 12:39 ` [Qemu-devel] [QEMU] [PATCH v5 7/8] bootdevice: FW_CFG interface for LCHS values Sam Eiderman
@ 2019-06-26 12:39 ` Sam Eiderman
2019-07-01 7:41 ` [Qemu-devel] [QEMU] [PATCH v5 0/8] Add Qemu to SeaBIOS LCHS interface Gerd Hoffmann
2019-08-13 19:35 ` [Qemu-devel] " Max Reitz
9 siblings, 0 replies; 25+ messages in thread
From: Sam Eiderman @ 2019-06-26 12:39 UTC (permalink / raw)
To: kwolf, qemu-block, qemu-devel, mreitz, seabios, kraxel, kevin
Cc: liran.alon, shmuel.eiderman, karl.heubaum, arbel.moshe
Add QTest tests to check the logical geometry override option.
The tests in hd-geo-test are out of date - they only test IDE and do not
test interesting MBRs.
I added a few helper functions which will make adding more tests easier.
QTest's fw_cfg helper functions support only legacy fw_cfg, so I had to
read the new fw_cfg layout on my own.
Creating qcow2 disks with specific size and MBR layout is currently
unused - we only use a default empty MBR.
Reviewed-by: Karl Heubaum <karl.heubaum@oracle.com>
Reviewed-by: Arbel Moshe <arbel.moshe@oracle.com>
Signed-off-by: Sam Eiderman <shmuel.eiderman@oracle.com>
---
tests/Makefile.include | 2 +-
tests/hd-geo-test.c | 582 +++++++++++++++++++++++++++++++++++++++++++++++++
2 files changed, 583 insertions(+), 1 deletion(-)
diff --git a/tests/Makefile.include b/tests/Makefile.include
index 46a36c2c95..55ea165ed4 100644
--- a/tests/Makefile.include
+++ b/tests/Makefile.include
@@ -765,7 +765,7 @@ tests/ide-test$(EXESUF): tests/ide-test.o $(libqos-pc-obj-y)
tests/ahci-test$(EXESUF): tests/ahci-test.o $(libqos-pc-obj-y) qemu-img$(EXESUF)
tests/ipmi-kcs-test$(EXESUF): tests/ipmi-kcs-test.o
tests/ipmi-bt-test$(EXESUF): tests/ipmi-bt-test.o
-tests/hd-geo-test$(EXESUF): tests/hd-geo-test.o
+tests/hd-geo-test$(EXESUF): tests/hd-geo-test.o $(libqos-obj-y)
tests/boot-order-test$(EXESUF): tests/boot-order-test.o $(libqos-obj-y)
tests/boot-serial-test$(EXESUF): tests/boot-serial-test.o $(libqos-obj-y)
tests/bios-tables-test$(EXESUF): tests/bios-tables-test.o \
diff --git a/tests/hd-geo-test.c b/tests/hd-geo-test.c
index 62eb624726..002f5c4a43 100644
--- a/tests/hd-geo-test.c
+++ b/tests/hd-geo-test.c
@@ -17,7 +17,12 @@
#include "qemu/osdep.h"
#include "qemu-common.h"
+#include "qemu/bswap.h"
+#include "qapi/qmp/qlist.h"
#include "libqtest.h"
+#include "libqos/fw_cfg.h"
+#include "libqos/libqos.h"
+#include "standard-headers/linux/qemu_fw_cfg.h"
#define ARGV_SIZE 256
@@ -388,6 +393,568 @@ static void test_ide_drive_cd_0(void)
qtest_quit(qts);
}
+typedef struct {
+ bool active;
+ uint32_t head;
+ uint32_t sector;
+ uint32_t cyl;
+ uint32_t end_head;
+ uint32_t end_sector;
+ uint32_t end_cyl;
+ uint32_t start_sect;
+ uint32_t nr_sects;
+} MBRpartitions[4];
+
+static MBRpartitions empty_mbr = { {false, 0, 0, 0, 0, 0, 0, 0, 0},
+ {false, 0, 0, 0, 0, 0, 0, 0, 0},
+ {false, 0, 0, 0, 0, 0, 0, 0, 0},
+ {false, 0, 0, 0, 0, 0, 0, 0, 0} };
+
+static char *create_qcow2_with_mbr(MBRpartitions mbr, uint64_t sectors)
+{
+ const char *template = "/tmp/qtest.XXXXXX";
+ char *raw_path = strdup(template);
+ char *qcow2_path = strdup(template);
+ char cmd[100 + 2 * PATH_MAX];
+ uint8_t buf[512];
+ int i, ret, fd, offset;
+ uint64_t qcow2_size = sectors * 512;
+ uint8_t status, parttype, head, sector, cyl;
+ char *qemu_img_path;
+ char *qemu_img_abs_path;
+
+ offset = 0xbe;
+
+ for (i = 0; i < 4; i++) {
+ status = mbr[i].active ? 0x80 : 0x00;
+ g_assert(mbr[i].head < 256);
+ g_assert(mbr[i].sector < 64);
+ g_assert(mbr[i].cyl < 1024);
+ head = mbr[i].head;
+ sector = mbr[i].sector + ((mbr[i].cyl & 0x300) >> 2);
+ cyl = mbr[i].cyl & 0xff;
+
+ buf[offset + 0x0] = status;
+ buf[offset + 0x1] = head;
+ buf[offset + 0x2] = sector;
+ buf[offset + 0x3] = cyl;
+
+ parttype = 0;
+ g_assert(mbr[i].end_head < 256);
+ g_assert(mbr[i].end_sector < 64);
+ g_assert(mbr[i].end_cyl < 1024);
+ head = mbr[i].end_head;
+ sector = mbr[i].end_sector + ((mbr[i].end_cyl & 0x300) >> 2);
+ cyl = mbr[i].end_cyl & 0xff;
+
+ buf[offset + 0x4] = parttype;
+ buf[offset + 0x5] = head;
+ buf[offset + 0x6] = sector;
+ buf[offset + 0x7] = cyl;
+
+ (*(uint32_t *)&buf[offset + 0x8]) = cpu_to_le32(mbr[i].start_sect);
+ (*(uint32_t *)&buf[offset + 0xc]) = cpu_to_le32(mbr[i].nr_sects);
+
+ offset += 0x10;
+ }
+
+ fd = mkstemp(raw_path);
+ g_assert(fd);
+ close(fd);
+
+ fd = open(raw_path, O_WRONLY);
+ g_assert(fd >= 0);
+ ret = write(fd, buf, sizeof(buf));
+ g_assert(ret == sizeof(buf));
+ close(fd);
+
+ fd = mkstemp(qcow2_path);
+ g_assert(fd);
+ close(fd);
+
+ qemu_img_path = getenv("QTEST_QEMU_IMG");
+ g_assert(qemu_img_path);
+ qemu_img_abs_path = realpath(qemu_img_path, NULL);
+ g_assert(qemu_img_abs_path);
+
+ ret = snprintf(cmd, sizeof(cmd),
+ "%s convert -f raw -O qcow2 %s %s > /dev/null",
+ qemu_img_abs_path,
+ raw_path, qcow2_path);
+ g_assert((0 < ret) && (ret <= sizeof(cmd)));
+ ret = system(cmd);
+ g_assert(ret == 0);
+
+ ret = snprintf(cmd, sizeof(cmd),
+ "%s resize %s %" PRIu64 " > /dev/null",
+ qemu_img_abs_path,
+ qcow2_path, qcow2_size);
+ g_assert((0 < ret) && (ret <= sizeof(cmd)));
+ ret = system(cmd);
+ g_assert(ret == 0);
+
+ free(qemu_img_abs_path);
+
+ unlink(raw_path);
+ free(raw_path);
+
+ return qcow2_path;
+}
+
+struct QemuCfgFile {
+ uint32_t size; /* file size */
+ uint16_t select; /* write this to 0x510 to read it */
+ uint16_t reserved;
+ char name[56];
+};
+
+static uint16_t find_fw_cfg_file(QFWCFG *fw_cfg,
+ const char *filename)
+{
+ struct QemuCfgFile qfile;
+ uint32_t count, e;
+ uint16_t select;
+
+ count = qfw_cfg_get_u32(fw_cfg, FW_CFG_FILE_DIR);
+ count = be32_to_cpu(count);
+ for (select = 0, e = 0; e < count; e++) {
+ qfw_cfg_read_data(fw_cfg, &qfile, sizeof(qfile));
+ if (!strcmp(filename, qfile.name)) {
+ select = be16_to_cpu(qfile.select);
+ }
+ }
+
+ return select;
+}
+
+static void read_fw_cfg_file(QFWCFG *fw_cfg,
+ const char *filename,
+ void *data,
+ size_t len)
+{
+ uint16_t select = find_fw_cfg_file(fw_cfg, filename);
+
+ g_assert(select);
+
+ qfw_cfg_get(fw_cfg, select, data, len);
+}
+
+#define BIOS_GEOMETRY_MAX_SIZE 10000
+
+typedef struct {
+ uint32_t c;
+ uint32_t h;
+ uint32_t s;
+} CHS;
+
+typedef struct {
+ const char *dev_path;
+ CHS chs;
+} CHSResult;
+
+static void read_bootdevices(QFWCFG *fw_cfg, CHSResult expected[])
+{
+ char *buf = g_malloc0(BIOS_GEOMETRY_MAX_SIZE);
+ char *cur;
+ GList *results = NULL, *cur_result;
+ CHSResult *r;
+ int i;
+ int res;
+ bool found;
+
+ read_fw_cfg_file(fw_cfg, "bios-geometry", buf, BIOS_GEOMETRY_MAX_SIZE);
+
+ for (cur = buf; *cur; cur++) {
+ if (*cur == '\n') {
+ *cur = '\0';
+ }
+ }
+ cur = buf;
+
+ while (strlen(cur)) {
+
+ r = g_malloc0(sizeof(*r));
+ r->dev_path = g_malloc0(strlen(cur) + 1);
+ res = sscanf(cur, "%s %" PRIu32 " %" PRIu32 " %" PRIu32,
+ (char *)r->dev_path,
+ &(r->chs.c), &(r->chs.h), &(r->chs.s));
+
+ g_assert(res == 4);
+
+ results = g_list_prepend(results, r);
+
+ cur += strlen(cur) + 1;
+ }
+
+ i = 0;
+
+ while (expected[i].dev_path) {
+ found = false;
+ cur_result = results;
+ while (cur_result) {
+ r = cur_result->data;
+ if (!strcmp(r->dev_path, expected[i].dev_path) &&
+ !memcmp(&(r->chs), &(expected[i].chs), sizeof(r->chs))) {
+ found = true;
+ break;
+ }
+ cur_result = g_list_next(cur_result);
+ }
+ g_assert(found);
+ g_free((char *)((CHSResult *)cur_result->data)->dev_path);
+ g_free(cur_result->data);
+ results = g_list_delete_link(results, cur_result);
+ i++;
+ }
+
+ g_assert(results == NULL);
+
+ g_free(buf);
+}
+
+#define MAX_DRIVES 30
+
+typedef struct {
+ char **argv;
+ int argc;
+ char **drives;
+ int n_drives;
+ int n_scsi_disks;
+ int n_scsi_controllers;
+ int n_virtio_disks;
+} TestArgs;
+
+static TestArgs *create_args(void)
+{
+ TestArgs *args = g_malloc0(sizeof(*args));
+ args->argv = g_new0(char *, ARGV_SIZE);
+ args->argc = append_arg(args->argc, args->argv,
+ ARGV_SIZE, g_strdup("-nodefaults"));
+ args->drives = g_new0(char *, MAX_DRIVES);
+ return args;
+}
+
+static void add_drive_with_mbr(TestArgs *args,
+ MBRpartitions mbr, uint64_t sectors)
+{
+ char *img_file_name;
+ char part[300];
+ int ret;
+
+ g_assert(args->n_drives < MAX_DRIVES);
+
+ img_file_name = create_qcow2_with_mbr(mbr, sectors);
+
+ args->drives[args->n_drives] = img_file_name;
+ ret = snprintf(part, sizeof(part),
+ "-drive file=%s,if=none,format=qcow2,id=disk%d",
+ img_file_name, args->n_drives);
+ g_assert((0 < ret) && (ret <= sizeof(part)));
+ args->argc = append_arg(args->argc, args->argv, ARGV_SIZE, g_strdup(part));
+ args->n_drives++;
+}
+
+static void add_ide_disk(TestArgs *args,
+ int drive_idx, int bus, int unit, int c, int h, int s)
+{
+ char part[300];
+ int ret;
+
+ ret = snprintf(part, sizeof(part),
+ "-device ide-hd,drive=disk%d,bus=ide.%d,unit=%d,"
+ "lcyls=%d,lheads=%d,lsecs=%d",
+ drive_idx, bus, unit, c, h, s);
+ g_assert((0 < ret) && (ret <= sizeof(part)));
+ args->argc = append_arg(args->argc, args->argv, ARGV_SIZE, g_strdup(part));
+}
+
+static void add_scsi_controller(TestArgs *args,
+ const char *type,
+ const char *bus,
+ int addr)
+{
+ char part[300];
+ int ret;
+
+ ret = snprintf(part, sizeof(part),
+ "-device %s,id=scsi%d,bus=%s,addr=%d",
+ type, args->n_scsi_controllers, bus, addr);
+ g_assert((0 < ret) && (ret <= sizeof(part)));
+ args->argc = append_arg(args->argc, args->argv, ARGV_SIZE, g_strdup(part));
+ args->n_scsi_controllers++;
+}
+
+static void add_scsi_disk(TestArgs *args,
+ int drive_idx, int bus,
+ int channel, int scsi_id, int lun,
+ int c, int h, int s)
+{
+ char part[300];
+ int ret;
+
+ ret = snprintf(part, sizeof(part),
+ "-device scsi-hd,id=scsi-disk%d,drive=disk%d,"
+ "bus=scsi%d.0,"
+ "channel=%d,scsi-id=%d,lun=%d,"
+ "lcyls=%d,lheads=%d,lsecs=%d",
+ args->n_scsi_disks, drive_idx, bus, channel, scsi_id, lun,
+ c, h, s);
+ g_assert((0 < ret) && (ret <= sizeof(part)));
+ args->argc = append_arg(args->argc, args->argv, ARGV_SIZE, g_strdup(part));
+ args->n_scsi_disks++;
+}
+
+static void add_virtio_disk(TestArgs *args,
+ int drive_idx, const char *bus, int addr,
+ int c, int h, int s)
+{
+ char part[300];
+ int ret;
+
+ ret = snprintf(part, sizeof(part),
+ "-device virtio-blk-pci,id=virtio-disk%d,"
+ "drive=disk%d,bus=%s,addr=%d,"
+ "lcyls=%d,lheads=%d,lsecs=%d",
+ args->n_virtio_disks, drive_idx, bus, addr, c, h, s);
+ g_assert((0 < ret) && (ret <= sizeof(part)));
+ args->argc = append_arg(args->argc, args->argv, ARGV_SIZE, g_strdup(part));
+ args->n_virtio_disks++;
+}
+
+static void test_override(TestArgs *args, CHSResult expected[])
+{
+ char *joined_args;
+ QFWCFG *fw_cfg;
+ int i;
+
+ joined_args = g_strjoinv(" ", args->argv);
+
+ qtest_start(joined_args);
+ fw_cfg = pc_fw_cfg_init(global_qtest);
+
+ read_bootdevices(fw_cfg, expected);
+
+ g_free(joined_args);
+ qtest_end();
+
+ g_free(fw_cfg);
+
+ for (i = 0; i < args->n_drives; i++) {
+ unlink(args->drives[i]);
+ free(args->drives[i]);
+ }
+ g_free(args->drives);
+ g_strfreev(args->argv);
+ g_free(args);
+}
+
+static void test_override_ide(void)
+{
+ TestArgs *args = create_args();
+ CHSResult expected[] = {
+ {"/pci@i0cf8/ide@1,1/drive@0/disk@0", {10000, 120, 30} },
+ {"/pci@i0cf8/ide@1,1/drive@0/disk@1", {9000, 120, 30} },
+ {"/pci@i0cf8/ide@1,1/drive@1/disk@0", {0, 1, 1} },
+ {"/pci@i0cf8/ide@1,1/drive@1/disk@1", {1, 0, 0} },
+ {NULL, {0, 0, 0} }
+ };
+ add_drive_with_mbr(args, empty_mbr, 1);
+ add_drive_with_mbr(args, empty_mbr, 1);
+ add_drive_with_mbr(args, empty_mbr, 1);
+ add_drive_with_mbr(args, empty_mbr, 1);
+ add_ide_disk(args, 0, 0, 0, 10000, 120, 30);
+ add_ide_disk(args, 1, 0, 1, 9000, 120, 30);
+ add_ide_disk(args, 2, 1, 0, 0, 1, 1);
+ add_ide_disk(args, 3, 1, 1, 1, 0, 0);
+ test_override(args, expected);
+}
+
+static void test_override_scsi(void)
+{
+ TestArgs *args = create_args();
+ CHSResult expected[] = {
+ {"/pci@i0cf8/scsi@3/channel@0/disk@0,0", {10000, 120, 30} },
+ {"/pci@i0cf8/scsi@3/channel@0/disk@1,0", {9000, 120, 30} },
+ {"/pci@i0cf8/scsi@3/channel@0/disk@2,0", {1, 0, 0} },
+ {"/pci@i0cf8/scsi@3/channel@0/disk@3,0", {0, 1, 0} },
+ {NULL, {0, 0, 0} }
+ };
+ add_drive_with_mbr(args, empty_mbr, 1);
+ add_drive_with_mbr(args, empty_mbr, 1);
+ add_drive_with_mbr(args, empty_mbr, 1);
+ add_drive_with_mbr(args, empty_mbr, 1);
+ add_scsi_controller(args, "lsi53c895a", "pci.0", 3);
+ add_scsi_disk(args, 0, 0, 0, 0, 0, 10000, 120, 30);
+ add_scsi_disk(args, 1, 0, 0, 1, 0, 9000, 120, 30);
+ add_scsi_disk(args, 2, 0, 0, 2, 0, 1, 0, 0);
+ add_scsi_disk(args, 3, 0, 0, 3, 0, 0, 1, 0);
+ test_override(args, expected);
+}
+
+static void test_override_scsi_2_controllers(void)
+{
+ TestArgs *args = create_args();
+ CHSResult expected[] = {
+ {"/pci@i0cf8/scsi@3/channel@0/disk@0,0", {10000, 120, 30} },
+ {"/pci@i0cf8/scsi@3/channel@0/disk@1,0", {9000, 120, 30} },
+ {"/pci@i0cf8/scsi@4/channel@0/disk@0,1", {1, 0, 0} },
+ {"/pci@i0cf8/scsi@4/channel@0/disk@1,2", {0, 1, 0} },
+ {NULL, {0, 0, 0} }
+ };
+ add_drive_with_mbr(args, empty_mbr, 1);
+ add_drive_with_mbr(args, empty_mbr, 1);
+ add_drive_with_mbr(args, empty_mbr, 1);
+ add_drive_with_mbr(args, empty_mbr, 1);
+ add_scsi_controller(args, "lsi53c895a", "pci.0", 3);
+ add_scsi_controller(args, "virtio-scsi-pci", "pci.0", 4);
+ add_scsi_disk(args, 0, 0, 0, 0, 0, 10000, 120, 30);
+ add_scsi_disk(args, 1, 0, 0, 1, 0, 9000, 120, 30);
+ add_scsi_disk(args, 2, 1, 0, 0, 1, 1, 0, 0);
+ add_scsi_disk(args, 3, 1, 0, 1, 2, 0, 1, 0);
+ test_override(args, expected);
+}
+
+static void test_override_virtio_blk(void)
+{
+ TestArgs *args = create_args();
+ CHSResult expected[] = {
+ {"/pci@i0cf8/scsi@3/disk@0,0", {10000, 120, 30} },
+ {"/pci@i0cf8/scsi@4/disk@0,0", {9000, 120, 30} },
+ {NULL, {0, 0, 0} }
+ };
+ add_drive_with_mbr(args, empty_mbr, 1);
+ add_drive_with_mbr(args, empty_mbr, 1);
+ add_virtio_disk(args, 0, "pci.0", 3, 10000, 120, 30);
+ add_virtio_disk(args, 1, "pci.0", 4, 9000, 120, 30);
+ test_override(args, expected);
+}
+
+static void test_override_zero_chs(void)
+{
+ TestArgs *args = create_args();
+ CHSResult expected[] = {
+ {NULL, {0, 0, 0} }
+ };
+ add_drive_with_mbr(args, empty_mbr, 1);
+ add_ide_disk(args, 0, 1, 1, 0, 0, 0);
+ test_override(args, expected);
+}
+
+static void test_override_scsi_hot_unplug(void)
+{
+ char *joined_args;
+ QFWCFG *fw_cfg;
+ QDict *response;
+ int i;
+ TestArgs *args = create_args();
+ CHSResult expected[] = {
+ {"/pci@i0cf8/scsi@2/channel@0/disk@0,0", {10000, 120, 30} },
+ {"/pci@i0cf8/scsi@2/channel@0/disk@1,0", {20, 20, 20} },
+ {NULL, {0, 0, 0} }
+ };
+ CHSResult expected2[] = {
+ {"/pci@i0cf8/scsi@2/channel@0/disk@1,0", {20, 20, 20} },
+ {NULL, {0, 0, 0} }
+ };
+ add_drive_with_mbr(args, empty_mbr, 1);
+ add_drive_with_mbr(args, empty_mbr, 1);
+ add_scsi_controller(args, "virtio-scsi-pci", "pci.0", 2);
+ add_scsi_disk(args, 0, 0, 0, 0, 0, 10000, 120, 30);
+ add_scsi_disk(args, 1, 0, 0, 1, 0, 20, 20, 20);
+
+ joined_args = g_strjoinv(" ", args->argv);
+
+ qtest_start(joined_args);
+ fw_cfg = pc_fw_cfg_init(global_qtest);
+
+ read_bootdevices(fw_cfg, expected);
+
+ /* unplug device an restart */
+ response = qmp("{ 'execute': 'device_del',"
+ " 'arguments': {'id': 'scsi-disk0' }}");
+ g_assert(response);
+ g_assert(!qdict_haskey(response, "error"));
+ qobject_unref(response);
+ response = qmp("{ 'execute': 'system_reset', 'arguments': { }}");
+ g_assert(response);
+ g_assert(!qdict_haskey(response, "error"));
+ qobject_unref(response);
+
+ qtest_qmp_eventwait(global_qtest, "RESET");
+
+ read_bootdevices(fw_cfg, expected2);
+
+ g_free(joined_args);
+ qtest_end();
+
+ g_free(fw_cfg);
+
+ for (i = 0; i < args->n_drives; i++) {
+ unlink(args->drives[i]);
+ free(args->drives[i]);
+ }
+ g_free(args->drives);
+ g_strfreev(args->argv);
+ g_free(args);
+}
+
+static void test_override_virtio_hot_unplug(void)
+{
+ char *joined_args;
+ QFWCFG *fw_cfg;
+ QDict *response;
+ int i;
+ TestArgs *args = create_args();
+ CHSResult expected[] = {
+ {"/pci@i0cf8/scsi@2/disk@0,0", {10000, 120, 30} },
+ {"/pci@i0cf8/scsi@3/disk@0,0", {20, 20, 20} },
+ {NULL, {0, 0, 0} }
+ };
+ CHSResult expected2[] = {
+ {"/pci@i0cf8/scsi@3/disk@0,0", {20, 20, 20} },
+ {NULL, {0, 0, 0} }
+ };
+ add_drive_with_mbr(args, empty_mbr, 1);
+ add_drive_with_mbr(args, empty_mbr, 1);
+ add_virtio_disk(args, 0, "pci.0", 2, 10000, 120, 30);
+ add_virtio_disk(args, 1, "pci.0", 3, 20, 20, 20);
+
+ joined_args = g_strjoinv(" ", args->argv);
+
+ qtest_start(joined_args);
+ fw_cfg = pc_fw_cfg_init(global_qtest);
+
+ read_bootdevices(fw_cfg, expected);
+
+ /* unplug device an restart */
+ response = qmp("{ 'execute': 'device_del',"
+ " 'arguments': {'id': 'virtio-disk0' }}");
+ g_assert(response);
+ g_assert(!qdict_haskey(response, "error"));
+ qobject_unref(response);
+ response = qmp("{ 'execute': 'system_reset', 'arguments': { }}");
+ g_assert(response);
+ g_assert(!qdict_haskey(response, "error"));
+ qobject_unref(response);
+
+ qtest_qmp_eventwait(global_qtest, "RESET");
+
+ read_bootdevices(fw_cfg, expected2);
+
+ g_free(joined_args);
+ qtest_end();
+
+ g_free(fw_cfg);
+
+ for (i = 0; i < args->n_drives; i++) {
+ unlink(args->drives[i]);
+ free(args->drives[i]);
+ }
+ g_free(args->drives);
+ g_strfreev(args->argv);
+ g_free(args);
+}
+
int main(int argc, char **argv)
{
Backend i;
@@ -413,6 +980,21 @@ int main(int argc, char **argv)
qtest_add_func("hd-geo/ide/device/mbr/chs", test_ide_device_mbr_chs);
qtest_add_func("hd-geo/ide/device/user/chs", test_ide_device_user_chs);
qtest_add_func("hd-geo/ide/device/user/chst", test_ide_device_user_chst);
+ if (have_qemu_img()) {
+ qtest_add_func("hd-geo/override/ide", test_override_ide);
+ qtest_add_func("hd-geo/override/scsi", test_override_scsi);
+ qtest_add_func("hd-geo/override/scsi_2_controllers",
+ test_override_scsi_2_controllers);
+ qtest_add_func("hd-geo/override/virtio_blk", test_override_virtio_blk);
+ qtest_add_func("hd-geo/override/zero_chs", test_override_zero_chs);
+ qtest_add_func("hd-geo/override/scsi_hot_unplug",
+ test_override_scsi_hot_unplug);
+ qtest_add_func("hd-geo/override/virtio_hot_unplug",
+ test_override_virtio_hot_unplug);
+ } else {
+ g_test_message("QTEST_QEMU_IMG not set or qemu-img missing; "
+ "skipping hd-geo/override/* tests");
+ }
ret = g_test_run();
--
2.13.3
^ permalink raw reply related [flat|nested] 25+ messages in thread
* Re: [Qemu-devel] [QEMU] [PATCH v5 0/8] Add Qemu to SeaBIOS LCHS interface
2019-06-26 12:39 [Qemu-devel] [QEMU] [PATCH v5 0/8] Add Qemu to SeaBIOS LCHS interface Sam Eiderman
` (7 preceding siblings ...)
2019-06-26 12:39 ` [Qemu-devel] [QEMU] [PATCH v5 8/8] hd-geo-test: Add tests for lchs override Sam Eiderman
@ 2019-07-01 7:41 ` Gerd Hoffmann
2019-07-08 17:30 ` Sam Eiderman
2019-08-13 19:35 ` [Qemu-devel] " Max Reitz
9 siblings, 1 reply; 25+ messages in thread
From: Gerd Hoffmann @ 2019-07-01 7:41 UTC (permalink / raw)
To: Sam Eiderman
Cc: kwolf, qemu-block, arbel.moshe, seabios, qemu-devel, mreitz,
kevin, liran.alon, karl.heubaum
On Wed, Jun 26, 2019 at 03:39:40PM +0300, Sam Eiderman wrote:
> v1:
>
> Non-standard logical geometries break under QEMU.
>
> A virtual disk which contains an operating system which depends on
> logical geometries (consistent values being reported from BIOS INT13
> AH=08) will most likely break under QEMU/SeaBIOS if it has non-standard
> logical geometries - for example 56 SPT (sectors per track).
> No matter what QEMU will guess - SeaBIOS, for large enough disks - will
> use LBA translation, which will report 63 SPT instead.
>
> In addition we can not enforce SeaBIOS to rely on phyiscal geometries at
> all. A virtio-blk-pci virtual disk with 255 phyiscal heads can not
> report more than 16 physical heads when moved to an IDE controller, the
> ATA spec allows a maximum of 16 heads - this is an artifact of
> virtualization.
>
> By supplying the logical geometies directly we are able to support such
> "exotic" disks.
>
> We will use fw_cfg to do just that.
>
> v2:
>
> Fix missing parenthesis check in
> "hd-geo-test: Add tests for lchs override"
>
> v3:
>
> * Rename fw_cfg key to "bios-geometry".
> * Remove "extendible" interface.
> * Add cpu_to_le32 fix as Laszlo suggested or big endian hosts
> * Fix last qtest commit - automatic docker tester for some reason does not have qemu-img set
>
> v4:
>
> * Change fw_cfg interface from mixed textual/binary to textual only
>
> v5:
>
> * Fix line > 80 chars in tests/hd-geo-test.c
Reviewed-by: Gerd Hoffmann <kraxel@redhat.com>
cheers,
Gerd
^ permalink raw reply [flat|nested] 25+ messages in thread
* Re: [Qemu-devel] [QEMU] [PATCH v5 0/8] Add Qemu to SeaBIOS LCHS interface
2019-07-01 7:41 ` [Qemu-devel] [QEMU] [PATCH v5 0/8] Add Qemu to SeaBIOS LCHS interface Gerd Hoffmann
@ 2019-07-08 17:30 ` Sam Eiderman
2019-07-17 19:03 ` Sam Eiderman
0 siblings, 1 reply; 25+ messages in thread
From: Sam Eiderman @ 2019-07-08 17:30 UTC (permalink / raw)
To: Gerd Hoffmann, QEMU, qemu-block
Cc: kwolf, Arbel Moshe, seabios, Max Reitz, Kevin O'Connor,
Liran Alon, Karl Heubaum
Thanks Gerd,
Gentle ping on this.
Sam
> On 1 Jul 2019, at 10:41, Gerd Hoffmann <kraxel@redhat.com> wrote:
>
> On Wed, Jun 26, 2019 at 03:39:40PM +0300, Sam Eiderman wrote:
>> v1:
>>
>> Non-standard logical geometries break under QEMU.
>>
>> A virtual disk which contains an operating system which depends on
>> logical geometries (consistent values being reported from BIOS INT13
>> AH=08) will most likely break under QEMU/SeaBIOS if it has non-standard
>> logical geometries - for example 56 SPT (sectors per track).
>> No matter what QEMU will guess - SeaBIOS, for large enough disks - will
>> use LBA translation, which will report 63 SPT instead.
>>
>> In addition we can not enforce SeaBIOS to rely on phyiscal geometries at
>> all. A virtio-blk-pci virtual disk with 255 phyiscal heads can not
>> report more than 16 physical heads when moved to an IDE controller, the
>> ATA spec allows a maximum of 16 heads - this is an artifact of
>> virtualization.
>>
>> By supplying the logical geometies directly we are able to support such
>> "exotic" disks.
>>
>> We will use fw_cfg to do just that.
>>
>> v2:
>>
>> Fix missing parenthesis check in
>> "hd-geo-test: Add tests for lchs override"
>>
>> v3:
>>
>> * Rename fw_cfg key to "bios-geometry".
>> * Remove "extendible" interface.
>> * Add cpu_to_le32 fix as Laszlo suggested or big endian hosts
>> * Fix last qtest commit - automatic docker tester for some reason does not have qemu-img set
>>
>> v4:
>>
>> * Change fw_cfg interface from mixed textual/binary to textual only
>>
>> v5:
>>
>> * Fix line > 80 chars in tests/hd-geo-test.c
>
> Reviewed-by: Gerd Hoffmann <kraxel@redhat.com>
>
> cheers,
> Gerd
>
^ permalink raw reply [flat|nested] 25+ messages in thread
* Re: [Qemu-devel] [QEMU] [PATCH v5 0/8] Add Qemu to SeaBIOS LCHS interface
2019-07-08 17:30 ` Sam Eiderman
@ 2019-07-17 19:03 ` Sam Eiderman
2019-07-17 19:46 ` Kevin Wolf
0 siblings, 1 reply; 25+ messages in thread
From: Sam Eiderman @ 2019-07-17 19:03 UTC (permalink / raw)
To: Gerd Hoffmann, QEMU, qemu-block
Cc: kwolf, Arbel Moshe, seabios, Max Reitz, Kevin O'Connor,
Liran Alon, Karl Heubaum
Gentle ping.
Sam
> On 8 Jul 2019, at 20:30, Sam Eiderman <shmuel.eiderman@oracle.com> wrote:
>
> Thanks Gerd,
>
> Gentle ping on this.
>
> Sam
>
>> On 1 Jul 2019, at 10:41, Gerd Hoffmann <kraxel@redhat.com> wrote:
>>
>> On Wed, Jun 26, 2019 at 03:39:40PM +0300, Sam Eiderman wrote:
>>> v1:
>>>
>>> Non-standard logical geometries break under QEMU.
>>>
>>> A virtual disk which contains an operating system which depends on
>>> logical geometries (consistent values being reported from BIOS INT13
>>> AH=08) will most likely break under QEMU/SeaBIOS if it has non-standard
>>> logical geometries - for example 56 SPT (sectors per track).
>>> No matter what QEMU will guess - SeaBIOS, for large enough disks - will
>>> use LBA translation, which will report 63 SPT instead.
>>>
>>> In addition we can not enforce SeaBIOS to rely on phyiscal geometries at
>>> all. A virtio-blk-pci virtual disk with 255 phyiscal heads can not
>>> report more than 16 physical heads when moved to an IDE controller, the
>>> ATA spec allows a maximum of 16 heads - this is an artifact of
>>> virtualization.
>>>
>>> By supplying the logical geometies directly we are able to support such
>>> "exotic" disks.
>>>
>>> We will use fw_cfg to do just that.
>>>
>>> v2:
>>>
>>> Fix missing parenthesis check in
>>> "hd-geo-test: Add tests for lchs override"
>>>
>>> v3:
>>>
>>> * Rename fw_cfg key to "bios-geometry".
>>> * Remove "extendible" interface.
>>> * Add cpu_to_le32 fix as Laszlo suggested or big endian hosts
>>> * Fix last qtest commit - automatic docker tester for some reason does not have qemu-img set
>>>
>>> v4:
>>>
>>> * Change fw_cfg interface from mixed textual/binary to textual only
>>>
>>> v5:
>>>
>>> * Fix line > 80 chars in tests/hd-geo-test.c
>>
>> Reviewed-by: Gerd Hoffmann <kraxel@redhat.com>
>>
>> cheers,
>> Gerd
>>
>
^ permalink raw reply [flat|nested] 25+ messages in thread
* Re: [Qemu-devel] [QEMU] [PATCH v5 0/8] Add Qemu to SeaBIOS LCHS interface
2019-07-17 19:03 ` Sam Eiderman
@ 2019-07-17 19:46 ` Kevin Wolf
2019-07-19 10:10 ` Sam Eiderman
0 siblings, 1 reply; 25+ messages in thread
From: Kevin Wolf @ 2019-07-17 19:46 UTC (permalink / raw)
To: Sam Eiderman
Cc: qemu-block, Arbel Moshe, seabios, QEMU, Max Reitz,
Kevin O'Connor, Liran Alon, Gerd Hoffmann, Karl Heubaum
Am 17.07.2019 um 21:03 hat Sam Eiderman geschrieben:
> Gentle ping.
Through which tree is this supposed to go? I feel this is more firmware
interface related than block layer stuff.
Kevin
> > On 8 Jul 2019, at 20:30, Sam Eiderman <shmuel.eiderman@oracle.com> wrote:
> >
> > Thanks Gerd,
> >
> > Gentle ping on this.
> >
> > Sam
> >
> >> On 1 Jul 2019, at 10:41, Gerd Hoffmann <kraxel@redhat.com> wrote:
> >>
> >> On Wed, Jun 26, 2019 at 03:39:40PM +0300, Sam Eiderman wrote:
> >>> v1:
> >>>
> >>> Non-standard logical geometries break under QEMU.
> >>>
> >>> A virtual disk which contains an operating system which depends on
> >>> logical geometries (consistent values being reported from BIOS INT13
> >>> AH=08) will most likely break under QEMU/SeaBIOS if it has non-standard
> >>> logical geometries - for example 56 SPT (sectors per track).
> >>> No matter what QEMU will guess - SeaBIOS, for large enough disks - will
> >>> use LBA translation, which will report 63 SPT instead.
> >>>
> >>> In addition we can not enforce SeaBIOS to rely on phyiscal geometries at
> >>> all. A virtio-blk-pci virtual disk with 255 phyiscal heads can not
> >>> report more than 16 physical heads when moved to an IDE controller, the
> >>> ATA spec allows a maximum of 16 heads - this is an artifact of
> >>> virtualization.
> >>>
> >>> By supplying the logical geometies directly we are able to support such
> >>> "exotic" disks.
> >>>
> >>> We will use fw_cfg to do just that.
> >>>
> >>> v2:
> >>>
> >>> Fix missing parenthesis check in
> >>> "hd-geo-test: Add tests for lchs override"
> >>>
> >>> v3:
> >>>
> >>> * Rename fw_cfg key to "bios-geometry".
> >>> * Remove "extendible" interface.
> >>> * Add cpu_to_le32 fix as Laszlo suggested or big endian hosts
> >>> * Fix last qtest commit - automatic docker tester for some reason does not have qemu-img set
> >>>
> >>> v4:
> >>>
> >>> * Change fw_cfg interface from mixed textual/binary to textual only
> >>>
> >>> v5:
> >>>
> >>> * Fix line > 80 chars in tests/hd-geo-test.c
> >>
> >> Reviewed-by: Gerd Hoffmann <kraxel@redhat.com>
> >>
> >> cheers,
> >> Gerd
> >>
> >
>
^ permalink raw reply [flat|nested] 25+ messages in thread
* Re: [Qemu-devel] [QEMU] [PATCH v5 0/8] Add Qemu to SeaBIOS LCHS interface
2019-07-17 19:46 ` Kevin Wolf
@ 2019-07-19 10:10 ` Sam Eiderman
2019-07-25 0:47 ` [Qemu-devel] [Qemu-block] " John Snow
0 siblings, 1 reply; 25+ messages in thread
From: Sam Eiderman @ 2019-07-19 10:10 UTC (permalink / raw)
To: Kevin Wolf, Gerd Hoffmann, Laszlo Ersek, philmd
Cc: qemu-block, Arbel Moshe, seabios, QEMU, Max Reitz,
Kevin O'Connor, Liran Alon, Karl Heubaum
Well, this patch introduces 3 command line parameters (“lcyls”, “lheads”, “lsecs”)
to “scsi-hd” “ide-hd” and “virtio-pci-blk” so this somehow has something to do with
block.
This patch also adds fw_cfg interface to send these parameters to SeaBIOS.
"scripts/get_maintainer.pl -f hw/nvram/fw_cfg.c” gives
"Philippe Mathieu-Daudé" <philmd@redhat.com> (supporter:Firmware configur...)
Laszlo Ersek <lersek@redhat.com> (reviewer:Firmware configur...)
Gerd Hoffmann <kraxel@redhat.com> (reviewer:Firmware configur…)
And this was already Reviewed-by Gerd.
How should I proceed?
Sam
> On 17 Jul 2019, at 22:46, Kevin Wolf <kwolf@redhat.com> wrote:
>
> Am 17.07.2019 um 21:03 hat Sam Eiderman geschrieben:
>> Gentle ping.
>
> Through which tree is this supposed to go? I feel this is more firmware
> interface related than block layer stuff.
>
> Kevin
>
>>> On 8 Jul 2019, at 20:30, Sam Eiderman <shmuel.eiderman@oracle.com> wrote:
>>>
>>> Thanks Gerd,
>>>
>>> Gentle ping on this.
>>>
>>> Sam
>>>
>>>> On 1 Jul 2019, at 10:41, Gerd Hoffmann <kraxel@redhat.com> wrote:
>>>>
>>>> On Wed, Jun 26, 2019 at 03:39:40PM +0300, Sam Eiderman wrote:
>>>>> v1:
>>>>>
>>>>> Non-standard logical geometries break under QEMU.
>>>>>
>>>>> A virtual disk which contains an operating system which depends on
>>>>> logical geometries (consistent values being reported from BIOS INT13
>>>>> AH=08) will most likely break under QEMU/SeaBIOS if it has non-standard
>>>>> logical geometries - for example 56 SPT (sectors per track).
>>>>> No matter what QEMU will guess - SeaBIOS, for large enough disks - will
>>>>> use LBA translation, which will report 63 SPT instead.
>>>>>
>>>>> In addition we can not enforce SeaBIOS to rely on phyiscal geometries at
>>>>> all. A virtio-blk-pci virtual disk with 255 phyiscal heads can not
>>>>> report more than 16 physical heads when moved to an IDE controller, the
>>>>> ATA spec allows a maximum of 16 heads - this is an artifact of
>>>>> virtualization.
>>>>>
>>>>> By supplying the logical geometies directly we are able to support such
>>>>> "exotic" disks.
>>>>>
>>>>> We will use fw_cfg to do just that.
>>>>>
>>>>> v2:
>>>>>
>>>>> Fix missing parenthesis check in
>>>>> "hd-geo-test: Add tests for lchs override"
>>>>>
>>>>> v3:
>>>>>
>>>>> * Rename fw_cfg key to "bios-geometry".
>>>>> * Remove "extendible" interface.
>>>>> * Add cpu_to_le32 fix as Laszlo suggested or big endian hosts
>>>>> * Fix last qtest commit - automatic docker tester for some reason does not have qemu-img set
>>>>>
>>>>> v4:
>>>>>
>>>>> * Change fw_cfg interface from mixed textual/binary to textual only
>>>>>
>>>>> v5:
>>>>>
>>>>> * Fix line > 80 chars in tests/hd-geo-test.c
>>>>
>>>> Reviewed-by: Gerd Hoffmann <kraxel@redhat.com>
>>>>
>>>> cheers,
>>>> Gerd
>>>>
>>>
>>
^ permalink raw reply [flat|nested] 25+ messages in thread
* Re: [Qemu-devel] [Qemu-block] [QEMU] [PATCH v5 0/8] Add Qemu to SeaBIOS LCHS interface
2019-07-19 10:10 ` Sam Eiderman
@ 2019-07-25 0:47 ` John Snow
2019-07-25 0:50 ` John Snow
0 siblings, 1 reply; 25+ messages in thread
From: John Snow @ 2019-07-25 0:47 UTC (permalink / raw)
To: Sam Eiderman, Kevin Wolf, Gerd Hoffmann, Laszlo Ersek, philmd
Cc: qemu-block, Arbel Moshe, seabios, QEMU, Max Reitz,
Kevin O'Connor, Liran Alon
On 7/19/19 6:10 AM, Sam Eiderman wrote:
> Well, this patch introduces 3 command line parameters (“lcyls”, “lheads”, “lsecs”)
> to “scsi-hd” “ide-hd” and “virtio-pci-blk” so this somehow has something to do with
> block.
>
> This patch also adds fw_cfg interface to send these parameters to SeaBIOS.
>
> "scripts/get_maintainer.pl -f hw/nvram/fw_cfg.c” gives
>
> "Philippe Mathieu-Daudé" <philmd@redhat.com> (supporter:Firmware configur...)
> Laszlo Ersek <lersek@redhat.com> (reviewer:Firmware configur...)
> Gerd Hoffmann <kraxel@redhat.com> (reviewer:Firmware configur…)
>
> And this was already Reviewed-by Gerd.
>
> How should I proceed?
>
> Sam
>
I feel like it would be up to Gerd as the general SeaBIOS point of contact?
--js
^ permalink raw reply [flat|nested] 25+ messages in thread
* Re: [Qemu-devel] [Qemu-block] [QEMU] [PATCH v5 0/8] Add Qemu to SeaBIOS LCHS interface
2019-07-25 0:47 ` [Qemu-devel] [Qemu-block] " John Snow
@ 2019-07-25 0:50 ` John Snow
2019-07-25 19:42 ` Laszlo Ersek
2019-07-30 11:35 ` Gerd Hoffmann
0 siblings, 2 replies; 25+ messages in thread
From: John Snow @ 2019-07-25 0:50 UTC (permalink / raw)
To: Sam Eiderman, Kevin Wolf, Gerd Hoffmann, Laszlo Ersek, philmd
Cc: qemu-block, Arbel Moshe, seabios, QEMU, Max Reitz,
Kevin O'Connor, Liran Alon
On 7/24/19 8:47 PM, John Snow wrote:
>
>
> On 7/19/19 6:10 AM, Sam Eiderman wrote:
>> Well, this patch introduces 3 command line parameters (“lcyls”, “lheads”, “lsecs”)
>> to “scsi-hd” “ide-hd” and “virtio-pci-blk” so this somehow has something to do with
>> block.
>>
>> This patch also adds fw_cfg interface to send these parameters to SeaBIOS.
>>
>> "scripts/get_maintainer.pl -f hw/nvram/fw_cfg.c” gives
>>
>> "Philippe Mathieu-Daudé" <philmd@redhat.com> (supporter:Firmware configur...)
>> Laszlo Ersek <lersek@redhat.com> (reviewer:Firmware configur...)
>> Gerd Hoffmann <kraxel@redhat.com> (reviewer:Firmware configur…)
>>
>> And this was already Reviewed-by Gerd.
>>
>> How should I proceed?
>>
>> Sam
>>
>
> I feel like it would be up to Gerd as the general SeaBIOS point of contact?
>
...ah, who is offline for vacation.
We're in freeze right now anyway, so I would think that Gerd and/or
Kevin can work out who ought to stage this for a PR when the tree opens
again.
^ permalink raw reply [flat|nested] 25+ messages in thread
* Re: [Qemu-devel] [Qemu-block] [QEMU] [PATCH v5 0/8] Add Qemu to SeaBIOS LCHS interface
2019-07-25 0:50 ` John Snow
@ 2019-07-25 19:42 ` Laszlo Ersek
2019-07-30 11:35 ` Gerd Hoffmann
1 sibling, 0 replies; 25+ messages in thread
From: Laszlo Ersek @ 2019-07-25 19:42 UTC (permalink / raw)
To: John Snow, Sam Eiderman, Kevin Wolf, Gerd Hoffmann, philmd
Cc: qemu-block, Arbel Moshe, seabios, QEMU, Max Reitz,
Kevin O'Connor, Liran Alon
On 07/25/19 02:50, John Snow wrote:
>
>
> On 7/24/19 8:47 PM, John Snow wrote:
>>
>>
>> On 7/19/19 6:10 AM, Sam Eiderman wrote:
>>> Well, this patch introduces 3 command line parameters (“lcyls”, “lheads”, “lsecs”)
>>> to “scsi-hd” “ide-hd” and “virtio-pci-blk” so this somehow has something to do with
>>> block.
>>>
>>> This patch also adds fw_cfg interface to send these parameters to SeaBIOS.
>>>
>>> "scripts/get_maintainer.pl -f hw/nvram/fw_cfg.c” gives
>>>
>>> "Philippe Mathieu-Daudé" <philmd@redhat.com> (supporter:Firmware configur...)
>>> Laszlo Ersek <lersek@redhat.com> (reviewer:Firmware configur...)
>>> Gerd Hoffmann <kraxel@redhat.com> (reviewer:Firmware configur…)
>>>
>>> And this was already Reviewed-by Gerd.
>>>
>>> How should I proceed?
>>>
>>> Sam
>>>
>>
>> I feel like it would be up to Gerd as the general SeaBIOS point of contact?
>>
>
> ...ah, who is offline for vacation.
>
> We're in freeze right now anyway, so I would think that Gerd and/or
> Kevin can work out who ought to stage this for a PR when the tree opens
> again.
>
I think the sole patch in the series that modifies "hw/nvram/fw_cfg.c" is
[Qemu-devel] [QEMU] [PATCH v5 7/8] bootdevice: FW_CFG interface for LCHS values
http://mid.mail-archive.com/20190626123948.10199-8-shmuel.eiderman@oracle.com
and neither Phil nor myself seem to be CC'd on it (I've found the message in my list folder only).
Regarding fw_cfg, I only review Phil's fw_cfg patches (so that whenever he posts patches, he can count on my review); other than that, I generally skip fw_cfg patches. And, I totally don't have a tree for collecting such patches.
Now, while Phil does:
T: git https://github.com/philmd/qemu.git fw_cfg-next
I still don't think that tree would be the best for queueing this series, given the diffstat:
bootdevice.c | 148 +++++++++---
hw/block/virtio-blk.c | 6 +
hw/ide/qdev.c | 7 +-
hw/nvram/fw_cfg.c | 14 +-
hw/scsi/scsi-bus.c | 15 ++
hw/scsi/scsi-disk.c | 14 ++
include/hw/block/block.h | 22 +-
include/hw/scsi/scsi.h | 1 +
include/sysemu/sysemu.h | 4 +
tests/Makefile.include | 2 +-
tests/hd-geo-test.c | 582 +++++++++++++++++++++++++++++++++++++++++++++++
11 files changed, 774 insertions(+), 41 deletions(-)
Just my two cents.
Thanks
Laszlo
^ permalink raw reply [flat|nested] 25+ messages in thread
* Re: [Qemu-devel] [Qemu-block] [QEMU] [PATCH v5 0/8] Add Qemu to SeaBIOS LCHS interface
2019-07-25 0:50 ` John Snow
2019-07-25 19:42 ` Laszlo Ersek
@ 2019-07-30 11:35 ` Gerd Hoffmann
1 sibling, 0 replies; 25+ messages in thread
From: Gerd Hoffmann @ 2019-07-30 11:35 UTC (permalink / raw)
To: John Snow
Cc: Kevin Wolf, qemu-block, Arbel Moshe, philmd, seabios, QEMU,
Max Reitz, Kevin O'Connor, Sam Eiderman, Liran Alon,
Laszlo Ersek
Hi,
[ just back from summer vacation, wading through my backlog ... ]
> > I feel like it would be up to Gerd as the general SeaBIOS point of contact?
> >
>
> ...ah, who is offline for vacation.
>
> We're in freeze right now anyway, so I would think that Gerd and/or
> Kevin can work out who ought to stage this for a PR when the tree opens
> again.
As this touches alot of block code I've expected it to go via block
tree, therefore I've added my reviewed-by to indicate the fw_cfg /
seabios side of things is fine from my point of view. seabios patches
are reviewed and ready.
Merging via Phil's fw_cfg tree would make sense too, but Phil probably
wants an ack from the block layer guys in that case.
cheers,
Gerd
^ permalink raw reply [flat|nested] 25+ messages in thread
* Re: [Qemu-devel] [QEMU] [PATCH v5 3/8] bootdevice: Add interface to gather LCHS
2019-06-26 12:39 ` [Qemu-devel] [QEMU] [PATCH v5 3/8] bootdevice: Add interface to gather LCHS Sam Eiderman
@ 2019-08-13 18:51 ` Max Reitz
2019-08-22 15:13 ` Sam Eiderman via Qemu-devel
0 siblings, 1 reply; 25+ messages in thread
From: Max Reitz @ 2019-08-13 18:51 UTC (permalink / raw)
To: Sam Eiderman, kwolf, qemu-block, qemu-devel, seabios, kraxel, kevin
Cc: liran.alon, karl.heubaum, arbel.moshe
[-- Attachment #1.1: Type: text/plain, Size: 2548 bytes --]
On 26.06.19 14:39, Sam Eiderman wrote:
> Add an interface to provide direct logical CHS values for boot devices.
> We will use this interface in the next commits.
>
> Reviewed-by: Karl Heubaum <karl.heubaum@oracle.com>
> Reviewed-by: Arbel Moshe <arbel.moshe@oracle.com>
> Signed-off-by: Sam Eiderman <shmuel.eiderman@oracle.com>
> ---
> bootdevice.c | 55 +++++++++++++++++++++++++++++++++++++++++++++++++
> include/sysemu/sysemu.h | 3 +++
> 2 files changed, 58 insertions(+)
I’ve got a couple of “undelivered mail returned to sender” mails for Sam
recently, but anyway...
> diff --git a/bootdevice.c b/bootdevice.c
> index 1d225202f9..bc5e1c2de4 100644
> --- a/bootdevice.c
> +++ b/bootdevice.c
> @@ -343,3 +343,58 @@ void device_add_bootindex_property(Object *obj, int32_t *bootindex,
> /* initialize devices' bootindex property to -1 */
> object_property_set_int(obj, -1, name, NULL);
> }
> +
> +typedef struct FWLCHSEntry FWLCHSEntry;
> +
> +struct FWLCHSEntry {
> + QTAILQ_ENTRY(FWLCHSEntry) link;
> + DeviceState *dev;
> + char *suffix;
> + uint32_t lcyls;
> + uint32_t lheads;
> + uint32_t lsecs;
> +};
> +
> +static QTAILQ_HEAD(, FWLCHSEntry) fw_lchs =
> + QTAILQ_HEAD_INITIALIZER(fw_lchs);
> +
> +void add_boot_device_lchs(DeviceState *dev, const char *suffix,
> + uint32_t lcyls, uint32_t lheads, uint32_t lsecs)
> +{
> + FWLCHSEntry *node;
> +
> + if (!lcyls && !lheads && !lsecs) {
> + return;
> + }
> +
> + assert(dev != NULL || suffix != NULL);
It doesn’t look like any caller actually passes a NULL @dev, so why not
drop the @suffix part?
> + node = g_malloc0(sizeof(FWLCHSEntry));
> + node->suffix = g_strdup(suffix);
> + node->dev = dev;
> + node->lcyls = lcyls;
> + node->lheads = lheads;
> + node->lsecs = lsecs;
> +
> + QTAILQ_INSERT_TAIL(&fw_lchs, node, link);
> +}
> +
> +void del_boot_device_lchs(DeviceState *dev, const char *suffix)
> +{
> + FWLCHSEntry *i;
> +
> + if (dev == NULL) {
> + return;
> + }
> +
> + QTAILQ_FOREACH(i, &fw_lchs, link) {
> + if ((!suffix || !g_strcmp0(i->suffix, suffix)) &&
> + i->dev == dev) {
(Furthermore, it’d be impossible to remove an FWLCHSEntry with .dev ==
NULL.)
Max
> + QTAILQ_REMOVE(&fw_lchs, i, link);
> + g_free(i->suffix);
> + g_free(i);
> +
> + break;
> + }
> + }
> +}
[-- Attachment #2: OpenPGP digital signature --]
[-- Type: application/pgp-signature, Size: 488 bytes --]
^ permalink raw reply [flat|nested] 25+ messages in thread
* Re: [Qemu-devel] [QEMU] [PATCH v5 5/8] bootdevice: Gather LCHS from all relevant devices
2019-06-26 12:39 ` [Qemu-devel] [QEMU] [PATCH v5 5/8] bootdevice: Gather LCHS from all relevant devices Sam Eiderman
@ 2019-08-13 19:05 ` Max Reitz
2019-08-25 13:38 ` Sam Eiderman via Qemu-devel
0 siblings, 1 reply; 25+ messages in thread
From: Max Reitz @ 2019-08-13 19:05 UTC (permalink / raw)
To: Sam Eiderman, kwolf, qemu-block, qemu-devel, seabios, kraxel, kevin
Cc: liran.alon, karl.heubaum, arbel.moshe
[-- Attachment #1.1: Type: text/plain, Size: 3188 bytes --]
On 26.06.19 14:39, Sam Eiderman wrote:
> Relevant devices are:
> * ide-hd (and ide-cd, ide-drive)
> * scsi-hd (and scsi-cd, scsi-disk, scsi-block)
> * virtio-blk-pci
>
> We do not call del_boot_device_lchs() for ide-* since we don't need to -
> IDE block devices do not support unplugging.
>
> Reviewed-by: Karl Heubaum <karl.heubaum@oracle.com>
> Reviewed-by: Arbel Moshe <arbel.moshe@oracle.com>
> Signed-off-by: Sam Eiderman <shmuel.eiderman@oracle.com>
> ---
> hw/block/virtio-blk.c | 6 ++++++
> hw/ide/qdev.c | 5 +++++
> hw/scsi/scsi-disk.c | 14 ++++++++++++++
> 3 files changed, 25 insertions(+)
>
> diff --git a/hw/block/virtio-blk.c b/hw/block/virtio-blk.c
> index 06e57a4d39..787bbd768a 100644
> --- a/hw/block/virtio-blk.c
> +++ b/hw/block/virtio-blk.c
> @@ -1182,6 +1182,11 @@ static void virtio_blk_device_realize(DeviceState *dev, Error **errp)
> blk_set_guest_block_size(s->blk, s->conf.conf.logical_block_size);
>
> blk_iostatus_enable(s->blk);
> +
> + add_boot_device_lchs(dev, "/disk@0,0",
> + (&conf->conf)->lcyls,
> + (&conf->conf)->lheads,
> + (&conf->conf)->lsecs);
...why not simply “conf->conf.lcyls” and so on?
[...]
> diff --git a/hw/scsi/scsi-disk.c b/hw/scsi/scsi-disk.c
> index 7b89ac798b..3451aefdea 100644
> --- a/hw/scsi/scsi-disk.c
> +++ b/hw/scsi/scsi-disk.c
[...]
> @@ -2988,6 +2998,7 @@ static void scsi_hd_class_initfn(ObjectClass *klass, void *data)
> SCSIDeviceClass *sc = SCSI_DEVICE_CLASS(klass);
>
> sc->realize = scsi_hd_realize;
> + sc->unrealize = scsi_unrealize;
> sc->alloc_req = scsi_new_request;
> sc->unit_attention_reported = scsi_disk_unit_attention_reported;
> dc->desc = "virtual SCSI disk";
> @@ -3019,6 +3030,7 @@ static void scsi_cd_class_initfn(ObjectClass *klass, void *data)
> SCSIDeviceClass *sc = SCSI_DEVICE_CLASS(klass);
>
> sc->realize = scsi_cd_realize;
> + sc->unrealize = scsi_unrealize;
> sc->alloc_req = scsi_new_request;
> sc->unit_attention_reported = scsi_disk_unit_attention_reported;
> dc->desc = "virtual SCSI CD-ROM";
> @@ -3054,6 +3066,7 @@ static void scsi_block_class_initfn(ObjectClass *klass, void *data)
> SCSIDiskClass *sdc = SCSI_DISK_BASE_CLASS(klass);
>
> sc->realize = scsi_block_realize;
> + sc->unrealize = scsi_unrealize;
> sc->alloc_req = scsi_block_new_request;
> sc->parse_cdb = scsi_block_parse_cdb;
> sdc->dma_readv = scsi_block_dma_readv;
> @@ -3095,6 +3108,7 @@ static void scsi_disk_class_initfn(ObjectClass *klass, void *data)
> SCSIDeviceClass *sc = SCSI_DEVICE_CLASS(klass);
>
> sc->realize = scsi_disk_realize;
> + sc->unrealize = scsi_unrealize;
> sc->alloc_req = scsi_new_request;
> sc->unit_attention_reported = scsi_disk_unit_attention_reported;
> dc->fw_name = "disk";
Only scsi-hd has the lchs properties, though, so what’s the purpose of
defining the unrealize function for all other classes?
Max
[-- Attachment #2: OpenPGP digital signature --]
[-- Type: application/pgp-signature, Size: 488 bytes --]
^ permalink raw reply [flat|nested] 25+ messages in thread
* Re: [Qemu-devel] [QEMU] [PATCH v5 4/8] scsi: Propagate unrealize() callback to scsi-hd
2019-06-26 12:39 ` [Qemu-devel] [QEMU] [PATCH v5 4/8] scsi: Propagate unrealize() callback to scsi-hd Sam Eiderman
@ 2019-08-13 19:06 ` Max Reitz
2019-08-25 13:35 ` Sam Eiderman via Qemu-devel
0 siblings, 1 reply; 25+ messages in thread
From: Max Reitz @ 2019-08-13 19:06 UTC (permalink / raw)
To: Sam Eiderman, kwolf, qemu-block, qemu-devel, seabios, kraxel, kevin
Cc: liran.alon, karl.heubaum, arbel.moshe
[-- Attachment #1.1: Type: text/plain, Size: 1357 bytes --]
On 26.06.19 14:39, Sam Eiderman wrote:
> We will need to add LCHS removal logic to scsi-hd's unrealize() in the
> next commit.
>
> Reviewed-by: Karl Heubaum <karl.heubaum@oracle.com>
> Reviewed-by: Arbel Moshe <arbel.moshe@oracle.com>
> Signed-off-by: Sam Eiderman <shmuel.eiderman@oracle.com>
> ---
> hw/scsi/scsi-bus.c | 15 +++++++++++++++
> include/hw/scsi/scsi.h | 1 +
> 2 files changed, 16 insertions(+)
>
> diff --git a/hw/scsi/scsi-bus.c b/hw/scsi/scsi-bus.c
> index c480553083..f6fe497a1a 100644
> --- a/hw/scsi/scsi-bus.c
> +++ b/hw/scsi/scsi-bus.c
[...]
> @@ -213,11 +221,18 @@ static void scsi_qdev_realize(DeviceState *qdev, Error **errp)
> static void scsi_qdev_unrealize(DeviceState *qdev, Error **errp)
> {
> SCSIDevice *dev = SCSI_DEVICE(qdev);
> + Error *local_err = NULL;
>
> if (dev->vmsentry) {
> qemu_del_vm_change_state_handler(dev->vmsentry);
> }
>
> + scsi_device_unrealize(dev, &local_err);
> + if (local_err) {
> + error_propagate(errp, local_err);
> + return;
> + }
> +
> scsi_device_purge_requests(dev, SENSE_CODE(NO_SENSE));
(I see this code for the first time, but) I suppose I’d put the
scsi_device_unrealize() after scsi_device_purge_requests().
Max
> blockdev_mark_auto_del(dev->conf.blk);
> }
[-- Attachment #2: OpenPGP digital signature --]
[-- Type: application/pgp-signature, Size: 488 bytes --]
^ permalink raw reply [flat|nested] 25+ messages in thread
* Re: [Qemu-devel] [QEMU] [PATCH v5 0/8] Add Qemu to SeaBIOS LCHS interface
2019-06-26 12:39 [Qemu-devel] [QEMU] [PATCH v5 0/8] Add Qemu to SeaBIOS LCHS interface Sam Eiderman
` (8 preceding siblings ...)
2019-07-01 7:41 ` [Qemu-devel] [QEMU] [PATCH v5 0/8] Add Qemu to SeaBIOS LCHS interface Gerd Hoffmann
@ 2019-08-13 19:35 ` Max Reitz
9 siblings, 0 replies; 25+ messages in thread
From: Max Reitz @ 2019-08-13 19:35 UTC (permalink / raw)
To: Sam Eiderman, kwolf, qemu-block, qemu-devel, seabios, kraxel, kevin
Cc: liran.alon, karl.heubaum, arbel.moshe
[-- Attachment #1.1: Type: text/plain, Size: 1087 bytes --]
On 26.06.19 14:39, Sam Eiderman wrote:
> v1:
>
> Non-standard logical geometries break under QEMU.
>
> A virtual disk which contains an operating system which depends on
> logical geometries (consistent values being reported from BIOS INT13
> AH=08) will most likely break under QEMU/SeaBIOS if it has non-standard
> logical geometries - for example 56 SPT (sectors per track).
> No matter what QEMU will guess - SeaBIOS, for large enough disks - will
> use LBA translation, which will report 63 SPT instead.
>
> In addition we can not enforce SeaBIOS to rely on phyiscal geometries at
> all. A virtio-blk-pci virtual disk with 255 phyiscal heads can not
> report more than 16 physical heads when moved to an IDE controller, the
> ATA spec allows a maximum of 16 heads - this is an artifact of
> virtualization.
>
> By supplying the logical geometies directly we are able to support such
> "exotic" disks.
>
> We will use fw_cfg to do just that.
(From a block perspective,) I didn’t find anything too bad, so:
Acked-by: Max Reitz <mreitz@redhat.com>
[-- Attachment #2: OpenPGP digital signature --]
[-- Type: application/pgp-signature, Size: 488 bytes --]
^ permalink raw reply [flat|nested] 25+ messages in thread
* Re: [Qemu-devel] [QEMU] [PATCH v5 3/8] bootdevice: Add interface to gather LCHS
2019-08-13 18:51 ` Max Reitz
@ 2019-08-22 15:13 ` Sam Eiderman via Qemu-devel
0 siblings, 0 replies; 25+ messages in thread
From: Sam Eiderman via Qemu-devel @ 2019-08-22 15:13 UTC (permalink / raw)
To: Sam Eiderman, kwolf, qemu-block, qemu-devel, seabios, kraxel, kevin
Cc: liran.alon, karl.heubaum
> I’ve got a couple of “undelivered mail returned to sender” mails for Sam
> recently, but anyway...
- shmuel.eiderman@oracle.com
+ sameid@google.com
> It doesn’t look like any caller actually passes a NULL @dev, so why not
> drop the @suffix part?
Just copied it from the bootindex implementation.
I think the suffix part there was implemented specifically for fdc since
the same device can have two suffixes (A and B).
This is not relavant here, but I think we still need the suffix to
create the device name for seabios to find.
Sam
^ permalink raw reply [flat|nested] 25+ messages in thread
* Re: [Qemu-devel] [QEMU] [PATCH v5 4/8] scsi: Propagate unrealize() callback to scsi-hd
2019-08-13 19:06 ` Max Reitz
@ 2019-08-25 13:35 ` Sam Eiderman via Qemu-devel
0 siblings, 0 replies; 25+ messages in thread
From: Sam Eiderman via Qemu-devel @ 2019-08-25 13:35 UTC (permalink / raw)
To: Sam Eiderman, kwolf, qemu-block, qemu-devel, seabios, kraxel, kevin
Cc: liran.alon, karl.heubaum
> @@ -213,11 +221,18 @@ static void scsi_qdev_realize(DeviceState *qdev, Error **errp)
> static void scsi_qdev_unrealize(DeviceState *qdev, Error **errp)
> {
> SCSIDevice *dev = SCSI_DEVICE(qdev);
> + Error *local_err = NULL;
>
> if (dev->vmsentry) {
> qemu_del_vm_change_state_handler(dev->vmsentry);
> }
>
> + scsi_device_unrealize(dev, &local_err);
> + if (local_err) {
> + error_propagate(errp, local_err);
> + return;
> + }
> +
> scsi_device_purge_requests(dev, SENSE_CODE(NO_SENSE));
(I see this code for the first time, but) I suppose I’d put the
scsi_device_unrealize() after scsi_device_purge_requests().
Max
> blockdev_mark_auto_del(dev->conf.blk);
> }
- shmuel.eiderman@oracle.com
+ sameid@google.com
Sure, I'll resubmit
Sam
^ permalink raw reply [flat|nested] 25+ messages in thread
* Re: [Qemu-devel] [QEMU] [PATCH v5 5/8] bootdevice: Gather LCHS from all relevant devices
2019-08-13 19:05 ` Max Reitz
@ 2019-08-25 13:38 ` Sam Eiderman via Qemu-devel
0 siblings, 0 replies; 25+ messages in thread
From: Sam Eiderman via Qemu-devel @ 2019-08-25 13:38 UTC (permalink / raw)
To: Sam Eiderman, kwolf, qemu-block, qemu-devel, seabios, kraxel, kevin
Cc: liran.alon, karl.heubaum
> Only scsi-hd has the lchs properties, though, so what’s the purpose of
> defining the unrealize function for all other classes?
>
> Max
- shmuel.eiderman@oracle.com
+ sameid@google.com
The only purpose is to already have them mapped to the correct existing
function, in case it will be used later on.
I can resubmit without the unrealize for the other classes, WDYT?
Sam
^ permalink raw reply [flat|nested] 25+ messages in thread
end of thread, other threads:[~2019-08-25 13:40 UTC | newest]
Thread overview: 25+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2019-06-26 12:39 [Qemu-devel] [QEMU] [PATCH v5 0/8] Add Qemu to SeaBIOS LCHS interface Sam Eiderman
2019-06-26 12:39 ` [Qemu-devel] [QEMU] [PATCH v5 1/8] block: Refactor macros - fix tabbing Sam Eiderman
2019-06-26 12:39 ` [Qemu-devel] [QEMU] [PATCH v5 2/8] block: Support providing LCHS from user Sam Eiderman
2019-06-26 12:39 ` [Qemu-devel] [QEMU] [PATCH v5 3/8] bootdevice: Add interface to gather LCHS Sam Eiderman
2019-08-13 18:51 ` Max Reitz
2019-08-22 15:13 ` Sam Eiderman via Qemu-devel
2019-06-26 12:39 ` [Qemu-devel] [QEMU] [PATCH v5 4/8] scsi: Propagate unrealize() callback to scsi-hd Sam Eiderman
2019-08-13 19:06 ` Max Reitz
2019-08-25 13:35 ` Sam Eiderman via Qemu-devel
2019-06-26 12:39 ` [Qemu-devel] [QEMU] [PATCH v5 5/8] bootdevice: Gather LCHS from all relevant devices Sam Eiderman
2019-08-13 19:05 ` Max Reitz
2019-08-25 13:38 ` Sam Eiderman via Qemu-devel
2019-06-26 12:39 ` [Qemu-devel] [QEMU] [PATCH v5 6/8] bootdevice: Refactor get_boot_devices_list Sam Eiderman
2019-06-26 12:39 ` [Qemu-devel] [QEMU] [PATCH v5 7/8] bootdevice: FW_CFG interface for LCHS values Sam Eiderman
2019-06-26 12:39 ` [Qemu-devel] [QEMU] [PATCH v5 8/8] hd-geo-test: Add tests for lchs override Sam Eiderman
2019-07-01 7:41 ` [Qemu-devel] [QEMU] [PATCH v5 0/8] Add Qemu to SeaBIOS LCHS interface Gerd Hoffmann
2019-07-08 17:30 ` Sam Eiderman
2019-07-17 19:03 ` Sam Eiderman
2019-07-17 19:46 ` Kevin Wolf
2019-07-19 10:10 ` Sam Eiderman
2019-07-25 0:47 ` [Qemu-devel] [Qemu-block] " John Snow
2019-07-25 0:50 ` John Snow
2019-07-25 19:42 ` Laszlo Ersek
2019-07-30 11:35 ` Gerd Hoffmann
2019-08-13 19:35 ` [Qemu-devel] " Max Reitz
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).