* [PULL v2 0/8] Ide patches @ 2019-10-03 19:32 John Snow 2019-10-03 19:32 ` [PULL v2 1/8] block: Refactor macros - fix tabbing John Snow ` (9 more replies) 0 siblings, 10 replies; 15+ messages in thread From: John Snow @ 2019-10-03 19:32 UTC (permalink / raw) To: Peter Maydell, qemu-devel Cc: Fam Zheng, Kevin Wolf, Thomas Huth, qemu-block, Michael S. Tsirkin, Laurent Vivier, Philippe Mathieu-Daudé, Max Reitz, John Snow, Gonglei (Arei), Gerd Hoffmann, Stefan Hajnoczi, Paolo Bonzini, Laszlo Ersek The following changes since commit 7f21573c822805a8e6be379d9bcf3ad9effef3dc: Merge remote-tracking branch 'remotes/huth-gitlab/tags/pull-request-2019-10-01' into staging (2019-10-01 13:13:38 +0100) are available in the Git repository at: https://github.com/jnsnow/qemu.git tags/ide-pull-request for you to fetch changes up to f6d61c9509c56eea3cdd2d23b40d285601b1c1ca: hd-geo-test: Add tests for lchs override (2019-10-03 14:36:54 -0400) ---------------------------------------------------------------- Pull request V2 - Added signoff into the mirrored commits themselves (vs just the email) - Kudos to `stg-foreach stg edit --sign` ---------------------------------------------------------------- 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 include/hw/block/block.h | 22 +- include/hw/scsi/scsi.h | 1 + include/sysemu/sysemu.h | 4 + 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 | 16 ++ hw/scsi/scsi-disk.c | 12 + tests/hd-geo-test.c | 589 +++++++++++++++++++++++++++++++++++++++ tests/Makefile.include | 2 +- 11 files changed, 780 insertions(+), 41 deletions(-) -- 2.21.0 ^ permalink raw reply [flat|nested] 15+ messages in thread
* [PULL v2 1/8] block: Refactor macros - fix tabbing 2019-10-03 19:32 [PULL v2 0/8] Ide patches John Snow @ 2019-10-03 19:32 ` John Snow 2019-10-03 19:32 ` [PULL v2 2/8] block: Support providing LCHS from user John Snow ` (8 subsequent siblings) 9 siblings, 0 replies; 15+ messages in thread From: John Snow @ 2019-10-03 19:32 UTC (permalink / raw) To: Peter Maydell, qemu-devel Cc: Fam Zheng, Kevin Wolf, Thomas Huth, qemu-block, Michael S. Tsirkin, Laurent Vivier, Philippe Mathieu-Daudé, Arbel Moshe, Max Reitz, John Snow, Gonglei (Arei), Sam Eiderman, Gerd Hoffmann, Stefan Hajnoczi, Paolo Bonzini, Laszlo Ersek, Karl Heubaum From: Sam Eiderman <shmuel.eiderman@oracle.com> 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> Message-id: 20190925110639.100699-2-sameid@google.com Signed-off-by: John Snow <jsnow@redhat.com> --- include/hw/block/block.h | 16 ++++++++-------- hw/ide/qdev.c | 2 +- 2 files changed, 9 insertions(+), 9 deletions(-) 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) \ diff --git a/hw/ide/qdev.c b/hw/ide/qdev.c index 6fba6b62b8..6dd219944f 100644 --- a/hw/ide/qdev.c +++ b/hw/ide/qdev.c @@ -290,7 +290,7 @@ 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) -- 2.21.0 ^ permalink raw reply related [flat|nested] 15+ messages in thread
* [PULL v2 2/8] block: Support providing LCHS from user 2019-10-03 19:32 [PULL v2 0/8] Ide patches John Snow 2019-10-03 19:32 ` [PULL v2 1/8] block: Refactor macros - fix tabbing John Snow @ 2019-10-03 19:32 ` John Snow 2019-10-03 19:32 ` [PULL v2 3/8] bootdevice: Add interface to gather LCHS John Snow ` (7 subsequent siblings) 9 siblings, 0 replies; 15+ messages in thread From: John Snow @ 2019-10-03 19:32 UTC (permalink / raw) To: Peter Maydell, qemu-devel Cc: Fam Zheng, Kevin Wolf, Thomas Huth, qemu-block, Michael S. Tsirkin, Laurent Vivier, Philippe Mathieu-Daudé, Arbel Moshe, Max Reitz, John Snow, Gonglei (Arei), Sam Eiderman, Gerd Hoffmann, Stefan Hajnoczi, Paolo Bonzini, Laszlo Ersek, Karl Heubaum From: Sam Eiderman <shmuel.eiderman@oracle.com> 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> Message-id: 20190925110639.100699-3-sameid@google.com Signed-off-by: John Snow <jsnow@redhat.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, \ -- 2.21.0 ^ permalink raw reply related [flat|nested] 15+ messages in thread
* [PULL v2 3/8] bootdevice: Add interface to gather LCHS 2019-10-03 19:32 [PULL v2 0/8] Ide patches John Snow 2019-10-03 19:32 ` [PULL v2 1/8] block: Refactor macros - fix tabbing John Snow 2019-10-03 19:32 ` [PULL v2 2/8] block: Support providing LCHS from user John Snow @ 2019-10-03 19:32 ` John Snow 2019-10-03 19:32 ` [PULL v2 4/8] scsi: Propagate unrealize() callback to scsi-hd John Snow ` (6 subsequent siblings) 9 siblings, 0 replies; 15+ messages in thread From: John Snow @ 2019-10-03 19:32 UTC (permalink / raw) To: Peter Maydell, qemu-devel Cc: Fam Zheng, Kevin Wolf, Thomas Huth, qemu-block, Michael S. Tsirkin, Laurent Vivier, Philippe Mathieu-Daudé, Arbel Moshe, Max Reitz, John Snow, Gonglei (Arei), Sam Eiderman, Gerd Hoffmann, Stefan Hajnoczi, Paolo Bonzini, Laszlo Ersek, Karl Heubaum From: Sam Eiderman <shmuel.eiderman@oracle.com> 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> Message-id: 20190925110639.100699-4-sameid@google.com Signed-off-by: John Snow <jsnow@redhat.com> --- include/sysemu/sysemu.h | 3 +++ bootdevice.c | 55 +++++++++++++++++++++++++++++++++++++++++ 2 files changed, 58 insertions(+) diff --git a/include/sysemu/sysemu.h b/include/sysemu/sysemu.h index 44f18eb739..5bc5c79cbc 100644 --- a/include/sysemu/sysemu.h +++ b/include/sysemu/sysemu.h @@ -103,6 +103,9 @@ 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, 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; + } + } +} -- 2.21.0 ^ permalink raw reply related [flat|nested] 15+ messages in thread
* [PULL v2 4/8] scsi: Propagate unrealize() callback to scsi-hd 2019-10-03 19:32 [PULL v2 0/8] Ide patches John Snow ` (2 preceding siblings ...) 2019-10-03 19:32 ` [PULL v2 3/8] bootdevice: Add interface to gather LCHS John Snow @ 2019-10-03 19:32 ` John Snow 2019-10-03 19:32 ` [PULL v2 5/8] bootdevice: Gather LCHS from all relevant devices John Snow ` (5 subsequent siblings) 9 siblings, 0 replies; 15+ messages in thread From: John Snow @ 2019-10-03 19:32 UTC (permalink / raw) To: Peter Maydell, qemu-devel Cc: Fam Zheng, Kevin Wolf, Thomas Huth, qemu-block, Michael S. Tsirkin, Laurent Vivier, Philippe Mathieu-Daudé, Arbel Moshe, Max Reitz, John Snow, Gonglei (Arei), Sam Eiderman, Gerd Hoffmann, Stefan Hajnoczi, Paolo Bonzini, Sam Eiderman, Laszlo Ersek, Karl Heubaum From: Sam Eiderman <shmuel.eiderman@oracle.com> We will need to add LCHS removal logic to scsi-hd's unrealize() in the next commit. Signed-off-by: Sam Eiderman <sameid@google.com> 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> Message-id: 20190925110639.100699-5-sameid@google.com Signed-off-by: John Snow <jsnow@redhat.com> --- include/hw/scsi/scsi.h | 1 + hw/scsi/scsi-bus.c | 16 ++++++++++++++++ 2 files changed, 17 insertions(+) diff --git a/include/hw/scsi/scsi.h b/include/hw/scsi/scsi.h index d77a92361b..332ef602f4 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, diff --git a/hw/scsi/scsi-bus.c b/hw/scsi/scsi-bus.c index bccb7cc4c6..359d50d6d0 100644 --- a/hw/scsi/scsi-bus.c +++ b/hw/scsi/scsi-bus.c @@ -59,6 +59,14 @@ 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) { @@ -217,12 +225,20 @@ 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_purge_requests(dev, SENSE_CODE(NO_SENSE)); + + scsi_device_unrealize(dev, &local_err); + if (local_err) { + error_propagate(errp, local_err); + return; + } + blockdev_mark_auto_del(dev->conf.blk); } -- 2.21.0 ^ permalink raw reply related [flat|nested] 15+ messages in thread
* [PULL v2 5/8] bootdevice: Gather LCHS from all relevant devices 2019-10-03 19:32 [PULL v2 0/8] Ide patches John Snow ` (3 preceding siblings ...) 2019-10-03 19:32 ` [PULL v2 4/8] scsi: Propagate unrealize() callback to scsi-hd John Snow @ 2019-10-03 19:32 ` John Snow 2019-10-03 19:32 ` [PULL v2 6/8] bootdevice: Refactor get_boot_devices_list John Snow ` (4 subsequent siblings) 9 siblings, 0 replies; 15+ messages in thread From: John Snow @ 2019-10-03 19:32 UTC (permalink / raw) To: Peter Maydell, qemu-devel Cc: Fam Zheng, Kevin Wolf, Thomas Huth, qemu-block, Michael S. Tsirkin, Laurent Vivier, Philippe Mathieu-Daudé, Arbel Moshe, Max Reitz, John Snow, Gonglei (Arei), Sam Eiderman, Gerd Hoffmann, Stefan Hajnoczi, Paolo Bonzini, Sam Eiderman, Laszlo Ersek, Karl Heubaum From: Sam Eiderman <shmuel.eiderman@oracle.com> 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. Signed-off-by: Sam Eiderman <sameid@google.com> 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> Message-id: 20190925110639.100699-6-sameid@google.com Signed-off-by: John Snow <jsnow@redhat.com> --- hw/block/virtio-blk.c | 6 ++++++ hw/ide/qdev.c | 5 +++++ hw/scsi/scsi-disk.c | 12 ++++++++++++ 3 files changed, 23 insertions(+) diff --git a/hw/block/virtio-blk.c b/hw/block/virtio-blk.c index 18851601cb..6d8ff34a16 100644 --- a/hw/block/virtio-blk.c +++ b/hw/block/virtio-blk.c @@ -1186,6 +1186,11 @@ 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) @@ -1193,6 +1198,7 @@ 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 6dd219944f..2ffd387a73 100644 --- a/hw/ide/qdev.c +++ b/hw/ide/qdev.c @@ -220,6 +220,11 @@ 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 915641a0f1..d19896fe4d 100644 --- a/hw/scsi/scsi-disk.c +++ b/hw/scsi/scsi-disk.c @@ -35,6 +35,7 @@ #include "hw/block/block.h" #include "hw/qdev-properties.h" #include "sysemu/dma.h" +#include "sysemu/sysemu.h" #include "qemu/cutils.h" #include "trace.h" @@ -2402,6 +2403,16 @@ 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) @@ -3006,6 +3017,7 @@ 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"; -- 2.21.0 ^ permalink raw reply related [flat|nested] 15+ messages in thread
* [PULL v2 6/8] bootdevice: Refactor get_boot_devices_list 2019-10-03 19:32 [PULL v2 0/8] Ide patches John Snow ` (4 preceding siblings ...) 2019-10-03 19:32 ` [PULL v2 5/8] bootdevice: Gather LCHS from all relevant devices John Snow @ 2019-10-03 19:32 ` John Snow 2019-10-03 19:32 ` [PULL v2 7/8] bootdevice: FW_CFG interface for LCHS values John Snow ` (3 subsequent siblings) 9 siblings, 0 replies; 15+ messages in thread From: John Snow @ 2019-10-03 19:32 UTC (permalink / raw) To: Peter Maydell, qemu-devel Cc: Fam Zheng, Kevin Wolf, Thomas Huth, qemu-block, Michael S. Tsirkin, Laurent Vivier, Philippe Mathieu-Daudé, Arbel Moshe, Max Reitz, John Snow, Gonglei (Arei), Sam Eiderman, Gerd Hoffmann, Stefan Hajnoczi, Paolo Bonzini, Laszlo Ersek, Karl Heubaum From: Sam Eiderman <shmuel.eiderman@oracle.com> 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> Message-id: 20190925110639.100699-7-sameid@google.com Signed-off-by: John Snow <jsnow@redhat.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'; -- 2.21.0 ^ permalink raw reply related [flat|nested] 15+ messages in thread
* [PULL v2 7/8] bootdevice: FW_CFG interface for LCHS values 2019-10-03 19:32 [PULL v2 0/8] Ide patches John Snow ` (5 preceding siblings ...) 2019-10-03 19:32 ` [PULL v2 6/8] bootdevice: Refactor get_boot_devices_list John Snow @ 2019-10-03 19:32 ` John Snow 2019-10-03 19:32 ` [PULL v2 8/8] hd-geo-test: Add tests for lchs override John Snow ` (2 subsequent siblings) 9 siblings, 0 replies; 15+ messages in thread From: John Snow @ 2019-10-03 19:32 UTC (permalink / raw) To: Peter Maydell, qemu-devel Cc: Fam Zheng, Kevin Wolf, Thomas Huth, qemu-block, Michael S. Tsirkin, Laurent Vivier, Philippe Mathieu-Daudé, Arbel Moshe, Max Reitz, John Snow, Gonglei (Arei), Sam Eiderman, Gerd Hoffmann, Stefan Hajnoczi, Paolo Bonzini, Laszlo Ersek, Karl Heubaum From: Sam Eiderman <shmuel.eiderman@oracle.com> 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> Message-id: 20190925110639.100699-8-sameid@google.com Signed-off-by: John Snow <jsnow@redhat.com> --- include/sysemu/sysemu.h | 1 + bootdevice.c | 32 ++++++++++++++++++++++++++++++++ hw/nvram/fw_cfg.c | 14 +++++++++++--- 3 files changed, 44 insertions(+), 3 deletions(-) diff --git a/include/sysemu/sysemu.h b/include/sysemu/sysemu.h index 5bc5c79cbc..80c57fdc4e 100644 --- a/include/sysemu/sysemu.h +++ b/include/sysemu/sysemu.h @@ -106,6 +106,7 @@ 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, 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 7dc3ac378e..18aff658c0 100644 --- a/hw/nvram/fw_cfg.c +++ b/hw/nvram/fw_cfg.c @@ -920,13 +920,21 @@ 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) -- 2.21.0 ^ permalink raw reply related [flat|nested] 15+ messages in thread
* [PULL v2 8/8] hd-geo-test: Add tests for lchs override 2019-10-03 19:32 [PULL v2 0/8] Ide patches John Snow ` (6 preceding siblings ...) 2019-10-03 19:32 ` [PULL v2 7/8] bootdevice: FW_CFG interface for LCHS values John Snow @ 2019-10-03 19:32 ` John Snow 2019-10-03 20:48 ` [PULL v2 0/8] Ide patches no-reply 2019-10-07 12:33 ` Peter Maydell 9 siblings, 0 replies; 15+ messages in thread From: John Snow @ 2019-10-03 19:32 UTC (permalink / raw) To: Peter Maydell, qemu-devel Cc: Fam Zheng, Kevin Wolf, Thomas Huth, qemu-block, Michael S. Tsirkin, Laurent Vivier, Philippe Mathieu-Daudé, Arbel Moshe, Max Reitz, John Snow, Gonglei (Arei), Sam Eiderman, Gerd Hoffmann, Stefan Hajnoczi, Paolo Bonzini, Laszlo Ersek, Karl Heubaum From: Sam Eiderman <shmuel.eiderman@oracle.com> 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> Message-id: 20190925110639.100699-9-sameid@google.com Signed-off-by: John Snow <jsnow@redhat.com> --- tests/hd-geo-test.c | 589 +++++++++++++++++++++++++++++++++++++++++ tests/Makefile.include | 2 +- 2 files changed, 590 insertions(+), 1 deletion(-) diff --git a/tests/hd-geo-test.c b/tests/hd-geo-test.c index 62eb624726..458de99c31 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 +393,575 @@ 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[]) +{ + QTestState *qts; + char *joined_args; + QFWCFG *fw_cfg; + int i; + + joined_args = g_strjoinv(" ", args->argv); + + qts = qtest_init(joined_args); + fw_cfg = pc_fw_cfg_init(qts); + + read_bootdevices(fw_cfg, expected); + + g_free(joined_args); + qtest_quit(qts); + + 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) +{ + QTestState *qts; + 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); + + qts = qtest_init(joined_args); + fw_cfg = pc_fw_cfg_init(qts); + + read_bootdevices(fw_cfg, expected); + + /* unplug device an restart */ + response = qtest_qmp(qts, + "{ 'execute': 'device_del'," + " 'arguments': {'id': 'scsi-disk0' }}"); + g_assert(response); + g_assert(!qdict_haskey(response, "error")); + qobject_unref(response); + response = qtest_qmp(qts, + "{ 'execute': 'system_reset', 'arguments': { }}"); + g_assert(response); + g_assert(!qdict_haskey(response, "error")); + qobject_unref(response); + + qtest_qmp_eventwait(qts, "RESET"); + + read_bootdevices(fw_cfg, expected2); + + g_free(joined_args); + qtest_quit(qts); + + 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) +{ + QTestState *qts; + 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); + + qts = qtest_init(joined_args); + fw_cfg = pc_fw_cfg_init(qts); + + read_bootdevices(fw_cfg, expected); + + /* unplug device an restart */ + response = qtest_qmp(qts, + "{ 'execute': 'device_del'," + " 'arguments': {'id': 'virtio-disk0' }}"); + g_assert(response); + g_assert(!qdict_haskey(response, "error")); + qobject_unref(response); + response = qtest_qmp(qts, + "{ 'execute': 'system_reset', 'arguments': { }}"); + g_assert(response); + g_assert(!qdict_haskey(response, "error")); + qobject_unref(response); + + qtest_qmp_eventwait(qts, "RESET"); + + read_bootdevices(fw_cfg, expected2); + + g_free(joined_args); + qtest_quit(qts); + + 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 +987,21 @@ 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(); diff --git a/tests/Makefile.include b/tests/Makefile.include index 3543451ed3..6941ae7c77 100644 --- a/tests/Makefile.include +++ b/tests/Makefile.include @@ -780,7 +780,7 @@ 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 \ -- 2.21.0 ^ permalink raw reply related [flat|nested] 15+ messages in thread
* Re: [PULL v2 0/8] Ide patches 2019-10-03 19:32 [PULL v2 0/8] Ide patches John Snow ` (7 preceding siblings ...) 2019-10-03 19:32 ` [PULL v2 8/8] hd-geo-test: Add tests for lchs override John Snow @ 2019-10-03 20:48 ` no-reply 2019-10-07 12:33 ` Peter Maydell 9 siblings, 0 replies; 15+ messages in thread From: no-reply @ 2019-10-03 20:48 UTC (permalink / raw) To: jsnow Cc: fam, peter.maydell, thuth, lersek, qemu-block, mst, lvivier, jsnow, qemu-devel, mreitz, arei.gonglei, kraxel, stefanha, pbonzini, kwolf, philmd Patchew URL: https://patchew.org/QEMU/20191003193245.8993-1-jsnow@redhat.com/ Hi, This series seems to have some coding style problems. See output below for more information: Type: series Message-id: 20191003193245.8993-1-jsnow@redhat.com Subject: [PULL v2 0/8] Ide patches === TEST SCRIPT BEGIN === #!/bin/bash git rev-parse base > /dev/null || exit 0 git config --local diff.renamelimit 0 git config --local diff.renames True git config --local diff.algorithm histogram ./scripts/checkpatch.pl --mailback base.. === TEST SCRIPT END === Updating 3c8cf5a9c21ff8782164d1def7f44bd888713384 Switched to a new branch 'test' e107ed3 hd-geo-test: Add tests for lchs override cd1188f bootdevice: FW_CFG interface for LCHS values 62792ad bootdevice: Refactor get_boot_devices_list 00d2bab bootdevice: Gather LCHS from all relevant devices d85b0dc scsi: Propagate unrealize() callback to scsi-hd 02cd6f9 bootdevice: Add interface to gather LCHS b06aff8 block: Support providing LCHS from user 335e38a block: Refactor macros - fix tabbing === OUTPUT BEGIN === 1/8 Checking commit 335e38a12a6e (block: Refactor macros - fix tabbing) ERROR: Macros with complex values should be enclosed in parenthesis #57: FILE: include/hw/block/block.h:65: +#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) total: 1 errors, 0 warnings, 37 lines checked Patch 1/8 has style problems, please review. If any of these errors are false positives report them to the maintainer, see CHECKPATCH in MAINTAINERS. 2/8 Checking commit b06aff8ec8cb (block: Support providing LCHS from user) 3/8 Checking commit 02cd6f97ec31 (bootdevice: Add interface to gather LCHS) 4/8 Checking commit d85b0dccde73 (scsi: Propagate unrealize() callback to scsi-hd) 5/8 Checking commit 00d2bab4fc17 (bootdevice: Gather LCHS from all relevant devices) 6/8 Checking commit 62792ad95240 (bootdevice: Refactor get_boot_devices_list) 7/8 Checking commit cd1188f9546d (bootdevice: FW_CFG interface for LCHS values) 8/8 Checking commit e107ed371074 (hd-geo-test: Add tests for lchs override) WARNING: Block comments use a leading /* on a separate line #650: FILE: tests/hd-geo-test.c:1003: + "skipping hd-geo/override/* tests"); total: 0 errors, 1 warnings, 616 lines checked Patch 8/8 has style problems, please review. If any of these errors are false positives report them to the maintainer, see CHECKPATCH in MAINTAINERS. === OUTPUT END === Test command exited with code: 1 The full log is available at http://patchew.org/logs/20191003193245.8993-1-jsnow@redhat.com/testing.checkpatch/?type=message. --- Email generated automatically by Patchew [https://patchew.org/]. Please send your feedback to patchew-devel@redhat.com ^ permalink raw reply [flat|nested] 15+ messages in thread
* Re: [PULL v2 0/8] Ide patches 2019-10-03 19:32 [PULL v2 0/8] Ide patches John Snow ` (8 preceding siblings ...) 2019-10-03 20:48 ` [PULL v2 0/8] Ide patches no-reply @ 2019-10-07 12:33 ` Peter Maydell 2019-10-07 17:35 ` John Snow 9 siblings, 1 reply; 15+ messages in thread From: Peter Maydell @ 2019-10-07 12:33 UTC (permalink / raw) To: John Snow Cc: Fam Zheng, Kevin Wolf, Thomas Huth, Qemu-block, Michael S. Tsirkin, Laurent Vivier, Philippe Mathieu-Daudé, QEMU Developers, Max Reitz, Gonglei (Arei), Gerd Hoffmann, Stefan Hajnoczi, Paolo Bonzini, Laszlo Ersek On Thu, 3 Oct 2019 at 20:33, John Snow <jsnow@redhat.com> wrote: > > The following changes since commit 7f21573c822805a8e6be379d9bcf3ad9effef3dc: > > Merge remote-tracking branch 'remotes/huth-gitlab/tags/pull-request-2019-10-01' into staging (2019-10-01 13:13:38 +0100) > > are available in the Git repository at: > > https://github.com/jnsnow/qemu.git tags/ide-pull-request > > for you to fetch changes up to f6d61c9509c56eea3cdd2d23b40d285601b1c1ca: > > hd-geo-test: Add tests for lchs override (2019-10-03 14:36:54 -0400) > > ---------------------------------------------------------------- > Pull request V2 > > - Added signoff into the mirrored commits themselves (vs just the email) > - Kudos to `stg-foreach stg edit --sign` > > ---------------------------------------------------------------- Hi; the new tests in hd-geo-test seem to hang on big-endian hosts (both s390x and ppc64 hung here): linux1@lxub05:~/qemu/build/all$ QTEST_QEMU_IMG=./qemu-img QTEST_QEMU_BINARY=x86_64-softmmu/qemu-system-x86_64 ./tests/hd-geo-test /x86_64/hd-geo/ide/none: OK /x86_64/hd-geo/ide/drive/cd_0: OK /x86_64/hd-geo/ide/drive/mbr/blank: OK /x86_64/hd-geo/ide/drive/mbr/lba: OK /x86_64/hd-geo/ide/drive/mbr/chs: OK /x86_64/hd-geo/ide/device/mbr/blank: OK /x86_64/hd-geo/ide/device/mbr/lba: OK /x86_64/hd-geo/ide/device/mbr/chs: OK /x86_64/hd-geo/ide/device/user/chs: OK /x86_64/hd-geo/ide/device/user/chst: OK /x86_64/hd-geo/override/ide: thanks -- PMM ^ permalink raw reply [flat|nested] 15+ messages in thread
* Re: [PULL v2 0/8] Ide patches 2019-10-07 12:33 ` Peter Maydell @ 2019-10-07 17:35 ` John Snow 2019-10-07 17:55 ` Philippe Mathieu-Daudé 0 siblings, 1 reply; 15+ messages in thread From: John Snow @ 2019-10-07 17:35 UTC (permalink / raw) To: Sam Eiderman Cc: Fam Zheng, Peter Maydell, Thomas Huth, Qemu-block, Michael S. Tsirkin, Laurent Vivier, Philippe Mathieu-Daudé, QEMU Developers, Max Reitz, Gonglei (Arei), Gerd Hoffmann, Stefan Hajnoczi, Paolo Bonzini, Kevin Wolf, Laszlo Ersek On 10/7/19 8:33 AM, Peter Maydell wrote: > On Thu, 3 Oct 2019 at 20:33, John Snow <jsnow@redhat.com> wrote: >> >> The following changes since commit 7f21573c822805a8e6be379d9bcf3ad9effef3dc: >> >> Merge remote-tracking branch 'remotes/huth-gitlab/tags/pull-request-2019-10-01' into staging (2019-10-01 13:13:38 +0100) >> >> are available in the Git repository at: >> >> https://github.com/jnsnow/qemu.git tags/ide-pull-request >> >> for you to fetch changes up to f6d61c9509c56eea3cdd2d23b40d285601b1c1ca: >> >> hd-geo-test: Add tests for lchs override (2019-10-03 14:36:54 -0400) >> >> ---------------------------------------------------------------- >> Pull request V2 >> >> - Added signoff into the mirrored commits themselves (vs just the email) >> - Kudos to `stg-foreach stg edit --sign` >> >> ---------------------------------------------------------------- > > Hi; the new tests in hd-geo-test seem to hang on > big-endian hosts (both s390x and ppc64 hung here): > > linux1@lxub05:~/qemu/build/all$ QTEST_QEMU_IMG=./qemu-img > QTEST_QEMU_BINARY=x86_64-softmmu/qemu-system-x86_64 > ./tests/hd-geo-test > /x86_64/hd-geo/ide/none: OK > /x86_64/hd-geo/ide/drive/cd_0: OK > /x86_64/hd-geo/ide/drive/mbr/blank: OK > /x86_64/hd-geo/ide/drive/mbr/lba: OK > /x86_64/hd-geo/ide/drive/mbr/chs: OK > /x86_64/hd-geo/ide/device/mbr/blank: OK > /x86_64/hd-geo/ide/device/mbr/lba: OK > /x86_64/hd-geo/ide/device/mbr/chs: OK > /x86_64/hd-geo/ide/device/user/chs: OK > /x86_64/hd-geo/ide/device/user/chst: OK > /x86_64/hd-geo/override/ide: > :( > > thanks > -- PMM > Sam, can you investigate this? --js ^ permalink raw reply [flat|nested] 15+ messages in thread
* Re: [PULL v2 0/8] Ide patches 2019-10-07 17:35 ` John Snow @ 2019-10-07 17:55 ` Philippe Mathieu-Daudé 2019-10-08 21:58 ` Laszlo Ersek 0 siblings, 1 reply; 15+ messages in thread From: Philippe Mathieu-Daudé @ 2019-10-07 17:55 UTC (permalink / raw) To: John Snow, Sam Eiderman Cc: Fam Zheng, Peter Maydell, Thomas Huth, Qemu-block, Michael S. Tsirkin, Laurent Vivier, QEMU Developers, Max Reitz, Gonglei (Arei), Gerd Hoffmann, Stefan Hajnoczi, Paolo Bonzini, Kevin Wolf, Laszlo Ersek On 10/7/19 7:35 PM, John Snow wrote: > On 10/7/19 8:33 AM, Peter Maydell wrote: >> On Thu, 3 Oct 2019 at 20:33, John Snow <jsnow@redhat.com> wrote: >>> >>> The following changes since commit 7f21573c822805a8e6be379d9bcf3ad9effef3dc: >>> >>> Merge remote-tracking branch 'remotes/huth-gitlab/tags/pull-request-2019-10-01' into staging (2019-10-01 13:13:38 +0100) >>> >>> are available in the Git repository at: >>> >>> https://github.com/jnsnow/qemu.git tags/ide-pull-request >>> >>> for you to fetch changes up to f6d61c9509c56eea3cdd2d23b40d285601b1c1ca: >>> >>> hd-geo-test: Add tests for lchs override (2019-10-03 14:36:54 -0400) >>> >>> ---------------------------------------------------------------- >>> Pull request V2 >>> >>> - Added signoff into the mirrored commits themselves (vs just the email) >>> - Kudos to `stg-foreach stg edit --sign` >>> >>> ---------------------------------------------------------------- >> >> Hi; the new tests in hd-geo-test seem to hang on >> big-endian hosts (both s390x and ppc64 hung here): >> >> linux1@lxub05:~/qemu/build/all$ QTEST_QEMU_IMG=./qemu-img >> QTEST_QEMU_BINARY=x86_64-softmmu/qemu-system-x86_64 >> ./tests/hd-geo-test >> /x86_64/hd-geo/ide/none: OK >> /x86_64/hd-geo/ide/drive/cd_0: OK >> /x86_64/hd-geo/ide/drive/mbr/blank: OK >> /x86_64/hd-geo/ide/drive/mbr/lba: OK >> /x86_64/hd-geo/ide/drive/mbr/chs: OK >> /x86_64/hd-geo/ide/device/mbr/blank: OK >> /x86_64/hd-geo/ide/device/mbr/lba: OK >> /x86_64/hd-geo/ide/device/mbr/chs: OK >> /x86_64/hd-geo/ide/device/user/chs: OK >> /x86_64/hd-geo/ide/device/user/chst: OK >> /x86_64/hd-geo/override/ide: >> > > :( > >> >> thanks >> -- PMM >> > > Sam, can you investigate this? Not seeing my T-b tags makes me grumble because I don't remember which I reviewed and need to go check on the list. If the error is a endianess bug related to fw_cfg, you can add the "-trace fw_cfg*" in hd-geo-test::create_args() and rerun the tests on a BE system, the bug should appear straightly on stdout. Are FWLCHSEntry fields little-endian? Shouldn't get_boot_devices_lchs_list() use some le32_to_cpu() call for the LCHS values? ^ permalink raw reply [flat|nested] 15+ messages in thread
* Re: [PULL v2 0/8] Ide patches 2019-10-07 17:55 ` Philippe Mathieu-Daudé @ 2019-10-08 21:58 ` Laszlo Ersek 2019-10-08 22:55 ` Laszlo Ersek 0 siblings, 1 reply; 15+ messages in thread From: Laszlo Ersek @ 2019-10-08 21:58 UTC (permalink / raw) To: Philippe Mathieu-Daudé, John Snow, Sam Eiderman Cc: Fam Zheng, Peter Maydell, Thomas Huth, Qemu-block, Michael S. Tsirkin, Laurent Vivier, QEMU Developers, Max Reitz, Gonglei (Arei), Gerd Hoffmann, Stefan Hajnoczi, Paolo Bonzini, Kevin Wolf On 10/07/19 19:55, Philippe Mathieu-Daudé wrote: > On 10/7/19 7:35 PM, John Snow wrote: >> On 10/7/19 8:33 AM, Peter Maydell wrote: >>> On Thu, 3 Oct 2019 at 20:33, John Snow <jsnow@redhat.com> wrote: >>>> >>>> The following changes since commit >>>> 7f21573c822805a8e6be379d9bcf3ad9effef3dc: >>>> >>>> Merge remote-tracking branch >>>> 'remotes/huth-gitlab/tags/pull-request-2019-10-01' into staging >>>> (2019-10-01 13:13:38 +0100) >>>> >>>> are available in the Git repository at: >>>> >>>> https://github.com/jnsnow/qemu.git tags/ide-pull-request >>>> >>>> for you to fetch changes up to >>>> f6d61c9509c56eea3cdd2d23b40d285601b1c1ca: >>>> >>>> hd-geo-test: Add tests for lchs override (2019-10-03 14:36:54 -0400) >>>> >>>> ---------------------------------------------------------------- >>>> Pull request V2 >>>> >>>> - Added signoff into the mirrored commits themselves (vs just the >>>> email) >>>> - Kudos to `stg-foreach stg edit --sign` >>>> >>>> ---------------------------------------------------------------- >>> >>> Hi; the new tests in hd-geo-test seem to hang on >>> big-endian hosts (both s390x and ppc64 hung here): >>> >>> linux1@lxub05:~/qemu/build/all$ QTEST_QEMU_IMG=./qemu-img >>> QTEST_QEMU_BINARY=x86_64-softmmu/qemu-system-x86_64 >>> ./tests/hd-geo-test >>> /x86_64/hd-geo/ide/none: OK >>> /x86_64/hd-geo/ide/drive/cd_0: OK >>> /x86_64/hd-geo/ide/drive/mbr/blank: OK >>> /x86_64/hd-geo/ide/drive/mbr/lba: OK >>> /x86_64/hd-geo/ide/drive/mbr/chs: OK >>> /x86_64/hd-geo/ide/device/mbr/blank: OK >>> /x86_64/hd-geo/ide/device/mbr/lba: OK >>> /x86_64/hd-geo/ide/device/mbr/chs: OK >>> /x86_64/hd-geo/ide/device/user/chs: OK >>> /x86_64/hd-geo/ide/device/user/chst: OK >>> /x86_64/hd-geo/override/ide: >>> >> >> :( >> >>> >>> thanks >>> -- PMM >>> >> >> Sam, can you investigate this? > > Not seeing my T-b tags makes me grumble because I don't remember which I > reviewed and need to go check on the list. > > If the error is a endianess bug related to fw_cfg, you can add the > "-trace fw_cfg*" in hd-geo-test::create_args() and rerun the tests on a > BE system, the bug should appear straightly on stdout. > > Are FWLCHSEntry fields little-endian? Shouldn't > get_boot_devices_lchs_list() use some le32_to_cpu() call for the LCHS > values? > *One* problem is most likely in the find_fw_cfg_file() function, in patch 8. +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; +} Note qfw_cfg_get_u32(): uint32_t qfw_cfg_get_u32(QFWCFG *fw_cfg, uint16_t key) { uint32_t value; qfw_cfg_get(fw_cfg, key, &value, sizeof(value)); return le32_to_cpu(value); } This function assumes that the wire encoding of the value read is little endian. So, calling this function is wrong; and calling be32_to_cpu() afterwards does not help. Namely: * On LE hosts, the find_fw_cfg_file() function happens to work, because: - the le32_to_cpu() call in qfw_cfg_get_u32() does nothing (it's identity), - the subsequent be32_to_cpu() call in find_fw_cfg_file() corresponds to the *blob-specific* encoding of the "count" field, in the fw_cfg directory blob. (Which is BE) Therefore we perform the one byte-swap that we need. * On BE hosts, stuff breaks, because: - the le32_to_cpu() call in qfw_cfg_get_u32() swaps the byte-order, - the subsequent be32_to_cpu() call in find_fw_cfg_file() does nothing, - thus, ultimately we have byte-swapped the contents of the "count" field of the directory blob, even though the blob-specific wire format thereof is *already* BE (= host-endian). On a BE host, all in all, there should be zero byte swaps for consuming "count". Now, how to fix this: eliminate - QemuCfgFile, - find_fw_cfg_file(), - and read_fw_cfg_file() altogether, and call qfw_cfg_get_file(), from "tests/libqos/fw_cfg.c". Some other tests look up fw_cfg directory entries with that function already (see call sites in "tests/fw_cfg-test.c"). Thanks Laszlo ^ permalink raw reply [flat|nested] 15+ messages in thread
* Re: [PULL v2 0/8] Ide patches 2019-10-08 21:58 ` Laszlo Ersek @ 2019-10-08 22:55 ` Laszlo Ersek 0 siblings, 0 replies; 15+ messages in thread From: Laszlo Ersek @ 2019-10-08 22:55 UTC (permalink / raw) To: Philippe Mathieu-Daudé, John Snow, Sam Eiderman Cc: Fam Zheng, Peter Maydell, Thomas Huth, Qemu-block, Michael S. Tsirkin, Laurent Vivier, QEMU Developers, Max Reitz, Gonglei (Arei), Gerd Hoffmann, Stefan Hajnoczi, Paolo Bonzini, Kevin Wolf On 10/08/19 23:58, Laszlo Ersek wrote: > On 10/07/19 19:55, Philippe Mathieu-Daudé wrote: >> On 10/7/19 7:35 PM, John Snow wrote: >>> On 10/7/19 8:33 AM, Peter Maydell wrote: >>>> On Thu, 3 Oct 2019 at 20:33, John Snow <jsnow@redhat.com> wrote: >>>>> >>>>> The following changes since commit >>>>> 7f21573c822805a8e6be379d9bcf3ad9effef3dc: >>>>> >>>>> Merge remote-tracking branch >>>>> 'remotes/huth-gitlab/tags/pull-request-2019-10-01' into staging >>>>> (2019-10-01 13:13:38 +0100) >>>>> >>>>> are available in the Git repository at: >>>>> >>>>> https://github.com/jnsnow/qemu.git tags/ide-pull-request >>>>> >>>>> for you to fetch changes up to >>>>> f6d61c9509c56eea3cdd2d23b40d285601b1c1ca: >>>>> >>>>> hd-geo-test: Add tests for lchs override (2019-10-03 14:36:54 -0400) >>>>> >>>>> ---------------------------------------------------------------- >>>>> Pull request V2 >>>>> >>>>> - Added signoff into the mirrored commits themselves (vs just the >>>>> email) >>>>> - Kudos to `stg-foreach stg edit --sign` >>>>> >>>>> ---------------------------------------------------------------- >>>> >>>> Hi; the new tests in hd-geo-test seem to hang on >>>> big-endian hosts (both s390x and ppc64 hung here): >>>> >>>> linux1@lxub05:~/qemu/build/all$ QTEST_QEMU_IMG=./qemu-img >>>> QTEST_QEMU_BINARY=x86_64-softmmu/qemu-system-x86_64 >>>> ./tests/hd-geo-test >>>> /x86_64/hd-geo/ide/none: OK >>>> /x86_64/hd-geo/ide/drive/cd_0: OK >>>> /x86_64/hd-geo/ide/drive/mbr/blank: OK >>>> /x86_64/hd-geo/ide/drive/mbr/lba: OK >>>> /x86_64/hd-geo/ide/drive/mbr/chs: OK >>>> /x86_64/hd-geo/ide/device/mbr/blank: OK >>>> /x86_64/hd-geo/ide/device/mbr/lba: OK >>>> /x86_64/hd-geo/ide/device/mbr/chs: OK >>>> /x86_64/hd-geo/ide/device/user/chs: OK >>>> /x86_64/hd-geo/ide/device/user/chst: OK >>>> /x86_64/hd-geo/override/ide: >>>> >>> >>> :( >>> >>>> >>>> thanks >>>> -- PMM >>>> >>> >>> Sam, can you investigate this? >> >> Not seeing my T-b tags makes me grumble because I don't remember which I >> reviewed and need to go check on the list. >> >> If the error is a endianess bug related to fw_cfg, you can add the >> "-trace fw_cfg*" in hd-geo-test::create_args() and rerun the tests on a >> BE system, the bug should appear straightly on stdout. >> >> Are FWLCHSEntry fields little-endian? Shouldn't >> get_boot_devices_lchs_list() use some le32_to_cpu() call for the LCHS >> values? >> > > *One* problem is most likely in the find_fw_cfg_file() function, in patch 8. > > +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; > +} > > Note qfw_cfg_get_u32(): > > uint32_t qfw_cfg_get_u32(QFWCFG *fw_cfg, uint16_t key) > { > uint32_t value; > qfw_cfg_get(fw_cfg, key, &value, sizeof(value)); > return le32_to_cpu(value); > } > > This function assumes that the wire encoding of the value read is little > endian. So, calling this function is wrong; and calling be32_to_cpu() > afterwards does not help. Namely: > > * On LE hosts, the find_fw_cfg_file() function happens to work, because: > > - the le32_to_cpu() call in qfw_cfg_get_u32() does nothing (it's identity), > - the subsequent be32_to_cpu() call in find_fw_cfg_file() corresponds to > the *blob-specific* encoding of the "count" field, in the fw_cfg > directory blob. (Which is BE) Therefore we perform the one byte-swap > that we need. > > * On BE hosts, stuff breaks, because: > > - the le32_to_cpu() call in qfw_cfg_get_u32() swaps the byte-order, > - the subsequent be32_to_cpu() call in find_fw_cfg_file() does nothing, > - thus, ultimately we have byte-swapped the contents of the "count" > field of the directory blob, even though the blob-specific wire format > thereof is *already* BE (= host-endian). On a BE host, all in all, there > should be zero byte swaps for consuming "count". And the hang is probably due to the loop in find_fw_cfg_file() counting up to cca. 0x2000_0000: - The file directory currently has room for 0x20 files, and if you byte-swap that as a uint32_t, you get 0x2000_0000. (You minimally get 0x0100_0000, if there's just one entry in the directory -- still 16,777,216 in decimal.) - Additionally, the loop body does not contain a "break" statement for when strcmp() matches; so even if there is a hit in the low numbers, the loop continues to the limit. Thanks Laszlo > Now, how to fix this: eliminate > - QemuCfgFile, > - find_fw_cfg_file(), > - and read_fw_cfg_file() > > altogether, and call qfw_cfg_get_file(), from "tests/libqos/fw_cfg.c". > > Some other tests look up fw_cfg directory entries with that function > already (see call sites in "tests/fw_cfg-test.c"). > > Thanks > Laszlo > ^ permalink raw reply [flat|nested] 15+ messages in thread
end of thread, other threads:[~2019-10-08 22:57 UTC | newest] Thread overview: 15+ messages (download: mbox.gz / follow: Atom feed) -- links below jump to the message on this page -- 2019-10-03 19:32 [PULL v2 0/8] Ide patches John Snow 2019-10-03 19:32 ` [PULL v2 1/8] block: Refactor macros - fix tabbing John Snow 2019-10-03 19:32 ` [PULL v2 2/8] block: Support providing LCHS from user John Snow 2019-10-03 19:32 ` [PULL v2 3/8] bootdevice: Add interface to gather LCHS John Snow 2019-10-03 19:32 ` [PULL v2 4/8] scsi: Propagate unrealize() callback to scsi-hd John Snow 2019-10-03 19:32 ` [PULL v2 5/8] bootdevice: Gather LCHS from all relevant devices John Snow 2019-10-03 19:32 ` [PULL v2 6/8] bootdevice: Refactor get_boot_devices_list John Snow 2019-10-03 19:32 ` [PULL v2 7/8] bootdevice: FW_CFG interface for LCHS values John Snow 2019-10-03 19:32 ` [PULL v2 8/8] hd-geo-test: Add tests for lchs override John Snow 2019-10-03 20:48 ` [PULL v2 0/8] Ide patches no-reply 2019-10-07 12:33 ` Peter Maydell 2019-10-07 17:35 ` John Snow 2019-10-07 17:55 ` Philippe Mathieu-Daudé 2019-10-08 21:58 ` Laszlo Ersek 2019-10-08 22:55 ` Laszlo Ersek
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).