On 9/25/19 1:06 PM, Sam Eiderman wrote:

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>

Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.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 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)

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) \

On 9/25/19 1:06 PM, Sam Eiderman wrote:

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>

Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>

--- hw/scsi/scsi-bus.c | 16 ++++++++++++++++ include/hw/scsi/scsi.h | 1 + 2 files changed, 17 insertions(+)

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); }

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,

On 9/26/19 5:57 AM, Philippe Mathieu-Daudé wrote:

Hi Sam,

On 9/25/19 1:06 PM, Sam Eiderman wrote:

...

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> --- 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);

Hmm maybe we can g_free(bootpath) directly here.

I think it's okay to do it at the bottom of the loop. No real benefit to being that eager to free resources in my mind. I expect setup at the top of a block and teardown at the bottom of a block. Trying to do too much in the middle gets messy in my opinion, not that it seems to matter here.

...

+ + 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);

OK. Can you add a test in tests/fw_cfg-test.c please?

:D

...

+ 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 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);

Please add some documentation. At least 'size' must be non-NULL.

Sure; but I wasn't going to gate on it because this series went unloved for so long. At this point, a follow-up patch is fine.

Ideally you should add doc for the other functions added in 3/8 "bootdevice: Add interface to gather LCHS" too.

Same thing here.

John, what do you think about extracting the *boot_device* functions out of "sysemu.h"?

Potentially worthwhile; but not critical at the moment. The source tree is not the best-organized thing as-is and I don't think it's fair to hold this series up for much longer for nice-to-haves, ultimately. More targeted improvements might avoid the "whose responsibility is it to stage this?" hot potato we played with this one; so I'd rather have smaller follow-up patches handled by the respective maintainers.

Thanks,

Phil.

Thanks for the reviews :) --js

On 9/26/19 9:09 PM, Philippe Mathieu-Daudé wrote:

On 9/26/19 8:26 PM, John Snow wrote:

...

On 9/26/19 5:57 AM, Philippe Mathieu-Daudé wrote:

...

Hi Sam,

On 9/25/19 1:06 PM, Sam Eiderman wrote:

...

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> --- 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);

Hmm maybe we can g_free(bootpath) directly here.

I think it's okay to do it at the bottom of the loop. No real benefit to being that eager to free resources in my mind. I expect setup at the top of a block and teardown at the bottom of a block.

Trying to do too much in the middle gets messy in my opinion, not that it seems to matter here.

No problem.

...

...

...

+ + 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);

OK. Can you add a test in tests/fw_cfg-test.c please?

:D

...

...

+ 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 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);

Please add some documentation. At least 'size' must be non-NULL.

Sure; but I wasn't going to gate on it because this series went unloved for so long. At this point, a follow-up patch is fine.

OK

...

...

Ideally you should add doc for the other functions added in 3/8 "bootdevice: Add interface to gather LCHS" too.

Same thing here.

...

John, what do you think about extracting the *boot_device* functions out of "sysemu.h"?

Potentially worthwhile; but not critical at the moment. The source tree is not the best-organized thing as-is and I don't think it's fair to hold this series up for much longer for nice-to-haves, ultimately.

More targeted improvements might avoid the "whose responsibility is it to stage this?" hot potato we played with this one; so I'd rather have smaller follow-up patches handled by the respective maintainers.

Sure, fair enough.

I forgot: Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>

Hi Sam, On 9/29/19 12:13 PM, Sam Eiderman wrote:

Philippe, thanks for the fast review,

Fast is not always the friend of careful.

John, thanks for picking up this hot potato :-)

Sam

On Thu, Sep 26, 2019 at 10:16 PM Philippe Mathieu-Daudé <philmd@redhat.com <mailto:philmd@redhat.com>> wrote:

On 9/26/19 9:09 PM, Philippe Mathieu-Daudé wrote: > On 9/26/19 8:26 PM, John Snow wrote: >> On 9/26/19 5:57 AM, Philippe Mathieu-Daudé wrote: >>> Hi Sam, >>> >>> On 9/25/19 1:06 PM, Sam Eiderman wrote: >>>> From: Sam Eiderman <shmuel.eiderman@oracle.com <mailto: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 <mailto:karl.heubaum@oracle.com>> >>>> Reviewed-by: Arbel Moshe <arbel.moshe@oracle.com <mailto:arbel.moshe@oracle.com>> >>>> Signed-off-by: Sam Eiderman <shmuel.eiderman@oracle.com <mailto: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 */

I suppose the lchs struct is serialized in little-endian.

>>>> +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);

Sam. can you check if you don't need endianness conversion here?

>>> >>> Hmm maybe we can g_free(bootpath) directly here. >>> >> >> I think it's okay to do it at the bottom of the loop. No real benefit to >> being that eager to free resources in my mind. I expect setup at the top >> of a block and teardown at the bottom of a block. >> >> Trying to do too much in the middle gets messy in my opinion, not that >> it seems to matter here. > > No problem. > >>>> + >>>> +        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); >>> >>> OK. Can you add a test in tests/fw_cfg-test.c please? >>> >> >> :D >> >>>> +        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 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); >>> >>> Please add some documentation. At least 'size' must be non-NULL. >>> >> >> Sure; but I wasn't going to gate on it because this series went unloved >> for so long. At this point, a follow-up patch is fine. > > OK > >> >>> Ideally you should add doc for the other functions added in 3/8 >>> "bootdevice: Add interface to gather LCHS" too. >>> >> >> Same thing here. >> >>> John, what do you think about extracting the *boot_device* functions out >>> of "sysemu.h"? >>> >> >> Potentially worthwhile; but not critical at the moment. The source tree >> is not the best-organized thing as-is and I don't think it's fair to >> hold this series up for much longer for nice-to-haves, ultimately. >> >> More targeted improvements might avoid the "whose responsibility is it >> to stage this?" hot potato we played with this one; so I'd rather have >> smaller follow-up patches handled by the respective maintainers. > > Sure, fair enough.

I forgot: Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com <mailto:philmd@redhat.com>>

Meanwhile I withdraw my fast R-b :( Regards, Phil.

Gentle Ping, Philippe, John? Just wondering if the series is okay, as Gerd pointed out this series is a blocker for the corresponding changes in SeaBIOS for v 1.13 Sam On Tue, Oct 8, 2019 at 2:51 PM Sam Eiderman <sameid@google.com> wrote:

On Tue, Oct 8, 2019, 13:34 Philippe Mathieu-Daudé <philmd@redhat.com> wrote:

...

Hi Sam,

On 9/29/19 12:13 PM, Sam Eiderman wrote:

...

Philippe, thanks for the fast review,

Fast is not always the friend of careful.

...

John, thanks for picking up this hot potato :-)

Sam

On Thu, Sep 26, 2019 at 10:16 PM Philippe Mathieu-Daudé <philmd@redhat.com <mailto:philmd@redhat.com>> wrote:

On 9/26/19 9:09 PM, Philippe Mathieu-Daudé wrote: > On 9/26/19 8:26 PM, John Snow wrote: >> On 9/26/19 5:57 AM, Philippe Mathieu-Daudé wrote: >>> Hi Sam, >>> >>> On 9/25/19 1:06 PM, Sam Eiderman wrote: >>>> From: Sam Eiderman <shmuel.eiderman@oracle.com <mailto: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 <mailto:karl.heubaum@oracle.com>> >>>> Reviewed-by: Arbel Moshe <arbel.moshe@oracle.com <mailto:arbel.moshe@oracle.com>> >>>> Signed-off-by: Sam Eiderman <shmuel.eiderman@oracle.com <mailto: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 */

I suppose the lchs struct is serialized in little-endian.

Nice catch, that's just a bad comment, should be removed. There used to be a struct with 3 uint32_t values, Laszlo pointed out that there is an endianess problem (this was fixed in v3) later Kevin suggested to make it a textual interface and the struct was removed (in v4) but the comment remained.

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>>>> +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);

Sam. can you check if you don't need endianness conversion here?

Hmm, since this is a textual interface, I believe this should work no?

uint32_t a = 4; g_strdup_printf("%s" PRIu32, a);

Should return "4" no matter the endianess? (Taken care of by glib?)

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>>> >>> Hmm maybe we can g_free(bootpath) directly here. >>> >> >> I think it's okay to do it at the bottom of the loop. No real benefit to >> being that eager to free resources in my mind. I expect setup at the top >> of a block and teardown at the bottom of a block. >> >> Trying to do too much in the middle gets messy in my opinion, not that >> it seems to matter here. > > No problem. > >>>> + >>>> + 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); >>> >>> OK. Can you add a test in tests/fw_cfg-test.c please? >>> >> >> :D >> >>>> + 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 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); >>> >>> Please add some documentation. At least 'size' must be non-NULL. >>> >> >> Sure; but I wasn't going to gate on it because this series went unloved >> for so long. At this point, a follow-up patch is fine. > > OK > >> >>> Ideally you should add doc for the other functions added in 3/8 >>> "bootdevice: Add interface to gather LCHS" too. >>> >> >> Same thing here. >> >>> John, what do you think about extracting the *boot_device* functions out >>> of "sysemu.h"? >>> >> >> Potentially worthwhile; but not critical at the moment. The source tree >> is not the best-organized thing as-is and I don't think it's fair to >> hold this series up for much longer for nice-to-haves, ultimately. >> >> More targeted improvements might avoid the "whose responsibility is it >> to stage this?" hot potato we played with this one; so I'd rather have >> smaller follow-up patches handled by the respective maintainers. > > Sure, fair enough.

I forgot: Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com <mailto:philmd@redhat.com>>

Meanwhile I withdraw my fast R-b :(

Regards,

Phil.

On 9/25/19 1:06 PM, Sam Eiderman wrote:

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> --- tests/Makefile.include | 2 +- tests/hd-geo-test.c | 589 +++++++++++++++++++++++++++++++++++++++++ 2 files changed, 590 insertions(+), 1 deletion(-)

diff --git a/tests/Makefile.include b/tests/Makefile.include index 479664f899..a5b92fea6a 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 \ 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);

Oh I'm glad to see the test I requested while reviewing the previous patch! I'll have a look at it, but John 589 LoC I doubt I can do it for Friday.

+ + 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();