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| author | Fam Zheng <famz@redhat.com> | 2014-03-06 16:26:02 +0800 |
|---|---|---|
| committer | Paolo Bonzini <pbonzini@redhat.com> | 2014-03-14 10:06:55 +0100 |
| commit | 2e323f03bfa323636552b386c982412944ff86ae (patch) | |
| tree | 15b053442320d9bdab701b8616f238b891c49f25 | |
| parent | 22956a3755749b9cf6375ad024d58c1d277100bf (diff) | |
| download | qemu-2e323f03bfa323636552b386c982412944ff86ae.tar.gz qemu-2e323f03bfa323636552b386c982412944ff86ae.tar.bz2 qemu-2e323f03bfa323636552b386c982412944ff86ae.zip | |
scsi: Fix migration of scsi sense data
c5f52875 changed the size of sense array in vmstate_scsi_device by
mistake. This patch restores the old size, and add a subsection for the
remaining part of the buffer size. So that migration is not broken.
Signed-off-by: Fam Zheng <famz@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
| -rw-r--r-- | hw/scsi/scsi-bus.c | 30 | ||||
| -rw-r--r-- | include/hw/scsi/scsi.h | 1 | ||||
| -rw-r--r-- | include/migration/vmstate.h | 3 |
3 files changed, 33 insertions, 1 deletions
diff --git a/hw/scsi/scsi-bus.c b/hw/scsi/scsi-bus.c index 50a0acf1fe..eaad925cbb 100644 --- a/hw/scsi/scsi-bus.c +++ b/hw/scsi/scsi-bus.c @@ -1905,6 +1905,26 @@ static const VMStateInfo vmstate_info_scsi_requests = { .put = put_scsi_requests, }; +static bool scsi_sense_state_needed(void *opaque) +{ + SCSIDevice *s = opaque; + + return s->sense_len > SCSI_SENSE_BUF_SIZE_OLD; +} + +static const VMStateDescription vmstate_scsi_sense_state = { + .name = "SCSIDevice/sense", + .version_id = 1, + .minimum_version_id = 1, + .minimum_version_id_old = 1, + .fields = (VMStateField []) { + VMSTATE_UINT8_SUB_ARRAY(sense, SCSIDevice, + SCSI_SENSE_BUF_SIZE_OLD, + SCSI_SENSE_BUF_SIZE - SCSI_SENSE_BUF_SIZE_OLD), + VMSTATE_END_OF_LIST() + } +}; + const VMStateDescription vmstate_scsi_device = { .name = "SCSIDevice", .version_id = 1, @@ -1915,7 +1935,7 @@ const VMStateDescription vmstate_scsi_device = { VMSTATE_UINT8(unit_attention.asc, SCSIDevice), VMSTATE_UINT8(unit_attention.ascq, SCSIDevice), VMSTATE_BOOL(sense_is_ua, SCSIDevice), - VMSTATE_UINT8_ARRAY(sense, SCSIDevice, SCSI_SENSE_BUF_SIZE), + VMSTATE_UINT8_SUB_ARRAY(sense, SCSIDevice, 0, SCSI_SENSE_BUF_SIZE_OLD), VMSTATE_UINT32(sense_len, SCSIDevice), { .name = "requests", @@ -1927,6 +1947,14 @@ const VMStateDescription vmstate_scsi_device = { .offset = 0, }, VMSTATE_END_OF_LIST() + }, + .subsections = (VMStateSubsection []) { + { + .vmsd = &vmstate_scsi_sense_state, + .needed = scsi_sense_state_needed, + }, { + /* empty */ + } } }; diff --git a/include/hw/scsi/scsi.h b/include/hw/scsi/scsi.h index e5fc39d504..1adb54906e 100644 --- a/include/hw/scsi/scsi.h +++ b/include/hw/scsi/scsi.h @@ -31,6 +31,7 @@ typedef struct SCSISense { uint8_t ascq; } SCSISense; +#define SCSI_SENSE_BUF_SIZE_OLD 96 #define SCSI_SENSE_BUF_SIZE 252 struct SCSICommand { diff --git a/include/migration/vmstate.h b/include/migration/vmstate.h index ded8e2302f..e7e170561d 100644 --- a/include/migration/vmstate.h +++ b/include/migration/vmstate.h @@ -650,6 +650,9 @@ extern const VMStateInfo vmstate_info_bitmap; #define VMSTATE_UINT8_ARRAY(_f, _s, _n) \ VMSTATE_UINT8_ARRAY_V(_f, _s, _n, 0) +#define VMSTATE_UINT8_SUB_ARRAY(_f, _s, _start, _num) \ + VMSTATE_SUB_ARRAY(_f, _s, _start, _num, 0, vmstate_info_uint8, uint8_t) + #define VMSTATE_UINT8_2DARRAY(_f, _s, _n1, _n2) \ VMSTATE_UINT8_2DARRAY_V(_f, _s, _n1, _n2, 0) |