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authorFam Zheng <famz@redhat.com>2014-03-06 16:26:02 +0800
committerPaolo Bonzini <pbonzini@redhat.com>2014-03-14 10:06:55 +0100
commit2e323f03bfa323636552b386c982412944ff86ae (patch)
tree15b053442320d9bdab701b8616f238b891c49f25 /hw
parent22956a3755749b9cf6375ad024d58c1d277100bf (diff)
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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>
Diffstat (limited to 'hw')
-rw-r--r--hw/scsi/scsi-bus.c30
1 files changed, 29 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 */
+ }
}
};