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scsi: esp: fix migration 

Commit 926cde5 ("scsi: esp: make cmdbuf big enough for maximum CDB size",
2016-06-16) changed the size of a migrated field.  Split it in two
parts, and only migrate the second part in a new vmstate version.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
This commit is contained in:
Paolo Bonzini 2016-06-20 16:32:39 +02:00
parent 3638439d54
commit cc96677469
2 changed files with 7 additions and 3 deletions
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5
hw/scsi/esp.c
View File

@ -574,7 +574,7 @@ static bool esp_mem_accepts(void *opaque, hwaddr addr,
const VMStateDescription vmstate_esp = {
.name ="esp",
.version_id = 3,
.version_id = 4,
.minimum_version_id = 3,
.fields = (VMStateField[]) {
VMSTATE_BUFFER(rregs, ESPState),
@ -585,7 +585,8 @@ const VMStateDescription vmstate_esp = {
VMSTATE_BUFFER(ti_buf, ESPState),
VMSTATE_UINT32(status, ESPState),
VMSTATE_UINT32(dma, ESPState),
VMSTATE_BUFFER(cmdbuf, ESPState),
VMSTATE_PARTIAL_BUFFER(cmdbuf, ESPState, 16),
VMSTATE_BUFFER_START_MIDDLE_V(cmdbuf, ESPState, 16, 4),
VMSTATE_UINT32(cmdlen, ESPState),
VMSTATE_UINT32(do_cmd, ESPState),
VMSTATE_UINT32(dma_left, ESPState),

5
include/migration/vmstate.h
View File

@ -904,8 +904,11 @@ extern const VMStateInfo vmstate_info_bitmap;
#define VMSTATE_PARTIAL_BUFFER(_f, _s, _size) \
VMSTATE_STATIC_BUFFER(_f, _s, 0, NULL, 0, _size)
#define VMSTATE_BUFFER_START_MIDDLE_V(_f, _s, _start, _v) \
VMSTATE_STATIC_BUFFER(_f, _s, _v, NULL, _start, sizeof(typeof_field(_s, _f)))
#define VMSTATE_BUFFER_START_MIDDLE(_f, _s, _start) \
VMSTATE_STATIC_BUFFER(_f, _s, 0, NULL, _start, sizeof(typeof_field(_s, _f)))
VMSTATE_BUFFER_START_MIDDLE_V(_f, _s, _start, 0)
#define VMSTATE_PARTIAL_VBUFFER(_f, _s, _size) \
VMSTATE_VBUFFER(_f, _s, 0, NULL, 0, _size)