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authorPaolo Bonzini <pbonzini@redhat.com>2011-12-15 07:24:30 -0500
committerPaolo Bonzini <pbonzini@redhat.com>2012-02-22 13:29:08 +0100
commit56b1fc48233499a395827a7f370429a989f5dc86 (patch)
tree666d91d52fadefd2315abaa67274123f353a19ff /hw
parent63f740dd9e66518ed65743835628503c04e72986 (diff)
scsi-generic: add migration support
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Diffstat (limited to 'hw')
-rw-r--r--hw/scsi-generic.c25
1 files changed, 25 insertions, 0 deletions
diff --git a/hw/scsi-generic.c b/hw/scsi-generic.c
index 86014aa89..d856d23b3 100644
--- a/hw/scsi-generic.c
+++ b/hw/scsi-generic.c
@@ -59,6 +59,28 @@ typedef struct SCSIGenericReq {
sg_io_hdr_t io_header;
} SCSIGenericReq;
+static void scsi_generic_save_request(QEMUFile *f, SCSIRequest *req)
+{
+ SCSIGenericReq *r = DO_UPCAST(SCSIGenericReq, req, req);
+
+ qemu_put_sbe32s(f, &r->buflen);
+ if (r->buflen && r->req.cmd.mode == SCSI_XFER_TO_DEV) {
+ assert(!r->req.sg);
+ qemu_put_buffer(f, r->buf, r->req.cmd.xfer);
+ }
+}
+
+static void scsi_generic_load_request(QEMUFile *f, SCSIRequest *req)
+{
+ SCSIGenericReq *r = DO_UPCAST(SCSIGenericReq, req, req);
+
+ qemu_get_sbe32s(f, &r->buflen);
+ if (r->buflen && r->req.cmd.mode == SCSI_XFER_TO_DEV) {
+ assert(!r->req.sg);
+ qemu_get_buffer(f, r->buf, r->req.cmd.xfer);
+ }
+}
+
static void scsi_free_request(SCSIRequest *req)
{
SCSIGenericReq *r = DO_UPCAST(SCSIGenericReq, req, req);
@@ -446,6 +468,8 @@ const SCSIReqOps scsi_generic_req_ops = {
.write_data = scsi_write_data,
.cancel_io = scsi_cancel_io,
.get_buf = scsi_get_buf,
+ .load_request = scsi_generic_load_request,
+ .save_request = scsi_generic_save_request,
};
static SCSIRequest *scsi_new_request(SCSIDevice *d, uint32_t tag, uint32_t lun,
@@ -474,6 +498,7 @@ static void scsi_generic_class_initfn(ObjectClass *klass, void *data)
dc->desc = "pass through generic scsi device (/dev/sg*)";
dc->reset = scsi_generic_reset;
dc->props = scsi_generic_properties;
+ dc->vmsd = &vmstate_scsi_device;
}
static TypeInfo scsi_generic_info = {