diff options
| author | Paolo Bonzini <pbonzini@redhat.com> | 2011-12-15 07:24:30 -0500 |
|---|---|---|
| committer | Paolo Bonzini <pbonzini@redhat.com> | 2012-02-22 13:29:08 +0100 |
| commit | 56b1fc48233499a395827a7f370429a989f5dc86 (patch) | |
| tree | 666d91d52fadefd2315abaa67274123f353a19ff | |
| parent | 63f740dd9e66518ed65743835628503c04e72986 (diff) | |
scsi-generic: add migration support
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
| -rw-r--r-- | hw/scsi-generic.c | 25 |
1 files changed, 25 insertions, 0 deletions
diff --git a/hw/scsi-generic.c b/hw/scsi-generic.c index 86014aa893..d856d23b3b 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 = { |