From a3c02dd5b8aaaa3bd4c8433e271b5b36743897cd Mon Sep 17 00:00:00 2001 From: Paolo Bonzini Date: Wed, 22 Feb 2012 14:12:49 +0100 Subject: [PATCH 093/109] scsi-generic: add migration support RH-Author: Paolo Bonzini Message-id: <1329919979-20948-93-git-send-email-pbonzini@redhat.com> Patchwork-id: 37571 O-Subject: [RHEL 6.3 qemu-kvm PATCH v2 092/102] scsi-generic: add migration support Bugzilla: 782029 RH-Acked-by: Laszlo Ersek RH-Acked-by: Orit Wasserman RH-Acked-by: Gerd Hoffmann Signed-off-by: Paolo Bonzini --- hw/scsi-generic.c | 25 +++++++++++++++++++++++++ 1 files changed, 25 insertions(+), 0 deletions(-) Signed-off-by: Michal Novotny --- 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 d5da2bc..49a79d9 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); @@ -456,6 +478,8 @@ 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, @@ -473,6 +497,7 @@ static SCSIDeviceInfo scsi_generic_info = { .qdev.desc = "pass through generic scsi device (/dev/sg*)", .qdev.size = sizeof(SCSIDevice), .qdev.reset = scsi_generic_reset, + .qdev.vmsd = &vmstate_scsi_device, .init = scsi_generic_initfn, .destroy = scsi_destroy, .alloc_req = scsi_new_request, -- 1.7.7.6