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authorGreg Kurz <gkurz@linux.vnet.ibm.com>2014-06-30 17:33:18 +0200
committerPaolo Bonzini <pbonzini@redhat.com>2014-07-01 09:40:38 +0200
commitdfecbb95e38d94d0e68f6e648a3c6489219a885d (patch)
tree3b10449f0fbcc90b3d8bb6360d5b7ff4882072c0
parentec9fe956d5c728da770db5ec9bc429080ccb5043 (diff)
virtio-scsi: virtio_scsi_push_event() lacks VirtIOSCSIReq parsing
Hotplug of a virtio scsi disk is currently broken: no disk appears in the guest (verified with a fedora 20 host running a fedora 20 guest with KVM). Bisect leeds to Paolo's patches to support any_layout, especially this commit: commit 36b15c79aa1bef5fe7543f9f2629b6413720bbfb Author: Paolo Bonzini <pbonzini@redhat.com> Date: Tue Jun 10 16:21:18 2014 +0200 virtio-scsi: start preparing for any_layout It modifies virtio_scsi_pop_req() so that it is up to the callers to parse the virtio scsi request. It seems that virtio_scsi_push_event() was not modified accordingly... This patch adds a call to virtio_scsi_parse_req(). It also drops some sanity checks that are already performed by virtio_scsi_parse_req(). Signed-off-by: Greg Kurz <gkurz@linux.vnet.ibm.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
-rw-r--r--hw/scsi/virtio-scsi.c8
1 files changed, 1 insertions, 7 deletions
diff --git a/hw/scsi/virtio-scsi.c b/hw/scsi/virtio-scsi.c
index 04ecfa7e9a..3fecdcaa2e 100644
--- a/hw/scsi/virtio-scsi.c
+++ b/hw/scsi/virtio-scsi.c
@@ -565,7 +565,6 @@ static void virtio_scsi_push_event(VirtIOSCSI *s, SCSIDevice *dev,
VirtIOSCSIReq *req;
VirtIOSCSIEvent *evt;
VirtIODevice *vdev = VIRTIO_DEVICE(s);
- int in_size;
if (!(vdev->status & VIRTIO_CONFIG_S_DRIVER_OK)) {
return;
@@ -577,17 +576,12 @@ static void virtio_scsi_push_event(VirtIOSCSI *s, SCSIDevice *dev,
return;
}
- if (req->elem.out_num) {
- virtio_scsi_bad_req();
- }
-
if (s->events_dropped) {
event |= VIRTIO_SCSI_T_EVENTS_MISSED;
s->events_dropped = false;
}
- in_size = iov_size(req->elem.in_sg, req->elem.in_num);
- if (in_size < sizeof(VirtIOSCSIEvent)) {
+ if (virtio_scsi_parse_req(req, 0, sizeof(VirtIOSCSIEvent))) {
virtio_scsi_bad_req();
}