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[Qemu-devel] [PATCH 2/2] virtio-scsi: Pack struct virtio_scsi_{req_cmd,
From: |
Asias He |
Subject: |
[Qemu-devel] [PATCH 2/2] virtio-scsi: Pack struct virtio_scsi_{req_cmd, resp_cmd} |
Date: |
Fri, 15 Mar 2013 09:45:16 +0800 |
Device needs the exact size of these data structure. Prevent padding.
This fixes guest hang when booting seabios + tcm_vhost.
Signed-off-by: Asias He <address@hidden>
---
src/virtio-scsi.h | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/src/virtio-scsi.h b/src/virtio-scsi.h
index bbfbf30..96c3701 100644
--- a/src/virtio-scsi.h
+++ b/src/virtio-scsi.h
@@ -26,7 +26,7 @@ struct virtio_scsi_req_cmd {
u8 prio;
u8 crn;
char cdb[VIRTIO_SCSI_CDB_SIZE];
-};
+} __attribute__((packed));
/* This is the first element of the "in" scatter-gather list. */
struct virtio_scsi_resp_cmd {
@@ -36,7 +36,7 @@ struct virtio_scsi_resp_cmd {
u8 status;
u8 response;
u8 sense[VIRTIO_SCSI_SENSE_SIZE];
-};
+} __attribute__((packed));
#define VIRTIO_SCSI_S_OK 0
--
1.8.1.4