From 3b386a5b72a9efe9cf362410feedd3bfc71ff107 Mon Sep 17 00:00:00 2001 From: Asias He Date: Fri, 15 Mar 2013 09:45:16 +0800 Subject: virtio-scsi: Pack struct virtio_scsi_{req_cmd,resp_cmd} 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 (cherry picked from commit b44a7be17bdd270ea029a8e2ec0c2e80c6cd0444) --- 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 -- cgit v1.1