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[Qemu-devel] [PATCH 3/5] scsi: copy serial number into VPD page 0x83
From: |
Paolo Bonzini |
Subject: |
[Qemu-devel] [PATCH 3/5] scsi: copy serial number into VPD page 0x83 |
Date: |
Mon, 19 Mar 2012 17:19:33 +0100 |
Currently QEMU passes the qdev device id to the guest in an ASCII-string
designator in page 0x83. While this is fine, it does not match what
real hardware does; usually the ASCII-string designator there hosts
another copy of the serial number (there can be other designators,
for example with a world-wide name). Do the same for QEMU SCSI
disks.
ATAPI does not support VPD pages, so it does not matter there.
Signed-off-by: Paolo Bonzini <address@hidden>
---
hw/scsi-disk.c | 7 ++++---
1 files changed, 4 insertions(+), 3 deletions(-)
diff --git a/hw/scsi-disk.c b/hw/scsi-disk.c
index 7846f45..9949786 100644
--- a/hw/scsi-disk.c
+++ b/hw/scsi-disk.c
@@ -471,8 +471,9 @@ static int scsi_disk_emulate_inquiry(SCSIRequest *req,
uint8_t *outbuf)
case 0x83: /* Device identification page, mandatory */
{
- int max_len = 255 - 8;
- int id_len = strlen(bdrv_get_device_name(s->qdev.conf.bs));
+ const char *str = s->serial ?:
bdrv_get_device_name(s->qdev.conf.bs);
+ int max_len = s->serial ? 20 : 255 - 8;
+ int id_len = strlen(str);
if (id_len > max_len) {
id_len = max_len;
@@ -486,7 +487,7 @@ static int scsi_disk_emulate_inquiry(SCSIRequest *req,
uint8_t *outbuf)
outbuf[buflen++] = 0; // reserved
outbuf[buflen++] = id_len; // length of data following
- memcpy(outbuf+buflen, bdrv_get_device_name(s->qdev.conf.bs),
id_len);
+ memcpy(outbuf+buflen, str, id_len);
buflen += id_len;
break;
}
--
1.7.7.6
- [Qemu-devel] [PULL 0/5] SCSI patches 2012-03-19, Paolo Bonzini, 2012/03/19
- [Qemu-devel] [PATCH 2/5] scsi-cd: check ready condition before processing several commands, Paolo Bonzini, 2012/03/19
- [Qemu-devel] [PATCH 3/5] scsi: copy serial number into VPD page 0x83,
Paolo Bonzini <=
- [Qemu-devel] [PATCH 1/5] get rid of CONFIG_VIRTIO_SCSI, Paolo Bonzini, 2012/03/19
- [Qemu-devel] [PATCH 4/5] virtio-scsi: call unregister_savevm properly, Paolo Bonzini, 2012/03/19
- [Qemu-devel] [PATCH 5/5] scsi: add get_dev_path, Paolo Bonzini, 2012/03/19
- Re: [Qemu-devel] [PULL 0/5] SCSI patches 2012-03-19, Anthony Liguori, 2012/03/19