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add "serial" parameter to -drive flag (Gleb Natapov)

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Windows calculates HW "uniqueness" based on a hard drive serial number
among other things. The patch allows to specify drive serial number
from a command line.

Signed-off-by: Gleb Natapov <gleb@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>



git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6214 c046a42c-6fe2-441c-8c8c-71466251a162
This commit is contained in:
aliguori 2009-01-07 17:32:33 +00:00
parent ff4b91c2f7
commit fa879c6414
5 changed files with 44 additions and 15 deletions
Download patch file Download diff file Expand all files Collapse all files

17
hw/scsi-disk.c
View file

@ -13,6 +13,8 @@
* the host adapter emulator.
*/
#include <qemu-common.h>
#include <sysemu.h>
//#define DEBUG_SCSI
#ifdef DEBUG_SCSI
@ -68,6 +70,7 @@ struct SCSIDeviceState
or from the AIO completion routines. */
scsi_completionfn completion;
void *opaque;
char drive_serial_str[21];
};
/* Global pool of SCSIRequest structures. */
@ -408,6 +411,8 @@ static int32_t scsi_send_command(SCSIDevice *d, uint32_t tag,
break;
case 0x80:
{
int l;
/* Device serial number, optional */
if (len < 4) {
BADF("Error: EVPD[Serial number] Inquiry buffer "
@ -416,6 +421,7 @@ static int32_t scsi_send_command(SCSIDevice *d, uint32_t tag,
}
DPRINTF("Inquiry EVPD[Serial number] buffer size %d\n", len);
l = MIN(len, strlen(s->drive_serial_str));
r->buf_len = 0;
@ -428,9 +434,9 @@ static int32_t scsi_send_command(SCSIDevice *d, uint32_t tag,
outbuf[r->buf_len++] = 0x80; // this page
outbuf[r->buf_len++] = 0x00;
outbuf[r->buf_len++] = 0x01; // 1 byte data follow
outbuf[r->buf_len++] = '0'; // 1 byte data follow
outbuf[r->buf_len++] = l;
memcpy(&outbuf[r->buf_len], s->drive_serial_str, l);
r->buf_len += l;
}
break;
@ -812,7 +818,10 @@ SCSIDevice *scsi_disk_init(BlockDriverState *bdrv, int tcq,
} else {
s->cluster_size = 1;
}
strncpy(s->drive_serial_str, drive_get_serial(s->bdrv),
sizeof(s->drive_serial_str));
if (strlen(s->drive_serial_str) == 0)
strcpy(s->drive_serial_str, "0");
d = (SCSIDevice *)qemu_mallocz(sizeof(SCSIDevice));
d->state = s;
d->destroy = scsi_destroy;