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ide: Add "model=s" qdev option

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Allow the user to override the default disk model name "QEMU HARDDISK".

Some Linux distributions use the /dev/disk/by-id/scsi-SATA_name-of-disk-
model_serial addressing scheme when refering to partitions in /etc/fstab
and elsewhere. This causes problems when starting a disk image taken from
an existing physical server under qemu, because when running under qemu
name-of-disk-model is always "QEMU HARDDISK".

This patch introduces a model=s option which in combination with the
existing serial=s option can be used to fake the disk the operating
system was previously on, allowing the OS to boot properly.

Cc: kwolf@redhat.com
Signed-off-by: Floris Bos <dev@noc-ps.com>
Reviewed-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
This commit is contained in:
Floris Bos 2012-03-12 21:05:09 +01:00 • committed by Kevin Wolf
parent 2844bdd99a
commit 27e0c9a1bb
3 changed files with 29 additions and 8 deletions
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4
hw/ide/internal.h
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@ -348,6 +348,7 @@ struct IDEState {
uint8_t identify_data[512];
int drive_serial;
char drive_serial_str[21];
char drive_model_str[41];
/* ide regs */
uint8_t feature;
uint8_t error;
@ -468,6 +469,7 @@ struct IDEDevice {
BlockConf conf;
char *version;
char *serial;
char *model;
};
#define BM_STATUS_DMAING 0x01
@ -534,7 +536,7 @@ void ide_data_writel(void *opaque, uint32_t addr, uint32_t val);
uint32_t ide_data_readl(void *opaque, uint32_t addr);
int ide_init_drive(IDEState *s, BlockDriverState *bs, IDEDriveKind kind,
const char *version, const char *serial);
const char *version, const char *serial, const char *model);
void ide_init2(IDEBus *bus, qemu_irq irq);
void ide_init2_with_non_qdev_drives(IDEBus *bus, DriveInfo *hd0,
DriveInfo *hd1, qemu_irq irq);