It's a copy of dev->serial. The copy was needed for non-qdevified
controllers, which lacked dev.
Note that pci_piix3_xen_ide_unplug() did not clear the copy (it only
cleared the copy of bs). Begs the question whether stale data could
have been used after unplug. As far as I can tell, the copy was used
only when the copy of bs was non-null, thus no bug there.
Signed-off-by: Markus Armbruster <arm...@redhat.com>
---
hw/ide/core.c | 14 ++++----------
hw/ide/internal.h | 3 +--
hw/ide/qdev.c | 10 +++++-----
3 files changed, 10 insertions(+), 17 deletions(-)
diff --git a/hw/ide/core.c b/hw/ide/core.c
index 05a2e61..2608f67 100644
--- a/hw/ide/core.c
+++ b/hw/ide/core.c
@@ -94,7 +94,7 @@ static void ide_identify(IDEState *s)
put_le16(p + 4, 512 * s->dev->conf.secs); /* XXX: retired, remove ? */
put_le16(p + 5, 512); /* XXX: retired, remove ? */
put_le16(p + 6, s->dev->conf.secs);
- padstr((char *)(p + 10), s->drive_serial_str, 20); /* serial number */
+ padstr((char *)(p + 10), s->dev->serial, 20); /* serial number */
put_le16(p + 20, 3); /* XXX: retired, remove ? */
put_le16(p + 21, 512); /* cache size in sectors */
put_le16(p + 22, 4); /* ecc bytes */
@@ -198,7 +198,7 @@ static void ide_atapi_identify(IDEState *s)
p = (uint16_t *)s->io_buffer;
/* Removable CDROM, 50us response, 12 byte packets */
put_le16(p + 0, (2 << 14) | (5 << 8) | (1 << 7) | (2 << 5) | (0 << 0));
- padstr((char *)(p + 10), s->drive_serial_str, 20); /* serial number */
+ padstr((char *)(p + 10), s->dev->serial, 20); /* serial number */
put_le16(p + 20, 3); /* buffer type */
put_le16(p + 21, 512); /* cache size in sectors */
put_le16(p + 22, 4); /* ecc bytes */
@@ -257,7 +257,7 @@ static void ide_cfata_identify(IDEState *s)
put_le16(p + 6, s->dev->conf.secs); /* Default sectors per track */
put_le16(p + 7, s->nb_sectors >> 16); /* Sectors per card */
put_le16(p + 8, s->nb_sectors); /* Sectors per card */
- padstr((char *)(p + 10), s->drive_serial_str, 20); /* serial number */
+ padstr((char *)(p + 10), s->dev->serial, 20); /* serial number */
put_le16(p + 22, 0x0004); /* ECC bytes */
padstr((char *) (p + 23), s->dev->version, 8); /* Firmware Revision */
padstr((char *) (p + 27), s->drive_model_str, 40);/* Model number */
@@ -1931,7 +1931,7 @@ static const BlockDevOps ide_cd_block_ops = {
};
int ide_init_drive(IDEState *s, IDEDriveKind kind,
- const char *serial, const char *model,
+ const char *model,
uint64_t wwn)
{
BlockDriverState *bs = s->dev->conf.bs;
@@ -1961,12 +1961,6 @@ int ide_init_drive(IDEState *s, IDEDriveKind kind,
return -1;
}
}
- if (serial) {
- pstrcpy(s->drive_serial_str, sizeof(s->drive_serial_str), serial);
- } else {
- snprintf(s->drive_serial_str, sizeof(s->drive_serial_str),
- "QM%05d", s->drive_serial);
- }
if (model) {
pstrcpy(s->drive_model_str, sizeof(s->drive_model_str), model);
} else {
diff --git a/hw/ide/internal.h b/hw/ide/internal.h
index 544f3b1..28b60aa 100644
--- a/hw/ide/internal.h
+++ b/hw/ide/internal.h
@@ -351,7 +351,6 @@ struct IDEState {
int identify_set;
uint8_t identify_data[512];
int drive_serial;
- char drive_serial_str[21];
char drive_model_str[41];
uint64_t wwn;
/* ide regs */
@@ -543,7 +542,7 @@ 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, IDEDriveKind kind,
- const char *serial, const char *model,
+ const char *model,
uint64_t wwn);
void ide_init2(IDEBus *bus, qemu_irq irq);
void ide_init2_with_non_qdev_drives(IDEBus *bus, DriveInfo *hd0,
diff --git a/hw/ide/qdev.c b/hw/ide/qdev.c
index 0139cd1..ef7af1f 100644
--- a/hw/ide/qdev.c
+++ b/hw/ide/qdev.c
@@ -148,19 +148,19 @@ static int ide_dev_initfn(IDEDevice *dev, IDEDriveKind
kind)
return -1;
}
+ if (!dev->serial) {
+ dev->serial = g_strdup_printf("QM%05d", s->drive_serial);
+ }
+
if (!dev->version) {
dev->version = g_strdup(qemu_get_version());
}
if (ide_init_drive(s, kind,
- dev->serial, dev->model, dev->wwn) < 0) {
+ dev->model, dev->wwn) < 0) {
return -1;
}
- if (!dev->serial) {
- dev->serial = g_strdup(s->drive_serial_str);
- }
-
add_boot_device_path(dev->conf.bootindex, &dev->qdev,
dev->unit ? "/disk@1" : "/disk@0");
--
1.7.11.7
