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authorJohn Millikin <john@john-millikin.com>2022-08-04 21:29:51 +0900
committerPaolo Bonzini <pbonzini@redhat.com>2022-10-10 09:23:16 +0200
commit298c31de9871b971b86356164633b9a5861af3db (patch)
tree1466e04e4ba722c36f56e587c114577280c97a79 /hw
parentf1d33f55c47dfdaf8daacd618588ad3ae4c452d1 (diff)
scsi-disk: support setting CD-ROM block size via device options
SunOS expects CD-ROM devices to have a block size of 512, and will fail to mount or install using QEMU's default block size of 2048. When initializing the SCSI device, allow the `physical_block_size' block device option to override the default block size. Signed-off-by: John Millikin <john@john-millikin.com> Message-Id: <20220804122950.1577012-1-john@john-millikin.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Diffstat (limited to 'hw')
-rw-r--r--hw/scsi/scsi-disk.c7
1 files changed, 6 insertions, 1 deletions
diff --git a/hw/scsi/scsi-disk.c b/hw/scsi/scsi-disk.c
index 399e1787ea..e493c28814 100644
--- a/hw/scsi/scsi-disk.c
+++ b/hw/scsi/scsi-disk.c
@@ -2544,6 +2544,7 @@ static void scsi_cd_realize(SCSIDevice *dev, Error **errp)
SCSIDiskState *s = DO_UPCAST(SCSIDiskState, qdev, dev);
AioContext *ctx;
int ret;
+ uint32_t blocksize = 2048;
if (!dev->conf.blk) {
/* Anonymous BlockBackend for an empty drive. As we put it into
@@ -2553,9 +2554,13 @@ static void scsi_cd_realize(SCSIDevice *dev, Error **errp)
assert(ret == 0);
}
+ if (dev->conf.physical_block_size != 0) {
+ blocksize = dev->conf.physical_block_size;
+ }
+
ctx = blk_get_aio_context(dev->conf.blk);
aio_context_acquire(ctx);
- s->qdev.blocksize = 2048;
+ s->qdev.blocksize = blocksize;
s->qdev.type = TYPE_ROM;
s->features |= 1 << SCSI_DISK_F_REMOVABLE;
if (!s->product) {