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 <j...@john-millikin.com> --- hw/scsi/scsi-disk.c | 7 ++++++- 1 file changed, 6 insertions(+), 1 deletion(-) This is the same diff as sent to qemu-devel@ about a week ago. That first email seems to have been eaten by a grue, but replying to it worked, so maybe the grue is gone now. See https://gitlab.com/qemu-project/qemu/-/issues/1127 for some related discussion about SunOS CD-ROM compatibility. diff --git a/hw/scsi/scsi-disk.c b/hw/scsi/scsi-disk.c index f5cdb9ad4b..acdf8dc05c 100644 --- a/hw/scsi/scsi-disk.c +++ b/hw/scsi/scsi-disk.c @@ -2533,6 +2533,7 @@ 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 @@ -2542,9 +2543,13 @@ 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) { -- 2.25.1
