Il 23/08/2012 11:31, Cong Meng ha scritto: >> For disks, this should be fixed simply by using scsi-block instead of >> scsi-generic. >> >> CD-ROMs are indeed more complicated because burning CDs cannot be done >> with syscalls. :/ > > So, as the problem exist to CD-ROM, I will continue to get these patches > move on.
I'm still trying to understand the extent of the problem. The problem occurs for _USB_ CD-ROMs according to Ben. Passthrough of USB storage devices should be done via USB passthrough, not virtio-scsi. If we do USB passthrough via the SCSI layer we miss on all the quirks that the OS may do based on the USB product/vendor pairs. There's no end to these, and some of the quirks may cause the device to lock up or corruption. I'd rather see a reproducer using SAS/ATA/ATAPI disks before punting. Paolo _______________________________________________ Virtualization mailing list Virtualization@lists.linux-foundation.org https://lists.linuxfoundation.org/mailman/listinfo/virtualization
