I see. thank both.
On Wed 01 Aug 2012 04:49:18 PM CST, ronnie sahlberg wrote:
Because opcode 0xA1 has a different meaning for CDROM/MMC devices.
On such devices 0xA1 means BLANK, so it would collide if QEMU some day
adds support for
re-writeable mmc device.
On Wed, Aug 1, 2012 at 6:45 PM, Paolo Bonzini <pbonz...@redhat.com> wrote:
Il 01/08/2012 10:43, Cong Meng ha scritto:
Please make this conditional on the type _not_ being TYPE_ROM.
May I ask why cdrom device should be an exception?
Because CD-ROM devices do not support ATA PASSTHROUGH (the SAT standard
only describes direct access devices---type=0x00). The 0xa1 command is
"BLANK" for CD-ROMs.
Paolo
