On 11.05.2010, at 01:19, QiaoChong wrote: > When ahci init ,driver will send ATA_SRST command,ahci device report device > type through port's sig register. > Ahci disk lookup change from IF_SD to IF_SCSI now,because IF_SD does not > support cdrom media. > I just copy ide_atapi_cmd from hw/ide/core.c into hw/ahci.c,change a > little,then the cdrom can be identified,and read by os. > If qemu can change dma_buf_prepare,dma_buf_rw,dma_buf_commit to a function > pointer in BMDMAState,then I can rewrite three functions to support ahci's > prtd,because it is different from ide's. > > test a sata disk like this: > ./i386-softmmu/qemu -cdrom KNOPPIX_V6.0.1CD-2009-02-08-EN.iso -drive > if=scsi,file=/tmp/disk > test a sata cd like this: > ./i386-softmmu/qemu -cdrom KNOPPIX_V6.0.1CD-2009-02-08-EN.iso -drive > if=scsi,media=cdrom,file=KNOPPIX_V6.0.1CD-2009-02-08-EN.iso
Alright, I put the set into the git repo at: git://repo.or.cz/qemu/ahci.git branch "ahci" Please keep in mind that this is a pure working branch. For upstream submission we will need to clean it up completely. But this way we can stick to working code and improve it there. Alex
