[Qemu-devel] Re: [PATCH 0/6] [AHCI]resend all patches to add ahci support into qemu

[Alexander Graf]

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