[Qemu-devel] Re: [RFC] [PATCH] add ahci support into qemu

[Sebastian Herbszt]

Hi,

乔崇  wrote:
> Hi,Alexander Graf.
>
>  I am very glad you noticed my patch about ahci.I love qemu just like I love linux.I wish I could do much more work on 
> qemu development.
>
> I had cloned qemu from master branch,add my patch into it,and tested ahci on 
> i386 softmmu.
>
> If anyone is interested on ahci,you can test my patch like this:
>
> git-clone -ls git://git.savannah.nongnu.org/qemu
> patch -p1 -i 0001-add-ahci-support-into-qemu-only-support-sata-disk.patch
> patch -p1 -i 0002-add-ahci-device-into-i386-pc-just-for-test.patch

The last submission was missing the qemu "glue", but this one looks complete. Nonetheless the old one was working fine 
enough.

> ./configure --target-list=i386-softmmu
> make
>
> dd if=/dev/zero of=/tmp/disk bs=1M count=100
> ./i386-softmmu/qemu  -cdrom KNOPPIX_V6.0.1CD-2009-02-08-EN.iso -boot d -drive 
> if=sd,file=/tmp/disk
>
> After linux boot,you will find a ahci device named sda.
>
> Now this patch only support sata disk.
> Most ahci registers and operations which are not necessary on linux are ignored.
> Now this patch support disk identify,dma read,dma write,ignore other opertions.

Do you intent to work on this and complet the support?
There are also some minor changes needed like moving PCI_VENDOR_MYDEVICE
and PCI_PRODUCT_MYDEVICE to pci.h and others.

Did you use the Intel document #301473 for reference?

> By the way how you send patch to mail list?

Try "git send-email".


Regards,
Sebastian