Re: [Qemu-devel] [PATCH] ahci: Fix non-NCQ accesses for LBA > 16bits

[Kevin Wolf]

Am 19.05.2011 11:57, schrieb Alexander Graf:
> AHCI provides two ways of reading/writing data:
> 
>  1) NCQ
>  2) ATA commands with the LBA in the command FIS
> 
> In the second code path, we didn't handle any LBAs that were bigger than
> 16 bits, so whenever a guest that used high LBA numbers wanted to access
> data, the LBA got truncated down to 16 bits, giving the guest garbage.
> 
> This patch adds support for LBAs higher than 16 bits. I've tested that it
> works just fine with SeaBIOS and Linux guests. This patch also unbreaks
> the often reported grub errors people have seen with AHCI.
> 
> Signed-off-by: Alexander Graf <address@hidden>
> 
> ---
> 
> v1 -> v2:
> 
>   - document fis bytes

Thanks, applied to the block branch.

Kevin