Re: [Qemu-devel] [PATCH for 1.4] block/vpc: Fix size calculation

[Kevin Wolf]

Am 11.02.2013 22:33, schrieb Stefan Weil:
> Does the patch really break Virtual PC VHD compatibility?
> 
> Or does VPC simply pass the size calculated from CHSto the
> guest - no matter how the disk image was created?In this case
> I see no need that QEMU must show the same behaviour.
> It's important to implement the VHD specification correctly,
> but we should not duplicate bugs of other emulators just
> to be compatible with them.

Bollocks. The whole point of supporting non-native image formats is
compatibility with other software. It's a good thing to be able to read
standard compliant images, but it's much more important to be able to
read real life images. We have real life images of both VPC and Hyper-V,
so we need to do our best to support both. Failing that, we need to stay
consistent with older qemu versions.

Kevin