Re: [Qemu-devel] [PATCH RESEND] Support vhd type VHD_DIFFERENCING

[Stefan Hajnoczi]

On Thu, Nov 06, 2014 at 10:43:50PM +0800, Xiaodong Gong wrote:
> Now qemu only supports vhd type VHD_FIXED and VHD_DYNAMIC, so qemu
> can't read snapshot volume of vhd, and can't support other storage
> features of vhd file.
> 
> This patch add read parent information in function "vpc_open", read
> bitmap in "vpc_read", and change bitmap in "vpc_write".
> 
> Signed-off-by: Xiaodong Gong <address@hidden>
> Reviewed-by: Ding xiao <address@hidden>
> ---

Have you run tests/qemu-iotests/check for all 3 subformats (fixed,
dynamic, and differencing)?

http://qemu-project.org/Documentation/QemuIoTests

The tests need to pass before we can merge a new subformat.

Stefan

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