Re: [Qemu-devel] [PATCH V1 1/1] tests: Add migration test for aarch64

[Peter Maydell]

On 26 January 2018 at 19:46, Dr. David Alan Gilbert <address@hidden> wrote:
> * Peter Maydell (address@hidden) wrote:
>> I think the correct fix here is that your test code should turn
>> its MMU on. Trying to treat guest RAM as uncacheable doesn't work
>> for Arm KVM guests (for the same reason that VGA device video memory
>> doesn't work). If it's RAM your guest has to arrange to map it as
>> Normal Cacheable, and then everything should work fine.
>
> Does this cause problems with migrating at just the wrong point during
> a VM boot?

It wouldn't surprise me if it did, but I don't think I've ever
tried to provoke that problem...

thanks
-- PMM