Re: [Xen-devel] [PATCH v2] x86/HVM: use available linear->phys translations in REP MOVS/STOS handling

[Andrew Cooper <andrew.cooper3@xxxxxxxxxx>]

On 22/06/16 08:19, Jan Beulich wrote:
>>>> On 21.06.16 at 21:50, <andrew.cooper3@xxxxxxxxxx> wrote:
>> On 20/06/16 12:29, Jan Beulich wrote:
>>> If we have the translation result available already, we should also use
>>> it here. In my tests with Linux guests this eliminates all calls to
>>> hvmemul_linear_to_phys() from the STOS path and most from the MOVS one.
>>>
>>> Also record the translation for re-use at least during response
>>> processing.
>>>
>>> Signed-off-by: Jan Beulich <jbeulich@xxxxxxxx>
>> This patch is still broken.  All XenServer HVM guests (both windows and
>> linux) are dying, with Qemu citing
> _All_? That contradicts both my own testing and osstest's smoke
> one having succeeded.

Apologies for the noise.  This was actually caused by the DOMCTL
interface bump, but manifests itself as hvmloader getting stuck while
performing IO to Qemu.

After fixing up a local change we have, everything is back to full
working order.

~Andrew

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