Re: [Xen-devel] [PATCH v2 16/25] x86/pv: Use per-domain policy information in pv_cpuid()

[Boris Ostrovsky <boris.ostrovsky@xxxxxxxxxx>]

On 01/12/2017 03:48 PM, Andrew Cooper wrote:
> On 12/01/17 20:46, Boris Ostrovsky wrote:
>> On 01/12/2017 02:27 PM, Andrew Cooper wrote:
>>> On 12/01/17 18:00, Boris Ostrovsky wrote:
>>>>> Ahh! found it.  This is a side effect of starting to generate the dom0
>>>>> policy in Xen.
>>>>>
>>>>> Can you try this patch?
>>>> Intel/AMD HVM/PV 64/32bit all look good. So
>>>>
>>>> Tested-by: Boris Ostrovsky <boris.ostrovsky@xxxxxxxxxx>
>>> Does this mean that newer versions of Linux more picky about what they
>>> tolerate in cpuid?
>> We started to fail after change in Xen so I am not sure it's something
>> new in Linux.
> Right, but Linux 4.4 was entirely happy with this bug, both with and
> without having CPUID faulting imposed on it.

Oh, I see. My tests (typically) build and run the latest Linux tree (and
Xen staging) every morning.

I am trying to see what part of Linux caused the crash.

-boris



_______________________________________________
Xen-devel mailing list
Xen-devel@xxxxxxxxxxxxx
https://lists.xen.org/xen-devel