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Re: [Xen-devel] [PATCH] x86/cpuid: Fix booting on AMD Phenom 6-core platform



On 03/03/17 11:48, Andrew Cooper wrote:
> On 03/03/17 10:47, Sander Eikelenboom wrote:
>> On 03/03/17 11:40, Andrew Cooper wrote:
>>> On 02/03/17 20:02, Andrew Cooper wrote:
>>>> c/s 5cecf60f4 "x86/cpuid: Handle leaf 0x1 in guest_cpuid()" causes Linux 
>>>> 4.10
>>>> to crash during boot.
>>>>
>>>> It turns out to be because of the reported apic_id, which was altered to be
>>>> more consistent across guests.  Revert back to the previous behaviour, by
>>>> limiting the apic_id adjustment to HVM guests only.  Whomever gets to fixes
>>>> topology representation is going to have a lot of fun with non-power-of-2 
>>>> AMD
>>>> boxes.
>>>>
>>>> Reported-by: Sander Eikelenboom <linux@xxxxxxxxxxxxxx>
>>>> Signed-off-by: Andrew Cooper <andrew.cooper3@xxxxxxxxxx>
>>> Sorry I forgot to CC you this.  (I keep forgetting that git doesn't
>>> understand Reported-by when collecting its CC list.)
>>>
>>> Would you mind double checking this patch please?
>> Sure (but it will take till somewhere this evening CET though).
> 
> No problem.  Thanks.
> 
> ~Andrew
> 
Hi Andrew,

Just tested and it works fine.
Thanks again !

--
Sander

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