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

[Andrew Cooper <andrew.cooper3@xxxxxxxxxx>]

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

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