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

["Jan Beulich" <JBeulich@xxxxxxxx>]

>>> On 02.03.17 at 21:02, <andrew.cooper3@xxxxxxxxxx> 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>

Reviewed-by: Jan Beulich <jbeulich@xxxxxxxx>



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