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Re: XEN_SYSCTL_cpu_policy_hvm_default truncates leaf count
- To: Olaf Hering <olaf@xxxxxxxxx>
- From: Andrew Cooper <andrew.cooper3@xxxxxxxxxx>
- Date: Thu, 1 Jul 2021 13:35:20 +0100
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- Delivery-date: Thu, 01 Jul 2021 12:35:43 +0000
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On 01/07/2021 12:36, Olaf Hering wrote:
> Am Thu, 1 Jul 2021 12:19:24 +0100
> schrieb Andrew Cooper <andrew.cooper3@xxxxxxxxxx>:
>
>> This *ought* to be "grab default, edit a few details, send back to
>> Xen". Where is the 51 leaves coming in? Do you have cpuid= lines in
>> the xl cfg file?
> No cpuid= or anything in domU.cfg or Xen cmdline.
> If I understand x86_cpuid_copy_to_buffer correctly, it copies all of
> basic+extd and viridian+xen leaves, which is apparently more than 31.
It will copy the subset based on things like max_leaf, etc.
Can you grab xen-cpuid -p from this system please?
~Andrew
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