On 15 March 2017 at 14:06, Andrew Jones <[email protected]> wrote:
> On Wed, Mar 15, 2017 at 02:36:45PM +0100, Christoffer Dall wrote:
>> > If QEMU wants to know
>> > whether or not the host it's running on is heterogeneous, then
>> > it can just query sysfs, rather than ask KVM.
>> >
>>
>> Can it?  Is this information available in a reliable way from userspace?
>
> I don't know much (anything) about it, but, afaict, yes. See
> https://lkml.org/lkml/2017/1/19/380

AFAICT that won't work if the CPU you're trying to
look at the ID registers for happens to be offline at
the time you're looking at it.

thanks
-- PMM
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