Messages in this thread | | | From | Vitaly Kuznetsov <> | Subject | Re: [PATCH] KVM: x86: Deflect unknown MSR accesses to user space | Date | Wed, 29 Jul 2020 10:23:20 +0200 |
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Jim Mattson <jmattson@google.com> writes:
> On Tue, Jul 28, 2020 at 5:41 AM Alexander Graf <graf@amazon.com> wrote: >>
...
>> While it does feel a bit overengineered, it would solve the problem that >> we're turning in-KVM handled MSRs into an ABI. > > It seems unlikely that userspace is going to know what to do with a > large number of MSRs. I suspect that a small enumerated list will > suffice.
The list can also be 'wildcarded', i.e. { u32 index; u32 mask; ... }
to make it really short.
-- Vitaly
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