Re: [PATCH 0/3] Nested TSC handling

Avi Kivity
2011-08-10T15:40:45Z

On 08/02/2011 03:53 PM, Nadav Har'El wrote:
> The following are patches I propose for fixing the bug discovered by Bandan
> Das and discussed in the "Nested VMX - L1 hangs on running L2" thread.
>
> The first patch should fix the originally-reported bug, as explained in the
> aforementioned thread: A new x86_op read_l1_tsc() is called L1's TSC is
> needed, instead of assuming that calling kvm_read_msr() will do that
> (because this has to return L2's TSC when a nested guest is running).
>
> The second and third patches fix relatively-unimportant corner cases in
> nested VMX and nested SVM TSC handling.
>
> I'd appreciate it if the people who noticed this bug can verify that these
> patches indeed solve it for them.
>

Thanks, applied.

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