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SubjectRe: FSGSBASE causing panic on 5.9-rc1
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On 19/08/20 23:25, Andy Lutomirski wrote:
> wrmsrl(MSR_KERNEL_GS_BASE, current->thread.gsbase);
> load_gs_index(svm->host.gs);
>
> Surely that should do load_gs_index() *before* wrmsrl(). But that's
> not the problem at hand.

The wrmsrl is writing the inactive GS base so the ordering between
load_gs_index and wrmsrl(MSR_KERNEL_GS_BASE) should be irrelevant?

Paolo

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