Re: FSGSBASE causing panic on 5.9-rc1

[Paolo Bonzini]

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