Re: [BISECTED] KVM error with 5.0-rc

From: Sean Christopherson
Date: Mon Jan 14 2019 - 15:07:43 EST


On Mon, Jan 14, 2019 at 08:17:10PM +0100, Harald Arnesen wrote:
> Sean Christopherson [14.01.2019 19:33]:
>
> > On Mon, Jan 14, 2019 at 06:04:27PM +0100, Harald Arnesen wrote:
> >> Qemu with KVM acceleration fails with kernel 5.0-rc1 and 5.0-rc2.
> >> It works fine with 4.20.
>
> > Can you test the attached patch? Found a bug when re-inspecting the
> > guilty commit, the wrong VMCS field is being modifying when applying an
> > errata to disable VM_ENTRY_LOAD_IA32_PERF_GLOBAL_CTRL. Your CPU is
> > listed as one of the models affected by the errata. Compile tested only.
>
> Yes, this patch fixes the error.

Awesome, thanks!

>
> Feel free to add a "Tested-by: Harald Arnesen <harald@xxxxxxxxxxx>".
> --
> Hilsen Harald