Re: [PATCH RFC 2/2] KVM: x86/vPMU: ignore access to LBR-related MSRs

[Peter Zijlstra]

On Wed, Dec 06, 2017 at 02:43:03PM +0300, Jan Dakinevich wrote:
> Windows Server 2016 Essentials (for yet unknown reason) attempts to
> access MSR_LBR_TOS and other LBR-related registers at startup.  These
> are not currently hadled by KVM so the guest gets #GP and crashes.

Shiny feature :-)