Re: [Qemu-devel] [PATCH 3/3] i386/kvm: advertise Hyper-V frequency MSRs

2017-08-04 Thread Ladi Prosek
On Fri, Aug 4, 2017 at 3:39 PM, David Hildenbrand wrote: > On 04.08.2017 11:14, Ladi Prosek wrote: >> As of kernel commit eb82feea59d6 ("KVM: hyperv: support >> HV_X64_MSR_TSC_FREQUENCY >> and HV_X64_MSR_APIC_FREQUENCY"), KVM supports two new MSRs which are required >> for

Re: [Qemu-devel] [PATCH 3/3] i386/kvm: advertise Hyper-V frequency MSRs

2017-08-04 Thread David Hildenbrand
On 04.08.2017 11:14, Ladi Prosek wrote: > As of kernel commit eb82feea59d6 ("KVM: hyperv: support > HV_X64_MSR_TSC_FREQUENCY > and HV_X64_MSR_APIC_FREQUENCY"), KVM supports two new MSRs which are required > for nested Hyper-V to read timestamps with RDTSC + TSC page. > > This commit makes QEMU

[Qemu-devel] [PATCH 3/3] i386/kvm: advertise Hyper-V frequency MSRs

2017-08-04 Thread Ladi Prosek
As of kernel commit eb82feea59d6 ("KVM: hyperv: support HV_X64_MSR_TSC_FREQUENCY and HV_X64_MSR_APIC_FREQUENCY"), KVM supports two new MSRs which are required for nested Hyper-V to read timestamps with RDTSC + TSC page. This commit makes QEMU advertise the MSRs with CPUID.4003H:EAX[11] and