Re: [Qemu-devel] [PATCH 1/2] i386/kvm: add support for Hyper-V reenlightenment MSRs

2018-03-16 Thread Vitaly Kuznetsov
Paolo Bonzini writes: > On 12/03/2018 16:12, Vitaly Kuznetsov wrote: [snip] >> @@ -2294,6 +2318,15 @@ static int kvm_get_msrs(X86CPU *cpu) >> env->msr_hv_stimer_count[(index - HV_X64_MSR_STIMER0_COUNT)/2] = >> msrs[i].data; >>

Re: [Qemu-devel] [PATCH 1/2] i386/kvm: add support for Hyper-V reenlightenment MSRs

2018-03-16 Thread Paolo Bonzini
On 12/03/2018 16:12, Vitaly Kuznetsov wrote: > KVM recently gained support for Hyper-V Reenlightenment MSRs which are > required to make KVM-on-Hyper-V enable TSC page clocksource to its guests > when INVTSC is not passed to it (and it is not passed by default in Qemu > as it effectively blocks

[Qemu-devel] [PATCH 1/2] i386/kvm: add support for Hyper-V reenlightenment MSRs

2018-03-12 Thread Vitaly Kuznetsov
KVM recently gained support for Hyper-V Reenlightenment MSRs which are required to make KVM-on-Hyper-V enable TSC page clocksource to its guests when INVTSC is not passed to it (and it is not passed by default in Qemu as it effectively blocks migration). Signed-off-by: Vitaly Kuznetsov