Messages in this thread | | | Date | Tue, 26 May 2015 09:22:40 -0400 | From | Luiz Capitulino <> | Subject | Re: [PATCH v2] KVM: x86: zero kvmclock_offset when vcpu0 initializes kvmclock system MSR |
| |
On Sat, 23 May 2015 17:06:29 -0300 Marcelo Tosatti <mtosatti@redhat.com> wrote:
> Initialize kvmclock base, on kvmclock system MSR write time, > so that the guest sees kvmclock counting from zero. > > This matches baremetal behaviour when kvmclock in guest > sets sched clock stable. > > Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
Tested-by: Luiz Capitulino <lcapitulino@redhat.com>
> > diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c > index cc2c759..ea40d24 100644 > --- a/arch/x86/kvm/x86.c > +++ b/arch/x86/kvm/x86.c > @@ -2188,6 +2188,8 @@ int kvm_set_msr_common(struct kvm_vcpu *vcpu, struct msr_data *msr_info) > &vcpu->requests); > > ka->boot_vcpu_runs_old_kvmclock = tmp; > + > + ka->kvmclock_offset = -get_kernel_ns(); > } > > vcpu->arch.time = data; > -- > To unsubscribe from this list: send the line "unsubscribe linux-kernel" in > the body of a message to majordomo@vger.kernel.org > More majordomo info at http://vger.kernel.org/majordomo-info.html > Please read the FAQ at http://www.tux.org/lkml/ >
| |