lkml.org 
[lkml]   [2015]   [May]   [22]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
SubjectRe: KVM: x86: zero kvmclock_offset when vcpu0 initializes kvmclock system MSR
From
Change as described sounds good, however:

> @@ -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();
> }

Should this be ka->kvmclock_offset = -get_kernel_ns()?
kvm_guest_time_update() sets hv_clock.system_time = kernel_ns +
v->kvm->arch.kvmclock_offset, and similarly kvmclock_offset is added
to the value from get_kernel_ns() in the handler for
HV_X64_MSR_TIME_REF_COUNT.


\
 
 \ /
  Last update: 2015-05-23 00:21    [W:0.055 / U:0.124 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site