diff options
| author | Sean Christopherson <seanjc@google.com> | 2025-02-01 04:38:26 +0300 |
|---|---|---|
| committer | Sean Christopherson <seanjc@google.com> | 2025-02-12 21:45:55 +0300 |
| commit | 847d68abf10c7dc930551318ea41ec96144b8fd6 (patch) | |
| tree | 4c7da9a3f075fd4529125818d35c568773d2da9b | |
| parent | 39d61b46adfd784f601534a6d488697bf53f2633 (diff) | |
| download | linux-847d68abf10c7dc930551318ea41ec96144b8fd6.tar.xz | |
KVM: x86: Setup Hyper-V TSC page before Xen PV clocks (during clock update)
When updating paravirtual clocks, setup the Hyper-V TSC page before
Xen PV clocks. This will allow dropping xen_pvclock_tsc_unstable in favor
of simply clearing PVCLOCK_TSC_STABLE_BIT in the reference flags.
Reviewed-by: Vitaly Kuznetsov <vkuznets@redhat.com>
Reviewed-by: Paul Durrant <paul@xen.org>
Link: https://lore.kernel.org/r/20250201013827.680235-11-seanjc@google.com
Signed-off-by: Sean Christopherson <seanjc@google.com>
| -rw-r--r-- | arch/x86/kvm/x86.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c index bdc6f449f192..eefd68f8a6f8 100644 --- a/arch/x86/kvm/x86.c +++ b/arch/x86/kvm/x86.c @@ -3280,6 +3280,8 @@ static int kvm_guest_time_update(struct kvm_vcpu *v) hv_clock.flags &= ~PVCLOCK_GUEST_STOPPED; } + kvm_hv_setup_tsc_page(v->kvm, &hv_clock); + #ifdef CONFIG_KVM_XEN if (vcpu->xen.vcpu_info_cache.active) kvm_setup_guest_pvclock(&hv_clock, v, &vcpu->xen.vcpu_info_cache, @@ -3289,7 +3291,6 @@ static int kvm_guest_time_update(struct kvm_vcpu *v) kvm_setup_guest_pvclock(&hv_clock, v, &vcpu->xen.vcpu_time_info_cache, 0, xen_pvclock_tsc_unstable); #endif - kvm_hv_setup_tsc_page(v->kvm, &hv_clock); return 0; } |