[PATCH 03/10] KVM: x86: Drop local pvclock_flags variable in kvm_guest_time_update()
From: Sean Christopherson
Date: Fri Jan 17 2025 - 19:56:52 EST
Drop the local pvclock_flags in kvm_guest_time_update(), the local variable
is immediately shoved into the per-vCPU "cache", i.e. the local variable
serves no purpose.
No functional change intended.
Signed-off-by: Sean Christopherson <seanjc@xxxxxxxxxx>
---
arch/x86/kvm/x86.c | 7 ++-----
1 file changed, 2 insertions(+), 5 deletions(-)
diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c
index ef21158ec6b2..d8ee37dd2b57 100644
--- a/arch/x86/kvm/x86.c
+++ b/arch/x86/kvm/x86.c
@@ -3178,7 +3178,6 @@ static int kvm_guest_time_update(struct kvm_vcpu *v)
struct kvm_arch *ka = &v->kvm->arch;
s64 kernel_ns;
u64 tsc_timestamp, host_tsc;
- u8 pvclock_flags;
bool use_master_clock;
#ifdef CONFIG_KVM_XEN
/*
@@ -3261,11 +3260,9 @@ static int kvm_guest_time_update(struct kvm_vcpu *v)
vcpu->last_guest_tsc = tsc_timestamp;
/* If the host uses TSC clocksource, then it is stable */
- pvclock_flags = 0;
+ vcpu->hv_clock.flags = 0;
if (use_master_clock)
- pvclock_flags |= PVCLOCK_TSC_STABLE_BIT;
-
- vcpu->hv_clock.flags = pvclock_flags;
+ vcpu->hv_clock.flags |= PVCLOCK_TSC_STABLE_BIT;
if (vcpu->pv_time.active)
kvm_setup_guest_pvclock(v, &vcpu->pv_time, 0, false);
--
2.48.0.rc2.279.g1de40edade-goog