diff options
| author | Jim Mattson <jmattson@google.com> | 2020-05-08 23:36:43 +0300 |
|---|---|---|
| committer | Paolo Bonzini <pbonzini@redhat.com> | 2020-05-15 19:26:26 +0300 |
| commit | 93dff2fed2fb4a513196b7df05742c6fcdfd5178 (patch) | |
| tree | 752131d4fa0b06cc34efef6e037f3122e2684059 /arch/x86/kvm/irq.c | |
| parent | ada0098df6569b7f9e9495beb0f1e35718895aa0 (diff) | |
| download | linux-93dff2fed2fb4a513196b7df05742c6fcdfd5178.tar.xz | |
KVM: nVMX: Migrate the VMX-preemption timer
The hrtimer used to emulate the VMX-preemption timer must be pinned to
the same logical processor as the vCPU thread to be interrupted if we
want to have any hope of adhering to the architectural specification
of the VMX-preemption timer. Even with this change, the emulated
VMX-preemption timer VM-exit occasionally arrives too late.
Signed-off-by: Jim Mattson <jmattson@google.com>
Reviewed-by: Peter Shier <pshier@google.com>
Reviewed-by: Oliver Upton <oupton@google.com>
Message-Id: <20200508203643.85477-4-jmattson@google.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Diffstat (limited to 'arch/x86/kvm/irq.c')
| -rw-r--r-- | arch/x86/kvm/irq.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/arch/x86/kvm/irq.c b/arch/x86/kvm/irq.c index e330e7d125f7..54f7ea68083b 100644 --- a/arch/x86/kvm/irq.c +++ b/arch/x86/kvm/irq.c @@ -159,6 +159,8 @@ void __kvm_migrate_timers(struct kvm_vcpu *vcpu) { __kvm_migrate_apic_timer(vcpu); __kvm_migrate_pit_timer(vcpu); + if (kvm_x86_ops.migrate_timers) + kvm_x86_ops.migrate_timers(vcpu); } bool kvm_arch_irqfd_allowed(struct kvm *kvm, struct kvm_irqfd *args) |