On 12/13/21 15:19, Sasha Levin wrote:
From: Paolo Bonzini pbonzini@redhat.com
[ Upstream commit e90e51d5f01d2baae5dcce280866bbb96816e978 ]
There is nothing to synchronize if APICv is disabled, since neither other vCPUs nor assigned devices can set PIR.ON.
Signed-off-by: Paolo Bonzini pbonzini@redhat.com Signed-off-by: Sasha Levin sashal@kernel.org
arch/x86/kvm/vmx/vmx.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/arch/x86/kvm/vmx/vmx.c b/arch/x86/kvm/vmx/vmx.c index dacdf2395f01a..4e212f04268bb 100644 --- a/arch/x86/kvm/vmx/vmx.c +++ b/arch/x86/kvm/vmx/vmx.c @@ -7776,10 +7776,10 @@ static __init int hardware_setup(void) ple_window_shrink = 0; }
- if (!cpu_has_vmx_apicv()) {
- if (!cpu_has_vmx_apicv()) enable_apicv = 0;
- if (!enable_apicv) vmx_x86_ops.sync_pir_to_irr = NULL;
- }
if (cpu_has_vmx_tsc_scaling()) { kvm_has_tsc_control = true;
Acked-by: Paolo Bonzini pbonzini@redhat.com