On 12/13/21 15:20, 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 5b7664d51dc2b..dff8ab5a53280 100644 --- a/arch/x86/kvm/vmx/vmx.c +++ b/arch/x86/kvm/vmx/vmx.c @@ -7814,10 +7814,10 @@ 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;
NACK - the patch is only okay to backport for 5.15
Paolo