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KVM: VMX: clear vmx_x86_ops.sync_pir_to_irr if APICv is disabled

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[ Upstream commit e90e51d5f0 ]

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>
This commit is contained in:
Paolo Bonzini 2021-11-30 07:36:41 -05:00 committed by Greg Kroah-Hartman
parent efccff32de
commit 6890c75c14
1 changed files with 2 additions and 2 deletions
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4
arch/x86/kvm/vmx/vmx.c
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@ -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;