KVM: VMX: optimize APIC ID read with APICv

The register is in hardware-compatible format now, so there is not need
to intercept.

Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Radim Krčmář <rkrcmar@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

1 files changed, 0 insertions, 3 deletions

diff --git a/arch/x86/kvm/vmx.c b/arch/x86/kvm/vmx.c
index 729e5f689097..7bdd6b1a2373 100644
--- a/arch/x86/kvm/vmx.c
+++ b/arch/x86/kvm/vmx.c
@@ -6461,9 +6461,6 @@ static __init int hardware_setup(void)
         for (msr = 0x800; msr <= 0x8ff; msr++)
                 vmx_disable_intercept_msr_read_x2apic(msr);
 
-        /* According SDM, in x2apic mode, the whole id reg is used.  But in
-         * KVM, it only use the highest eight bits. Need to intercept it */
-        vmx_enable_intercept_msr_read_x2apic(0x802);
         /* TMCCT */
         vmx_enable_intercept_msr_read_x2apic(0x839);
         /* TPR */