Commit 8a395363 authored by Radim Krčmář's avatar Radim Krčmář Committed by Paolo Bonzini

KVM: x86: fix x2apic logical address matching

We cannot hit the bug now, but future patches will expose this path.
Signed-off-by: default avatarRadim Krčmář <rkrcmar@redhat.com>
Signed-off-by: default avatarPaolo Bonzini <pbonzini@redhat.com>
parent 3697f302
...@@ -599,7 +599,8 @@ static bool kvm_apic_match_logical_addr(struct kvm_lapic *apic, u32 mda) ...@@ -599,7 +599,8 @@ static bool kvm_apic_match_logical_addr(struct kvm_lapic *apic, u32 mda)
logical_id = kvm_apic_get_reg(apic, APIC_LDR); logical_id = kvm_apic_get_reg(apic, APIC_LDR);
if (apic_x2apic_mode(apic)) if (apic_x2apic_mode(apic))
return (logical_id & mda) != 0; return ((logical_id >> 16) == (mda >> 16))
&& (logical_id & mda & 0xffff) != 0;
logical_id = GET_APIC_LOGICAL_ID(logical_id); logical_id = GET_APIC_LOGICAL_ID(logical_id);
......
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