We cannot hit the bug now, but future patches will expose this path. Signed-off-by: Radim Krčmář <rkrcmar@xxxxxxxxxx> --- arch/x86/kvm/lapic.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/arch/x86/kvm/lapic.c b/arch/x86/kvm/lapic.c index 0ee743c6b4f1..aae043f38548 100644 --- a/arch/x86/kvm/lapic.c +++ b/arch/x86/kvm/lapic.c @@ -602,7 +602,8 @@ static bool kvm_apic_match_logical_addr(struct kvm_lapic *apic, u32 mda) logical_id = kvm_apic_get_reg(apic, APIC_LDR); if (apic_x2apic_mode(apic)) - return logical_id & mda; + return ((logical_id >> 16) == (mda >> 16)) + && (logical_id & mda & 0xffff); logical_id = GET_APIC_LOGICAL_ID(logical_id); -- 2.2.2 -- To unsubscribe from this list: send the line "unsubscribe kvm" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
