Messages in this thread Patch in this message | | | From | Wanpeng Li <> | Subject | [PATCH v2 3/3] KVM: X86: Let's harden the ipi fastpath condition edge-trigger mode | Date | Mon, 7 Jun 2021 00:19:45 -0700 |
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From: Wanpeng Li <wanpengli@tencent.com>
Let's harden the ipi fastpath condition edge-trigger mode.
Signed-off-by: Wanpeng Li <wanpengli@tencent.com> --- arch/x86/kvm/x86.c | 1 + 1 file changed, 1 insertion(+)
diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c index b594275..dbd3e9d 100644 --- a/arch/x86/kvm/x86.c +++ b/arch/x86/kvm/x86.c @@ -1922,6 +1922,7 @@ static int handle_fastpath_set_x2apic_icr_irqoff(struct kvm_vcpu *vcpu, u64 data return 1; if (((data & APIC_SHORT_MASK) == APIC_DEST_NOSHORT) && + ((data & APIC_INT_LEVELTRIG) == 0) && ((data & APIC_DEST_MASK) == APIC_DEST_PHYSICAL) && ((data & APIC_MODE_MASK) == APIC_DM_FIXED) && ((u32)(data >> 32) != X2APIC_BROADCAST)) { -- 2.7.4
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