From 4f4c09438d310c81394cf6c62f9b84dca502ef1d Mon Sep 17 00:00:00 2001 From: Suravee Suthikulpanit Date: Wed, 18 Dec 2019 11:32:59 -0500 Subject: [PATCH 0338/2944] svm: Add warning message for AVIC IPI invalid target commit 37ef0c4414c9743ba7f1af4392f0a27a99649f2a upstream. Print warning message when IPI target ID is invalid due to one of the following reasons: * In logical mode: cluster > max_cluster (64) * In physical mode: target > max_physical (512) * Address is not present in the physical or logical ID tables Signed-off-by: Suravee Suthikulpanit Signed-off-by: Paolo Bonzini Signed-off-by: WANG Siyuan Acked-by: Caspar Zhang --- arch/x86/kvm/svm.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/arch/x86/kvm/svm.c b/arch/x86/kvm/svm.c index 554fbf4..beb48df 100644 --- a/arch/x86/kvm/svm.c +++ b/arch/x86/kvm/svm.c @@ -4540,6 +4540,8 @@ static int avic_incomplete_ipi_interception(struct vcpu_svm *svm) break; } case AVIC_IPI_FAILURE_INVALID_TARGET: + WARN_ONCE(1, "Invalid IPI target: index=%u, vcpu=%d, icr=%#0x:%#0x\n", + index, svm->vcpu.vcpu_id, icrh, icrl); break; case AVIC_IPI_FAILURE_INVALID_BACKING_PAGE: WARN_ONCE(1, "Invalid backing page\n"); -- 1.8.3.1