From: Kevin Cheng <chengkev@google.com>
To: seanjc@google.com, pbonzini@redhat.com
Cc: kvm@vger.kernel.org, linux-kernel@vger.kernel.org,
yosry.ahmed@linux.dev, Kevin Cheng <chengkev@google.com>
Subject: [PATCH V2 3/5] KVM: SVM: Inject #UD for INVLPGA if EFER.SVME=0
Date: Mon, 12 Jan 2026 17:45:33 +0000 [thread overview]
Message-ID: <20260112174535.3132800-4-chengkev@google.com> (raw)
In-Reply-To: <20260112174535.3132800-1-chengkev@google.com>
INVLPGA should cause a #UD when EFER.SVME is not set. Add a check to
properly inject #UD when EFER.SVME=0.
Signed-off-by: Kevin Cheng <chengkev@google.com>
---
arch/x86/kvm/svm/svm.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/arch/x86/kvm/svm/svm.c b/arch/x86/kvm/svm/svm.c
index 557c84a060fc6..92a2faff1ccc8 100644
--- a/arch/x86/kvm/svm/svm.c
+++ b/arch/x86/kvm/svm/svm.c
@@ -2306,6 +2306,9 @@ static int invlpga_interception(struct kvm_vcpu *vcpu)
gva_t gva = kvm_rax_read(vcpu);
u32 asid = kvm_rcx_read(vcpu);
+ if (nested_svm_check_permissions(vcpu))
+ return 1;
+
/* FIXME: Handle an address size prefix. */
if (!is_long_mode(vcpu))
gva = (u32)gva;
--
2.52.0.457.g6b5491de43-goog
next prev parent reply other threads:[~2026-01-12 17:45 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-01-12 17:45 [PATCH V2 0/5] Align SVM with APM defined behaviors Kevin Cheng
2026-01-12 17:45 ` [PATCH V2 1/5] KVM: SVM: Move STGI and CLGI intercept handling Kevin Cheng
2026-01-12 20:37 ` Yosry Ahmed
2026-01-15 1:39 ` Sean Christopherson
2026-01-15 16:41 ` Yosry Ahmed
2026-01-15 17:00 ` Sean Christopherson
2026-01-15 17:05 ` Yosry Ahmed
2026-01-15 17:29 ` Sean Christopherson
2026-01-22 4:59 ` Kevin Cheng
2026-01-12 17:45 ` [PATCH V2 2/5] KVM: SVM: Inject #UD for STGI if EFER.SVME=0 and SVM Lock and DEV are not available Kevin Cheng
2026-01-12 20:50 ` Yosry Ahmed
2026-01-22 5:02 ` Kevin Cheng
2026-01-12 17:45 ` Kevin Cheng [this message]
2026-01-12 20:51 ` [PATCH V2 3/5] KVM: SVM: Inject #UD for INVLPGA if EFER.SVME=0 Yosry Ahmed
2026-01-12 17:45 ` [PATCH V2 4/5] KVM: SVM: Recalc instructions intercepts when EFER.SVME is toggled Kevin Cheng
2026-01-12 17:45 ` [PATCH V2 5/5] KVM: SVM: Raise #UD if VMMCALL instruction is not intercepted Kevin Cheng
2026-01-12 20:54 ` Yosry Ahmed
2026-01-14 5:20 ` Manali Shukla
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