From: "Naveen N Rao (AMD)" <naveen@kernel.org>
To: Sean Christopherson <seanjc@google.com>, Borislav Petkov <bp@alien8.de>
Cc: <kvm@vger.kernel.org>, <linux-kernel@vger.kernel.org>,
Paolo Bonzini <pbonzini@redhat.com>,
Nikunj A Dadhania <nikunj@amd.com>,
Tom Lendacky <thomas.lendacky@amd.com>,
Neeraj Upadhyay <neeraj.upadhyay@amd.com>,
Tianyu Lan <tiala@microsoft.com>,
Dave Hansen <dave.hansen@linux.intel.com>,
Thomas Gleixner <tglx@kernel.org>
Subject: [RFC PATCH v3 14/27] KVM: SVM: Do not inhibit AVIC for SEV-SNP guests if Secure AVIC is enabled
Date: Wed, 8 Jul 2026 12:02:12 +0530 [thread overview]
Message-ID: <fb72d91bc17d6d1389e6a6bb2216d24db6f4a01c.1783490022.git.naveen@kernel.org> (raw)
In-Reply-To: <cover.1783490022.git.naveen@kernel.org>
Now that Secure AVIC mode is appropriately handled by the AVIC code, do
not inhibit APICv for SEV-SNP guests that have Secure AVIC enabled.
Signed-off-by: Naveen N Rao (AMD) <naveen@kernel.org>
---
arch/x86/kvm/svm/sev.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/arch/x86/kvm/svm/sev.c b/arch/x86/kvm/svm/sev.c
index a12e7e9f9fa1..00cb45ce145f 100644
--- a/arch/x86/kvm/svm/sev.c
+++ b/arch/x86/kvm/svm/sev.c
@@ -569,10 +569,10 @@ static int __sev_guest_init(struct kvm *kvm, struct kvm_sev_cmd *argp,
if (snp_is_secure_avic_enabled(kvm)) {
kvm->arch.apicv_has_irq_bypass = false;
to_kvm_svm(kvm)->avic_ipiv_is_not_supported = true;
+ } else {
+ kvm_set_apicv_inhibit(kvm, APICV_INHIBIT_REASON_SEV);
}
- kvm_set_apicv_inhibit(kvm, APICV_INHIBIT_REASON_SEV);
-
return 0;
e_free:
--
2.54.0
next prev parent reply other threads:[~2026-07-08 6:34 UTC|newest]
Thread overview: 42+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-07-08 6:31 [RFC PATCH v3 00/27] KVM: SVM: Add support for SEV-SNP Secure AVIC Naveen N Rao (AMD)
2026-07-08 6:31 ` [RFC PATCH v3 01/27] x86/apic: Propagate APIC_SPIV writes to hv for " Naveen N Rao (AMD)
2026-07-10 2:03 ` Borislav Petkov
2026-07-10 15:02 ` Naveen N Rao
2026-07-11 4:37 ` Borislav Petkov
2026-07-13 17:38 ` Tom Lendacky
2026-07-14 8:57 ` Naveen N Rao
2026-07-08 6:32 ` [RFC PATCH v3 02/27] x86/apic: Drop savic_eoi() in favor of native_apic_msr_eoi() " Naveen N Rao (AMD)
2026-07-13 17:43 ` Tom Lendacky
2026-07-14 9:02 ` Naveen N Rao
2026-07-08 6:32 ` [RFC PATCH v3 03/27] x86/kvm: Disable PV_SEND_IPI if Secure AVIC is enabled Naveen N Rao (AMD)
2026-07-13 17:52 ` Tom Lendacky
2026-07-14 9:42 ` Naveen N Rao
2026-07-08 6:32 ` [RFC PATCH v3 04/27] x86/apic: Use AVIC_INCOMPLETE_IPI VMGEXIT for Secure AVIC IPI handling Naveen N Rao (AMD)
2026-07-13 17:59 ` Tom Lendacky
2026-07-14 10:03 ` Naveen N Rao
2026-07-08 6:32 ` [RFC PATCH v3 05/27] x86/cpufeatures: Add Secure AVIC CPU feature Naveen N Rao (AMD)
2026-07-13 18:32 ` Tom Lendacky
2026-07-08 6:32 ` [RFC PATCH v3 06/27] KVM: SVM: Add helper to check if Secure AVIC is enabled for a guest Naveen N Rao (AMD)
2026-07-13 18:35 ` Tom Lendacky
2026-07-08 6:32 ` [RFC PATCH v3 07/27] KVM: SVM: Set guest_apic_protected if Secure AVIC is enabled Naveen N Rao (AMD)
2026-07-08 6:32 ` [RFC PATCH v3 08/27] kvm: irqfd: Have kvm_arch_has_irq_bypass() take struct kvm pointer Naveen N Rao (AMD)
2026-07-08 6:32 ` [RFC PATCH v3 09/27] KVM: SVM: Disable IRQ bypass for Secure AVIC Naveen N Rao (AMD)
2026-07-08 6:32 ` [RFC PATCH v3 10/27] KVM: SVM: Add avic_ipiv_is_soft_disabled() as a wrapper around enable_ipiv Naveen N Rao (AMD)
2026-07-08 6:32 ` [RFC PATCH v3 11/27] KVM: SVM: Disable IPIv for Secure AVIC Naveen N Rao (AMD)
2026-07-08 6:32 ` [RFC PATCH v3 12/27] KVM: SVM: Short-circuit a few AVIC flows " Naveen N Rao (AMD)
2026-07-08 6:32 ` [RFC PATCH v3 13/27] KVM: SVM: Warn if we ever receive AVIC_UNACCELERATED_ACCESS #VMEXIT Naveen N Rao (AMD)
2026-07-08 6:32 ` Naveen N Rao (AMD) [this message]
2026-07-08 6:32 ` [RFC PATCH v3 15/27] KVM: SVM: Set VGIF in VMSA area for Secure AVIC guests Naveen N Rao (AMD)
2026-07-08 6:32 ` [RFC PATCH v3 16/27] KVM: SVM: Add handler for VMGEXIT Secure AVIC NAE event Naveen N Rao (AMD)
2026-07-08 6:32 ` [RFC PATCH v3 17/27] KVM: SVM: Do not intercept SECURE_AVIC_CONTROL MSR for Secure AVIC guests Naveen N Rao (AMD)
2026-07-08 6:32 ` [RFC PATCH v3 18/27] KVM: x86: Add a new kvm_x86_op protected_apic_has_injectable_intr() Naveen N Rao (AMD)
2026-07-08 6:32 ` [RFC PATCH v3 19/27] KVM: SVM: Implement kvm_x86_ops->protected_apic_has_injectable_intr() for Secure AVIC Naveen N Rao (AMD)
2026-07-08 6:32 ` [RFC PATCH v3 20/27] KVM: SVM: Implement kvm_x86_ops->protected_apic_has_interrupt() " Naveen N Rao (AMD)
2026-07-08 6:32 ` [RFC PATCH v3 21/27] KVM: SVM: Add interrupt delivery support for Secure AVIC guests Naveen N Rao (AMD)
2026-07-08 6:32 ` [RFC PATCH v3 22/27] KVM: SVM: Add support for incomplete IPI handling for Secure AVIC Naveen N Rao (AMD)
2026-07-08 6:32 ` [RFC PATCH v3 23/27] KVM: SVM: Add support for injecting NMIs for Secure AVIC guests Naveen N Rao (AMD)
2026-07-08 6:32 ` [RFC PATCH v3 24/27] KVM: SVM: Mandate use of split irqchip for Secure AVIC Naveen N Rao (AMD)
2026-07-08 6:32 ` [RFC PATCH v3 25/27] KVM: SVM: Do not inject exceptions " Naveen N Rao (AMD)
2026-07-08 6:32 ` [RFC PATCH v3 26/27] KVM: SVM: Do not intercept exceptions for Secure AVIC guests Naveen N Rao (AMD)
2026-07-08 6:32 ` [RFC PATCH v3 27/27] KVM: SVM: Advertise Secure AVIC support for SEV-SNP guests Naveen N Rao (AMD)
2026-07-08 9:20 ` [RFC PATCH v3 00/27] KVM: SVM: Add support for SEV-SNP Secure AVIC Naveen N Rao
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