From: "Upadhyay, Neeraj" <neeraj.upadhyay@amd.com>
To: syzbot ci <syzbot+ci3162984bece220f0@syzkaller.appspotmail.com>,
bp@alien8.de, david.kaplan@amd.com, huibo.wang@amd.com,
kvm@vger.kernel.org, linux-kernel@vger.kernel.org,
naveen.rao@amd.com, nikunj@amd.com, pbonzini@redhat.com,
santosh.shukla@amd.com, seanjc@google.com,
suravee.suthikulpanit@amd.com, thomas.lendacky@amd.com,
tiala@microsoft.com, vasant.hegde@amd.com
Cc: syzbot@lists.linux.dev, syzkaller-bugs@googlegroups.com
Subject: Re: [syzbot ci] Re: AMD: Add Secure AVIC KVM Support
Date: Tue, 23 Sep 2025 15:47:30 +0530 [thread overview]
Message-ID: <aefdae17-d5ad-4749-8b7b-e253d68f86cc@amd.com> (raw)
In-Reply-To: <68d27033.a70a0220.1b52b.02a8.GAE@google.com>
On 9/23/2025 3:32 PM, syzbot ci wrote:
> syzbot ci has tested the following series
>
> [v2] AMD: Add Secure AVIC KVM Support
> https://lore.kernel.org/all/20250923050317.205482-1-Neeraj.Upadhyay@amd.com
> * [RFC PATCH v2 01/17] KVM: x86/lapic: Differentiate protected APIC interrupt mechanisms
> * [RFC PATCH v2 02/17] x86/cpufeatures: Add Secure AVIC CPU feature
> * [RFC PATCH v2 03/17] KVM: SVM: Add support for Secure AVIC capability in KVM
> * [RFC PATCH v2 04/17] KVM: SVM: Set guest APIC protection flags for Secure AVIC
> * [RFC PATCH v2 05/17] KVM: SVM: Do not intercept SECURE_AVIC_CONTROL MSR for SAVIC guests
> * [RFC PATCH v2 06/17] KVM: SVM: Implement interrupt injection for Secure AVIC
> * [RFC PATCH v2 07/17] KVM: SVM: Add IPI Delivery Support for Secure AVIC
> * [RFC PATCH v2 08/17] KVM: SVM: Do not inject exception for Secure AVIC
> * [RFC PATCH v2 09/17] KVM: SVM: Do not intercept exceptions for Secure AVIC guests
> * [RFC PATCH v2 10/17] KVM: SVM: Set VGIF in VMSA area for Secure AVIC guests
> * [RFC PATCH v2 11/17] KVM: SVM: Enable NMI support for Secure AVIC guests
> * [RFC PATCH v2 12/17] KVM: SVM: Add VMGEXIT handler for Secure AVIC backing page
> * [RFC PATCH v2 13/17] KVM: SVM: Add IOAPIC EOI support for Secure AVIC guests
> * [RFC PATCH v2 14/17] KVM: x86/ioapic: Disable RTC EOI tracking for protected APIC guests
> * [RFC PATCH v2 15/17] KVM: SVM: Check injected timers for Secure AVIC guests
> * [RFC PATCH v2 16/17] KVM: x86/cpuid: Disable paravirt APIC features for protected APIC
> * [RFC PATCH v2 17/17] KVM: SVM: Advertise Secure AVIC support for SNP guests
>
> and found the following issue:
> general protection fault in kvm_apply_cpuid_pv_features_quirk
>
> Full report is available here:
> https://ci.syzbot.org/series/887b895e-0315-498c-99e5-966704f16fb5
>
> ***
>
> general protection fault in kvm_apply_cpuid_pv_features_quirk
>
Thanks for the report. I will update the check to below:
if (lapic_in_kernel(vcpu) && vcpu->arch.apic->guest_apic_protected)
best->eax &= ~((1 << KVM_FEATURE_PV_EOI) |
(1 << KVM_FEATURE_PV_SEND_IPI));
- Neeraj
prev parent reply other threads:[~2025-09-23 10:17 UTC|newest]
Thread overview: 32+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-09-23 5:03 [RFC PATCH v2 00/17] AMD: Add Secure AVIC KVM Support Neeraj Upadhyay
2025-09-23 5:03 ` [RFC PATCH v2 01/17] KVM: x86/lapic: Differentiate protected APIC interrupt mechanisms Neeraj Upadhyay
2025-09-23 5:03 ` [RFC PATCH v2 02/17] x86/cpufeatures: Add Secure AVIC CPU feature Neeraj Upadhyay
2025-09-23 5:03 ` [RFC PATCH v2 03/17] KVM: SVM: Add support for Secure AVIC capability in KVM Neeraj Upadhyay
2025-09-23 5:03 ` [RFC PATCH v2 04/17] KVM: SVM: Set guest APIC protection flags for Secure AVIC Neeraj Upadhyay
2025-09-23 5:03 ` [RFC PATCH v2 05/17] KVM: SVM: Do not intercept SECURE_AVIC_CONTROL MSR for SAVIC guests Neeraj Upadhyay
2025-09-23 13:55 ` Tom Lendacky
2025-09-25 5:16 ` Upadhyay, Neeraj
2025-09-25 13:54 ` Tom Lendacky
2025-09-23 5:03 ` [RFC PATCH v2 06/17] KVM: SVM: Implement interrupt injection for Secure AVIC Neeraj Upadhyay
2025-09-23 14:47 ` Tom Lendacky
2025-09-23 5:03 ` [RFC PATCH v2 07/17] KVM: SVM: Add IPI Delivery Support " Neeraj Upadhyay
2025-09-23 5:03 ` [RFC PATCH v2 08/17] KVM: SVM: Do not inject exception " Neeraj Upadhyay
2025-09-23 15:00 ` Tom Lendacky
2025-09-23 5:03 ` [RFC PATCH v2 09/17] KVM: SVM: Do not intercept exceptions for Secure AVIC guests Neeraj Upadhyay
2025-09-23 15:15 ` Tom Lendacky
2025-09-23 5:03 ` [RFC PATCH v2 10/17] KVM: SVM: Set VGIF in VMSA area " Neeraj Upadhyay
2025-09-23 15:16 ` Tom Lendacky
2025-09-23 5:03 ` [RFC PATCH v2 11/17] KVM: SVM: Enable NMI support " Neeraj Upadhyay
2025-09-23 15:25 ` Tom Lendacky
2025-09-23 5:03 ` [RFC PATCH v2 12/17] KVM: SVM: Add VMGEXIT handler for Secure AVIC backing page Neeraj Upadhyay
2025-09-23 16:02 ` Tom Lendacky
2025-09-23 5:03 ` [RFC PATCH v2 13/17] KVM: SVM: Add IOAPIC EOI support for Secure AVIC guests Neeraj Upadhyay
2025-09-23 16:15 ` Tom Lendacky
2025-09-23 5:03 ` [RFC PATCH v2 14/17] KVM: x86/ioapic: Disable RTC EOI tracking for protected APIC guests Neeraj Upadhyay
2025-09-23 16:23 ` Tom Lendacky
2025-09-23 5:03 ` [RFC PATCH v2 15/17] KVM: SVM: Check injected timers for Secure AVIC guests Neeraj Upadhyay
2025-09-23 16:32 ` Tom Lendacky
2025-09-23 5:03 ` [RFC PATCH v2 16/17] KVM: x86/cpuid: Disable paravirt APIC features for protected APIC Neeraj Upadhyay
2025-09-23 5:03 ` [RFC PATCH v2 17/17] KVM: SVM: Advertise Secure AVIC support for SNP guests Neeraj Upadhyay
2025-09-23 10:02 ` [syzbot ci] Re: AMD: Add Secure AVIC KVM Support syzbot ci
2025-09-23 10:17 ` Upadhyay, Neeraj [this message]
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