Syzbot CI

Subject	KVM: nSVM: Optimize nSVM TLB flushes
Author	yosry@kernel.org
Date	2026-07-28 00:35:30 +0000 UTC
Version
Cc	jmattson@google.com kvm@vger.kernel.org linux-kernel@vger.kernel.org mlevitsk@redhat.com pbonzini@redhat.com seanjc@google.com stable@vger.kernel.org thomas.lendacky@amd.com vkuznets@redhat.com yosry@kernel.org

Subject

Author

yosry@kernel.org

Date

2026-07-28 00:35:30 +0000 UTC

Version

jmattson@google.com kvm@vger.kernel.org linux-kernel@vger.kernel.org mlevitsk@redhat.com pbonzini@redhat.com seanjc@google.com stable@vger.kernel.org thomas.lendacky@amd.com vkuznets@redhat.com yosry@kernel.org

Name	Content [All]
[PATCH v1 01/28] KVM: nSVM: Flush the TLB after forcefully leaving nested	[Body]
[PATCH v1 02/28] KVM: SVM: Document number of ASIDs CPUID setting	[Body]
[PATCH v1 03/28] KVM: VMX: Generalize VPID allocation to be vendor-neutral	[Body]
[PATCH v1 04/28] KVM: x86/mmu: Support specifying reserved TLB tags	[Body]
[PATCH v1 05/28] KVM: SVM: Add helpers to set/clear ASID flush in VMCB	[Body]
[PATCH v1 06/28] KVM: SVM: Fallback to flush everything if FLUSHBYASID is not available	[Body]
[PATCH v1 07/28] KVM: SVM: Duplicate pre-run ASID check for SEV and non-SEV guests	[Body]
[PATCH v1 08/28] KVM: SEV: Do ASID initialization at VMCB initialization	[Body]
[PATCH v1 09/28] KVM: SEV: Expose sev_get_asid() outside of sev.c	[Body]
[PATCH v1 10/28] KVM: SVM: Use a static ASID per vCPU	[Body]
[PATCH v1 11/28] KVM: SVM: Only flush the fallback ASID when used by a different vCPU	[Body]
[PATCH v1 12/28] KVM: nSVM: Add a placeholder ASID for L2	[Body]
[PATCH v1 13/28] KVM: x86: hyper-v: Rename kvm_hv_vcpu_purge_flush_tlb()	[Body]
[PATCH v1 14/28] KVM: x86: hyper-v: Allow puring all TLB flush FIFOs	[Body]
[PATCH v1 15/28] KVM: nSVM: Drop svm->nested.initialized	[Body]
[PATCH v1 16/28] KVM: nSVM: Flush both L1 and L2 ASIDs on KVM_REQ_TLB_FLUSH	[Body]
[PATCH v1 17/28] KVM: nSVM: Always switch VMCB before leaving guest mode	[Body]
[PATCH v1 18/28] KVM: nSVM: Split nested_svm_transition_tlb_flush() into entry/exit fns	[Body]
[PATCH v1 19/28] KVM: nSVM: Service local TLB flushes before nested transitions	[Body]
[PATCH v1 20/28] KVM: nSVM: Handle nested TLB flush requests through TLB_CONTROL	[Body]
[PATCH v1 21/28] KVM: nSVM: Flush the TLB if L1 changes L2's ASID in vmcb12	[Body]
[PATCH v1 22/28] KVM: nSVM: Do not reset TLB_CONTROL in vmcb02 on nested VM-Enter	[Body]
[PATCH v1 23/28] KVM: x86/mmu: Rename __kvm_mmu_invalidate_addr() to kvm_mmu_sync_addr()	[Body]
[PATCH v1 24/28] KVM: x86/mmu: Refactor kvm_mmu_invlpg() to allow skipping the GVA flush	[Body]
[PATCH v1 25/28] KVM: nSVM: Flush L2's ASID when emulating INVLPGA	[Body]
[PATCH v1 26/28] KVM: nSVM: Flush the ASID on nested transitions if shared by L1 and L2	[Body]
[PATCH v1 27/28] KVM: nSVM: Use different ASIDs for L1 and L2	[Body]
[PATCH v1 28/28] KVM: selftests: Add a test for nested TLB flushes	[Body]

Name

Content [All]

[PATCH v1 01/28] KVM: nSVM: Flush the TLB after forcefully leaving nested

[PATCH v1 02/28] KVM: SVM: Document number of ASIDs CPUID setting

[PATCH v1 03/28] KVM: VMX: Generalize VPID allocation to be vendor-neutral

[PATCH v1 04/28] KVM: x86/mmu: Support specifying reserved TLB tags

[PATCH v1 05/28] KVM: SVM: Add helpers to set/clear ASID flush in VMCB

[PATCH v1 06/28] KVM: SVM: Fallback to flush everything if FLUSHBYASID is not available

[PATCH v1 07/28] KVM: SVM: Duplicate pre-run ASID check for SEV and non-SEV guests

[PATCH v1 08/28] KVM: SEV: Do ASID initialization at VMCB initialization

[PATCH v1 09/28] KVM: SEV: Expose sev_get_asid() outside of sev.c

[PATCH v1 10/28] KVM: SVM: Use a static ASID per vCPU

[PATCH v1 11/28] KVM: SVM: Only flush the fallback ASID when used by a different vCPU

[PATCH v1 12/28] KVM: nSVM: Add a placeholder ASID for L2

[PATCH v1 13/28] KVM: x86: hyper-v: Rename kvm_hv_vcpu_purge_flush_tlb()

[PATCH v1 14/28] KVM: x86: hyper-v: Allow puring all TLB flush FIFOs

[PATCH v1 15/28] KVM: nSVM: Drop svm->nested.initialized

[PATCH v1 16/28] KVM: nSVM: Flush both L1 and L2 ASIDs on KVM_REQ_TLB_FLUSH

[PATCH v1 17/28] KVM: nSVM: Always switch VMCB before leaving guest mode

[PATCH v1 18/28] KVM: nSVM: Split nested_svm_transition_tlb_flush() into entry/exit fns

[PATCH v1 19/28] KVM: nSVM: Service local TLB flushes before nested transitions

[PATCH v1 20/28] KVM: nSVM: Handle nested TLB flush requests through TLB_CONTROL

[PATCH v1 21/28] KVM: nSVM: Flush the TLB if L1 changes L2's ASID in vmcb12

[PATCH v1 22/28] KVM: nSVM: Do not reset TLB_CONTROL in vmcb02 on nested VM-Enter

[PATCH v1 23/28] KVM: x86/mmu: Rename __kvm_mmu_invalidate_addr() to kvm_mmu_sync_addr()

[PATCH v1 24/28] KVM: x86/mmu: Refactor kvm_mmu_invlpg() to allow skipping the GVA flush

[PATCH v1 25/28] KVM: nSVM: Flush L2's ASID when emulating INVLPGA

[PATCH v1 26/28] KVM: nSVM: Flush the ASID on nested transitions if shared by L1 and L2

[PATCH v1 27/28] KVM: nSVM: Use different ASIDs for L1 and L2

[PATCH v1 28/28] KVM: selftests: Add a test for nested TLB flushes

Session 2026-07-28

Passed

ID (for dev)	88466505-364b-4437-a40b-5e39492ec943
Status	finished
Triaged	OK [Log] [Trajectory]
Execution Log	[Link]

Test	Base	Patched	Verdict
[KASAN] Build Base	567329869b9c75c9d3df74b35fe10af9b51c479d [Config]		passed [Log]
[KASAN] Boot test: Base	567329869b9c75c9d3df74b35fe10af9b51c479d [Config]		passed [Log]
[KASAN] Build Patched		567329869b9c75c9d3df74b35fe10af9b51c479d [Config] [patched]	passed [Log]
[KASAN] Boot test: Patched		567329869b9c75c9d3df74b35fe10af9b51c479d [Config] [patched]	passed [Log]
[KASAN] Fuzz	567329869b9c75c9d3df74b35fe10af9b51c479d [Config]	567329869b9c75c9d3df74b35fe10af9b51c479d [Config] [patched]	passed [Log] [Artifacts]

Patches (28)

Series Summary

Sessions

Session 2026-07-28