Syzbot CI

Subject	VMSCAPE optimization for BHI variant
Author	pawan.kumar.gupta@linux.intel.com
Date	2026-04-23 06:14:59 +0000 UTC
Version
Cc	aliceryhl@google.com andrii@kernel.org ardb@kernel.org asit.k.mallick@intel.com ast@kernel.org bp@alien8.de bpf@vger.kernel.org corbet@lwn.net daniel@iogearbox.net dave.hansen@linux.intel.com davem@davemloft.net david.kaplan@amd.com david.laight.linux@gmail.com dsahern@kernel.org eddyz87@gmail.com haoluo@google.com hpa@zytor.com jbaron@akamai.com john.fastabend@gmail.com jolsa@kernel.org jon@nutanix.com jpoimboe@kernel.org kpsingh@kernel.org kvm@vger.kernel.org linux-doc@vger.kernel.org linux-kernel@vger.kernel.org luto@kernel.org martin.lau@linux.dev mingo@redhat.com netdev@vger.kernel.org nik.borisov@suse.com pawan.kumar.gupta@linux.intel.com pbonzini@redhat.com peterz@infradead.org rostedt@goodmis.org sdf@fomichev.me seanjc@google.com skhan@linuxfoundation.org song@kernel.org tao1.zhang@intel.com tglx@kernel.org x86@kernel.org yonghong.song@linux.dev

Subject

Author

pawan.kumar.gupta@linux.intel.com

Date

2026-04-23 06:14:59 +0000 UTC

Version

aliceryhl@google.com andrii@kernel.org ardb@kernel.org asit.k.mallick@intel.com ast@kernel.org bp@alien8.de bpf@vger.kernel.org corbet@lwn.net daniel@iogearbox.net dave.hansen@linux.intel.com davem@davemloft.net david.kaplan@amd.com david.laight.linux@gmail.com dsahern@kernel.org eddyz87@gmail.com haoluo@google.com hpa@zytor.com jbaron@akamai.com john.fastabend@gmail.com jolsa@kernel.org jon@nutanix.com jpoimboe@kernel.org kpsingh@kernel.org kvm@vger.kernel.org linux-doc@vger.kernel.org linux-kernel@vger.kernel.org luto@kernel.org martin.lau@linux.dev mingo@redhat.com netdev@vger.kernel.org nik.borisov@suse.com pawan.kumar.gupta@linux.intel.com pbonzini@redhat.com peterz@infradead.org rostedt@goodmis.org sdf@fomichev.me seanjc@google.com skhan@linuxfoundation.org song@kernel.org tao1.zhang@intel.com tglx@kernel.org x86@kernel.org yonghong.song@linux.dev

Name	Content [All]
[PATCH v11 01/12] x86/bhi: x86/vmscape: Move LFENCE out of clear_bhb_loop()	[Body]
[PATCH v11 02/12] x86/bhi: Make clear_bhb_loop() effective on newer CPUs	[Body]
[PATCH v11 03/12] x86/bhi: Rename clear_bhb_loop() to clear_bhb_loop_nofence()	[Body]
[PATCH v11 04/12] x86/vmscape: Rename x86_ibpb_exit_to_user to x86_predictor_flush_exit_to_user	[Body]
[PATCH v11 05/12] x86/vmscape: Move mitigation selection to a switch()	[Body]
[PATCH v11 06/12] x86/vmscape: Use write_ibpb() instead of indirect_branch_prediction_barrier()	[Body]
[PATCH v11 07/12] static_call: Define EXPORT_STATIC_CALL_FOR_MODULES()	[Body]
[PATCH v11 08/12] kvm: Define EXPORT_STATIC_CALL_FOR_KVM()	[Body]
[PATCH v11 09/12] x86/vmscape: Use static_call() for predictor flush	[Body]
[PATCH v11 10/12] x86/vmscape: Deploy BHB clearing mitigation	[Body]
[PATCH v11 11/12] x86/vmscape: Resolve conflict between attack-vectors and vmscape=force	[Body]
[PATCH v11 12/12] x86/vmscape: Add cmdline vmscape=on to override attack vector controls	[Body]

Name

Content [All]

Passed

Test	Base	Patched	Verdict
[KASAN] Build Base	028ef9c96e96197026887c0f092424679298aae8 [Config]		passed [Log]
[KASAN] Boot test: Base	028ef9c96e96197026887c0f092424679298aae8 [Config]		passed [Log]
[KASAN] Build Patched		028ef9c96e96197026887c0f092424679298aae8 [Config] [patched]	passed [Log]
[KASAN] Boot test: Patched		028ef9c96e96197026887c0f092424679298aae8 [Config] [patched]	passed [Log]
[KASAN] Fuzz	028ef9c96e96197026887c0f092424679298aae8 [Config]	028ef9c96e96197026887c0f092424679298aae8 [Config] [patched]	passed [Log] [Artifacts]