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X-CSE-ConnectionGUID: KoQjtg0eQGK4QEUZ3YKFzA== X-CSE-MsgGUID: trUSNI2VSRCxEzX3yvJcYg== X-IronPort-AV: E=McAfee;i="6800,10657,11739"; a="75381408" X-IronPort-AV: E=Sophos;i="6.23,138,1770624000"; d="scan'208";a="75381408" Received: from fmviesa008.fm.intel.com ([10.60.135.148]) by orvoesa109.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 24 Mar 2026 12:51:52 -0700 X-CSE-ConnectionGUID: lU4K3NZTS3i673fsg3OZhA== X-CSE-MsgGUID: zizVKckFR4q2TH6ISfKkQg== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.23,138,1770624000"; d="scan'208";a="221568862" Received: from guptapa-desk.jf.intel.com (HELO desk) ([10.165.239.46]) by fmviesa008-auth.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 24 Mar 2026 12:51:50 -0700 Date: Tue, 24 Mar 2026 12:51:44 -0700 From: Pawan Gupta To: bot+bpf-ci@kernel.org Cc: x86@kernel.org, jon@nutanix.com, nik.borisov@suse.com, hpa@zytor.com, jpoimboe@kernel.org, david.kaplan@amd.com, seanjc@google.com, bp@alien8.de, dave.hansen@linux.intel.com, peterz@infradead.org, ast@kernel.org, daniel@iogearbox.net, andrii@kernel.org, kpsingh@kernel.org, jolsa@kernel.org, davem@davemloft.net, david.laight.linux@gmail.com, luto@kernel.org, tglx@kernel.org, mingo@redhat.com, dsahern@kernel.org, martin.lau@linux.dev, eddyz87@gmail.com, song@kernel.org, yonghong.song@linux.dev, john.fastabend@gmail.com, sdf@fomichev.me, haoluo@google.com, pbonzini@redhat.com, corbet@lwn.net, linux-kernel@vger.kernel.org, kvm@vger.kernel.org, asit.k.mallick@intel.com, tao1.zhang@intel.com, bpf@vger.kernel.org, netdev@vger.kernel.org, linux-doc@vger.kernel.org, martin.lau@kernel.org, clm@meta.com, ihor.solodrai@linux.dev Subject: Re: [PATCH v8 07/10] x86/vmscape: Use static_call() for predictor flush Message-ID: <20260324195144.c6gaxewnyojsev2q@desk> References: <20260324-vmscape-bhb-v8-7-68bb524b3ab9@linux.intel.com> <901294cad0355c079f343400e594daf91c8c07f0ad0ef41064c746d96e8907bd@mail.kernel.org> Precedence: bulk X-Mailing-List: netdev@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <901294cad0355c079f343400e594daf91c8c07f0ad0ef41064c746d96e8907bd@mail.kernel.org> On Tue, Mar 24, 2026 at 07:09:31PM +0000, bot+bpf-ci@kernel.org wrote: > > diff --git a/arch/x86/include/asm/cpufeatures.h b/arch/x86/include/asm/cpufeatures.h > > index dbe104df339b8..b4d529dd6d305 100644 > > --- a/arch/x86/include/asm/cpufeatures.h > > +++ b/arch/x86/include/asm/cpufeatures.h > > @@ -503,7 +503,7 @@ > > #define X86_FEATURE_CLEAR_CPU_BUF_VM (21*32+13) /* Clear CPU buffers using VERW before VMRUN */ > > -#define X86_FEATURE_IBPB_EXIT_TO_USER (21*32+14) /* Use IBPB on exit-to-userspace, see VMSCAPE bug */ > > +/* Free */ > > #define X86_FEATURE_ABMC (21*32+15) /* Assignable Bandwidth Monitoring Counters */ > > Should the corresponding entry in > tools/arch/x86/include/asm/cpufeatures.h also be updated to match? No, because: "So its important not to touch the copies in tools/ when doing changes in the original kernel headers, that will be done later, when check-headers.sh inform about the change to the perf tools hackers." https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/tree/tools/include/uapi/README