From: Nikolay Borisov <nik.borisov@suse.com>
To: Pawan Gupta <pawan.kumar.gupta@linux.intel.com>,
x86@kernel.org, David Kaplan <david.kaplan@amd.com>,
"H. Peter Anvin" <hpa@zytor.com>,
Josh Poimboeuf <jpoimboe@kernel.org>,
Sean Christopherson <seanjc@google.com>,
Paolo Bonzini <pbonzini@redhat.com>,
Borislav Petkov <bp@alien8.de>,
Dave Hansen <dave.hansen@linux.intel.com>
Cc: linux-kernel@vger.kernel.org, kvm@vger.kernel.org,
Asit Mallick <asit.k.mallick@intel.com>,
Tao Zhang <tao1.zhang@intel.com>
Subject: Re: [PATCH v4 02/11] x86/bhi: Move the BHB sequence to a macro for reuse
Date: Thu, 20 Nov 2025 18:28:51 +0200 [thread overview]
Message-ID: <f7a380bb-88fa-4dd2-ba75-977b2e22bbb0@suse.com> (raw)
In-Reply-To: <20251119-vmscape-bhb-v4-2-1adad4e69ddc@linux.intel.com>
On 11/20/25 08:18, Pawan Gupta wrote:
> In preparation to make clear_bhb_loop() work for CPUs with larger BHB, move
> the sequence to a macro. This will allow setting the depth of BHB-clearing
> easily via arguments.
>
> No functional change intended.
>
> Signed-off-by: Pawan Gupta <pawan.kumar.gupta@linux.intel.com>
Reviewed-by: Nikolay Borisov <nik.borisov@suse.com>
next prev parent reply other threads:[~2025-11-20 16:28 UTC|newest]
Thread overview: 63+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-11-20 6:17 [PATCH v4 00/11] VMSCAPE optimization for BHI variant Pawan Gupta
2025-11-20 6:17 ` [PATCH v4 01/11] x86/bhi: x86/vmscape: Move LFENCE out of clear_bhb_loop() Pawan Gupta
2025-11-20 16:15 ` Nikolay Borisov
2025-11-20 16:56 ` Pawan Gupta
2025-11-20 16:58 ` Nikolay Borisov
2025-11-20 6:18 ` [PATCH v4 02/11] x86/bhi: Move the BHB sequence to a macro for reuse Pawan Gupta
2025-11-20 16:28 ` Nikolay Borisov [this message]
2025-11-20 16:57 ` Pawan Gupta
2025-11-25 0:21 ` Pawan Gupta
2025-11-20 6:18 ` [PATCH v4 03/11] x86/bhi: Make the depth of BHB-clearing configurable Pawan Gupta
2025-11-20 17:02 ` Nikolay Borisov
2025-11-20 6:18 ` [PATCH v4 04/11] x86/bhi: Make clear_bhb_loop() effective on newer CPUs Pawan Gupta
2025-11-21 12:33 ` Nikolay Borisov
2025-11-21 16:40 ` Dave Hansen
2025-11-21 16:45 ` Nikolay Borisov
2025-11-21 16:50 ` Dave Hansen
2025-11-21 18:16 ` Pawan Gupta
2025-11-21 18:42 ` Dave Hansen
2025-11-21 21:26 ` Pawan Gupta
2025-11-21 21:36 ` Dave Hansen
2025-11-24 19:21 ` Pawan Gupta
2025-11-22 11:05 ` david laight
2025-11-24 19:31 ` Pawan Gupta
2025-11-25 11:34 ` david laight
2025-12-04 1:40 ` Pawan Gupta
2025-12-04 9:15 ` david laight
2025-12-04 21:56 ` Pawan Gupta
2025-12-05 9:21 ` david laight
2025-11-26 19:23 ` Pawan Gupta
2026-03-06 21:00 ` Jim Mattson
2026-03-06 22:32 ` Pawan Gupta
2026-03-06 22:57 ` Jim Mattson
2026-03-06 23:29 ` Pawan Gupta
2026-03-07 0:35 ` Jim Mattson
2026-03-07 1:00 ` Pawan Gupta
2026-03-07 1:10 ` Jim Mattson
2026-03-07 2:41 ` Pawan Gupta
2026-03-07 5:05 ` Jim Mattson
2026-03-09 22:29 ` Pawan Gupta
2026-03-09 23:05 ` Jim Mattson
2026-03-10 0:00 ` Pawan Gupta
2026-03-10 0:08 ` Jim Mattson
2026-03-10 0:52 ` Pawan Gupta
2025-11-20 6:18 ` [PATCH v4 05/11] x86/vmscape: Rename x86_ibpb_exit_to_user to x86_predictor_flush_exit_to_user Pawan Gupta
2025-11-20 6:19 ` [PATCH v4 06/11] x86/vmscape: Move mitigation selection to a switch() Pawan Gupta
2025-11-21 14:27 ` Nikolay Borisov
2025-11-24 23:09 ` Pawan Gupta
2025-11-25 10:19 ` Nikolay Borisov
2025-11-25 17:45 ` Pawan Gupta
2025-11-20 6:19 ` [PATCH v4 07/11] x86/vmscape: Use write_ibpb() instead of indirect_branch_prediction_barrier() Pawan Gupta
2025-11-21 12:59 ` Nikolay Borisov
2025-11-20 6:19 ` [PATCH v4 08/11] x86/vmscape: Use static_call() for predictor flush Pawan Gupta
2025-11-20 6:19 ` [PATCH v4 09/11] x86/vmscape: Deploy BHB clearing mitigation Pawan Gupta
2025-11-21 14:18 ` Nikolay Borisov
2025-11-21 18:29 ` Pawan Gupta
2025-11-21 14:23 ` Nikolay Borisov
2025-11-21 18:41 ` Pawan Gupta
2025-11-21 18:53 ` Nikolay Borisov
2025-11-21 21:29 ` Pawan Gupta
2025-11-20 6:20 ` [PATCH v4 10/11] x86/vmscape: Override conflicting attack-vector controls with =force Pawan Gupta
2025-11-21 18:04 ` Nikolay Borisov
2025-11-20 6:20 ` [PATCH v4 11/11] x86/vmscape: Add cmdline vmscape=on to override attack vector controls Pawan Gupta
2025-11-25 11:41 ` Nikolay Borisov
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