From: Daniel Sneddon <daniel.sneddon@linux.intel.com>
To: Breno Leitao <leitao@debian.org>,
bp@alien8.de, Thomas Gleixner <tglx@linutronix.de>,
Ingo Molnar <mingo@redhat.com>,
Dave Hansen <dave.hansen@linux.intel.com>,
x86@kernel.org, "H. Peter Anvin" <hpa@zytor.com>,
Peter Zijlstra <peterz@infradead.org>,
Josh Poimboeuf <jpoimboe@kernel.org>,
Pawan Gupta <pawan.kumar.gupta@linux.intel.com>
Cc: linux-kernel@vger.kernel.org
Subject: Re: [PATCH v4 10/11] x86/bugs: Remove GDS Force Kconfig option
Date: Mon, 29 Jul 2024 10:09:13 -0700 [thread overview]
Message-ID: <1d258c8a-b513-47e7-a94d-60263af8f190@linux.intel.com> (raw)
In-Reply-To: <20240729164105.554296-11-leitao@debian.org>
On 7/29/24 09:40, Breno Leitao wrote:
> Remove the MITIGATION_GDS_FORCE Kconfig option, which aggressively disables
> AVX as a mitigation for Gather Data Sampling (GDS) vulnerabilities. This
> option is not widely used by distros.
>
> While removing the Kconfig option, retain the runtime configuration
> ability through the `gather_data_sampling=force` kernel parameter. This
> allows users to still enable this aggressive mitigation if needed,
> without baking it into the kernel configuration.
>
> This change simplifies the kernel configuration while maintaining
> flexibility for runtime mitigation choices.
>
> Cc: Daniel Sneddon <daniel.sneddon@linux.intel.com>
> Suggested-by: Borislav Petkov <bp@alien8.de>
> Signed-off-by: Breno Leitao <leitao@debian.org>
LGTM. Feel free to add a Reviewed-by from me.
next prev parent reply other threads:[~2024-07-29 17:09 UTC|newest]
Thread overview: 24+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-07-29 16:40 [PATCH v4 00/11] x86/bugs: Separate config for mitigations Breno Leitao
2024-07-29 16:40 ` [PATCH v4 01/11] x86/bugs: Add a separate config for MDS Breno Leitao
2024-07-30 14:15 ` [tip: x86/bugs] " tip-bot2 for Breno Leitao
2024-07-29 16:40 ` [PATCH v4 02/11] x86/bugs: Add a separate config for TAA Breno Leitao
2024-07-30 14:15 ` [tip: x86/bugs] " tip-bot2 for Breno Leitao
2024-07-29 16:40 ` [PATCH v4 03/11] x86/bugs: Add a separate config for MMIO Stable Data Breno Leitao
2024-07-30 14:15 ` [tip: x86/bugs] " tip-bot2 for Breno Leitao
2024-07-29 16:40 ` [PATCH v4 04/11] x86/bugs: Add a separate config for L1TF Breno Leitao
2024-07-30 14:15 ` [tip: x86/bugs] " tip-bot2 for Breno Leitao
2024-07-29 16:40 ` [PATCH v4 05/11] x86/bugs: Add a separate config for RETBLEED Breno Leitao
2024-07-30 14:15 ` [tip: x86/bugs] " tip-bot2 for Breno Leitao
2024-07-29 16:40 ` [PATCH v4 06/11] x86/bugs: Add a separate config for Spectre v1 Breno Leitao
2024-07-30 14:15 ` [tip: x86/bugs] " tip-bot2 for Breno Leitao
2024-07-29 16:40 ` [PATCH v4 07/11] x86/bugs: Add a separate config for SRBDS Breno Leitao
2024-07-30 14:15 ` [tip: x86/bugs] " tip-bot2 for Breno Leitao
2024-07-29 16:40 ` [PATCH v4 08/11] x86/bugs: Add a separate config for Spectre V2 Breno Leitao
2024-07-30 14:15 ` [tip: x86/bugs] " tip-bot2 for Breno Leitao
2024-07-29 16:40 ` [PATCH v4 09/11] x86/bugs: Add a separate config for SSB Breno Leitao
2024-07-30 14:15 ` [tip: x86/bugs] " tip-bot2 for Breno Leitao
2024-07-29 16:40 ` [PATCH v4 10/11] x86/bugs: Remove GDS Force Kconfig option Breno Leitao
2024-07-29 17:09 ` Daniel Sneddon [this message]
2024-07-30 14:15 ` [tip: x86/bugs] " tip-bot2 for Breno Leitao
2024-07-29 16:40 ` [PATCH v4 11/11] x86/bugs: Add a separate config for GDS Breno Leitao
2024-07-30 14:15 ` [tip: x86/bugs] " tip-bot2 for Breno Leitao
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