From: Tom Lendacky <thomas.lendacky@amd.com>
To: Borislav Petkov <bp@alien8.de>, Brian Gerst <brgerst@gmail.com>
Cc: X86 ML <x86@kernel.org>, LKML <linux-kernel@vger.kernel.org>
Subject: Re: [PATCH] x86/CPU/AMD: Add X86_FEATURE_ZEN1
Date: Mon, 4 Dec 2023 08:36:04 -0600 [thread overview]
Message-ID: <255f23c8-5c89-47cd-ad97-7f5f0b07d645@amd.com> (raw)
In-Reply-To: <20231202124901.GBZWsnvQct4PxsUsXK@fat_crate.local>
On 12/2/23 06:49, Borislav Petkov wrote:
> From: "Borislav Petkov (AMD)" <bp@alien8.de>
> Date: Sat, 2 Dec 2023 12:50:23 +0100
>
> Add a synthetic feature flag specifically for first generation Zen
> machines. There's need to have a generic flag for all Zen generations so
> make X86_FEATURE_ZEN be that flag.
>
> Fixes: 30fa92832f40 ("x86/CPU/AMD: Add ZenX generations flags")
> Suggested-by: Brian Gerst <brgerst@gmail.com>
> Suggested-by: Tom Lendacky <thomas.lendacky@amd.com>
> Signed-off-by: Borislav Petkov (AMD) <bp@alien8.de>
> Link: https://lore.kernel.org/r/dc3835e3-0731-4230-bbb9-336bbe3d042b@amd.com
> ---
>
> - if (boot_cpu_has(X86_FEATURE_ZEN))
> + if (boot_cpu_has(X86_FEATURE_ZEN1))
> init_amd_zen(c);
Should this be renamed to init_amd_zen1(), just to avoid confusion?
Thanks,
Tom
> else if (boot_cpu_has(X86_FEATURE_ZEN2))
> init_amd_zen2(c);
next prev parent reply other threads:[~2023-12-04 14:36 UTC|newest]
Thread overview: 39+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-11-20 10:41 [PATCH 00/13] x86/CPU/AMD: Rework Zen family detection and other fun Borislav Petkov
2023-11-20 10:41 ` [PATCH 01/13] x86/CPU/AMD: Add ZenX generations flags Borislav Petkov
2023-11-29 11:22 ` [tip: x86/cpu] " tip-bot2 for Borislav Petkov (AMD)
2023-11-30 17:05 ` [PATCH 01/13] " Tom Lendacky
2023-11-30 17:13 ` Borislav Petkov
2023-11-30 17:30 ` Brian Gerst
2023-11-30 18:17 ` Tom Lendacky
2023-11-30 18:50 ` Borislav Petkov
2023-12-02 12:49 ` [PATCH] x86/CPU/AMD: Add X86_FEATURE_ZEN1 Borislav Petkov
2023-12-04 14:36 ` Tom Lendacky [this message]
2023-12-04 15:32 ` Borislav Petkov
2023-12-12 10:33 ` [tip: x86/cpu] " tip-bot2 for Borislav Petkov (AMD)
2023-11-20 10:41 ` [PATCH 02/13] x86/CPU/AMD: Carve out the erratum 1386 fix Borislav Petkov
2023-11-29 11:22 ` [tip: x86/cpu] " tip-bot2 for Borislav Petkov (AMD)
2023-11-20 10:41 ` [PATCH 03/13] x86/CPU/AMD: Move the Zen3 BTC_NO detection to the Zen3 init function Borislav Petkov
2023-11-29 11:22 ` [tip: x86/cpu] " tip-bot2 for Borislav Petkov (AMD)
2023-11-20 10:41 ` [PATCH 04/13] x86/CPU/AMD: Move erratum 1076 fix into the Zen1 " Borislav Petkov
2023-11-29 11:22 ` [tip: x86/cpu] " tip-bot2 for Borislav Petkov (AMD)
2023-11-20 10:41 ` [PATCH 05/13] x86/CPU/AMD: Call the spectral chicken in the Zen2 " Borislav Petkov
2023-11-29 11:22 ` [tip: x86/cpu] " tip-bot2 for Borislav Petkov (AMD)
2023-11-20 10:41 ` [PATCH 06/13] x86/CPU/AMD: Rename init_amd_zn() to init_amd_zen_common() Borislav Petkov
2023-11-29 11:22 ` [tip: x86/cpu] " tip-bot2 for Borislav Petkov (AMD)
2023-11-20 10:41 ` [PATCH 07/13] x86/CPU/AMD: Move Zenbleed check to the Zen2 init function Borislav Petkov
2023-11-20 12:53 ` Nikolay Borisov
2023-11-21 10:41 ` Borislav Petkov
2023-11-29 11:22 ` [tip: x86/cpu] " tip-bot2 for Borislav Petkov (AMD)
2023-11-20 10:41 ` [PATCH 08/13] x86/CPU/AMD: Move the DIV0 bug detection to the Zen1 " Borislav Petkov
2023-11-29 11:22 ` [tip: x86/cpu] " tip-bot2 for Borislav Petkov (AMD)
2023-11-20 10:41 ` [PATCH 09/13] x86/CPU/AMD: Get rid of amd_erratum_1054[] Borislav Petkov
2023-11-29 11:22 ` [tip: x86/cpu] " tip-bot2 for Borislav Petkov (AMD)
2023-11-20 10:41 ` [PATCH 10/13] x86/CPU/AMD: Get rid of amd_erratum_383[] Borislav Petkov
2023-11-29 11:22 ` [tip: x86/cpu] " tip-bot2 for Borislav Petkov (AMD)
2023-11-20 10:41 ` [PATCH 11/13] x86/CPU/AMD: Get rid of amd_erratum_400[] Borislav Petkov
2023-11-29 11:22 ` [tip: x86/cpu] " tip-bot2 for Borislav Petkov (AMD)
2023-11-20 10:41 ` [PATCH 12/13] x86/CPU/AMD: Get rid of amd_erratum_1485[] Borislav Petkov
2023-11-29 11:22 ` [tip: x86/cpu] " tip-bot2 for Borislav Petkov (AMD)
2023-11-20 10:41 ` [PATCH 13/13] x86/CPU/AMD: Drop now unused CPU erratum checking function Borislav Petkov
2023-11-29 11:22 ` [tip: x86/cpu] " tip-bot2 for Borislav Petkov (AMD)
2023-11-20 15:08 ` [PATCH 00/13] x86/CPU/AMD: Rework Zen family detection and other fun Nikolay Borisov
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