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From: Ingo Molnar <mingo@kernel.org>
To: Ard Biesheuvel <ardb+git@google.com>
Cc: linux-kernel@vger.kernel.org, x86@kernel.org,
	Ard Biesheuvel <ardb@kernel.org>,
	Linus Torvalds <torvalds@linux-foundation.org>,
	Brian Gerst <brgerst@gmail.com>
Subject: Re: [PATCH v3 3/7] x86/asm-offsets: Export struct cpuinfo_x86 layout for asm use
Date: Thu, 15 May 2025 09:10:04 +0200	[thread overview]
Message-ID: <aCWTTEsEsv3NRmgd@gmail.com> (raw)
In-Reply-To: <20250514104242.1275040-12-ardb+git@google.com>


* Ard Biesheuvel <ardb+git@google.com> wrote:

> From: Ard Biesheuvel <ardb@kernel.org>
> 
> Expose struct cpuinfo_x86 via asm-offsets for x86_64 too so that it will
> be possible to set CPU capabilities from asm code.

Note that this title and changelog is slightly inaccurate: we don't 
really expose 'struct cpuinfo_x86', only certain fields of it. Most of 
the fields are not exported, only those that are used (or will be used) 
by asm code.

I fixed up the changelog.

Thanks,

	Ingo

  reply	other threads:[~2025-05-15  7:10 UTC|newest]

Thread overview: 36+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2025-05-14 10:42 [PATCH v3 0/7] x86: Robustify pgtable_l5_enabled() Ard Biesheuvel
2025-05-14 10:42 ` [PATCH v3 1/7] x86/cpu: Use a new feature flag for 5 level paging Ard Biesheuvel
2025-05-15  7:06   ` Ingo Molnar
2025-05-15  7:45   ` Ingo Molnar
2025-05-15  8:07     ` Kirill A. Shutemov
2025-05-15  8:22       ` Ingo Molnar
2025-05-15 10:12     ` Ard Biesheuvel
2025-05-15 23:24       ` Sean Christopherson
2025-05-16  8:31         ` Ard Biesheuvel
2025-05-15  9:51   ` Borislav Petkov
2025-05-15 10:17     ` Ard Biesheuvel
2025-05-15 10:39       ` Borislav Petkov
2025-05-15 10:57         ` Ard Biesheuvel
2025-05-15 13:11   ` Borislav Petkov
2025-05-15 13:33     ` Ard Biesheuvel
2025-05-17 16:59       ` David Laight
2025-05-15 18:20     ` Shivank Garg
2025-05-15 19:11       ` Borislav Petkov
2025-05-16  9:17         ` Kirill A. Shutemov
2025-05-14 10:42 ` [PATCH v3 2/7] x86/cpu: Allow caps to be set arbitrarily early Ard Biesheuvel
2025-05-15  6:56   ` Ingo Molnar
2025-05-15  7:50     ` Ingo Molnar
2025-05-15  7:55     ` Kirill A. Shutemov
2025-05-15  8:18       ` Ingo Molnar
2025-05-15  9:45         ` Ard Biesheuvel
2025-05-15 12:08           ` Ingo Molnar
2025-05-14 10:42 ` [PATCH v3 3/7] x86/asm-offsets: Export struct cpuinfo_x86 layout for asm use Ard Biesheuvel
2025-05-15  7:10   ` Ingo Molnar [this message]
2025-05-15  7:58   ` [tip: x86/core] x86/asm-offsets: Export certain 'struct cpuinfo_x86' fields for 64-bit asm use too tip-bot2 for Ard Biesheuvel
2025-05-14 10:42 ` [PATCH v3 4/7] x86/boot: Set 5-level paging CPU cap before entering C code Ard Biesheuvel
2025-05-15  8:00   ` Kirill A. Shutemov
2025-05-15  9:43     ` Ard Biesheuvel
2025-05-15 11:05       ` Kirill A. Shutemov
2025-05-14 10:42 ` [PATCH v3 5/7] x86/boot: Drop the early variant of pgtable_l5_enabled() Ard Biesheuvel
2025-05-14 10:42 ` [PATCH v3 6/7] x86/boot: Drop 5-level paging related variables and early updates Ard Biesheuvel
2025-05-14 10:42 ` [PATCH v3 7/7] x86/cpu: Make CPU capability overrides __ro_after_init Ard Biesheuvel

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