From: Peter Zijlstra <peterz@infradead.org>
To: Dave Hansen <dave.hansen@intel.com>
Cc: "Kirill A. Shutemov" <kirill.shutemov@linux.intel.com>,
Borislav Petkov <bp@alien8.de>,
Alexander Shishkin <alexander.shishkin@linux.intel.com>,
Andy Lutomirski <luto@kernel.org>,
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>,
Ard Biesheuvel <ardb@kernel.org>,
"Paul E. McKenney" <paulmck@kernel.org>,
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Xin Li <xin3.li@intel.com>,
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linux-efi@vger.kernel.org
Subject: Re: [PATCH v4 03/16] x86/alternatives: Disable LASS when patching kernel alternatives
Date: Thu, 11 Jul 2024 10:16:28 +0200 [thread overview]
Message-ID: <20240711081628.GF4587@noisy.programming.kicks-ass.net> (raw)
In-Reply-To: <7bbf9cae-6392-47a4-906c-7c27b1b1223d@intel.com>
On Wed, Jul 10, 2024 at 04:05:31PM -0700, Dave Hansen wrote:
> But, I'm 100% sure that we want to distinguish a LASS-necessitated
> stac()/clac() from a SMAP-necessitated one somehow.
Yeah, if only to make it easier to understand the code.
next prev parent reply other threads:[~2024-07-11 8:16 UTC|newest]
Thread overview: 30+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-07-10 16:06 [PATCH v4 00/16] Enable Linear Address Space Separation support Alexander Shishkin
2024-07-10 16:06 ` [PATCH v4 01/16] x86/cpu: Enumerate the LASS feature bits Alexander Shishkin
2025-05-13 3:08 ` Xin Li
2024-07-10 16:06 ` [PATCH v4 02/16] x86/asm: Introduce inline memcpy and memset Alexander Shishkin
2024-07-11 8:13 ` Peter Zijlstra
2024-07-10 16:06 ` [PATCH v4 03/16] x86/alternatives: Disable LASS when patching kernel alternatives Alexander Shishkin
2024-07-10 17:18 ` Borislav Petkov
2024-07-10 22:33 ` Kirill A. Shutemov
2024-07-10 23:05 ` Dave Hansen
2024-07-11 8:16 ` Peter Zijlstra [this message]
2024-07-11 10:32 ` Kirill A. Shutemov
2024-07-11 14:03 ` Dave Hansen
2024-07-11 1:23 ` Borislav Petkov
2024-07-11 8:14 ` Peter Zijlstra
2024-07-10 16:06 ` [PATCH v4 04/16] x86/cpu: Enable LASS during CPU initialization Alexander Shishkin
2024-07-10 16:06 ` [PATCH v4 05/16] x86/cpu: Remove redundant comment during feature setup Alexander Shishkin
2024-07-10 17:21 ` Borislav Petkov
2024-07-10 16:06 ` [PATCH v4 06/16] init/main.c: Move EFI runtime service initialization to x86/cpu Alexander Shishkin
2024-07-10 16:06 ` [PATCH v4 07/16] x86/cpu: Defer CR pinning setup until after EFI initialization Alexander Shishkin
2024-07-11 8:11 ` Peter Zijlstra
2024-07-11 10:37 ` Kirill A. Shutemov
2024-07-10 16:06 ` [PATCH v4 08/16] x86/vsyscall: Reorganize the #PF emulation code Alexander Shishkin
2024-07-10 16:06 ` [PATCH v4 09/16] x86/traps: Consolidate user fixups in exc_general_protection() Alexander Shishkin
2024-07-10 16:06 ` [PATCH v4 10/16] x86/vsyscall: Add vsyscall emulation for #GP Alexander Shishkin
2024-07-10 16:06 ` [PATCH v4 11/16] x86/vsyscall: Disable LASS if vsyscall mode is set to EMULATE Alexander Shishkin
2024-07-10 16:06 ` [PATCH v4 12/16] x86/vsyscall: Document the fact that vsyscall=emulate disables LASS Alexander Shishkin
2024-07-10 16:06 ` [PATCH v4 13/16] x86/cpu: Set LASS CR4 bit as pinning sensitive Alexander Shishkin
2024-07-10 16:06 ` [PATCH v4 14/16] x86/traps: Communicate a LASS violation in #GP message Alexander Shishkin
2024-07-10 16:06 ` [PATCH v4 15/16] efi: Disable LASS around set_virtual_address_map call Alexander Shishkin
2024-07-10 16:06 ` [PATCH v4 16/16] x86/cpu: Make LAM depend on LASS Alexander Shishkin
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