From: Rik van Riel <riel@surriel.com>
To: Ingo Molnar <mingo@kernel.org>
Cc: Dave Hansen <dave.hansen@linux.intel.com>,
Andy Lutomirski <luto@kernel.org>,
Peter Zijlstra <peterz@infradead.org>,
Ingo Molnar <mingo@redhat.com>, Borislav Petkov <bp@alien8.de>,
x86@kernel.org, linux-kernel@vger.kernel.org,
kernel-team@meta.com
Subject: Re: [PATCH v2] x86/mm: resize user_pcid_flush_mask for PTI / broadcast TLB flush combination
Date: Sun, 18 May 2025 12:22:17 -0400 [thread overview]
Message-ID: <5c756dce3d009470a0db0fe5a48aa0bd40be220e.camel@surriel.com> (raw)
In-Reply-To: <aCl9TUnOuWivv6Ze@gmail.com>
On Sun, 2025-05-18 at 08:25 +0200, Ingo Molnar wrote:
>
> * Rik van Riel <riel@surriel.com> wrote:
>
> > But it is perfectly happy with getting the address of the first
> > long
> > in that array, which works for both array size 1 and array size 32.
>
> Yeah. Testing is still a question: does this boot on a system with
> PCID
> && INVLPGB features, with PTI force-enabled ("pti=on" boot option)?
This version runs, and no signs of corruption with
last_global_asid up over a few hundred due to various
programs running and exiting.
--
All Rights Reversed.
next prev parent reply other threads:[~2025-05-18 16:22 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-05-16 16:33 [PATCH] x86/mm: resize user_pcid_flush_mask for PTI / broadcast TLB flush combination Rik van Riel
2025-05-17 7:59 ` Ingo Molnar
2025-05-17 21:29 ` Rik van Riel
2025-05-18 0:12 ` [PATCH v2] " Rik van Riel
2025-05-18 6:25 ` Ingo Molnar
2025-05-18 16:22 ` Rik van Riel [this message]
-- strict thread matches above, loose matches on Subject: below --
2025-05-30 21:41 Rik van Riel
2025-05-31 7:25 ` Ingo Molnar
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