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Subject: Re: [PATCH v2] x86/mm: resize user_pcid_flush_mask for PTI /
 broadcast TLB flush combination
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
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Date: Sun, 18 May 2025 12:22:17 -0400
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On Sun, 2025-05-18 at 08:25 +0200, Ingo Molnar wrote:
>=20
> * Rik van Riel <riel@surriel.com> wrote:
>=20
> > But it is perfectly happy with getting the address of the first
> > long=20
> > in that array, which works for both array size 1 and array size 32.
>=20
> Yeah. Testing is still a question: does this boot on a system with
> PCID=20
> && INVLPGB features, with PTI force-enabled ("pti=3Don" 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.=20

--=20
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