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Message-ID: <qzel6rrn6wtbnnfwqtsa2tznh2fx6f3gtrwczphvfutv5c2sev@6ywlboai7cvh>
Date: Tue, 18 Jun 2024 11:55:15 -0500
From: Maxwell Bland <mbland@...orola.com>
To: Ard Biesheuvel <ardb@...nel.org>
Cc: linux-mm@...ck.org, Catalin Marinas <catalin.marinas@....com>,
Will Deacon <will@...nel.org>, Jonathan Corbet <corbet@....net>,
Andrew Morton <akpm@...ux-foundation.org>,
Mark Rutland <mark.rutland@....com>,
Christophe Leroy <christophe.leroy@...roup.eu>,
Alexandre Ghiti <alexghiti@...osinc.com>,
linux-arm-kernel@...ts.infradead.org, linux-doc@...r.kernel.org,
linux-kernel@...r.kernel.org
Subject: Re: [PATCH v4 2/5] arm64: non leaf ptdump support
On Tue, Jun 18, 2024 at 04:59:22PM GMT, Ard Biesheuvel wrote:
> On Tue, 18 Jun 2024 at 16:40, Maxwell Bland <mbland@...orola.com> wrote:
> > @@ -105,11 +106,6 @@ static const struct prot_bits pte_bits[] = {
> > .val = PTE_CONT,
> > .set = "CON",
> > .clear = " ",
> > - }, {
> > - .mask = PTE_TABLE_BIT,
> > - .val = PTE_TABLE_BIT,
> > - .set = " ",
> > - .clear = "BLK",
> > }, {
> > .mask = PTE_UXN,
> > .val = PTE_UXN,
> This table will need to distinguish between table and block entries.
>
> I suspect that the distinction pte_bits <-> pxd_bits is not so useful
> here. It would be better to have tbl_bits[], with pointers to it in
> the pg_level array, where the PTE level one is set to NULL.
Nice, thanks! Adding now. I'll slate a v5 release for next monday.
Maxwell
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