From: Mark Brown <broonie@kernel.org>
To: Joey Gouly <joey.gouly@arm.com>
Cc: "Catalin Marinas" <catalin.marinas@arm.com>,
"Andrew Morton" <akpm@linux-foundation.org>,
"Lennart Poettering" <lennart@poettering.net>,
"Zbigniew Jędrzejewski-Szmek" <zbyszek@in.waw.pl>,
"Alexander Viro" <viro@zeniv.linux.org.uk>,
"Kees Cook" <keescook@chromium.org>,
"Szabolcs Nagy" <szabolcs.nagy@arm.com>,
"Jeremy Linton" <jeremy.linton@arm.com>,
"Topi Miettinen" <toiwoton@gmail.com>,
linux-mm@kvack.org, linux-arm-kernel@lists.infradead.org,
linux-kernel@vger.kernel.org,
linux-abi-devel@lists.sourceforge.net, nd@arm.com,
shuah@kernel.org
Subject: Re: [PATCH v1 2/2] kselftest: vm: add tests for memory-deny-write-execute
Date: Wed, 9 Nov 2022 13:33:55 +0000 [thread overview]
Message-ID: <Y2usQ6HjvwDEisCY@sirena.org.uk> (raw)
In-Reply-To: <20221108173303.GA53007@e124191.cambridge.arm.com>
[-- Attachment #1: Type: text/plain, Size: 773 bytes --]
On Tue, Nov 08, 2022 at 05:33:03PM +0000, Joey Gouly wrote:
> On Fri, Oct 28, 2022 at 06:03:18PM +0100, Mark Brown wrote:
> > On Wed, Oct 26, 2022 at 04:04:57PM +0100, Joey Gouly wrote:
> > > +#ifdef __aarch64__
> > > +#define PROT_BTI 0x10 /* BTI guarded page */
> > > +#endif
> > We should get this from the kernel headers shouldn't we? We generally
> > rely on things getting pulled in from there rather than locally
> > defining.
> I believe the mman.h included is from the toolchain, not the kernel's uapi headers.
> The toolchain I was using didn't have PROT_BTI defined in its mman.h
I'd expect that whatever we're doing in the build process ought to be
overriding the default headers provided by the toolchain, that's kind of
the point here...
[-- Attachment #2: signature.asc --]
[-- Type: application/pgp-signature, Size: 488 bytes --]
next prev parent reply other threads:[~2022-11-09 13:35 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-10-26 15:04 [PATCH v1 0/2] mm: In-kernel support for memory-deny-write-execute (MDWE) Joey Gouly
2022-10-26 15:04 ` [PATCH v1 1/2] mm: Implement memory-deny-write-execute as a prctl Joey Gouly
2022-10-28 18:51 ` Kees Cook
2022-11-10 11:27 ` Joey Gouly
2022-11-10 12:03 ` Catalin Marinas
2022-11-12 6:11 ` Topi Miettinen
2022-11-15 15:35 ` Catalin Marinas
2022-11-15 19:31 ` Topi Miettinen
2022-10-26 15:04 ` [PATCH v1 2/2] kselftest: vm: add tests for memory-deny-write-execute Joey Gouly
2022-10-28 17:03 ` Mark Brown
2022-11-08 17:33 ` Joey Gouly
2022-11-09 13:33 ` Mark Brown [this message]
2022-10-28 17:45 ` Kees Cook
2022-10-28 20:16 ` Kees Cook
2022-11-07 12:23 ` Szabolcs Nagy
2022-10-28 20:19 ` Kees Cook
2022-11-06 19:42 ` [PATCH v1 0/2] mm: In-kernel support for memory-deny-write-execute (MDWE) Topi Miettinen
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=Y2usQ6HjvwDEisCY@sirena.org.uk \
--to=broonie@kernel.org \
--cc=akpm@linux-foundation.org \
--cc=catalin.marinas@arm.com \
--cc=jeremy.linton@arm.com \
--cc=joey.gouly@arm.com \
--cc=keescook@chromium.org \
--cc=lennart@poettering.net \
--cc=linux-abi-devel@lists.sourceforge.net \
--cc=linux-arm-kernel@lists.infradead.org \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-mm@kvack.org \
--cc=nd@arm.com \
--cc=shuah@kernel.org \
--cc=szabolcs.nagy@arm.com \
--cc=toiwoton@gmail.com \
--cc=viro@zeniv.linux.org.uk \
--cc=zbyszek@in.waw.pl \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox