From: Pavel Machek <pavel@ucw.cz>
To: Kristina Martsenko <kristina.martsenko@arm.com>
Cc: Mark Rutland <mark.rutland@arm.com>,
Andrew Jones <drjones@redhat.com>,
linux-kernel@vger.kernel.org,
Jacob Bramley <jacob.bramley@arm.com>,
Ard Biesheuvel <ard.biesheuvel@linaro.org>,
Marc Zyngier <marc.zyngier@arm.com>,
Catalin Marinas <catalin.marinas@arm.com>,
Adam Wallis <awallis@codeaurora.org>,
Suzuki K Poulose <suzuki.poulose@arm.com>,
Richard Henderson <richard.henderson@linaro.org>,
Christoffer Dall <christoffer.dall@arm.com>,
Will Deacon <will.deacon@arm.com>,
kvmarm@lists.cs.columbia.edu,
Cyrill Gorcunov <gorcunov@gmail.com>,
Ramana Radhakrishnan <ramana.radhakrishnan@arm.com>,
Amit Kachhap <amit.kachhap@arm.com>,
Dave P Martin <dave.martin@arm.com>,
linux-arm-kernel@lists.infradead.org,
Kees Cook <keescook@chromium.org>
Subject: Re: [PATCH v6 07/13] arm64: add basic pointer authentication support
Date: Thu, 3 Jan 2019 21:29:01 +0100 [thread overview]
Message-ID: <20190103202901.GA21564@amd> (raw)
In-Reply-To: <20181207183931.4285-8-kristina.martsenko@arm.com>
[-- Attachment #1.1: Type: text/plain, Size: 994 bytes --]
On Fri 2018-12-07 18:39:25, Kristina Martsenko wrote:
> From: Mark Rutland <mark.rutland@arm.com>
>
> This patch adds basic support for pointer authentication, allowing
> userspace to make use of APIAKey, APIBKey, APDAKey, APDBKey, and
> APGAKey. The kernel maintains key values for each process (shared by all
> threads within), which are initialised to random values at exec()
time.
...
> +/*
> + * We give each process its own keys, which are shared by all threads. The keys
> + * are inherited upon fork(), and reinitialised upon exec*().
> + */
> +struct ptrauth_keys {
> + struct ptrauth_key apia;
> + struct ptrauth_key apib;
> + struct ptrauth_key apda;
> + struct ptrauth_key apdb;
> + struct ptrauth_key apga;
> +};
intstruction_a, data_a, generic_a? Should be easier to understand than
"apdb" ...
Pavel
--
(english) http://www.livejournal.com/~pavelmachek
(cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html
[-- Attachment #1.2: Digital signature --]
[-- Type: application/pgp-signature, Size: 181 bytes --]
[-- Attachment #2: Type: text/plain, Size: 176 bytes --]
_______________________________________________
linux-arm-kernel mailing list
linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
next prev parent reply other threads:[~2019-01-03 20:29 UTC|newest]
Thread overview: 43+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-12-07 18:39 [PATCH v6 00/13] ARMv8.3 pointer authentication userspace support Kristina Martsenko
2018-12-07 18:39 ` [PATCH v6 01/13] arm64: add comments about EC exception levels Kristina Martsenko
2018-12-09 14:34 ` Richard Henderson
2018-12-07 18:39 ` [PATCH v6 02/13] arm64: add pointer authentication register bits Kristina Martsenko
2018-12-09 14:24 ` Richard Henderson
2018-12-10 19:54 ` Kristina Martsenko
2018-12-11 20:08 ` Will Deacon
2018-12-07 18:39 ` [PATCH v6 03/13] arm64/kvm: consistently handle host HCR_EL2 flags Kristina Martsenko
2018-12-08 10:31 ` Marc Zyngier
2018-12-09 14:35 ` Richard Henderson
2018-12-07 18:39 ` [PATCH v6 04/13] arm64/kvm: hide ptrauth from guests Kristina Martsenko
2018-12-08 10:32 ` Marc Zyngier
2018-12-09 14:53 ` Richard Henderson
2018-12-10 20:12 ` Kristina Martsenko
2018-12-10 20:22 ` Richard Henderson
2018-12-10 20:30 ` Kristina Martsenko
2018-12-19 15:21 ` Peter Maydell
2018-12-07 18:39 ` [PATCH v6 05/13] arm64: Don't trap host pointer auth use to EL2 Kristina Martsenko
2018-12-09 14:54 ` Richard Henderson
2018-12-07 18:39 ` [PATCH v6 06/13] arm64/cpufeature: detect pointer authentication Kristina Martsenko
2018-12-09 14:58 ` Richard Henderson
2018-12-07 18:39 ` [PATCH v6 07/13] arm64: add basic pointer authentication support Kristina Martsenko
2018-12-09 14:59 ` Richard Henderson
2019-01-03 20:29 ` Pavel Machek [this message]
2019-01-04 9:21 ` Marc Zyngier
2019-01-04 9:33 ` Pavel Machek
2019-01-04 18:02 ` Mark Rutland
2018-12-07 18:39 ` [PATCH v6 08/13] arm64: expose user PAC bit positions via ptrace Kristina Martsenko
2018-12-09 15:03 ` Richard Henderson
2018-12-09 15:41 ` Richard Henderson
2018-12-10 12:03 ` Catalin Marinas
2018-12-10 14:22 ` Richard Henderson
2018-12-10 14:29 ` Will Deacon
2018-12-10 16:09 ` Catalin Marinas
2018-12-07 18:39 ` [PATCH v6 09/13] arm64: perf: strip PAC when unwinding userspace Kristina Martsenko
2018-12-07 18:39 ` [PATCH v6 10/13] arm64: add prctl control for resetting ptrauth keys Kristina Martsenko
2018-12-12 15:22 ` Dave Martin
2018-12-07 18:39 ` [PATCH v6 11/13] arm64: add ptrace regsets for ptrauth key management Kristina Martsenko
2018-12-12 15:23 ` Dave Martin
2018-12-07 18:39 ` [PATCH v6 12/13] arm64: enable pointer authentication Kristina Martsenko
2018-12-07 18:39 ` [PATCH v6 13/13] arm64: docs: document " Kristina Martsenko
2018-12-12 19:35 ` [PATCH v6 00/13] ARMv8.3 pointer authentication userspace support Will Deacon
2018-12-13 18:01 ` Will Deacon
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=20190103202901.GA21564@amd \
--to=pavel@ucw.cz \
--cc=amit.kachhap@arm.com \
--cc=ard.biesheuvel@linaro.org \
--cc=awallis@codeaurora.org \
--cc=catalin.marinas@arm.com \
--cc=christoffer.dall@arm.com \
--cc=dave.martin@arm.com \
--cc=drjones@redhat.com \
--cc=gorcunov@gmail.com \
--cc=jacob.bramley@arm.com \
--cc=keescook@chromium.org \
--cc=kristina.martsenko@arm.com \
--cc=kvmarm@lists.cs.columbia.edu \
--cc=linux-arm-kernel@lists.infradead.org \
--cc=linux-kernel@vger.kernel.org \
--cc=marc.zyngier@arm.com \
--cc=mark.rutland@arm.com \
--cc=ramana.radhakrishnan@arm.com \
--cc=richard.henderson@linaro.org \
--cc=suzuki.poulose@arm.com \
--cc=will.deacon@arm.com \
/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;
as well as URLs for NNTP newsgroup(s).