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Re: [PATCH v2 2/3] docs/cpu-features: Update "PAuth" (Pointer Authentica
From: |
Alex Bennée |
Subject: |
Re: [PATCH v2 2/3] docs/cpu-features: Update "PAuth" (Pointer Authentication) details |
Date: |
Thu, 13 Feb 2025 21:17:43 +0000 |
User-agent: |
mu4e 1.12.8; emacs 29.4 |
Kashyap Chamarthy <kchamart@redhat.com> writes:
> PAuth (Pointer Authentication), a security feature in software, is
> relevant for both KVM and QEMU. Relect this fact into the docs:
>
> - For KVM, `pauth` is a binary, "on" vs "off" option. The host CPU
> will choose the cryptographic algorithm.
>
> - For TCG, however, along with `pauth`, a couple of properties can be
> controlled -- they're are related to cryptographic algorithm choice.
>
> Thanks to Peter Maydell and Marc Zyngier for explaining more about PAuth
> on IRC (#qemu, OFTC).
>
> Signed-off-by: Kashyap Chamarthy <kchamart@redhat.com>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
--
Alex Bennée
Virtualisation Tech Lead @ Linaro
- [PATCH v2 0/3] docs: Small changes to system/arm/cpu-features and more, Kashyap Chamarthy, 2025/02/13
- [PATCH v2 0/3] docs: Small changes to system/arm/cpu-features and more, Kashyap Chamarthy, 2025/02/17
- [PATCH v2 1/3] docs/cpu-features: Consistently use vCPU instead of VCPU, Kashyap Chamarthy, 2025/02/17
- [PATCH v2 2/3] docs/cpu-features: Update "PAuth" (Pointer Authentication) details, Kashyap Chamarthy, 2025/02/17
- Re: [PATCH v2 2/3] docs/cpu-features: Update "PAuth" (Pointer Authentication) details, Eric Auger, 2025/02/17
- Re: [PATCH v2 2/3] docs/cpu-features: Update "PAuth" (Pointer Authentication) details, Kashyap Chamarthy, 2025/02/18
- Re: [PATCH v2 2/3] docs/cpu-features: Update "PAuth" (Pointer Authentication) details, Peter Maydell, 2025/02/18
- Re: [PATCH v2 2/3] docs/cpu-features: Update "PAuth" (Pointer Authentication) details, Eric Auger, 2025/02/18
- Re: [PATCH v2 2/3] docs/cpu-features: Update "PAuth" (Pointer Authentication) details, Kashyap Chamarthy, 2025/02/18