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From: Daniel Kiss <daniel.kiss@arm.com>
To: daniel.kiss@arm.com
Cc: Catalin.Marinas@arm.com, will@kernel.org, pcc@google.com,
	Ard.Biesheuvel@arm.com, linux-arm-kernel@lists.infradead.org
Subject: arm64: split ARM64_PTR_AUTH option to userspace and kernel
Date: Fri, 18 Dec 2020 12:56:30 +0100	[thread overview]
Message-ID: <20201218115632.59067-1-daniel.kiss@arm.com> (raw)
In-Reply-To: <26513330-006C-4B28-9123-656CAEB70E1A@arm.com>

As discussed the A-key left enabled, this makes the patch simpler too.
arch/arm64/crypto/poly1305-core.S_shipped contains PACISP/AUTISP
instructions but this code is called while the preeption is disabled,
therefore it won't cause any trouble.

v2:
- dropped the keychange/enablement for the kernel keys.



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  reply	other threads:[~2020-12-18 11:58 UTC|newest]

Thread overview: 15+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-12-07 22:46 arm64: split ARM64_PTR_AUTH option to userspace and kernel configs Daniel Kiss
2020-12-07 22:46 ` [PATCH 1/2] arm64: Add ARM64_PTR_AUTH_KERNEL config option Daniel Kiss
2020-12-07 22:46 ` [PATCH 2/2] arm64: Configure kernel's PTR_AUTH key when it is built with PTR_AUTH Daniel Kiss
2020-12-07 23:07   ` Peter Collingbourne
2020-12-08 11:00     ` Catalin Marinas
2020-12-08 19:33       ` Peter Collingbourne
2020-12-09 10:51         ` Will Deacon
2020-12-09 11:56           ` Daniel Kiss
2020-12-18 11:56             ` Daniel Kiss [this message]
2020-12-18 11:56               ` [PATCH v2 1/2] arm64: Add ARM64_PTR_AUTH_KERNEL config option Daniel Kiss
2021-01-26 13:27                 ` Will Deacon
2021-02-08 14:39                   ` Daniel Kiss
2020-12-18 11:56               ` [PATCH v2 2/2] arm64: Do not configure kernel's PTR_AUTH key when it not needed Daniel Kiss
2021-01-26 13:32                 ` Will Deacon
2021-01-26 13:17               ` arm64: split ARM64_PTR_AUTH option to userspace and kernel Will Deacon

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