From: Catalin Marinas <catalin.marinas@arm.com>
To: Daniel Kiss <daniel.kiss@arm.com>
Cc: will@kernel.org, Ard.Biesheuvel@arm.com,
linux-arm-kernel@lists.infradead.org, pcc@google.com
Subject: Re: [PATCH v5 2/2] arm64: Conditionally configure PTR_AUTH key of the kernel.
Date: Fri, 4 Jun 2021 12:04:18 +0100 [thread overview]
Message-ID: <20210604110417.GC31173@arm.com> (raw)
In-Reply-To: <20210604100437.1658599-3-daniel.kiss@arm.com>
On Fri, Jun 04, 2021 at 12:04:37PM +0200, Daniel Kiss wrote:
> If the kernel is not compiled with CONFIG_ARM64_PTR_AUTH_KERNEL=y,
> then no PACI/AUTI instructions are expected while the kernel is running
> so the kernel's key will not be used. Write of a system regiters
s/regiters/registers/
> is expensive therefore avoid it not required.
s/it/if/
> Signed-off-by: Daniel Kiss <daniel.kiss@arm.com>
Reviewed-by: Catalin Marinas <catalin.marinas@arm.com>
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prev parent reply other threads:[~2021-06-04 11:19 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-06-04 10:04 [PATCH v5 0/2] arm64: split ARM64_PTR_AUTH option to userspace and kernel Daniel Kiss
2021-06-04 10:04 ` [PATCH v5 1/2] arm64: Add ARM64_PTR_AUTH_KERNEL config option Daniel Kiss
2021-06-04 10:37 ` Catalin Marinas
2021-06-08 11:58 ` Will Deacon
2021-06-13 9:25 ` Daniel Kiss
2021-06-04 10:04 ` [PATCH v5 2/2] arm64: Conditionally configure PTR_AUTH key of the kernel Daniel Kiss
2021-06-04 11:04 ` Catalin Marinas [this message]
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