From: Catalin Marinas <catalin.marinas@arm.com>
To: Vladimir Murzin <vladimir.murzin@arm.com>
Cc: linux-arm-kernel@lists.infradead.org, maz@kernel.org,
mark.rutland@arm.com, will@kernel.org
Subject: Re: [PATCH v2 2/4] arm64: cpufeature: Warn if mutually exclusive PAuth algorithms detected
Date: Fri, 4 Feb 2022 18:16:13 +0000 [thread overview]
Message-ID: <Yf1tbVjvSj9ZrZSR@arm.com> (raw)
In-Reply-To: <20220131170654.62381-3-vladimir.murzin@arm.com>
On Mon, Jan 31, 2022 at 05:06:52PM +0000, Vladimir Murzin wrote:
> ARM ARM states for address authentication algorithms
>
> APA, bits [7:4] If the value of ID_AA64ISAR1_EL1.API is non-zero, this
> field must have the value 0b0000.
>
> API, bits [11:8] If the value of ID_AA64ISAR1_EL1.APA is non-zero,
> this field must have the value 0b0000.
>
> Similarly for generic code authentication algorithms
>
> GPA, bits [27:24] If the value of ID_AA64ISAR1_EL1.GPI is non-zero,
> this field must have the value 0b0000.
>
> GPI, bits [31:28] If the value of ID_AA64ISAR1_EL1.GPA is non-zero,
> this field must have the value 0b0000.
>
> Let's add a warning if that not true.
>
> Signed-off-by: Vladimir Murzin <vladimir.murzin@arm.com>
Acked-by: Catalin Marinas <catalin.marinas@arm.com>
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next prev parent reply other threads:[~2022-02-04 18:17 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-01-31 17:06 [PATCH v2 0/4] arm64: Support of PAuth QARMA3 architected algorithm Vladimir Murzin
2022-01-31 17:06 ` [PATCH v2 1/4] arm64: cpufeature: Account min_field_value when cheking secondaries for PAuth Vladimir Murzin
2022-02-04 18:13 ` Catalin Marinas
2022-01-31 17:06 ` [PATCH v2 2/4] arm64: cpufeature: Warn if mutually exclusive PAuth algorithms detected Vladimir Murzin
2022-02-04 18:16 ` Catalin Marinas [this message]
2022-01-31 17:06 ` [PATCH v2 3/4] arm64: cpufeature: Mark existing PAuth architected algorithm as QARMA5 Vladimir Murzin
2022-02-04 18:18 ` Catalin Marinas
2022-01-31 17:06 ` [PATCH v2 4/4] arm64: Add support of PAuth QARMA3 architected algorithm Vladimir Murzin
2022-02-04 18:42 ` Catalin Marinas
2022-02-15 18:21 ` Will Deacon
2022-02-21 14:47 ` Vladimir Murzin
2022-02-22 21:50 ` Will Deacon
2022-02-23 11:20 ` Vladimir Murzin
2022-02-24 9:49 ` Will Deacon
2022-01-31 17:38 ` [PATCH v2 0/4] arm64: Support " Vladimir Murzin
2022-02-05 10:27 ` Marc Zyngier
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