From: will.deacon@arm.com (Will Deacon)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH v4 0/7] arm64: Verify early CPU features
Date: Tue, 9 Feb 2016 17:20:58 +0000 [thread overview]
Message-ID: <20160209172057.GU22874@arm.com> (raw)
In-Reply-To: <1453745225-27736-1-git-send-email-suzuki.poulose@arm.com>
On Mon, Jan 25, 2016 at 06:06:58PM +0000, Suzuki K Poulose wrote:
> From: Suzuki K. Poulose <suzuki.poulose@arm.com>
>
> This series adds support for verifying some of the cpufeatures
> that are decided early in the boot process based on the boot
> CPU and cannot be delayed until all the CPUs are up (e.g, ASIDBits
> and may be VHE?). It also adds support for handling the failures
> in booting the secondary CPUs which could not be synchronised
> with the master CPU, otherwise.
>
> It also adds one of the users of this early hook, check for ASIDBits.
> The mm_context id is based on the ASIDBits width supported by the
> boot CPU and is used early in the initialisation. So we need to make
> sure that all the secondary CPUs supports the width reported by the
> booting CPU, failing which we crash the system.
>
> This series has been tested on Juno, Fast model by injecting smaller
> ASIDBits, lack of page-size support and missing features(PAN)
Module the comments from Mark and Catalin on patch 4, the rest looks
good to me:
Acked-by: Will Deacon <will.deacon@arm.com>
Will
prev parent reply other threads:[~2016-02-09 17:20 UTC|newest]
Thread overview: 20+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-01-25 18:06 [PATCH v4 0/7] arm64: Verify early CPU features Suzuki K Poulose
2016-01-25 18:06 ` [PATCH v4 1/7] arm64: Add a helper for parking CPUs in a loop Suzuki K Poulose
2016-01-25 18:07 ` [PATCH v4 2/7] arm64: Introduce cpu_die_early Suzuki K Poulose
2016-01-25 18:07 ` [PATCH v4 3/7] arm64: Move cpu_die_early to smp.c Suzuki K Poulose
2016-01-25 18:07 ` [PATCH v4 4/7] arm64: Handle early CPU boot failures Suzuki K Poulose
2016-02-03 12:57 ` Catalin Marinas
2016-02-03 16:46 ` Mark Rutland
2016-02-03 17:34 ` Catalin Marinas
2016-02-03 17:53 ` Mark Rutland
2016-02-03 18:12 ` Catalin Marinas
2016-02-03 19:31 ` Mark Rutland
2016-02-03 17:23 ` Suzuki K. Poulose
2016-02-03 17:01 ` Mark Rutland
2016-02-03 17:15 ` Catalin Marinas
2016-02-03 17:24 ` Suzuki K. Poulose
2016-02-03 17:35 ` Mark Rutland
2016-01-25 18:07 ` [PATCH v4 5/7] arm64: Enable CPU capability verification unconditionally Suzuki K Poulose
2016-01-25 18:07 ` [PATCH v4 6/7] arm64: Add helper for extracting ASIDBits Suzuki K Poulose
2016-01-25 18:07 ` [PATCH v4 7/7] arm64: Ensure the secondary CPUs have safe ASIDBits size Suzuki K Poulose
2016-02-09 17:20 ` Will Deacon [this message]
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