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From: Catalin Marinas <catalin.marinas@arm.com>
To: Mark Brown <broonie@kernel.org>
Cc: Will Deacon <will@kernel.org>,
	linux-arm-kernel@lists.infradead.org,
	Suzuki K Poulose <Suzuki.Poulose@arm.com>
Subject: Re: [PATCH v4 0/4] E0PD support
Date: Wed, 30 Oct 2019 12:26:32 +0000	[thread overview]
Message-ID: <20191030122631.GC10294@arrakis.emea.arm.com> (raw)
In-Reply-To: <20191024214207.20588-1-broonie@kernel.org>

On Thu, Oct 24, 2019 at 10:42:03PM +0100, Mark Brown wrote:
> This series adds support for E0PD. We enable E0PD unconditionally where
> present on systems where all the CPUs in the system support E0PD and
> change to not enabling KPTI by default on systems where we have enabled
> E0PD. It also converts the runtime checks for use of non-global mappings
> into a variable.
> 
> v4: Use a variable to store our decision about using non-global mappings
>     rather than rechecking constantly at runtime. I've added this as a
>     separate patch mainly for bisection.
> v3: Make E0PD a system wide feature.
> 
> Mark Brown (4):
>   arm64: Add initial support for E0PD
>   arm64: Factor out checks for KASLR in KPTI code into separate function
>   arm64: Don't use KPTI where we have E0PD
>   arm64: Use a variable to store non-global mappings decision

The patches look fine to me and I'm planning to queue them (with the
additional changes I mentioned on patch 4, I can do them locally).

I can still add acks/reviews in the next couple of days but I'd like to
push them into -next fairly soon to get some exposure.

Thanks.

-- 
Catalin

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  parent reply	other threads:[~2019-10-30 12:26 UTC|newest]

Thread overview: 21+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-10-24 21:42 [PATCH v4 0/4] E0PD support Mark Brown
2019-10-24 21:42 ` [PATCH v4 1/4] arm64: Add initial support for E0PD Mark Brown
2019-10-24 21:42 ` [PATCH v4 2/4] arm64: Factor out checks for KASLR in KPTI code into separate function Mark Brown
2019-10-24 21:42 ` [PATCH v4 3/4] arm64: Don't use KPTI where we have E0PD Mark Brown
2019-10-24 21:42 ` [PATCH v4 4/4] arm64: Use a variable to store non-global mappings decision Mark Brown
2019-10-30 12:13   ` Catalin Marinas
2019-10-30 12:41     ` Mark Brown
2019-10-30 14:17       ` Catalin Marinas
2019-10-31  8:18         ` Mark Brown
2019-10-31 10:18           ` Catalin Marinas
2019-10-31 10:35             ` Mark Brown
2019-11-04 17:20             ` Mark Brown
2019-10-30 12:26 ` Catalin Marinas [this message]
2019-10-30 12:54   ` [PATCH v4 0/4] E0PD support Mark Brown
2019-10-31 11:26 ` Will Deacon
2019-10-31 12:13   ` John Garry
2019-10-31 12:42     ` Will Deacon
2019-10-31 13:00       ` Mark Brown
2019-10-31 13:09         ` Will Deacon
2019-10-31 14:13       ` John Garry
2019-10-31 16:06         ` Ard Biesheuvel

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