From: Will Deacon <will@kernel.org>
To: Marc Zyngier <maz@kernel.org>
Cc: linux-arm-kernel@lists.infradead.org,
Hector Martin <marcan@marcan.st>, Arnd Bergmann <arnd@kernel.org>,
Mark Rutland <mark.rutland@arm.com>,
Catalin Marinas <catalin.marinas@arm.com>,
kernel-team@android.com
Subject: Re: [PATCH v3 3/3] arm64: Get rid of CONFIG_ARM64_VHE
Date: Thu, 8 Apr 2021 17:59:14 +0100 [thread overview]
Message-ID: <20210408165912.GA18321@willie-the-truck> (raw)
In-Reply-To: <20210408131010.1109027-4-maz@kernel.org>
On Thu, Apr 08, 2021 at 02:10:10PM +0100, Marc Zyngier wrote:
> CONFIG_ARM64_VHE was introduced with ARMv8.1 (some 7 years ago),
> and has been enabled by default for almost all that time.
>
> Given that newer systems that are VHE capable are finally becoming
> available, and that some systems are even incapable of not running VHE,
> drop the configuration altogether.
>
> Anyone willing to stick to non-VHE on VHE hardware for obscure
> reasons should use the 'kvm-arm.mode=nvhe' command-line option.
>
> Suggested-by: Will Deacon <will@kernel.org>
> Signed-off-by: Marc Zyngier <maz@kernel.org>
> ---
> .../admin-guide/kernel-parameters.txt | 3 +--
> arch/arm64/Kconfig | 20 -------------------
> arch/arm64/kernel/cpufeature.c | 4 ----
> arch/arm64/kernel/hyp-stub.S | 2 --
> 4 files changed, 1 insertion(+), 28 deletions(-)
Huh, I was really expecting to see ARM64_VHE crop up in some Makefiles, but
it doesn't seem to! So:
Acked-by: Will Deacon <will@kernel.org>
Will
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next prev parent reply other threads:[~2021-04-08 17:00 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-04-08 13:10 [PATCH v3 0/3] arm64: Dealing with VHE-only CPUs Marc Zyngier
2021-04-08 13:10 ` [PATCH v3 1/3] arm64: cpufeature: Allow early filtering of feature override Marc Zyngier
2021-04-08 13:10 ` [PATCH v3 2/3] arm64: Cope with CPUs stuck in VHE mode Marc Zyngier
2021-04-08 13:10 ` [PATCH v3 3/3] arm64: Get rid of CONFIG_ARM64_VHE Marc Zyngier
2021-04-08 16:59 ` Will Deacon [this message]
2021-04-08 17:24 ` Marc Zyngier
2021-04-08 21:47 ` Arnd Bergmann
2021-04-09 8:28 ` Marc Zyngier
2021-04-08 18:00 ` [PATCH v3 0/3] arm64: Dealing with VHE-only CPUs Catalin Marinas
2021-04-08 18:08 ` Marc Zyngier
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