From: Will Deacon <will@kernel.org>
To: Mark Rutland <mark.rutland@arm.com>
Cc: maz@kernel.org, dbrazdil@google.com,
kvmarm@lists.cs.columbia.edu,
linux-arm-kernel@lists.infradead.org
Subject: Re: [PATCHv2 1/3] arm64: kvm: factor out is_{vhe,nvhe}_hyp_code()
Date: Fri, 30 Oct 2020 08:21:31 +0000 [thread overview]
Message-ID: <20201030082131.GA32163@willie-the-truck> (raw)
In-Reply-To: <20201026134931.28246-2-mark.rutland@arm.com>
On Mon, Oct 26, 2020 at 01:49:29PM +0000, Mark Rutland wrote:
> Currently has_vhe() detects whether it is being compiled for VHE/NVHE
> hyp code based on preprocessor definitions, and uses this knowledge to
> avoid redundant runtime checks.
>
> There are other cases where we'd like to use this knowledge, so let's
> factor the preprocessor checks out into separate helpers.
>
> There should be no functional change as a result of this patch.
>
> Signed-off-by: Mark Rutland <mark.rutland@arm.com>
> Cc: David Brazdil <dbrazdil@google.com>
> Cc: Marc Zyngier <maz@kernel.org>
> Cc: Will Deacon <will@kernel.org>
> ---
> arch/arm64/include/asm/virt.h | 21 ++++++++++++++++-----
> 1 file changed, 16 insertions(+), 5 deletions(-)
Acked-by: Will Deacon <will@kernel.org>
Will
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next prev parent reply other threads:[~2020-10-30 8:22 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-10-26 13:49 [PATCHv2 0/3] arm64: kvm: avoid referencing cpu_hwcaps from hyp Mark Rutland
2020-10-26 13:49 ` [PATCHv2 1/3] arm64: kvm: factor out is_{vhe,nvhe}_hyp_code() Mark Rutland
2020-10-30 8:21 ` Will Deacon [this message]
2020-10-26 13:49 ` [PATCHv2 2/3] arm64: cpufeature: reorder cpus_have_{const, final}_cap() Mark Rutland
2020-10-30 8:18 ` [PATCHv2 2/3] arm64: cpufeature: reorder cpus_have_{const,final}_cap() Will Deacon
2020-10-30 8:20 ` Will Deacon
2020-10-30 14:18 ` Mark Rutland
2020-10-26 13:49 ` [PATCHv2 3/3] arm64: cpufeature: upgrade hyp caps to final Mark Rutland
2020-10-30 8:24 ` Will Deacon
2020-10-29 19:48 ` [PATCHv2 0/3] arm64: kvm: avoid referencing cpu_hwcaps from hyp Marc Zyngier
2020-10-30 10:59 ` Marc Zyngier
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