From: Marc Zyngier <maz@kernel.org>
To: kvmarm@lists.cs.columbia.edu, David Brazdil <dbrazdil@google.com>,
Will Deacon <will@kernel.org>
Cc: linux-arm-kernel@lists.infradead.org,
linux-kernel@vger.kernel.org, Dennis Zhou <dennis@kernel.org>,
Catalin Marinas <catalin.marinas@arm.com>,
Tejun Heo <tj@kernel.org>,
kernel-team@android.com, Christoph Lameter <cl@linux.com>
Subject: Re: [PATCH] KVM: arm64: Pass level hint to TLBI during stage-2 permission fault
Date: Fri, 2 Oct 2020 09:20:01 +0100 [thread overview]
Message-ID: <160162675379.1930042.14641926420921373250.b4-ty@kernel.org> (raw)
In-Reply-To: <20200930131801.16889-1-will@kernel.org>
On Wed, 30 Sep 2020 14:18:01 +0100, Will Deacon wrote:
> Alex pointed out that we don't pass a level hint to the TLBI instruction
> when handling a stage-2 permission fault, even though the walker does
> at some point have the level information in its hands.
>
> Rework stage2_update_leaf_attrs() so that it can optionally return the
> level of the updated pte to its caller, which can in turn be used to
> provide the correct TLBI level hint.
Applied to next, thanks!
[1/1] KVM: arm64: Pass level hint to TLBI during stage-2 permission fault
commit: b259d137e91d80bf92eac453ffab179eb7941ede
Cheers,
M.
--
Without deviation from the norm, progress is not possible.
WARNING: multiple messages have this Message-ID (diff)
From: Marc Zyngier <maz@kernel.org>
To: kvmarm@lists.cs.columbia.edu, David Brazdil <dbrazdil@google.com>,
Will Deacon <will@kernel.org>
Cc: Catalin Marinas <catalin.marinas@arm.com>,
linux-kernel@vger.kernel.org, Tejun Heo <tj@kernel.org>,
Dennis Zhou <dennis@kernel.org>, Christoph Lameter <cl@linux.com>,
kernel-team@android.com, linux-arm-kernel@lists.infradead.org
Subject: Re: [PATCH] KVM: arm64: Pass level hint to TLBI during stage-2 permission fault
Date: Fri, 2 Oct 2020 09:20:01 +0100 [thread overview]
Message-ID: <160162675379.1930042.14641926420921373250.b4-ty@kernel.org> (raw)
In-Reply-To: <20200930131801.16889-1-will@kernel.org>
On Wed, 30 Sep 2020 14:18:01 +0100, Will Deacon wrote:
> Alex pointed out that we don't pass a level hint to the TLBI instruction
> when handling a stage-2 permission fault, even though the walker does
> at some point have the level information in its hands.
>
> Rework stage2_update_leaf_attrs() so that it can optionally return the
> level of the updated pte to its caller, which can in turn be used to
> provide the correct TLBI level hint.
Applied to next, thanks!
[1/1] KVM: arm64: Pass level hint to TLBI during stage-2 permission fault
commit: b259d137e91d80bf92eac453ffab179eb7941ede
Cheers,
M.
--
Without deviation from the norm, progress is not possible.
_______________________________________________
kvmarm mailing list
kvmarm@lists.cs.columbia.edu
https://lists.cs.columbia.edu/mailman/listinfo/kvmarm
WARNING: multiple messages have this Message-ID (diff)
From: Marc Zyngier <maz@kernel.org>
To: kvmarm@lists.cs.columbia.edu, David Brazdil <dbrazdil@google.com>,
Will Deacon <will@kernel.org>
Cc: Catalin Marinas <catalin.marinas@arm.com>,
linux-kernel@vger.kernel.org, Tejun Heo <tj@kernel.org>,
Dennis Zhou <dennis@kernel.org>, Christoph Lameter <cl@linux.com>,
kernel-team@android.com, linux-arm-kernel@lists.infradead.org
Subject: Re: [PATCH] KVM: arm64: Pass level hint to TLBI during stage-2 permission fault
Date: Fri, 2 Oct 2020 09:20:01 +0100 [thread overview]
Message-ID: <160162675379.1930042.14641926420921373250.b4-ty@kernel.org> (raw)
In-Reply-To: <20200930131801.16889-1-will@kernel.org>
On Wed, 30 Sep 2020 14:18:01 +0100, Will Deacon wrote:
> Alex pointed out that we don't pass a level hint to the TLBI instruction
> when handling a stage-2 permission fault, even though the walker does
> at some point have the level information in its hands.
>
> Rework stage2_update_leaf_attrs() so that it can optionally return the
> level of the updated pte to its caller, which can in turn be used to
> provide the correct TLBI level hint.
Applied to next, thanks!
[1/1] KVM: arm64: Pass level hint to TLBI during stage-2 permission fault
commit: b259d137e91d80bf92eac453ffab179eb7941ede
Cheers,
M.
--
Without deviation from the norm, progress is not possible.
_______________________________________________
linux-arm-kernel mailing list
linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
next prev parent reply other threads:[~2020-10-02 8:20 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-09-30 13:18 [PATCH] KVM: arm64: Pass level hint to TLBI during stage-2 permission fault Will Deacon
2020-10-01 1:55 ` Gavin Shan
2020-10-01 10:13 ` Alexandru Elisei
2020-10-02 8:20 ` Marc Zyngier [this message]
2020-10-02 8:20 ` Marc Zyngier
2020-10-02 8:20 ` Marc Zyngier
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