linux-kernel - Re: [PATCH] KVM: arm64: Trim guest debug exception handling

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Message-Id: <162997424183.1640651.9657746284386330796.b4-ty@kernel.org>
Date:   Thu, 26 Aug 2021 11:37:46 +0100
From:   Marc Zyngier <maz@...nel.org>
To:     Raghavendra Rao Ananta <rananta@...gle.com>,
        Alexandru Elisei <alexandru.elisei@....com>,
        Suzuki K Poulose <suzuki.poulose@....com>,
        James Morse <james.morse@....com>
Cc:     Jing Zhang <jingzhangos@...gle.com>,
        Catalin Marinas <catalin.marinas@....com>,
        Reiji Watanabe <reijiw@...gle.com>,
        kvmarm@...ts.cs.columbia.edu, Peter Shier <pshier@...gle.com>,
        Oliver Upton <oupton@...gle.com>, linux-kernel@...r.kernel.org,
        Will Deacon <will@...nel.org>,
        Ricardo Koller <ricarkol@...gle.com>,
        linux-arm-kernel@...ts.infradead.org
Subject: Re: [PATCH] KVM: arm64: Trim guest debug exception handling

On Mon, 23 Aug 2021 22:39:40 +0000, Raghavendra Rao Ananta wrote:
> The switch-case for handling guest debug exception covers
> all the debug exception classes, but functionally, doesn't
> do anything with them other than ESR_ELx_EC_WATCHPT_LOW.
> Moreover, even though handled well, the 'default' case
> could be confusing from a security point of view, stating
> that the guests' actions can potentially flood the syslog.
> But in reality, the code is unreachable.
> 
> [...]

Applied to next, thanks!

[1/1] KVM: arm64: Trim guest debug exception handling
      commit: 8ce8a6fce9bfd3fcabe230ad104e2caf08b2e58d

Cheers,

	M.
-- 
Without deviation from the norm, progress is not possible.