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Subject: Re: [PATCH v6 2/8] KVM: arm/arm64: Re-factor setting the Stage 2
 entry to exec on fault
To:     Punit Agrawal <punit.agrawal@arm.com>, kvmarm@lists.cs.columbia.edu
Cc:     linux-arm-kernel@lists.infradead.org, marc.zyngier@arm.com,
        christoffer.dall@arm.com, linux-kernel@vger.kernel.org,
        will.deacon@arm.com
References: <20180716110857.19310-1-punit.agrawal@arm.com>
 <20180716110857.19310-3-punit.agrawal@arm.com>
From:   Suzuki K Poulose <Suzuki.Poulose@arm.com>
Message-ID: <ee0a72a5-ffa9-6016-80e7-0abc6d65f514@arm.com>
Date:   Mon, 16 Jul 2018 13:46:43 +0100
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On 16/07/18 12:08, Punit Agrawal wrote:
> Stage 2 fault handler marks a page as executable if it is handling an
> execution fault or if it was a permission fault in which case the
> executable bit needs to be preserved.
> 
> The logic to decide if the page should be marked executable is
> duplicated for PMD and PTE entries. To avoid creating another copy
> when support for PUD hugepages is introduced refactor the code to
> share the checks needed to mark a page table entry as executable.
> 
> Signed-off-by: Punit Agrawal <punit.agrawal@arm.com>
> Cc: Christoffer Dall <christoffer.dall@arm.com>
> Cc: Marc Zyngier <marc.zyngier@arm.com>

Reviewed-by: Suzuki K Poulose <suzuki.poulose@arm.com>