From: Suzuki K Poulose <Suzuki.Poulose@arm.com>
To: Punit Agrawal <punit.agrawal@arm.com>, kvmarm@lists.cs.columbia.edu
Cc: marc.zyngier@arm.com, will.deacon@arm.com,
linux-arm-kernel@lists.infradead.org,
linux-kernel@vger.kernel.org
Subject: Re: [PATCH v6 2/8] KVM: arm/arm64: Re-factor setting the Stage 2 entry to exec on fault
Date: Mon, 16 Jul 2018 13:46:43 +0100 [thread overview]
Message-ID: <ee0a72a5-ffa9-6016-80e7-0abc6d65f514@arm.com> (raw)
In-Reply-To: <20180716110857.19310-3-punit.agrawal@arm.com>
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>
next prev parent reply other threads:[~2018-07-16 12:33 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-07-16 11:08 [PATCH v6 0/8] KVM: Support PUD hugepages at stage 2 Punit Agrawal
2018-07-16 11:08 ` [PATCH v6 1/8] KVM: arm/arm64: Share common code in user_mem_abort() Punit Agrawal
2018-07-16 12:45 ` Suzuki K Poulose
2018-07-16 13:28 ` Punit Agrawal
2018-07-16 11:08 ` [PATCH v6 2/8] KVM: arm/arm64: Re-factor setting the Stage 2 entry to exec on fault Punit Agrawal
2018-07-16 12:46 ` Suzuki K Poulose [this message]
2018-07-16 11:08 ` [PATCH v6 3/8] KVM: arm/arm64: Introduce helpers to manipulate page table entries Punit Agrawal
2018-07-16 11:08 ` [PATCH v6 4/8] KVM: arm64: Support dirty page tracking for PUD hugepages Punit Agrawal
2018-07-16 11:08 ` [PATCH v6 5/8] KVM: arm64: Support PUD hugepage in stage2_is_exec() Punit Agrawal
2018-07-16 11:08 ` [PATCH v6 6/8] KVM: arm64: Support handling access faults for PUD hugepages Punit Agrawal
2018-07-16 12:49 ` Suzuki K Poulose
2018-07-16 11:08 ` [PATCH v6 7/8] KVM: arm64: Update age handlers to support " Punit Agrawal
2018-07-16 11:08 ` [PATCH v6 8/8] KVM: arm64: Add support for creating PUD hugepages at stage 2 Punit Agrawal
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