From: Suzuki K Poulose <Suzuki.Poulose@arm.com>
To: Christoffer Dall <christoffer.dall@linaro.org>
Cc: linux-arm-kernel@lists.infradead.org,
linux-kernel@vger.kernel.org, kvmarm@lists.cs.columbia.edu,
kvm@vger.kernel.org, marc.zyngier@arm.com, mark.rutland@arm.com,
will.deacon@arm.com, catalin.marinas@arm.com
Subject: Re: [PATCH 13/17] kvm-arm: Add stage2 page table modifiers
Date: Fri, 8 Apr 2016 16:37:02 +0100 [thread overview]
Message-ID: <5707D01E.1050309@arm.com> (raw)
In-Reply-To: <20160408134257.GW8961@cbox>
On 08/04/16 14:42, Christoffer Dall wrote:
> On Mon, Apr 04, 2016 at 05:26:13PM +0100, Suzuki K Poulose wrote:
>>
>> -static void clear_pud_entry(struct kvm *kvm, pud_t *pud, phys_addr_t addr)
>> +static void clear_stage2_pud_entry(struct kvm *kvm, pud_t *pud, phys_addr_t addr)
>> {
>> - pmd_t *pmd_table = pmd_offset(pud, 0);
>> - VM_BUG_ON(pud_huge(*pud));
>> - pud_clear(pud);
>> + pmd_t *pmd_table __maybe_unused = stage2_pmd_offset(pud, 0);
>
> The __maybe_unused are slightly ugly, so it may be nicer to create the
> stage2_pmd_free() as static inline's if they're defined to do nothing
> instead.
>
Sure, we could do that for stage2. However, we will need to fix the host helpers
as well for making such a change in the _hyp version (for 16K + 36bit VA).
>>
>
> Acked-by: Christoffer Dall <christoffer.dall@linaro.org>
>
Thanks
Suzuki
next prev parent reply other threads:[~2016-04-08 15:37 UTC|newest]
Thread overview: 52+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-04-04 16:26 [PATCH 00/17] kvm-arm: Add stage2 page table walker Suzuki K Poulose
2016-04-04 16:26 ` [PATCH 01/17] arm64: Reuse TCR field definitions for EL1 and EL2 Suzuki K Poulose
2016-04-08 12:43 ` Christoffer Dall
2016-04-04 16:26 ` [PATCH 02/17] arm64: Cleanup VTCR_EL2 and VTTBR field values Suzuki K Poulose
2016-04-08 12:43 ` Christoffer Dall
2016-04-08 12:45 ` Suzuki K Poulose
2016-04-04 16:26 ` [PATCH 03/17] kvm arm: Move fake PGD handling to arch specific files Suzuki K Poulose
2016-04-04 16:26 ` [PATCH 04/17] arm64: Introduce pmd_thp_or_huge Suzuki K Poulose
2016-04-08 12:43 ` Christoffer Dall
2016-04-04 16:26 ` [PATCH 05/17] kvm-arm: Replace kvm_pmd_huge with pmd_thp_or_huge Suzuki K Poulose
2016-04-08 12:43 ` Christoffer Dall
2016-04-04 16:26 ` [PATCH 06/17] kvm-arm: Remove kvm_pud_huge() Suzuki K Poulose
2016-04-08 12:44 ` Christoffer Dall
2016-04-04 16:26 ` [PATCH 07/17] kvm-arm: arm32: Introduce stage2 page table helpers Suzuki K Poulose
2016-04-08 12:43 ` Christoffer Dall
2016-04-08 14:39 ` Suzuki K Poulose
2016-04-04 16:26 ` [PATCH 08/17] kvm-arm: arm: Introduce hyp page table empty checks Suzuki K Poulose
2016-04-08 13:15 ` Christoffer Dall
2016-04-04 16:26 ` [PATCH 09/17] kvm-arm: arm64: Introduce stage2 page table helpers Suzuki K Poulose
2016-04-08 13:15 ` Christoffer Dall
2016-04-04 16:26 ` [PATCH 10/17] kvm-arm: arm64: Introduce hyp page table empty checks Suzuki K Poulose
2016-04-08 13:15 ` Christoffer Dall
2016-04-04 16:26 ` [PATCH 11/17] kvm-arm: Use explicit stage2 helper routines Suzuki K Poulose
2016-04-08 13:16 ` Christoffer Dall
2016-04-04 16:26 ` [PATCH 12/17] kvm-arm: Add explicit hyp page table modifiers Suzuki K Poulose
2016-04-08 13:15 ` Christoffer Dall
2016-04-08 15:09 ` Marc Zyngier
2016-04-08 15:16 ` Christoffer Dall
2016-04-08 15:22 ` Marc Zyngier
2016-04-08 15:22 ` Suzuki K Poulose
2016-04-08 15:25 ` Christoffer Dall
2016-04-04 16:26 ` [PATCH 13/17] kvm-arm: Add stage2 " Suzuki K Poulose
2016-04-08 13:42 ` Christoffer Dall
2016-04-08 15:37 ` Suzuki K Poulose [this message]
2016-04-08 17:03 ` Christoffer Dall
2016-04-08 17:07 ` Suzuki K Poulose
2016-04-08 17:25 ` Christoffer Dall
2016-04-04 16:26 ` [PATCH 14/17] kvm-arm: Cleanup kvm_* wrappers Suzuki K Poulose
2016-04-08 15:05 ` Christoffer Dall
2016-04-04 16:26 ` [PATCH 15/17] kvm: arm64: Get rid of fake page table levels Suzuki K Poulose
2016-04-08 15:05 ` Christoffer Dall
2016-04-11 14:33 ` Suzuki K Poulose
2016-04-12 12:14 ` Christoffer Dall
2016-04-12 13:03 ` Suzuki K Poulose
2016-04-12 13:11 ` Christoffer Dall
2016-04-13 17:49 ` Suzuki K Poulose
2016-04-14 12:18 ` Christoffer Dall
2016-04-04 16:26 ` [PATCH 16/17] kvm-arm: Cleanup stage2 pgd handling Suzuki K Poulose
2016-04-08 15:08 ` Christoffer Dall
2016-04-04 16:26 ` [PATCH 17/17] arm64: kvm: Add support for 16K pages Suzuki K Poulose
2016-04-08 15:13 ` Christoffer Dall
2016-04-08 15:15 ` [PATCH 00/17] kvm-arm: Add stage2 page table walker Christoffer Dall
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