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Re: [PATCH 00/14] arm64: 16K translation granule support

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  Re: [PATCH 00/14] arm64: 16K translation granule support Ard Biesheuvel <ard.biesheuvel@linaro.org> - 2015-09-02 12:00 +0200
    Re: [PATCH 00/14] arm64: 16K translation granule support "Suzuki K. Poulose" <Suzuki.Poulose@arm.com> - 2015-09-02 12:20 +0200

#1217465 — Re: [PATCH 00/14] arm64: 16K translation granule support

On 13 August 2015 at 13:33, Suzuki K. Poulose <suzuki.poulose@arm.com> wrote:
> From: "Suzuki K. Poulose" <suzuki.poulose@arm.com>
>
> This series enables the 16K page size support on Linux for arm64.
> This series adds support for 48bit VA(4 level), 47bit VA(3 level) and
> 36bit VA(2 level) with 16K. 16K was a late addition to the architecture
> and is not implemented by all CPUs. Added a check to ensure the
> selected granule size is supported by the CPU, failing which the CPU
> won't proceed with booting.
>
> KVM bits have been tested on a fast model with GICv3 using Andre's kvmtool
> with gicv3 support[1].
>
> Patches 1-7 cleans up the kernel page size handling code.
> Patches 8-11 Fixes some issues with the KVM bits, mainly the fake PGD
>              handling code.
> Patch 12    Adds a check to ensure the CPU supports the selected granule size.
> Patch 13-14 Adds the 16k page size support bits.
>
> This series applies on top of for-next/core branch of the aarch64 tree and is
> also available here:
>
>         git://linux-arm.org/linux-skp.git  16k/v1
>


Hi Suzuki,

I have given this a spin on the FVP Base model to check UEFI booting,
and everything seems to work fine. (I tested 2-level and 3-level)
I didn't test the KVM changes, so for all patches except those:

Reviewed-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Tested-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>

Regards,
Ard.
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#1217488

On 02/09/15 10:55, Ard Biesheuvel wrote:
> On 13 August 2015 at 13:33, Suzuki K. Poulose <suzuki.poulose@arm.com> wrote:
>> From: "Suzuki K. Poulose" <suzuki.poulose@arm.com>
>>

>> Patches 1-7 cleans up the kernel page size handling code.
>> Patches 8-11 Fixes some issues with the KVM bits, mainly the fake PGD
>>               handling code.
>> Patch 12    Adds a check to ensure the CPU supports the selected granule size.
>> Patch 13-14 Adds the 16k page size support bits.
>>
>> This series applies on top of for-next/core branch of the aarch64 tree and is
>> also available here:
>>
>>          git://linux-arm.org/linux-skp.git  16k/v1
>>
>
>
> Hi Suzuki,
>
> I have given this a spin on the FVP Base model to check UEFI booting,
> and everything seems to work fine. (I tested 2-level and 3-level)
> I didn't test the KVM changes, so for all patches except those:
>
> Reviewed-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
> Tested-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>

Thanks for the review and testing !!

Suzuki

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