linux-kernel - Re: [UPDATED] [PATCHv4 00/12] arm64: 16K translation granule support

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Message-ID: <20151019163440.GE29001@leverpostej>
Date:	Mon, 19 Oct 2015 17:34:40 +0100
From:	Mark Rutland <mark.rutland@....com>
To:	"Suzuki K. Poulose" <suzuki.poulose@....com>
Cc:	linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
	marc.zyngier@....com, will.deacon@....com, catalin.marinas@....com,
	christoffer.dall@...aro.org, steve.capper@...aro.org,
	ard.biesheuvel@...aro.org, jeremy.linton@....com
Subject: Re: [UPDATED] [PATCHv4 00/12] arm64: 16K translation granule support

On Mon, Oct 19, 2015 at 02:19:26PM +0100, Suzuki K. Poulose wrote:
> This series enables the 16K page size support on Linux for arm64.
> 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. Also the kernel page size is added to the
> kernel image header (patch from Ard).
> 
> KVM support has been dropped from this series, as we need to rewrite the
> KVM stage-2 pagetable handling code to get rid of the fake page table
> levels (as recommended by Christoffer and Marc). So, with 16K, we cannot
> run KVM.
> 
> Patches 1-8	cleans up the kernel page size handling code.
> Patch 9		Adds a check to ensure the CPU supports the selected granule size.
> Patch 10		Adds the page size information to image header.
> Patches 11-12	Adds the support for 16K page size

FWIW, for the series:

Acked-by: Mark Rutland <mark.rutland@....com>

Thanks,
Mark.
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