From: will.deacon@arm.com (Will Deacon)
To: linux-arm-kernel@lists.infradead.org
Subject: 48-bit VA support in the SMMU
Date: Thu, 20 Nov 2014 10:08:22 +0000 [thread overview]
Message-ID: <20141120100822.GA19126@arm.com> (raw)
In-Reply-To: <decb25f05ca84d439e071f6ad8cf0086@BN3PR0301MB1219.namprd03.prod.outlook.com>
On Thu, Nov 20, 2014 at 01:25:18AM +0000, Varun Sethi wrote:
> What specific tweaks are required in the arm-smmu driver? I thought that
> the upstream arm-smmu (3.18-rc3) driver does support 48 bit input address
> (depended on the ARM64 kernel 48 bit support). Isn't this dependent on the
> VA_BITS?
Yeah, but it won't work for stage-2 mappings. I'm currently rewriting the
page table code to allow this (see my iommu/pgtbl branch).
Will
next prev parent reply other threads:[~2014-11-20 10:08 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-11-19 23:29 48-bit VA support in the SMMU Stuart Yoder
2014-11-20 1:25 ` Varun Sethi
2014-11-20 10:08 ` Will Deacon [this message]
2014-11-20 13:05 ` Varun Sethi
2014-11-20 13:25 ` Will Deacon
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