From: Will Deacon <will.deacon-5wv7dgnIgG8@public.gmane.org>
To: Varun Sethi <Varun.Sethi-KZfg59tc24xl57MIdRCFDg@public.gmane.org>
Cc: "iommu-cunTk1MwBs9QetFLy7KEm3xJsTq8ys+cHZ5vskTnxNA@public.gmane.org"
<iommu-cunTk1MwBs9QetFLy7KEm3xJsTq8ys+cHZ5vskTnxNA@public.gmane.org>
Subject: Re: [PATCH v3 3/3] iommu/arm-smmu: add support for DOMAIN_ATTR_NESTING attribute
Date: Tue, 2 Sep 2014 12:16:26 +0100 [thread overview]
Message-ID: <20140902111626.GJ25379@arm.com> (raw)
In-Reply-To: <6c60062d962340bbaeccb07c82eaae73-AZ66ij2kwaacCcN9WK45f+O6mTEJWrR4XA4E9RH9d+qIuWR1G4zioA@public.gmane.org>
On Tue, Sep 02, 2014 at 12:12:20PM +0100, Varun Sethi wrote:
> We would still need a mechanism to distinguish stage1 mapping from stage2
> mapping i.e. for nested translation we should be able to specify whether
> the mapping corresponds to stage1 or stage 2 translation. Also,
> correspondingly we would require different context banks for stage 1 and
> stage 2 translation.
Please take a look at my iommu/pci branch where I have much more support
for nested translation with the ARM SMMU driver. This series is purely about
getting the stage-2 part configured -- you need a virtual SMMU interface for
the stage-1 component.
Will
next prev parent reply other threads:[~2014-09-02 11:16 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-09-02 9:53 [PATCH v3 0/3] Support for nesting IOMMUs in VFIO Will Deacon
[not found] ` <1409651619-27342-1-git-send-email-will.deacon-5wv7dgnIgG8@public.gmane.org>
2014-09-02 9:53 ` [PATCH v3 1/3] iommu: introduce domain attribute for nesting IOMMUs Will Deacon
2014-09-02 9:53 ` [PATCH v3 2/3] vfio/iommu_type1: add new VFIO_TYPE1_NESTING_IOMMU IOMMU type Will Deacon
[not found] ` <1409651619-27342-3-git-send-email-will.deacon-5wv7dgnIgG8@public.gmane.org>
2014-09-11 19:12 ` Alex Williamson
[not found] ` <1410462748.2982.342.camel-85EaTFmN5p//9pzu0YdTqQ@public.gmane.org>
2014-09-12 16:55 ` Will Deacon
[not found] ` <20140912165520.GF12108-5wv7dgnIgG8@public.gmane.org>
2014-09-12 17:25 ` Alex Williamson
2014-09-02 9:53 ` [PATCH v3 3/3] iommu/arm-smmu: add support for DOMAIN_ATTR_NESTING attribute Will Deacon
[not found] ` <1409651619-27342-4-git-send-email-will.deacon-5wv7dgnIgG8@public.gmane.org>
2014-09-02 11:12 ` Varun Sethi
[not found] ` <6c60062d962340bbaeccb07c82eaae73-AZ66ij2kwaacCcN9WK45f+O6mTEJWrR4XA4E9RH9d+qIuWR1G4zioA@public.gmane.org>
2014-09-02 11:16 ` Will Deacon [this message]
2014-09-03 15:22 ` [PATCH v3 0/3] Support for nesting IOMMUs in VFIO Joerg Roedel
[not found] ` <20140903152241.GK28786-zLv9SwRftAIdnm+yROfE0A@public.gmane.org>
2014-09-03 16:04 ` Will Deacon
2014-09-11 17:10 ` Will Deacon
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