From: Paul Durrant <Paul.Durrant@citrix.com>
To: Kevin Tian <kevin.tian@intel.com>,
"xen-devel@lists.xenproject.org" <xen-devel@lists.xenproject.org>
Cc: Stefano Stabellini <sstabellini@kernel.org>,
Wei Liu <wei.liu2@citrix.com>,
Andrew Cooper <Andrew.Cooper3@citrix.com>,
"Tim (Xen.org)" <tim@xen.org>,
George Dunlap <George.Dunlap@citrix.com>,
Jan Beulich <jbeulich@suse.com>,
Ian Jackson <Ian.Jackson@citrix.com>
Subject: Re: [PATCH 7/7] x86: add iommu_ops to map and unmap pages, and also to flush the IOTLB
Date: Mon, 26 Feb 2018 09:38:44 +0000 [thread overview]
Message-ID: <22f534f9457040598eaa906d1ab89526@AMSPEX02CL03.citrite.net> (raw)
In-Reply-To: <AADFC41AFE54684AB9EE6CBC0274A5D19101851E@SHSMSX101.ccr.corp.intel.com>
> -----Original Message-----
> From: Tian, Kevin [mailto:kevin.tian@intel.com]
> Sent: 24 February 2018 03:02
> To: Paul Durrant <Paul.Durrant@citrix.com>; xen-devel@lists.xenproject.org
> Cc: Stefano Stabellini <sstabellini@kernel.org>; Wei Liu
> <wei.liu2@citrix.com>; George Dunlap <George.Dunlap@citrix.com>;
> Andrew Cooper <Andrew.Cooper3@citrix.com>; Ian Jackson
> <Ian.Jackson@citrix.com>; Tim (Xen.org) <tim@xen.org>; Jan Beulich
> <jbeulich@suse.com>
> Subject: RE: [Xen-devel] [PATCH 7/7] x86: add iommu_ops to map and
> unmap pages, and also to flush the IOTLB
[snip]
>
> >
> > ...so my plan is that the dom0 API picks a bfn, does the mapping and then
> > passes the bfn back to the caller.
> >
>
> A curious question. How to pass the domid from XenGT to pvIOMMU
> driver so the latter knows whether it's a local or remote mapping?
> Ideally pvIOMMU driver is registered to Linux IOMMU core layer,
> of which all existing API wrappers are only for local mapping today...
>
It may well be that, for remote mapping, that layer is just not appropriate. I'll look into that when I get to that stage.
Cheers,
Paul
> Thanks
> Kevin
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next prev parent reply other threads:[~2018-02-26 9:38 UTC|newest]
Thread overview: 68+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-02-12 10:47 [PATCH 0/7] paravirtual IOMMU interface Paul Durrant
2018-02-12 10:47 ` [PATCH 1/7] iommu: introduce the concept of BFN Paul Durrant
2018-03-15 13:39 ` Jan Beulich
2018-03-16 10:31 ` Paul Durrant
2018-03-16 10:39 ` Jan Beulich
2018-02-12 10:47 ` [PATCH 2/7] iommu: make use of type-safe BFN and MFN in exported functions Paul Durrant
2018-03-15 15:44 ` Jan Beulich
2018-03-16 10:26 ` Paul Durrant
2018-07-10 14:29 ` George Dunlap
2018-07-10 14:34 ` Jan Beulich
2018-07-10 14:37 ` Andrew Cooper
2018-07-10 14:58 ` George Dunlap
2018-07-10 15:19 ` Jan Beulich
2018-02-12 10:47 ` [PATCH 3/7] iommu: push use of type-safe BFN and MFN into iommu_ops Paul Durrant
2018-03-15 16:15 ` Jan Beulich
2018-03-16 10:22 ` Paul Durrant
2018-02-12 10:47 ` [PATCH 4/7] vtd: add lookup_page method to iommu_ops Paul Durrant
2018-03-15 16:54 ` Jan Beulich
2018-03-16 10:19 ` Paul Durrant
2018-03-16 10:28 ` Jan Beulich
2018-03-16 10:41 ` Paul Durrant
2018-02-12 10:47 ` [PATCH 5/7] public / x86: introduce __HYPERCALL_iommu_op Paul Durrant
2018-02-13 6:43 ` Tian, Kevin
2018-02-13 9:22 ` Paul Durrant
2018-02-23 5:17 ` Tian, Kevin
2018-02-23 9:41 ` Paul Durrant
2018-02-24 2:57 ` Tian, Kevin
2018-02-26 9:57 ` Paul Durrant
2018-02-26 11:55 ` Tian, Kevin
2018-02-27 5:05 ` Tian, Kevin
2018-02-27 9:32 ` Paul Durrant
2018-02-28 2:53 ` Tian, Kevin
2018-02-28 8:55 ` Paul Durrant
2018-03-16 12:25 ` Jan Beulich
2018-06-07 11:42 ` Paul Durrant
2018-06-07 13:21 ` Jan Beulich
2018-06-07 13:45 ` George Dunlap
2018-06-07 14:06 ` Paul Durrant
2018-06-07 14:21 ` Ian Jackson
2018-06-07 15:21 ` Paul Durrant
2018-06-07 15:41 ` Jan Beulich
2018-02-12 10:47 ` [PATCH 6/7] x86: add iommu_op to query reserved ranges Paul Durrant
2018-02-13 6:51 ` Tian, Kevin
2018-02-13 9:25 ` Paul Durrant
2018-02-23 5:23 ` Tian, Kevin
2018-02-23 9:02 ` Jan Beulich
2018-03-19 14:10 ` Jan Beulich
2018-03-19 15:13 ` Paul Durrant
2018-03-19 16:30 ` Jan Beulich
2018-03-19 15:13 ` Jan Beulich
2018-03-19 15:36 ` Paul Durrant
2018-03-19 16:31 ` Jan Beulich
2018-02-12 10:47 ` [PATCH 7/7] x86: add iommu_ops to map and unmap pages, and also to flush the IOTLB Paul Durrant
2018-02-13 6:55 ` Tian, Kevin
2018-02-13 9:55 ` Paul Durrant
2018-02-23 5:35 ` Tian, Kevin
2018-02-23 9:35 ` Paul Durrant
2018-02-24 3:01 ` Tian, Kevin
2018-02-26 9:38 ` Paul Durrant [this message]
2018-03-19 15:11 ` Jan Beulich
2018-03-19 15:34 ` Paul Durrant
2018-03-19 16:49 ` Jan Beulich
2018-03-19 16:57 ` Paul Durrant
2018-03-20 8:11 ` Jan Beulich
2018-03-20 9:32 ` Paul Durrant
2018-03-20 9:49 ` Jan Beulich
2018-02-13 6:21 ` [PATCH 0/7] paravirtual IOMMU interface Tian, Kevin
2018-02-13 9:18 ` Paul Durrant
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