From: edk2-devel [mailto:edk2-devel-boun...@lists.01.org] On Behalf Of Ard
Biesheuvel
Sent: Tuesday, May 2, 2017 5:56 PM
To: Yao, Jiewen <jiewen@intel.com>
Cc: Ni, Ruiyu <ruiyu...@intel.com>; edk2-devel@lists.01.org; Leo Duran
<leo.du...@amd.com>
Subject: Re: [edk2] [PATCH
Hello Jiewen,
On 29 April 2017 at 14:48, Jiewen Yao wrote:
> This protocol is to abstract DMA access from IOMMU.
> 1) Intel "DMAR" ACPI table.
> 2) AMD "IVRS" ACPI table
> 3) ARM "IORT" ACPI table.
>
> There might be multiple IOMMU engines on one platform.
> For example,
This protocol is to abstract DMA access from IOMMU.
1) Intel "DMAR" ACPI table.
2) AMD "IVRS" ACPI table
3) ARM "IORT" ACPI table.
There might be multiple IOMMU engines on one platform.
For example, one for graphic and one for rest PCI devices
(such as ATA/USB).
All IOMMU engines are reported by
Yao, Jiewen <jiewen@intel.com>
> Cc: Kinney, Michael D <michael.d.kin...@intel.com>; Ni, Ruiyu
> <ruiyu...@intel.com>; Leo Duran <leo.du...@amd.com>;
> edk2-devel@lists.01.org; Brijesh Singh <brijesh.si...@amd.com>
> Subject: Re: [edk2] [PATCH 1/3] Md
.du...@amd.com>; edk2-devel@lists.01.org;
Brijesh Singh <brijesh.si...@amd.com>
Subject: Re: [edk2] [PATCH 1/3] MdeModulePkg/Include: Add IOMMU protocol
definition.
On 29 March 2017 at 00:45, Yao, Jiewen
<jiewen@intel.com<mailto:jiewen@intel.com>> wrote:
> A
On 29 March 2017 at 00:45, Yao, Jiewen wrote:
> Agree. That is a good idea.
>
>
>
> I will add that in V2 patch.
>
Hello Jiewen,
As a bit of background, what I have in mind is an enhancement of the
PCI root bridge I/O allocate, map and unmap methods so that situations
that
: Ni, Ruiyu <ruiyu...@intel.com>; Leo Duran <leo.du...@amd.com>;
edk2-devel@lists.01.org; Brijesh Singh <brijesh.si...@amd.com>
Subject: RE: [edk2] [PATCH 1/3] MdeModulePkg/Include: Add IOMMU protocol
definition.
Ard,
I agree. And I think the IOMMU protocol should also support
@amd.com>
> Subject: Re: [edk2] [PATCH 1/3] MdeModulePkg/Include: Add IOMMU protocol
> definition.
>
> On 25 March 2017 at 09:28, Jiewen Yao <jiewen@intel.com> wrote:
> > This protocol is to abstract IOMMU access.
> >
> > Cc: Ruiyu Ni <ruiyu...@intel.com
On 25 March 2017 at 09:28, Jiewen Yao wrote:
> This protocol is to abstract IOMMU access.
>
> Cc: Ruiyu Ni
> Cc: Leo Duran
> Cc: Brijesh Singh
> Contributed-under: TianoCore Contribution Agreement 1.0
>
This protocol is to abstract IOMMU access.
Cc: Ruiyu Ni
Cc: Leo Duran
Cc: Brijesh Singh
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Jiewen Yao
---
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