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
---
MdeModulePkg/Include/Protocol/IoMmu.h | 132
MdeModulePkg/MdeModulePkg.dec | 3 +
2 file
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 o
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
> Signed-off-by: Jiewen Yao
Hello all,
It would be very useful for a IOMMU protocol such as
l-boun...@lists.01.org] On Behalf Of Ard
> Biesheuvel
> Sent: Tuesday, March 28, 2017 3:39 PM
> To: Yao, Jiewen
> Cc: Ni, Ruiyu ; Leo Duran ; edk2-
> de...@lists.01.org; Brijesh Singh
> Subject: Re: [edk2] [PATCH 1/3] MdeModulePkg/Include: Add IOMMU protocol
> definition.
>
amd.com>>; edk2-
> de...@lists.01.org<mailto:de...@lists.01.org>; Brijesh Singh
> mailto:brijesh.si...@amd.com>>
> Subject: Re: [edk2] [PATCH 1/3] MdeModulePkg/Include: Add IOMMU protocol
> definition.
>
> On 25 March 2017 at 09:28, Jiewen Yao
> mailto:jie
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 would currently lead t
Thanks for the info.
Comment inline.
From: Ard Biesheuvel [mailto:ard.biesheu...@linaro.org]
Sent: Wednesday, March 29, 2017 10:23 PM
To: Yao, Jiewen
Cc: Kinney, Michael D ; Ni, Ruiyu
; Leo Duran ; edk2-devel@lists.01.org;
Brijesh Singh
Subject: Re: [edk2] [PATCH 1/3] MdeModulePkg/Include
ey, Michael D ; Ni, Ruiyu
> ; Leo Duran ;
> edk2-devel@lists.01.org; Brijesh Singh
> Subject: Re: [edk2] [PATCH 1/3] MdeModulePkg/Include: Add IOMMU protocol
> definition.
>
>
>
> On 29 March 2017 at 00:45, Yao, Jiewen wrote:
>> Agree. That is a good idea.
>>
>
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, one for graphic and one f
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
Cc: Ni, Ruiyu ; edk2-devel@lists.01.org; Leo Duran
Subject: Re: [edk2] [PATCH 1/3] MdeModulePkg/Include: Add IOMMU protocol
definition.
Hello Jiewen,
On 29
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