Hi,
On 2019/12/17 10:36, Liu, Yi L wrote:
From: Liu, Yi L
Sent: Tuesday, December 17, 2019 10:26 AM
To: Lu Baolu ; Joerg Roedel ; David
Woodhouse ; Alex Williamson
Subject: RE: [PATCH v3 5/6] iommu/vt-d: Flush PASID-based iotlb for iova over
first
level
From: Lu Baolu [mailto:baolu
> From: Lu Baolu [mailto:baolu...@linux.intel.com]
> Sent: Tuesday, December 17, 2019 9:39 AM
> To: Liu, Yi L ; Joerg Roedel ; David
> Woodhouse ; Alex Williamson
>
> Subject: Re: [PATCH v3 5/6] iommu/vt-d: Flush PASID-based iotlb for iova over
> first
> level
>
>
> From: Liu, Yi L
> Sent: Tuesday, December 17, 2019 10:26 AM
> To: Lu Baolu ; Joerg Roedel ; David
> Woodhouse ; Alex Williamson
>
> Subject: RE: [PATCH v3 5/6] iommu/vt-d: Flush PASID-based iotlb for iova over
> first
> level
>
> > From: Lu Baolu [mailto:b
> From: Lu Baolu [mailto:baolu...@linux.intel.com]
> Sent: Tuesday, December 17, 2019 9:37 AM
> To: Liu, Yi L ; Joerg Roedel ; David
> Woodhouse ; Alex Williamson
>
> Subject: Re: [PATCH v3 5/6] iommu/vt-d: Flush PASID-based iotlb for iova over
> first
> level
>
>
Hi,
On 12/17/19 9:37 AM, Lu Baolu wrote:
You are right. I will change it accordingly. The logic should look
like:
if (domain attached to physical device)
flush_piotlb_with_RID2PASID()
else if (domain_attached_to_mdev_device)
flush_piotlb_with_default_pasid()
Both! so no "else" here
Hi again,
On 12/17/19 9:19 AM, Lu Baolu wrote:
Hi Yi,
On 12/15/19 5:22 PM, Liu, Yi L wrote:
Ok, let me explain more... default pasid is meaningful only when
the domain has been attached to a device as an aux-domain. right?
No exactly. Each domain has a specific default pasid, no matter norma
Hi Yi,
On 12/15/19 5:22 PM, Liu, Yi L wrote:
Ok, let me explain more... default pasid is meaningful only when
the domain has been attached to a device as an aux-domain. right?
No exactly. Each domain has a specific default pasid, no matter normal
domain (RID based) or aux-domain (PASID based).
Hi Baolu,
Please check replies below:
> From: Lu Baolu [mailto:baolu...@linux.intel.com]
> Sent: Saturday, December 14, 2019 11:24 AM
> To: Liu, Yi L ; Joerg Roedel ; David
> Woodhouse ; Alex Williamson
>
> Subject: Re: [PATCH v3 5/6] iommu/vt-d: Flush PASID-based iotlb for
Hi Liu Yi,
On 12/13/19 7:42 PM, Liu, Yi L wrote:
From: kvm-ow...@vger.kernel.org [mailto:kvm-ow...@vger.kernel.org] On Behalf
Of Lu Baolu
Sent: Wednesday, December 11, 2019 10:12 AM
To: Joerg Roedel ; David Woodhouse ;
Subject: [PATCH v3 5/6] iommu/vt-d: Flush PASID-based iotlb for iova over
Hi Allen,
> From: kvm-ow...@vger.kernel.org [mailto:kvm-ow...@vger.kernel.org] On Behalf
> Of Lu Baolu
> Sent: Wednesday, December 11, 2019 10:12 AM
> To: Joerg Roedel ; David Woodhouse ;
> Subject: [PATCH v3 5/6] iommu/vt-d: Flush PASID-based iotlb for iova over
> first level
When software has changed first-level tables, it should invalidate
the affected IOTLB and the paging-structure-caches using the PASID-
based-IOTLB Invalidate Descriptor defined in spec 6.5.2.4.
Signed-off-by: Lu Baolu
---
drivers/iommu/dmar.c| 41 ++
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