Re: [Qemu-devel] [RFC PATCH 3/8] iommu: Introduce iommu do invalidate API function

2017-05-18 Thread Liu, Yi L
On Fri, May 12, 2017 at 03:59:24PM -0600, Alex Williamson wrote: > On Wed, 26 Apr 2017 18:12:00 +0800 > "Liu, Yi L" wrote: > Hi Alex, Pls refer to the open I mentioned in this email, I need your comments on it to prepare the formal patchset for SVM virtualization. Thx. > > From: "Liu, Yi L" >

Re: [Qemu-devel] [RFC PATCH 3/8] iommu: Introduce iommu do invalidate API function

2017-05-12 Thread Alex Williamson
On Wed, 26 Apr 2017 18:12:00 +0800 "Liu, Yi L" wrote: > From: "Liu, Yi L" > > When a SVM capable device is assigned to a guest, the first level page > tables are owned by the guest and the guest PASID table pointer is > linked to the device context entry of the physical IOMMU. > > Host IOMMU d

[Qemu-devel] [RFC PATCH 3/8] iommu: Introduce iommu do invalidate API function

2017-04-26 Thread Liu, Yi L
From: "Liu, Yi L" When a SVM capable device is assigned to a guest, the first level page tables are owned by the guest and the guest PASID table pointer is linked to the device context entry of the physical IOMMU. Host IOMMU driver has no knowledge of caching structure updates unless the guest i