Re: [PATCH v6 0/6] iommufd: Add nesting infrastructure (part 2/2)

2023-12-11 Thread Suthikulpanit, Suravee
On 12/11/2023 8:05 PM, Jason Gunthorpe wrote: On Mon, Dec 11, 2023 at 08:36:46PM +0800, Yi Liu wrote: On 2023/12/11 10:29, Tian, Kevin wrote: From: Jason Gunthorpe Sent: Saturday, December 9, 2023 9:47 AM What is in a Nested domain: Intel: A single IO page table refereed to by a PASID e

Re: [PATCH v6 0/6] iommufd: Add nesting infrastructure (part 2/2)

2023-12-11 Thread Suthikulpanit, Suravee
On 12/9/2023 8:47 AM, Jason Gunthorpe wrote: On Fri, Nov 17, 2023 at 05:07:11AM -0800, Yi Liu wrote: Take Intel VT-d as an example, the stage-1 translation table is I/O page table. As the below diagram shows, guest I/O page table pointer in GPA (guest physical address) is passed to host and