|
From: | Yi Liu |
Subject: | Re: [RFC 00/18] vfio: Adopt iommufd |
Date: | Tue, 10 May 2022 22:08:48 +0800 |
User-agent: | Mozilla/5.0 (X11; Linux x86_64; rv:91.0) Gecko/20100101 Firefox/91.0 Thunderbird/91.7.0 |
On 2022/5/10 20:45, Jason Gunthorpe wrote:
On Tue, May 10, 2022 at 08:35:00PM +0800, Zhangfei Gao wrote:Thanks Yi and Eric, Then will wait for the updated iommufd kernel for the PCI MMIO region. Another question, How to get the iommu_domain in the ioctl.The ID of the iommu_domain (called the hwpt) it should be returned by the vfio attach ioctl.
yes, hwpt_id is returned by the vfio attach ioctl and recorded in qemu. You can query page table related capabilities with this id. https://lore.kernel.org/kvm/20220414104710.28534-16-yi.l.liu@intel.com/ -- Regards, Yi Liu
[Prev in Thread] | Current Thread | [Next in Thread] |