Re: [Qemu-devel] [PATCH v6 2/2] gen_pcie_root_port: Add ACS (Access Control Services) capability

2019-02-21 Thread Alex Williamson
On Thu, 21 Feb 2019 19:13:23 +0100 Knut Omang wrote: > Claim ACS support in the generic PCIe root port to allow > passthrough of individual functions of a device to different > guests (in a nested virt.setting) with VFIO. > Without this patch, all functions of a device, such as all VFs of > an SR

[Qemu-devel] [PATCH v6 2/2] gen_pcie_root_port: Add ACS (Access Control Services) capability

2019-02-21 Thread Knut Omang
Claim ACS support in the generic PCIe root port to allow passthrough of individual functions of a device to different guests (in a nested virt.setting) with VFIO. Without this patch, all functions of a device, such as all VFs of an SR/IOV device, will end up in the same IOMMU group. A similar situa