Re: [vfio-users] P2P DMA between endpoint devices inside a VM

On Tue, 8 Sep 2020 11:31:42 -0700 Maran Wilson wrote: > On Tue, Sep 8, 2020 at 10:22 AM Alex Williamson > wrote: > > > On Tue, 8 Sep 2020 09:59:46 -0700 > > Maran Wilson wrote: > > > > > I'm trying to use the vfio-pci driver to pass-through two PCIe endpoint > > > devices into a VM. On the

Re: [vfio-users] P2P DMA between endpoint devices inside a VM

On Tue, Sep 8, 2020 at 10:22 AM Alex Williamson wrote: > On Tue, 8 Sep 2020 09:59:46 -0700 > Maran Wilson wrote: > > > I'm trying to use the vfio-pci driver to pass-through two PCIe endpoint > > devices into a VM. On the host, each of these PCIe endpoint devices is in > > its own IOMMU group.

Re: [vfio-users] P2P DMA between endpoint devices inside a VM

On Tue, 8 Sep 2020 09:59:46 -0700 Maran Wilson wrote: > I'm trying to use the vfio-pci driver to pass-through two PCIe endpoint > devices into a VM. On the host, each of these PCIe endpoint devices is in > its own IOMMU group. From inside the VM, I would like to perform P2P DMA > operations. So

[vfio-users] P2P DMA between endpoint devices inside a VM

I'm trying to use the vfio-pci driver to pass-through two PCIe endpoint devices into a VM. On the host, each of these PCIe endpoint devices is in its own IOMMU group. From inside the VM, I would like to perform P2P DMA operations. So basically, programming the DMA engine of one of the devices to

[vfio-users] uas drives connected to passed-through xhci controller hang in Windows guest

Hi, I've been having issues with uas (usb attached scsi) drive that is connected to a pci passed-through xhci controller (ASM1142). The drive hangs and cannot really be used. The combination seems to work fine on bare-metal. bot/msc drives work fine. I tried to install the XHCI driver from