search for: device_header

This is the initial proposal for a paravirtualized IOMMU device using virtio transport. It contains a description of the device, a Linux driver, and a toy implementation in kvmtool. With this prototype, you can translate DMA to guest memory from emulated (virtio), or passed-through (VFIO) devices. In its simplest form, implemented here, the device handles map/unmap requests from the guest. Future

This is the initial proposal for a paravirtualized IOMMU device using virtio transport. It contains a description of the device, a Linux driver, and a toy implementation in kvmtool. With this prototype, you can translate DMA to guest memory from emulated (virtio), or passed-through (VFIO) devices. In its simplest form, implemented here, the device handles map/unmap requests from the guest. Future

...100644 --- a/include/kvm/pci.h +++ b/include/kvm/pci.h @@ -4,6 +4,7 @@ #include <linux/types.h> #include <linux/kvm.h> #include <linux/pci_regs.h> +#include <linux/virtio_pci.h> #include <endian.h> #include "kvm/devices.h" @@ -81,7 +82,12 @@ struct pci_device_header { u8 min_gnt; u8 max_lat; struct msix_cap msix; - u8 empty[136]; /* Rest of PCI config space */ + struct virtio_pci_cap common_cap; + struct virtio_pci_notify_cap notify_cap; + struct virtio_pci_cap isr_cap; + struct virtio_pci_cap device_cap; + struct virtio_pci_cfg_cap pci_cap; + u8 emp...

...100644 --- a/include/kvm/pci.h +++ b/include/kvm/pci.h @@ -4,6 +4,7 @@ #include <linux/types.h> #include <linux/kvm.h> #include <linux/pci_regs.h> +#include <linux/virtio_pci.h> #include <endian.h> #include "kvm/devices.h" @@ -81,7 +82,12 @@ struct pci_device_header { u8 min_gnt; u8 max_lat; struct msix_cap msix; - u8 empty[136]; /* Rest of PCI config space */ + struct virtio_pci_cap common_cap; + struct virtio_pci_notify_cap notify_cap; + struct virtio_pci_cap isr_cap; + struct virtio_pci_cap device_cap; + struct virtio_pci_cfg_cap pci_cap; + u8 emp...