This switches virtio to use the DMA API unconditionally. I'm sure it breaks things, but it seems to work on x86 using virtio-pci, with and without Xen, and using both the modern 1.0 variant and the legacy variant. Changes from v2: - Fix really embarrassing bug. This version actually works. Changes from v1: - Fix an endian conversion error causing a BUG to hit. - Fix a DMA ordering issue (swiotlb=force works now). - Minor cleanups. Andy Lutomirski (3): virtio_net: Stop doing DMA from the stack virtio_ring: Support DMA APIs virtio_pci: Use the DMA API drivers/net/virtio_net.c | 53 +++++++---- drivers/virtio/Kconfig | 2 +- drivers/virtio/virtio_pci_common.h | 3 +- drivers/virtio/virtio_pci_legacy.c | 19 +++- drivers/virtio/virtio_pci_modern.c | 34 +++++-- drivers/virtio/virtio_ring.c | 187 ++++++++++++++++++++++++++++++------- tools/virtio/linux/dma-mapping.h | 17 ++++ 7 files changed, 246 insertions(+), 69 deletions(-) create mode 100644 tools/virtio/linux/dma-mapping.h -- 2.4.3 _______________________________________________ Virtualization mailing list Virtualization@xxxxxxxxxxxxxxxxxxxxxxxxxx https://lists.linuxfoundation.org/mailman/listinfo/virtualization
