[v2,0/3] xen/virtio: support grant based virtio on x86

Message

Jürgen Groß Oct. 7, 2022, 6:41 a.m. UTC

Add basic support for virtio with grants on x86 by defaulting the
backend to be in dom0 in the case the guest kernel was built with
CONFIG_XEN_VIRTIO_FORCE_GRANT.

Juergen Gross (3):
  xen/virtio: restructure xen grant dma setup
  xen/virtio: use dom0 as default backend for
    CONFIG_XEN_VIRTIO_FORCE_GRANT
  xen/virtio: enable grant based virtio on x86

 arch/x86/xen/enlighten_hvm.c |  2 +-
 arch/x86/xen/enlighten_pv.c  |  2 +-
 drivers/xen/grant-dma-ops.c  | 83 +++++++++++++++++++++++++-----------
 include/xen/xen-ops.h        |  6 +++
 4 files changed, 65 insertions(+), 28 deletions(-)