[Qemu-devel] [PATCH v3 0/8] Add virtio-mmio and use it in vexpress

[Peter Maydell <peter.maydell@linaro.org>]

This patch series adds an implementation of the virtio-mmio
transport, and uses it in the vexpress-a9 and vexpress-a15
board models.

The basic idea is that the board instantiates some transports,
the user can create backends which automatically plug into them
(via -device virtio-blk-backend and the like), and we tell the
guest kernel about them using a new arm/boot hook that lets
the board modify the user's device tree blob.

Changes v1->v2:
 * move the 'is guest provided queue size too large?' check
   from virtio-mmio into the core virtio 'set_num' function
 * rebase (including adding owner parameter to memory region
   init call in virtio-mmio.c)
Changes v2->v3:
 * drop the overcomplicated error return encoding from
   qemu_devtree_setprop_sized_cells() and just catch
   "user specified ram size too big for dtb" in boot.c

Peter Maydell (8):
  device_tree: Add qemu_devtree_setprop_sized_cells() utility functions
  arm/boot: Use qemu_devtree_setprop_sized_cells()
  virtio: Add support for guest setting of queue size
  virtio: Support transports which can specify the vring alignment
  virtio: Implement MMIO based virtio transport
  arm/boot: Allow boards to modify the FDT blob
  vexpress: Make VEDBoardInfo extend arm_boot_info
  vexpress: Add virtio-mmio transports

 device_tree.c                  |   33 ++++
 hw/arm/boot.c                  |   34 ++--
 hw/arm/vexpress.c              |  128 ++++++++++--
 hw/virtio/Makefile.objs        |    1 +
 hw/virtio/virtio-mmio.c        |  421 ++++++++++++++++++++++++++++++++++++++++
 hw/virtio/virtio.c             |   40 +++-
 include/hw/arm/arm.h           |    4 +
 include/hw/virtio/virtio-bus.h |    6 +
 include/hw/virtio/virtio.h     |    2 +
 include/sysemu/device_tree.h   |   59 ++++++
 10 files changed, 689 insertions(+), 39 deletions(-)
 create mode 100644 hw/virtio/virtio-mmio.c

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1.7.9.5