[Qemu-devel] [PATCH 0/3] fw_cfg: add DMA operations

[marcandre . lureau]

From: Marc-André Lureau <address@hidden>

Hi,

This series brings DMA operations support to the fw_cfg kernel module.
There is a few FIXME that I don't know how to improve.

The 'write' operation is only meant as a proof-of-concept, since some
qemu firmware maintainers are strongly against the usage of this
operation by the kernel/user-space.

Marc-André Lureau (3):
  fw_cfg: add DMA register
  fw_cfg: do DMA read operation
  fw_cfg: add DMA write operation proof-of-concept

 drivers/firmware/qemu_fw_cfg.c | 240 ++++++++++++++++++++++++++++++++++++-----
 1 file changed, 211 insertions(+), 29 deletions(-)

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2.12.0.191.gc5d8de91d