qemu-devel.nongnu.org archive mirror
 help / color / mirror / Atom feed
* [Qemu-devel] [PATCH 0/3] fw_cfg: add DMA operations
@ 2017-04-28 12:45 marcandre.lureau
  2017-04-28 12:45 ` [Qemu-devel] [PATCH 1/3] fw_cfg: add DMA register marcandre.lureau
                   ` (2 more replies)
  0 siblings, 3 replies; 5+ messages in thread
From: marcandre.lureau @ 2017-04-28 12:45 UTC (permalink / raw)
  To: qemu-devel; +Cc: somlo, linux-kernel, mst, Marc-André Lureau

From: Marc-André Lureau <marcandre.lureau@redhat.com>

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(-)

-- 
2.12.0.191.gc5d8de91d

^ permalink raw reply	[flat|nested] 5+ messages in thread

end of thread, other threads:[~2017-05-04  2:42 UTC | newest]

Thread overview: 5+ messages (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
2017-04-28 12:45 [Qemu-devel] [PATCH 0/3] fw_cfg: add DMA operations marcandre.lureau
2017-04-28 12:45 ` [Qemu-devel] [PATCH 1/3] fw_cfg: add DMA register marcandre.lureau
2017-04-28 12:45 ` [Qemu-devel] [PATCH 2/3] fw_cfg: do DMA read operation marcandre.lureau
2017-05-04  2:39   ` [Qemu-devel] [lkp-robot] [fw_cfg] 9f0f3ea314: BUG:KASAN:null-ptr-deref_on_address kernel test robot
2017-04-28 12:45 ` [Qemu-devel] [PATCH 3/3] fw_cfg: add DMA write operation proof-of-concept marcandre.lureau

This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).