QEMU DMA: Add DMA write capability

This allows BIOS to write data back to QEMU using the DMA interface and
provides a higher-level abstraction to write to a fw_cfg file

Signed-off-by: Ben Warren <ben@skyportsystems.com>
Reviewed-by: Laszlo Ersek <lersek@redhat.com>
Reviewed-by: Igor Mammedov <imammedo@redhat.com>
(cherry picked from commit f991822f24adbeea519495dd8fe2d8ca7ed47291)
2 files changed
tree: fb7397f3a588c4a191853ba4baf15da6ed8ce468
  1. .gitignore
  2. COPYING
  3. COPYING.LESSER
  4. Makefile
  5. README
  6. docs/
  7. scripts/
  8. src/
  9. vgasrc/