[Qemu-devel] [RFC 0/7] fw_cfg dma interface

[Marc Marí]

Work done by Gerd Hoffmann for ARM. Extended to be used in x86 platforms

These patches, with the support in SeaBIOS (patches in the SeaBIOS
mailing list) make the Linux kernel setup and boot approximately 10x
faster.

TODO:
 * Optimizations. For example, use memcpy instead of a loop if the
   transaction is big
 * Is 0xfef00000 a good address? Is there any better address? Is it
   possible to not make it hardcoded (and can be read by the BIOS)?
 * Maybe have both DMA and IO interfaces enabled, to improve
   compatibility?

Gabriel L. Somlo (1):
  fw_cfg: document fw_cfg_modify_iXX() update functions

Gerd Hoffmann (4):
  fw_cfg dma interface
  fw_cfg dma: adapt to vmstate changes
  enable fw_cfg dma for arm virt
  fw_cfg file sort

Marc Marí (2):
  Add offset register to fw_cfg DMA interface
  fw_cfg DMA for x86

 docs/specs/fw_cfg.txt     |  52 ++++++++++++
 hw/arm/virt.c             |  11 ++-
 hw/i386/pc.c              |  21 ++++-
 hw/i386/pc_piix.c         |  25 +++++-
 hw/i386/pc_q35.c          |  26 +++++-
 hw/nvram/fw_cfg.c         | 199 +++++++++++++++++++++++++++++++++++++++++++---
 include/hw/i386/pc.h      |   1 +
 include/hw/nvram/fw_cfg.h |   5 +-
 8 files changed, 318 insertions(+), 22 deletions(-)

-- 
2.4.3