[Qemu-devel] [SeaBIOS] [PATCH V3 0/2] hw/pci: reserve IO and mem for pci-2-pci bridges with no devices attached

[Marcel Apfelbaum]

v2 -> v3:
 - Addressed Michael S. Tsirkin's comments:
   - I/O and Prefetchable Memory are optional. Do not allocate ranges
     if they are not implemented (2/2).
 - Note that 2/2 patch can be seen as a separate fix. However, it
   is related to ranges reservation.

v1 -> v2:
 - Thanks Gerd Hoffmann for the review.
 - Addressed Michael S. Tsirkin's comments:
   - Limit capabilities query to 256 iterations, to make sure we
     don't get into an infinite loop with a broken device.


If a pci-2-pci bridge supports hot-plug functionality but there are no devices
connected to it, reserve IO/mem in order to be able to attach devices
later. Do not waste space, use minimum allowed.

Marcel Apfelbaum (2):
  hw/pci: reserve IO and mem for pci-2-pci bridges with no devices
    attached
  hw/pci: check if pci2pci bridges implement optional limit registers

 src/fw/pciinit.c | 12 +++++-----
 src/hw/pci.c     | 67 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 src/hw/pci.h     | 10 +++++++++
 3 files changed, 82 insertions(+), 7 deletions(-)

-- 
1.8.3.1