[SeaBIOS] [PATCH V3 0/2] hw/pci: reserve IO and mem for pci-2-pci bridges with no devices attached
Marcel Apfelbaum
marcel.a at redhat.com
Thu Apr 10 15:29:39 CEST 2014
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
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