[PATCH 0/2] Change memory-mapped I/O management for Hyper-V paravirt

From: jakeo
Date: Thu Jun 25 2015 - 13:01:14 EST


From: Jake Oshins <jakeo@xxxxxxxxxxxxx>

This patch series changes the way that hv_vmbus searches for ranges of
memory-mapped I/O space (MMIO) which can be used by its children. The old
way just found the one and only range above 4GB. This one makes all ranges
exposed in the VM's firmware potential candidates. It also moves the code
which chooses ranges from hyperv_fb (the video front-end driver for Hyper-V)
to hv_vmbus.

KY Srinivasan asked me to split this off from the previously submitted patch
series which introduced another front-end driver which needs this, because this
part stands on its own and constitutes a useful change in behavior.

Jake Oshins (2):
drivers:hv: Modify hv_vmbus to search for all MMIO ranges available.
drivers:hv: Move MMIO range picking from hyper_fb to hv_vmbus

drivers/hv/vmbus_drv.c | 204 ++++++++++++++++++++++++++++++++++------
drivers/video/fbdev/hyperv_fb.c | 46 +++++----
include/linux/hyperv.h | 7 +-
3 files changed, 200 insertions(+), 57 deletions(-)

--
1.9.1

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