[Qemu-devel] [PATCH 0/7] Fix PM SMBus and add IPMI over SMBus

[minyard@acm.org]

This series of patches fixes a bunch of issues in the PM SMBus driver
for x86 chips so that IPMI over SMBus can actually work (and other
things can work, too, I have a number of devices that I've added
later, and there's the eeprom, of course).

It then adds an IPMI device that sits on I2C and fixes up the ACPI
handling so it can be added to the ACPI tables.

This is mostly for comment for now, though I'd be happy for it to
be merged if it's good.  Yeah, not likely at this point.  I'd like
to add tests, but that would be a separate patch anyway.  Tests
will be fairly complicated as there doesn't appear to be any
tests for the PM SMBus.

IPMI over SMBus is not common now, but I've seen some new systems
coming out with it outside of the Intel world.  I've needed
a test bed to reproduce bugs and test out new capabilities, but
other systems may need it in the future.

Later in my queue is support for an SMBus alert device (allowing
a shared interrupt from SMBus devices) and support for a couple of
I2C bus multiplexers.  If you are interested, you can see my queue
at the ever changing https://github.com/cminyard/qemu master-ipmi-rebase
branch.