On Tue, Apr 6, 2021 at 9:54 AM Corey Minyard <cminy...@mvista.com> wrote: > > On Tue, Apr 06, 2021 at 09:04:35AM -0700, Patrick Venture wrote: > > Corey; > > > > I saw you have a branch that is working on adding smbus IPMI support > > (the ssif approach). > > > > Can you provide details on the status of this work? > > There is already an SMBus BMC device that can sit on the I2C bus. It's > in mainstream qemu now.
This device: github.com/qemu/qemu/blob/master/hw/ipmi/smbus_ipmi.c So this device gets added to the BMC's i2c, and it's just that there's no host-side support to then master this device? in a multi-node simulation. I'm asking because my team is currently working on implementing ssif support (between two nodes). > > It does not have smbus alert support, though. I have patches for that, > but qemu doesn't have a flexibly general interrupt infrastructure, so I > hacked something in, and it's likely to be contentious. The trouble is > that the interrupt is disconnected from any real device, and qemu > doesn't handle that very well. And like the other things, I really only > created it for my testing. > > For doing what you are trying to do, I don't think you need any special > support on either side for SSIF to work. > > -corey > > > > > Patrick
