Re: [RFC] kvmtool: add support for modern virtio-pci

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  Hi,

> Thanks for testing! I didn't even thing about seabios as a testing target.

Not surprising, support isn't upstream, ran into a bunch of issues[1][2]
last time I tried to combine the two, ran into some issues and nobody
seemed to care, so the seabios patches where just sitting in a branch in
my repo ...

> $ cat .config | grep 'KVMTOOL\|DEBUG'
> CONFIG_KVMTOOL=y
> CONFIG_DEBUG_LEVEL=9

Hmm, 'CONFIG_KVMTOOL=y > .config; make olddefconfig' should give you a
working configuration.

Setting 'CONFIG_DEBUG_LEVEL=9' is useful for trouble-shooting as it
makes the virtio drivers more verbose, but not mandatory to have.

Serial line support is needed to get output:

CONFIG_DEBUG_SERIAL=y
CONFIG_DEBUG_SERIAL_PORT=0x3f8

Also I think rom size must be 128k b/c kvmtool expects it to be that
way:

CONFIG_ROM_SIZE=128

But those are the defaults, and after "make olddefconfig" you should
already have them ...

cheers,
  Gerd

[1] kernel doesn't find pci (can be worked around by tweaking kernel
    command line in boot loader config).
[2] kernel virtio drivers fail to initialize (probably device reset
    not working properly).


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