Re: [Qemu-devel] Why is SeaBIOS used with -kernel?

[Richard W.M. Jones]

On Fri, Apr 01, 2016 at 10:11:46AM +0200, Paolo Bonzini wrote:
> 
> 
> On 01/04/2016 10:02, Richard W.M. Jones wrote:
> >> > echo -e 
> >> > 'CONFIG_USB=n\nCONFIG_DRIVES=n\nCONFIG_KEYBOARD=n\nCONFIG_MOUSE=n\nCONFIG_WRITABLE_UPPERMEMORY=y\nCONFIG_TCGBIOS=n\nCONFIG_PIRTABLE=n\nCONFIG_MPTABLE=n\nCONFIG_SMBIOS=n\nCONFIG_ACPI=n\nCONFIG_DEBUG_LEVEL=0'
> >> >  > .config
> >> > make olddefconfig
> >> > make
> >> > 
> >> > What time do you get with the above stripped down seabios (the
> >> > generated bios is in out/bios.bin)?
> > It's a bit unexpected: The kernel (not SeaBIOS) crashes or hangs
> > during virtio-scsi sensing.  See attached.  Any idea what I need to
> > enable?
> 
> At least ACPI (I would also add mptable and SMBIOS).

Found it: only CONFIG_MPTABLE=y was necessary.  It boots with:

# CONFIG_PIRTABLE is not set
CONFIG_MPTABLE=y
# CONFIG_SMBIOS is not set
# CONFIG_ACPI is not set

Rich.

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Richard Jones, Virtualization Group, Red Hat http://people.redhat.com/~rjones
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