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

[Richard W.M. Jones]

On Thu, Mar 31, 2016 at 06:44:32PM -0400, Kevin O'Connor wrote:
> I think you'll find that if you compile out some features from
> SeaBIOS, it will be of a similar speed to that "minimal BIOS".  Try
> this:
> 
> cd /path/to/seabios/
> 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?

Rich.

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crash.txt
Description: Text document