Re: [Bochs-developers] [PATCH][BIOS] Add BCV option rom in boot menu

[Anthony Liguori <anthony@codemonkey.ws>]

Sebastian Herbszt wrote:
> Laurent Vivier wrote:
>> This patch allows to select and boot from an option ROM
>> with a Boot Connection Vector (BCV) entry.
>>
>> The BIOS detects the BCV option ROM and adds it to the IPL table, and 
>> then
>> you are able to select it to boot.
>>
>> This patch has been tested with Bochs BIOS version from the KVM 
>> source tree
>> and a gPXE ROM modified to be a BCV one.
>
> Any plans to convert extboot into a compatible option rom?

I think the plan is to replace extboot with gPXE, and load it by default 
in QEMU.  Since it supports BCV and BEV, we can rely on passing a boot 
index to choose which device to boot from.

I was thinking about what to do about SCSI boot support.  We could add 
an LSI driver to gPXE too.  That seems like a bit much though.  We could 
add a special virtio transport for gPXE and then reuse virtio-blk to 
boot from arbitrary devices.

Regards,

Anthony Liguori