[Qemu-devel] Re: [PATCHv6 00/16] boot order specification

[Gleb Natapov]

On Mon, Nov 29, 2010 at 11:19:29AM +0100, Gerd Hoffmann wrote:
>   Hi,
> 
> >>BTW are you actually aware of any option rom with multiple BCVs and, if
> >>yes, how those BCVs differ?
> >
> >Multiple BCVs - yes.  A SCSI card will define a BCV for each attached
> >drive.  I don't have a scsi card myself, but the support was added by
> >a user who ran into the problem first hand.
> 
> FYI: You can test with a virtual card ;)
> 
> lsi emulation in recent qemu versions is good enougth that the
> original boot rom runs.  You can fetch it here:
> 
> http://www.lsi.com/DistributionSystem/AssetDocument/files/support/ssp/sdms/Bios/lsi_bios.zip
> 
> qemu -drive if=scsi,file=$image -option-rom 8xx_64.rom
> 
> Gives you a list like this ...
> 
>   Press F12 for boot menu.
> 
>   Select boot device:
> 
>   1. AHCI/0: QEMU HARDDISK ATA-7 Hard-Disk (8192 MiBytes)
>   2. #20 ID00 LUN0 QEMU     QEMU HARD
>   3. #20 ID01 LUN0 QEMU     QEMU HARD
>   4. DVD/CD [ata1-0: QEMU DVD-ROM ATAPI-4 DVD/CD]
>   5. DVD/CD [AHCI/2: QEMU DVD-ROM ATAPI-4 DVD/CD]
>   6. gPXE (PCI 00:03.0)
> 
> ... where entries 2+3 are created by the scsi rom.
> 
Thanks! If BCVs created by optionrom are always sorted by target we can
even determine what BCV correspond to which device path.

--
                        Gleb.