Re: [coreboot] SeaBIOS boot order / can't boot from USB

[Matt DeVillier]

yes, just enumerate all ports/hubs.  here's mine:

https://github.com/MattDevo/coreboot/blob/master/cbfs/bootorder.usb

if there's an impact on boot time its imperceptible.  What can slow things
down are connected devices which don't initialize/respond to queries within
the USB spec, but this is regardless of their presence in the bootorder file

On Sat, Dec 2, 2017 at 12:16 PM, Hal Martin  wrote:
> Hi Matt,
>
> That's a great tip, thanks for the link!
>
> Looking at the file, it seems I would just specify every USB port from the
> PCH EHCI/xHCI controllers.
>
> Do you know if this slows down boot noticeably if there are USB devices
> attached which aren't bootable (e.g. keyboard)? Or the case where there are
> potentially bootable devices (e.g. mass storage) but which lack a
> bootloader in the MBR?
>
> I'll be back with results once I've done some testing.
>
> Thanks again,
> Hal
>
> On Sat, Dec 2, 2017 at 7:08 PM, Matt DeVillier 
> wrote:
> > Hal,
> >
> > your USB controllers are at 14.0 and 1d.0, so your bootorder file needs
> > to enumerate all devices attached to said controllers.  I'm not sure how
> > many devices can be attached to each for IvyBridge, but here's the
> > bootorder file Google uses for reference:
> >
> > https://chromium.googlesource.com/chromiumos/third_party/sea
> > bios/+/firmware-eve-9584.B/chromeos/bootorder
> >
> > HTH,
> > Matt
> >
> > On Sat, Dec 2, 2017 at 2:09 AM, Hal Martin  wrote:
> > > Hi all,
> > >
> > > I'd like to learn more about SeaBIOS boot order, but unfortunately I
> > > wasn't able to find the answer to my question on the wiki page:
> > > https://www.coreboot.org/SeaBIOS#Configuring_boot_order
> > >
> > > I would like to add a bootscript for SeaBIOS to search for USB boot
> > > devices before falling back to the hdd or PXE.
> > >
> > > If I have USB bootable media plugged in, SeaBIOS seems to immediately
> > > boot from the hdd. I'm not able to boot from USB unless I physically unplug
> > > the SATA connection.
> > >
> > > When I look at the console log in cbmem, I don't see SeaBIOS searching
> > > the USB controller at all.
> > >
> > > It's an Ivy Bridge platform.
> > >
> > > SeaBIOS log from cbmem:
> > > Searching bootorder for: /pci@i0cf8/*@1f,2/drive@0/disk@0
> > > Searching bootorder for: /pci@i0cf8/pci-bridge@1c,3/*@0
> > > Press ESC for boot menu.
> > >
> > > lspci:
> > > 00:00.0 Host bridge [0600]: Intel Corporation 3rd Gen Core processor
> > > DRAM Controller [8086:0154] (rev 09)
> > > 00:01.0 PCI bridge [0604]: Intel Corporation Xeon E3-1200 v2/3rd Gen
> > > Core processor PCI Express Root Port [8086:0151] (rev 09) (prog-if 00
> > > [Normal decode])
> > > 00:01.1 PCI bridge [0604]: Intel Corporation Xeon E3-1200 v2/3rd Gen
> > > Core processor PCI Express Root Port [8086:0155] (rev 09) (prog-if 00
> > > [Normal decode])
> > > 00:02.0 VGA compatible controller [0300]: Intel Corporation 3rd Gen Core
> > > processor Graphics Controller [8086:0166] (rev 09) (prog-if 00 [VGA
> > > controller])
> > > 00:14.0 USB controller [0c03]: Intel Corporation 7 Series/C210 Series
> > > Chipset Family USB xHCI Host Controller [8086:1e31] (rev 04) (prog-if 30
> > > [XHCI])
> > > 00:19.0 Ethernet controller [0200]: Intel Corporation 82579LM Gigabit
> > > Network Connection (Lewisville) [8086:1502] (rev 04)
> > > 00:1a.0 USB controller [0c03]: Intel Corporation 7 Series/C216 Chipset
> > > Family USB Enhanced Host Controller #2 [8086:1e2d] (rev 04) (prog-if 20
> > > [EHCI])
> > > 00:1b.0 Audio device [0403]: Intel Corporation 7 Series/C216 Chipset
> > > Family High Definition Audio Controller [8086:1e20] (rev 04)
> > > 00:1c.0 PCI bridge [0604]: Intel Corporation 7 Series/C216 Chipset
> > > Family PCI Express Root Port 1 [8086:1e10] (rev c4) (prog-if 00 [Normal
> > > decode])
> > > 00:1c.4 PCI bridge [0604]: Intel Corporation 7 Series/C210 Series
> > > Chipset Family PCI Express Root Port 5 [8086:1e18] (rev c4) (prog-if 00
> > > [Normal decode])
> > > 00:1d.0 USB controller [0c03]: Intel Corporation 7 Series/C216 Chipset
> > > Family USB Enhanced Host Controller #1 [8086:1e26] (rev 04) (prog-if 20
> > > [EHCI])
> > > 00:1f.0 ISA bridge [0601]: Intel Corporation HM76 Express Chipset LPC
> > > Controller [8086:1e59] (rev 04)
> > > 00:1f.2 SATA controller [0106]: Intel Corporation 7 Series Chipset
> > > Family 6-port SATA Controller [AHCI mode] [8086:1e03] (rev 04) (prog-if 01
> > > [AHCI 1.0])
> > > 00:1f.3 SMBus [0c05]: Intel Corporation 7 Series/C216 Chipset Family
> > > SMBus Controller [8086:1e22] (rev 04)
> > > 00:1f.6 Signal processing controller [1180]: Intel Corporation 7
> > > Series/C210 Series Chipset Family Thermal Management Controller [8086:1e24]
> > > (rev 04)
> > >
> > > Any suggestions?
> > >
> > > Thanks,
> > > Hal