Re: [coreboot] SeaBIOS, serial output, grub, sgabios does not seem to load

[Martin Roth]

Hi May,
   you might have already gotten past this, but I thought I'd comment.  
The codebase you're working from is intel's proof of concept 
implementation.  I don't remember if they have the MRC cache enabled.  
For Rangeley/Avoton platforms though, saving and restoring the MRC cache 
required, not optional as it is on many other FSPs.

The MRC cache is for saving the state of the memory controller. Other 
FSPs require that the MRC data get saved and restored for S3 resume and 
for "Fast Boot".  For Rangeley it's required that it get restored every 
time.  If the MRC cache isn't restored, the system gets reset an 
additional time on boot.  If the platform doesn't have the hardware for 
a full power down sequence (blade systems are the example I saw), then 
the system will hang on reset about 30% of the time.

If the code to save and restore the MRC cache isn't available in the 
codebase you're using, I'd recommend switching to a codebase that does.

Martin

On 01/19/2015 06:42 PM, May Park wrote:
> Hello Viktor,
>
> I went thru your log file attached below, and I found a difference 
> between our coreboot.rom which used the same Rangeley platform (Mohon 
> Peak CRB).
>
> would you please tell me how you generate this hightlighted mrc.cache 
> file, I didn't find any configuration in 'menuconfig' or Kconfig 
> files. My code base is '*RANGELEY_CB_POSTGOLD_001_20131218*' which was 
> downloaded from Intel website.
>
> I've already googled 'mrc.cache' but hardly found much hits, what is 
> this file for? could you please also give some hints :)
>
> Thanks
>
> May
>
> /Name                           Offset     Type Size/
> /cmos_layout.bin                0x600000   cmos_layout 1352/
> /pci1106,3230.rom               0x600580   optionrom 4096/
> /fallback/romstage              0x6015c0   stage 26620/
> /fallback/ramstage              0x607e00   stage 60427/
> /fallback/payload               0x616a80   payload 53368/
> /config                         0x623b40   raw 4538/
> /revision                       0x624d40   raw 714/
> /vgaroms/sgabios.bin            0x625040   raw 4096/
> /(empty)                        0x626080   null 1220376/
> /*mrc.cache 0x74ffc0   (unknown)    65536*/
> /cpu_microcode_blob.bin         0x760000   microcode 83968/
> /(empty)                        0x774840   null 46936/
> /fsp.bin                        0x77ffc0   (unknown) 372736/
> /(empty)                        0x7db000   null 150424/
> *From:* Kuzmichev Viktor <mailto:[e-mail]>
> *Date:* 2014-12-25 16:45
> *To:* coreboot <mailto:[e-mail]>
> *Subject:* [coreboot] SeaBIOS, serial output, grub, sgabios does
> not seem to load
> Hello,
> I've been trying to boot grub installed on the hard drive using
> coreboot
> and SeaBIOS as a payload. The motherboard I'm using is Intel Mohon
> Peak.
> Also, I do not use VGA for output, only serial port. So, I
> included the
> sgabios into my rom file. Here is its layout:
> $ ./build/cbfstool build/coreboot.rom print
> coreboot.rom: 8192 kB, bootblocksize 1024, romsize 8388608, offset
> 0x600000
> alignment: 64 bytes, architecture: x86
> Name                           Offset     Type Size
> cmos_layout.bin                0x600000   cmos_layout 1352
> pci1106,3230.rom               0x600580   optionrom 4096
> fallback/romstage              0x6015c0   stage 26620
> fallback/ramstage              0x607e00   stage 60427
> fallback/payload               0x616a80   payload 53368
> config                         0x623b40   raw 4538
> revision                       0x624d40   raw 714
> vgaroms/sgabios.bin            0x625040   raw 4096
> (empty)                        0x626080   null 1220376
> mrc.cache                      0x74ffc0   (unknown) 65536
> cpu_microcode_blob.bin         0x760000   microcode 83968
> (empty)                        0x774840   null 46936
> fsp.bin                        0x77ffc0   (unknown) 372736
> (empty)                        0x7db000   null 150424
> The issue is, it looks like SeaBIOS does not load sgabios at all.
> Here is the SeaBIOS output, debug level 7 (I also put it in the
> attachment):
> Attempting to find coreboot table
> Found coreboot table forwarder.
> Now attempting to find coreboot memory map
> Found mainboard Intel Mohon Peak CRB
> malloc preinit
> Relocating init from 0x000e6b60 to 0x7fd97590 (size 35248)
> malloc init
> Found CBFS header at 0xfffffbe0
> Add romfile: cmos_layout.bin (size=1352)
> Add romfile: pci1106,3230.rom (size=4096)
> Add romfile: fallback/romstage (size=26620)
> Add romfile: fallback/ramstage (size=60427)
> Add romfile: fallback/payload (size=53368)
> Add romfile: config (size=4538)
> Add romfile: revision (size=714)
> Add romfile: vgaroms/sgabios.bin (size=4096)
> Add romfile:  (size=1220376)
> Add romfile: mrc.cache (size=65536)
> Add romfile: cpu_microcode_blob.bin (size=83968)
> Add romfile:  (size=46936)
> Add romfile: fsp.bin (size=372736)
> Add romfile:  (size=150424)
> init ivt
> init bda
> init bios32
> init PNPBIOS table
> init keyboard
> init mouse
> init pic
> math cp init
> tsc calibrate start=1665406224 end=1669527480 diff=4121256
> CPU Mhz=2401
> init timer
> PCI probe
> PCI device 00:00.0 (vd=8086:1f08 c=0600)
> PCI device 00:01.0 (vd=8086:1f10 c=0604)
> PCI device 00:03.0 (vd=8086:1f12 c=0604)
> PCI device 00:0b.0 (vd=8086:1f18 c=0b40)
> PCI device 00:0e.0 (vd=8086:1f14 c=0600)
> PCI device 00:0f.0 (vd=8086:1f16 c=0806)
> PCI device 00:13.0 (vd=8086:1f15 c=0880)
> PCI device 00:16.0 (vd=8086:1f2c c=0c03)
> PCI device 00:17.0 (vd=8086:1f22 c=0106)
> PCI device 00:18.0 (vd=8086:1f32 c=0106)
> PCI device 00:1f.0 (vd=8086:1f38 c=0601)
> PCI device 00:1f.3 (vd=8086:1f3c c=0c05)
> PCI device 01:00.0 (vd=1a03:1150 c=0604)
> PCI device 02:00.0 (vd=1a03:2000 c=0300)
> PCI device 03:00.0 (vd=10b5:8624 c=0604)
> PCI device 04:04.0 (vd=10b5:8624 c=0604)
> PCI device 04:05.0 (vd=10b5:8624 c=0604)
> PCI device 04:08.0 (vd=10b5:8624 c=0604)
> PCI device 04:09.0 (vd=10b5:8624 c=0604)
> PCI device 06:00.0 (vd=8086:1528 c=0200)
> PCI device 06:00.1 (vd=8086:1528 c=0200)
> Found 21 PCI devices (max PCI bus is 08)
> Relocating coreboot bios tables
> Copying ACPI RSDP from 0x7fde2800 to 0x000f5730
> Copying SMBIOS entry point from 0x7fdee000 to 0x000f5710
> rsdp=0x000f5730
> rsdt=0x7fde2830
> fadt=0x7fde4950
> pm_tmr_blk=408
> Using pmtimer, ioport 0x408
> /7fd95000\ Start thread
> |7fd95000| init usb
> |7fd95000| EHCI init on dev 00:16.0 (regs=0xdc865420)
> /7fd94000\ Start thread
> init ps2port
> /7fd93000\ Start thread
> |7fd93000| i8042_flush
> |7fd93000| i8042 flushed ff (status=ff)
> |7fd93000| i8042 flushed ff (status=ff)
> |7fd93000| i8042 flushed ff (status=ff)
> |7fd93000| i8042 flushed ff (status=ff)
> |7fd93000| i8042 flushed ff (status=ff)
> |7fd93000| i8042 flushed ff (status=ff)
> |7fd93000| i8042 flushed ff (status=ff)
> |7fd93000| i8042 flushed ff (status=ff)
> |7fd93000| i8042 flushed ff (status=ff)
> |7fd93000| i8042 flushed ff (status=ff)
> |7fd93000| i8042 flushed ff (status=ff)
> |7fd93000| i8042 flushed ff (status=ff)
> |7fd93000| i8042 flushed ff (status=ff)
> |7fd93000| i8042 flushed ff (status=ff)
> |7fd93000| i8042 flushed ff (status=ff)
> |7fd93000| i8042 flushed ff (status=ff)
> |7fd93000| WARNING - Timeout at i8042_flush:71!
> \7fd93000/ End thread
> init lpt
> Found 0 lpt ports
> init serial
> Found 2 serial ports
> init floppy drives
> init hard drives
> init ahci
> ebda moved from 9f000 to 9e800
> AHCI controller at 17.0, iobase dc864000, irq 15
> AHCI: cap 0xc720ff03, ports_impl 0x2
> /7fd92000\ Start thread
> |7fd92000| AHCI/1: probing
> |7fd92000| AHCI/1: link up
> \7fd95000/ End thread
> /7fd91000\ Start thread
> AHCI controller at 18.0, iobase dc864800, irq 0
> AHCI: cap 0xc3309f01, ports_impl 0x0
> init megasas
> /7fd90000\ Start thread
> |7fd92000| AHCI/1: ... finished, status 0x51, ERROR 0x4
> /7fd8f000\ Start thread
> |7fd92000| Searching bootorder for: /pci@i0cf8/*@17/drive@1/disk@0
> /7fd8e000\ Start thread
> |7fd92000| AHCI/1: registering: "AHCI/1: ST500DM002-1BD142 ATA-8
> Hard-Disk (465"
> |7fd92000| Registering bootable: AHCI/1: ST500DM002-1BD142 ATA-8
> Hard-Disk (465)
> \7fd92000/ End thread
> /7fd93000\ Start thread
> /7fd92000\ Start thread
> |7fd91000| set_address 0x7fd96260
> /7fd8d000\ Start thread
> /7fd8c000\ Start thread
> |7fd91000| ehci_alloc_async_pipe 0x7fd96260 0
> |7fd91000| ehci_control 0x7fd95b50 (dir=0 cmd=8 data=0)
> |7fd91000| ehci_alloc_async_pipe 0x7fd96260 0
> |7fd91000| config_usb: 0x7fd95b50
> |7fd91000| ehci_control 0x7fd95b50 (dir=128 cmd=8 data=8)
> |7fd91000| device rev=0200 cls=09 sub=00 proto=01 size=64
> |7fd91000| ehci_alloc_async_pipe 0x7fd96260 0
> |7fd91000| ehci_control 0x7fd95b50 (dir=128 cmd=8 data=9)
> \7fd8c000/ End thread
> \7fd8d000/ End thread
> \7fd92000/ End thread
> \7fd93000/ End thread
> \7fd8e000/ End thread
> \7fd8f000/ End thread
> \7fd90000/ End thread
> |7fd91000| ehci_control 0x7fd95b50 (dir=128 cmd=8 data=25)
> |7fd91000| ehci_control 0x7fd95b50 (dir=0 cmd=8 data=0)
> |7fd91000| ehci_control 0x7fd95b50 (dir=128 cmd=8 data=7)
> |7fd91000| ehci_control 0x7fd95b50 (dir=0 cmd=8 data=0)
> |7fd91000| ehci_control 0x7fd95b50 (dir=0 cmd=8 data=0)
> |7fd91000| ehci_control 0x7fd95b50 (dir=0 cmd=8 data=0)
> |7fd91000| ehci_control 0x7fd95b50 (dir=0 cmd=8 data=0)
> /7fd93000\ Start thread
> |7fd93000| ehci_control 0x7fd95b50 (dir=128 cmd=8 data=4)
> /7fd92000\ Start thread
> |7fd93000| ehci_control 0x7fd95b50 (dir=0 cmd=8 data=0)
> /7fd90000\ Start thread
> |7fd93000| ehci_control 0x7fd95b50 (dir=128 cmd=8 data=4)
> /7fd8f000\ Start thread
> |7fd8f000| ehci_control 0x7fd95b50 (dir=128 cmd=8 data=4)
> |7fd90000| ehci_control 0x7fd95b50 (dir=128 cmd=8 data=4)
> |7fd92000| ehci_control 0x7fd95b50 (dir=128 cmd=8 data=4)
> |7fd93000| ehci_control 0x7fd95b50 (dir=128 cmd=8 data=4)
> |7fd93000| set_address 0x7fd96260
> |7fd8f000| ehci_control 0x7fd95b50 (dir=128 cmd=8 data=4)
> |7fd92000| ehci_control 0x7fd95b50 (dir=128 cmd=8 data=4)
> |7fd93000| ehci_alloc_async_pipe 0x7fd96260 0
> |7fd93000| ehci_control 0x7fd95ad0 (dir=0 cmd=8 data=0)
> |7fd8f000| ehci_control 0x7fd95b50 (dir=128 cmd=8 data=4)
> |7fd92000| ehci_control 0x7fd95b50 (dir=128 cmd=8 data=4)
> |7fd93000| ehci_alloc_async_pipe 0x7fd96260 0
> |7fd93000| config_usb: 0x7fd95ad0
> |7fd93000| ehci_control 0x7fd95ad0 (dir=128 cmd=8 data=8)
> |7fd8f000| ehci_control 0x7fd95b50 (dir=128 cmd=8 data=4)
> |7fd93000| device rev=0110 cls=00 sub=00 proto=00 size=8
> |7fd93000| ehci_alloc_async_pipe 0x7fd96260 0
> |7fd93000| ehci_control 0x7fd95ad0 (dir=128 cmd=8 data=9)
> \7fd8f000/ End thread
> |7fd90000| ehci_control 0x7fd95b50 (dir=0 cmd=8 data=0)
> |7fd93000| ehci_control 0x7fd95ad0 (dir=128 cmd=8 data=34)
> |7fd90000| ehci_control 0x7fd95b50 (dir=128 cmd=8 data=4)
> |7fd93000| ehci_control 0x7fd95ad0 (dir=0 cmd=8 data=0)
> |7fd90000| set_address 0x7fd96260
> |7fd92000| ehci_control 0x7fd95b50 (dir=128 cmd=8 data=4)
> |7fd93000| usb_hid_setup 0x7fd95ad0
> |7fd93000| ehci_control 0x7fd95ad0 (dir=0 cmd=8 data=0)
> |7fd90000| ehci_alloc_async_pipe 0x7fd96260 0
> |7fd90000| ehci_control 0x7fd958d0 (dir=0 cmd=8 data=0)
> \7fd92000/ End thread
> |7fd93000| ehci_alloc_intr_pipe 0x7fd96260 3
> |7fd93000| ebda moved from 9e800 to 9e400
> |7fd93000| USB mouse initialized
> \7fd93000/ End thread
> |7fd90000| ehci_alloc_async_pipe 0x7fd96260 0
> |7fd90000| config_usb: 0x7fd958d0
> |7fd90000| ehci_control 0x7fd958d0 (dir=128 cmd=8 data=8)
> |7fd90000| device rev=0200 cls=00 sub=00 proto=00 size=8
> |7fd90000| ehci_alloc_async_pipe 0x7fd96260 0
> |7fd90000| ehci_control 0x7fd958d0 (dir=128 cmd=8 data=9)
> |7fd90000| ehci_control 0x7fd958d0 (dir=128 cmd=8 data=59)
> |7fd90000| ehci_control 0x7fd958d0 (dir=0 cmd=8 data=0)
> |7fd90000| usb_hid_setup 0x7fd958d0
> |7fd90000| ehci_control 0x7fd958d0 (dir=0 cmd=8 data=0)
> |7fd90000| ehci_control 0x7fd958d0 (dir=0 cmd=8 data=0)
> |7fd90000| ehci_alloc_intr_pipe 0x7fd96260 3
> |7fd90000| ebda moved from 9e400 to 9e000
> |7fd90000| USB keyboard initialized
> \7fd90000/ End thread
> |7fd91000| Initialized USB HUB (2 ports used)
> \7fd91000/ End thread
> |7fd94000| ehci_free_pipes 0x7fd96260
> \7fd94000/ End thread
> All threads complete.
> Searching bootorder for: HALT
> Mapping hd drive 0x000f5680 to 0
> drive 0x000f5680: PCHS=16383/16/63 translation=lba LCHS=1024/255/63
> s=976773168
> malloc finalize
> Space available for UMB: c0000-ef510, f4f60-f5680
> Returned 253952 bytes of ZoneHigh
> e820 map has 8 items:
>     0: 0000000000000000 - 000000000009e000 = 1 RAM
>     1: 000000000009e000 - 00000000000a0000 = 2 RESERVED
>     2: 00000000000f0000 - 0000000000100000 = 2 RESERVED
>     3: 0000000000100000 - 000000007fdde000 = 1 RAM
>     4: 000000007fdde000 - 000000007fe00000 = 2 RESERVED
>     5: 00000000e0000000 - 00000000f0000000 = 2 RESERVED
>     6: 00000000fee00000 - 00000000fee01000 = 2 RESERVED
>     7: 0000000100000000 - 0000000180000000 = 1 RAM
> Jump to int19
> enter handle_19:
>     NULL
> Booting from 0000:7c00
> enter handle_12:
>      a=00000000  b=00000000  c=00000000  d=00000080 ds=0000
> es=0000 ss=9000
>     si=00007c05 di=00058cc0 bp=00001ff0 sp=0000ffd6 cs=0000
> ip=8af1 f=0297
> invalid handle_legacy_disk:696:
>      a=00004100  b=000655aa  c=00000000  d=00000081 ds=0000
> es=0000 ss=9000
>     si=00067fbc di=00000081 bp=00001ff0 sp=0000ffd6 cs=0000
> ip=89a5 f=0246
> invalid handle_legacy_disk:696:
>      a=00000800  b=00067fbc  c=00000000  d=00000081 ds=0000
> es=0000 ss=9000
>     si=00000000 di=00000081 bp=00001ff0 sp=0000ffd6 cs=0000
> ip=89d9 f=0246
> unimplemented handle_15XX:330:
>      a=000000c0  b=00000000  c=00000000  d=00000081 ds=0000
> es=0000 ss=9000
>     si=00067fbc di=00000081 bp=00001ff0 sp=0000ffd6 cs=0000
> ip=8ba6 f=0246
> Press any key to continue.
> Press any key to continue.
> Press any key to continue.
> Press any key to continue.
> Press any key to continue.
> The last five lines is clearly grub output, only after this goes
> nothing
> and it seems to me that sgabios does not forward VGA output to the
> serial port.
> So, how do I fix that? Am I missing something?
> Regards,
> Viktor Kuzmichev
>
> -- 
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