[coreboot] Using linux as payload

Jorge Fernandez Monteagudo jorgefm at cirsa.com
Sat Aug 18 10:51:53 CEST 2018 

Hi all!


I have a coreboot from master git working ok in my AMD Bettong demoboard with SeaBIOS and now

I'm trying to use a bzImage (2651888 bytes) and initrd.cpio.xz (2604544 bytes) generated by Heads in

order to test the linux payload.


When I compile the coreboot I see:


Created CBFS (capacity = 8388056 bytes)
    CBFS       apu/amdfw
    CBFS       AGESA
    CBFS       fallback/romstage
    CBFS       fallback/ramstage
    CBFS       cmos_layout.bin
    CBFS       pci1002,9874.rom
    CBFS       fallback/dsdt.aml
    CBFS       fallback/payload
W: Unknown type 'payload' ignored
    CBFS       coreboot.rom
    CBFSLAYOUT  coreboot.rom

This image contains the following sections that can be manipulated with this tool:

'COREBOOT' (CBFS, size 8388096, offset 512)

It is possible to perform either the write action or the CBFS add/remove actions on every section listed above.
To see the image's read-only sections as well, rerun with the -w option.
    CBFSPRINT  coreboot.rom

Name                           Offset     Type           Size   Comp
cbfs master header             0x0        cbfs header        32 none
fallback/romstage              0x80       stage           32220 none
fallback/ramstage              0x7ec0     stage           56689 none
cmos_layout.bin                0x15c80    cmos_layout      1516 none
fallback/dsdt.aml              0x162c0    raw              6673 none
(empty)                        0x17d40    null            32856 none
apu/amdfw                      0x1fdc0    raw            622592 none
pci1002,9874.rom               0xb7e00    optionrom       64512 none
fallback/payload               0xc7a80    simple elf    5244700 none
(empty)                        0x5c8200   null           228248 none
AGESA                          0x5ffdc0   raw            690436 none
(empty)                        0x6a8740   null          1405592 none
bootblock                      0x7ffa00   bootblock         912 none

Built amd/bettong (FP4)



The "W: Unknown type 'payload' ignored" message is ok? Maybe the payload doesn't fit in the

coreboot image?


Now when I boot the board the last messages I can see on serial console are:


...

Writing table forward entry at 0x00000500
Wrote coreboot table at: 00000500, 0x10 bytes, checksum 5ffd
Writing coreboot table at 0x8fe11000
 0. 0000000000000000-0000000000000fff: CONFIGURATION TABLES
 1. 0000000000001000-000000000009ffff: RAM
 2. 00000000000c0000-000000008fdd9fff: RAM
 3. 000000008fdda000-000000008fffffff: CONFIGURATION TABLES
 4. 0000000090000000-00000000cfffffff: RESERVED
 5. 00000000f8000000-00000000fbffffff: RESERVED
 6. 00000000fed40000-00000000fed44fff: RESERVED
 7. 0000000100000000-000000022effffff: RAM
Board ID: 70
CBFS: 'Master Header Locator' located CBFS at [100:7fffc0)
FMAP: Found "FLASH" version 1.1 at 0.
FMAP: base = ff800000 size = 800000 #areas = 3
Wrote coreboot table at: 8fe11000, 0x2f4 bytes, checksum 6365
coreboot table: 780 bytes.
IMD ROOT    0. 8ffff000 00001000
IMD SMALL   1. 8fffe000 00001000
ROMSTG STCK 2. 8ffe6000 00018000
RAMSTAGE    3. 8feff000 000e7000
57a9e100    4. 8fe19000 000e51f0
COREBOOT    5. 8fe11000 00008000
IRQ TABLE   6. 8fe10000 00001000
SMP TABLE   7. 8fe0f000 00001000
ACPI        8. 8fdeb000 00024000
TCPA LOG    9. 8fddb000 00010000
SMBIOS     10. 8fdda000 00000800
IMD small region:
  IMD ROOT    0. 8fffec00 00000400
  CAR GLOBALS 1. 8fffeac0 00000140
  ROMSTAGE    2. 8fffeaa0 00000004
  57a9e000    3. 8fffea80 00000018
  COREBOOTFWD 4. 8fffea40 00000028
BS: BS_WRITE_TABLES times (us): entry 0 run 207363 exit 0
CBFS: 'Master Header Locator' located CBFS at [100:7fffc0)
CBFS: Locating 'fallback/payload'
CBFS: Found @ offset c7b80 size 5006d5
Loading segment from ROM address 0xff8c7cb8
  data (compression=0)
  New segment dstaddr 0x90000 memsize 0x1080 srcaddr 0xff8c7d60 filesize 0x1080
Loading segment from ROM address 0xff8c7cd4
  code (compression=0)
  New segment dstaddr 0x1000000 memsize 0x2836f0 srcaddr 0xff8c8de0 filesize 0x2836f0
Loading segment from ROM address 0xff8c7cf0
  code (compression=0)
  New segment dstaddr 0x40000 memsize 0xb1 srcaddr 0xffb4c4d0 filesize 0xb1
Loading segment from ROM address 0xff8c7d0c
  data (compression=0)
  New segment dstaddr 0x91000 memsize 0xc srcaddr 0xffb4c581 filesize 0xc
Loading segment from ROM address 0xff8c7d28
  data (compression=0)
  New segment dstaddr 0x4000000 memsize 0x27be00 srcaddr 0xffb4c58d filesize 0x27be00
Loading segment from ROM address 0xff8c7d44
  Entry Point 0x00040000
Loading Segment: addr: 0x0000000000090000 memsz: 0x0000000000001080 filesz: 0x0000000000001080
lb: [0x000000008ff00000, 0x000000008ffe51f0)
Post relocation: addr: 0x0000000000090000 memsz: 0x0000000000001080 filesz: 0x0000000000001080
it's not compressed!
[ 0x00090000, 00091080, 0x00091080) <- ff8c7d60
dest 00090000, end 00091080, bouncebuffer ffffffff
Loading Segment: addr: 0x0000000001000000 memsz: 0x00000000002836f0 filesz: 0x00000000002836f0
lb: [0x000000008ff00000, 0x000000008ffe51f0)
Post relocation: addr: 0x0000000001000000 memsz: 0x00000000002836f0 filesz: 0x00000000002836f0
it's not compressed!
[ 0x01000000, 012836f0, 0x012836f0) <- ff8c8de0
dest 01000000, end 012836f0, bouncebuffer ffffffff
Loading Segment: addr: 0x0000000000040000 memsz: 0x00000000000000b1 filesz: 0x00000000000000b1
lb: [0x000000008ff00000, 0x000000008ffe51f0)
Post relocation: addr: 0x0000000000040000 memsz: 0x00000000000000b1 filesz: 0x00000000000000b1
it's not compressed!
[ 0x00040000, 000400b1, 0x000400b1) <- ffb4c4d0
dest 00040000, end 000400b1, bouncebuffer ffffffff
Loading Segment: addr: 0x0000000000091000 memsz: 0x000000000000000c filesz: 0x000000000000000c
lb: [0x000000008ff00000, 0x000000008ffe51f0)
Post relocation: addr: 0x0000000000091000 memsz: 0x000000000000000c filesz: 0x000000000000000c
it's not compressed!
[ 0x00091000, 0009100c, 0x0009100c) <- ffb4c581
dest 00091000, end 0009100c, bouncebuffer ffffffff
Loading Segment: addr: 0x0000000004000000 memsz: 0x000000000027be00 filesz: 0x000000000027be00
lb: [0x000000008ff00000, 0x000000008ffe51f0)
Post relocation: addr: 0x0000000004000000 memsz: 0x000000000027be00 filesz: 0x000000000027be00
it's not compressed!
[ 0x04000000, 0427be00, 0x0427be00) <- ffb4c58d
dest 04000000, end 0427be00, bouncebuffer ffffffff
Loaded segments
BS: BS_PAYLOAD_LOAD times (us): entry 0 run 317530 exit 0
Jumping to boot code at 00040000(8fe11000)
CPU0: stack: 8ff20000 - 8ff21000, lowest used address 8ff205e0, stack used: 2592 bytes


But no more messages are displayed and the board do nothing. Anyone with a linux payload working already?

I'm reporting in the heads github too with no luck...

Any hint is welcome!


Regards!

-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://mail.coreboot.org/pipermail/coreboot/attachments/20180818/cf0552c4/attachment.html>

More information about the coreboot mailing list