[coreboot] A bit of help needed
Jaspal Dhillon
jaspal.iiith at gmail.com
Sat Mar 10 11:49:05 CET 2012
Hello ,
I am currently a 4th year student ( B.Tech in CSE + MS ) in
IIIT-H<http://iiit.ac.in/>and chosen field of study for MS is
Virtualization. I have been using kvm ,
qemu and the libvirt library primarily to experiment with cloud frameworks
and migration until now.
I was going through the coreboot.org and I am definitely interested in it.
So wanted to ask couple of things.
I have not read the source code yet but tried it out in this way :
1.Checked out latest version of coreboot on 32bit Fedora 15. make config
with settings as :
MainBoard Vendor : Emulation , Model : Qemu , ROM Size : 256KB , Payload :
SeaBIOS
make was successful .
Since my laptop is a old one and does not have hardware virtualization
support , I use a lab pc ( 64 bit Fedora 15 ) for some of my experiments.
scp coreboot.rom root at Lab: ; ssh root at Lab
2.qemu-img create disk.img 2500M
3.mkfs.ext2 disk.img
4.mkdir foo ; mv coreboot.rom foo/ ; cd foo ; ln -s coreboot.rom bios.bin
5.Copy some of the other bios files needed by Qemu ( otherwise , Qemu
throws a file not found error and exits ):
cp -r qemu_path/pc-bios/{keymaps,
kvmapic.bin,pxe-e1000.rom,vgabios-cirrus.bin} /root/foo/
6.qemu-system-x86_64 -L foo/ -hda disk.img -vnc 0:0 -m 512 -serial stdio
-cdrom ~/CentOS-5.5-i386-bin-DVD.iso
Installation of CentOS ( Minimum installation ) was successful and at the
end , it asked me to reboot. When I clicked on reboot option , coreboot got
stuck in an infinite loop and I was getting this (in a loop) on the stdio :
Changing serial settings was 0/0 now 3/0
In resume (status=0)
In 32bit resume
Attempting a hard reboot
I killed the process and started my vm again without the -cdrom option and
it booted up fine.
I am not sure if this is a bug or if I am doing something wrong. Can you
shed light on it ?
I have pasted the serial output at the end of email. ( There are some other
'file not found' errors but qemu + coreboot worked fine without them ).
I am absolutely new to coreboot and used it for the first time yesterday
but I love and admire it's goal , to replace the proprietary BIOS. Always
thought , where's the code of BIOS ?
Could you give me some pointers as to where to begin for GSoC or some
little hacks that I should attempt out ? I am trying different payloads in
the meantime.
The initrd and vmlinuz of the CentOS I just installed have sizes of 3.2MB
and 1.8MB respectively. If I want to use them ( a kernel payload ) , how
should I ? I read about mkelfImage command and also tried it out but the
resultant size of linux.elf is ~5MB which exceeds the size of ROM chip ,
declared in Qemu. Can I use a kernel payload ( any other ) without hacking
Qemu ? ( I think not but want to know , if yes , how ) .
Thanks ,
Jaspal
PS : Sorry for the duplicate mail.
The serial log :
[root at divecloud2 jaspal]# qemu-system-x86_64 -L foo/ -hda disk.img -m 512
-serial stdio -vnc 0:0 -cdrom ~/CentOS-5.5-i386-bin-DVD.iso
Could not open option rom 'vapic.bin': No such file or directory
qemu-system-x86_64: pci_add_option_rom: failed to find romfile
"pxe-rtl8139.rom"
coreboot-4.0-2087-gc5fc7db Fri Mar 9 04:04:49 IST 2012 starting...
Loading image.
Searching for fallback/coreboot_ram
Check cmos_layout.bin
Check fallback/romstage
Check fallback/coreboot_ram
Stage: loading fallback/coreboot_ram @ 0x100000 (147456 bytes), entry @
0x100000
Stage: done loading.
Jumping to image.
coreboot-4.0-2087-gc5fc7db Fri Mar 9 04:04:49 IST 2012 booting...
Enumerating buses...
Show all devs...Before device enumeration.
Root Device: enabled 1
PCI_DOMAIN: 0000: enabled 1
PCI: 00:00.0: enabled 1
PCI: 00:01.0: enabled 1
PCI: 00:01.1: enabled 1
Compare with tree...
Root Device: enabled 1
PCI_DOMAIN: 0000: enabled 1
PCI: 00:00.0: enabled 1
PCI: 00:01.0: enabled 1
PCI: 00:01.1: enabled 1
scan_static_bus for Root Device
Finding PCI configuration type.
PCI: Using configuration type 1
PCI_DOMAIN: 0000 enabled
PCI_DOMAIN: 0000 scanning...
PCI: pci_scan_bus for bus 00
PCI: 00:00.0 [8086/1237] ops
PCI: 00:00.0 [8086/1237] enabled
PCI: 00:01.0 [8086/7000] bus ops
PCI: 00:01.0 [8086/7000] enabled
PCI: 00:01.1 [8086/7010] ops
PCI: 00:01.1 [8086/7010] enabled
PCI: 00:01.3 [8086/7113] bus ops
pwrmgt_enable: gpo default missing in devicetree.cb!
PCI: 00:01.3 [8086/7113] enabled
PCI: 00:02.0 [1013/00b8] ops
PCI: 00:02.0 [1013/00b8] enabled
PCI: 00:03.0 [10ec/8139] enabled
scan_static_bus for PCI: 00:01.0
scan_static_bus for PCI: 00:01.0 done
scan_static_bus for PCI: 00:01.3
scan_static_bus for PCI: 00:01.3 done
PCI: pci_scan_bus returning with max=000
scan_static_bus for Root Device done
done
Setting up VGA for PCI: 00:02.0
Setting PCI_BRIDGE_CTL_VGA for bridge PCI_DOMAIN: 0000
Setting PCI_BRIDGE_CTL_VGA for bridge Root Device
Allocating resources...
Reading resources...
Root Device read_resources bus 0 link: 0
PCI_DOMAIN: 0000 read_resources bus 0 link: 0
PCI_DOMAIN: 0000 read_resources bus 0 link: 0 done
Root Device read_resources bus 0 link: 0 done
Done reading resources.
Show resources in subtree (Root Device)...After reading.
Root Device child on link 0 PCI_DOMAIN: 0000
PCI_DOMAIN: 0000 child on link 0 PCI: 00:00.0
PCI_DOMAIN: 0000 resource base 0 size 0 align 0 gran 0 limit ffff flags
40040100 index 10000000
PCI_DOMAIN: 0000 resource base 0 size 0 align 0 gran 0 limit ffffffff
flags 40040200 index 10000100
PCI_DOMAIN: 0000 resource base fec00000 size 100000 align 0 gran 0 limit
ffffffff flags e0000200 index 2
PCI_DOMAIN: 0000 resource base fee00000 size 10000 align 0 gran 0 limit
ffffffff flags e0000200 index 3
PCI: 00:00.0
PCI: 00:01.0
PCI: 00:01.0 resource base 0 size 1000 align 0 gran 0 limit ffff flags
c0000100 index 1
PCI: 00:01.0 resource base ff800000 size 800000 align 0 gran 0 limit 0
flags d0000200 index 2
PCI: 00:01.1
PCI: 00:01.1 resource base 0 size 10 align 4 gran 4 limit ffff flags 100
index 20
PCI: 00:01.3
PCI: 00:01.3 resource base e400 size 40 align 0 gran 0 limit ffff flags
d0000100 index 1
PCI: 00:01.3 resource base f00 size 10 align 0 gran 0 limit ffff flags
d0000100 index 2
PCI: 00:02.0
PCI: 00:02.0 resource base 0 size 2000000 align 25 gran 25 limit
ffffffff flags 1200 index 10
PCI: 00:02.0 resource base 0 size 1000 align 12 gran 12 limit ffffffff
flags 200 index 14
PCI: 00:02.0 resource base 0 size 10000 align 16 gran 16 limit ffffffff
flags 2200 index 30
PCI: 00:03.0
PCI: 00:03.0 resource base 0 size 100 align 8 gran 8 limit ffff flags
100 index 10
PCI: 00:03.0 resource base 0 size 100 align 8 gran 8 limit ffffffff
flags 200 index 14
PCI_DOMAIN: 0000 compute_resources_io: base: 0 size: 0 align: 0 gran: 0
limit: ffff
PCI: 00:03.0 10 * [0x0 - 0xff] io
PCI: 00:01.1 20 * [0x400 - 0x40f] io
PCI_DOMAIN: 0000 compute_resources_io: base: 410 size: 410 align: 8 gran: 0
limit: ffff done
PCI_DOMAIN: 0000 compute_resources_mem: base: 0 size: 0 align: 0 gran: 0
limit: ffffffff
PCI: 00:02.0 10 * [0x0 - 0x1ffffff] prefmem
PCI: 00:02.0 30 * [0x2000000 - 0x200ffff] mem
PCI: 00:02.0 14 * [0x2010000 - 0x2010fff] mem
PCI: 00:03.0 14 * [0x2011000 - 0x20110ff] mem
PCI_DOMAIN: 0000 compute_resources_mem: base: 2011100 size: 2011100 align:
25 gran: 0 limit: ffffffff done
avoid_fixed_resources: PCI_DOMAIN: 0000
avoid_fixed_resources:@PCI_DOMAIN: 0000 10000000 limit 0000ffff
avoid_fixed_resources:@PCI_DOMAIN: 0000 10000100 limit ffffffff
constrain_resources: PCI_DOMAIN: 0000
constrain_resources: PCI: 00:00.0
constrain_resources: PCI: 00:01.0
constrain_resources: PCI: 00:01.1
constrain_resources: PCI: 00:01.3
constrain_resources: PCI: 00:02.0
constrain_resources: PCI: 00:03.0
avoid_fixed_resources2: PCI_DOMAIN: 0000 at 10000000 limit 0000ffff
lim->base 00001000 lim->limit 0000e3ff
avoid_fixed_resources2: PCI_DOMAIN: 0000 at 10000100 limit ffffffff
lim->base 00000000 lim->limit febfffff
Setting resources...
PCI_DOMAIN: 0000 allocate_resources_io: base:1000 size:410 align:8 gran:0
limit:e3ff
Assigned: PCI: 00:03.0 10 * [0x1000 - 0x10ff] io
Assigned: PCI: 00:01.1 20 * [0x1400 - 0x140f] io
PCI_DOMAIN: 0000 allocate_resources_io: next_base: 1410 size: 410 align: 8
gran: 0 done
PCI_DOMAIN: 0000 allocate_resources_mem: base:fc000000 size:2011100
align:25 gran:0 limit:febfffff
Assigned: PCI: 00:02.0 10 * [0xfc000000 - 0xfdffffff] prefmem
Assigned: PCI: 00:02.0 30 * [0xfe000000 - 0xfe00ffff] mem
Assigned: PCI: 00:02.0 14 * [0xfe010000 - 0xfe010fff] mem
Assigned: PCI: 00:03.0 14 * [0xfe011000 - 0xfe0110ff] mem
PCI_DOMAIN: 0000 allocate_resources_mem: next_base: fe011100 size: 2011100
align: 25 gran: 0 done
Root Device assign_resources, bus 0 link: 0
Detected 524288 Kbytes (512 MiB) RAM.
PCI_DOMAIN: 0000 assign_resources, bus 0 link: 0
PCI: 00:01.1 20 <- [0x0000001400 - 0x000000140f] size 0x00000010 gran 0x04
io
PCI: 00:02.0 10 <- [0x00fc000000 - 0x00fdffffff] size 0x02000000 gran 0x19
prefmem
PCI: 00:02.0 14 <- [0x00fe010000 - 0x00fe010fff] size 0x00001000 gran 0x0c
mem
PCI: 00:02.0 30 <- [0x00fe000000 - 0x00fe00ffff] size 0x00010000 gran 0x10
romem
PCI: 00:03.0 10 <- [0x0000001000 - 0x00000010ff] size 0x00000100 gran 0x08
io
PCI: 00:03.0 14 <- [0x00fe011000 - 0x00fe0110ff] size 0x00000100 gran 0x08
mem
PCI_DOMAIN: 0000 assign_resources, bus 0 link: 0
Root Device assign_resources, bus 0 link: 0
Done setting resources.
Show resources in subtree (Root Device)...After assigning values.
Root Device child on link 0 PCI_DOMAIN: 0000
PCI_DOMAIN: 0000 child on link 0 PCI: 00:00.0
PCI_DOMAIN: 0000 resource base 1000 size 410 align 8 gran 0 limit e3ff
flags 40040100 index 10000000
PCI_DOMAIN: 0000 resource base fc000000 size 2011100 align 25 gran 0
limit febfffff flags 40040200 index 10000100
PCI_DOMAIN: 0000 resource base fec00000 size 100000 align 0 gran 0 limit
ffffffff flags e0000200 index 2
PCI_DOMAIN: 0000 resource base fee00000 size 10000 align 0 gran 0 limit
ffffffff flags e0000200 index 3
PCI_DOMAIN: 0000 resource base 0 size a0000 align 0 gran 0 limit 0 flags
e0004200 index a
PCI_DOMAIN: 0000 resource base c0000 size 1ff40000 align 0 gran 0 limit 0
flags e0004200 index b
PCI: 00:00.0
PCI: 00:01.0
PCI: 00:01.0 resource base 0 size 1000 align 0 gran 0 limit ffff flags
c0000100 index 1
PCI: 00:01.0 resource base ff800000 size 800000 align 0 gran 0 limit 0
flags d0000200 index 2
PCI: 00:01.1
PCI: 00:01.1 resource base 1400 size 10 align 4 gran 4 limit e3ff flags
60000100 index 20
PCI: 00:01.3
PCI: 00:01.3 resource base e400 size 40 align 0 gran 0 limit ffff flags
d0000100 index 1
PCI: 00:01.3 resource base f00 size 10 align 0 gran 0 limit ffff flags
d0000100 index 2
PCI: 00:02.0
PCI: 00:02.0 resource base fc000000 size 2000000 align 25 gran 25 limit
febfffff flags 60001200 index 10
PCI: 00:02.0 resource base fe010000 size 1000 align 12 gran 12 limit
febfffff flags 60000200 index 14
PCI: 00:02.0 resource base fe000000 size 10000 align 16 gran 16 limit
febfffff flags 60002200 index 30
PCI: 00:03.0
PCI: 00:03.0 resource base 1000 size 100 align 8 gran 8 limit e3ff flags
60000100 index 10
PCI: 00:03.0 resource base fe011000 size 100 align 8 gran 8 limit
febfffff flags 60000200 index 14
Done allocating resources.
Enabling resources...
PCI: 00:00.0 cmd <- 00
PCI: 00:01.0 cmd <- 00
PCI: 00:01.1 cmd <- 01
PCI: 00:01.3 cmd <- 00
PCI: 00:02.0 cmd <- 03
PCI: 00:03.0 cmd <- 03
done.
Initializing devices...
Root Device init
PCI: 00:00.0 init
Keyboard init...
setting ethernet
Assigning IRQ 11 to 0:3.0
i8259_configure_irq_trigger: current interrupts are 0x0
i8259_configure_irq_trigger: try to set interrupts 0x800
PCI: 00:01.0 init
RTC Init
PCI: 00:01.1 init
IDE: Primary IDE interface: on
IDE: Secondary IDE interface: on
IDE: Access to legacy IDE ports: off
PCI: 00:02.0 init
Searching for pci1013,00b8.rom
Check cmos_layout.bin
Check fallback/romstage
Check fallback/coreboot_ram
Check fallback/payload
Check config
Check
Could not find file 'pci1013,00b8.rom'.
On card, ROM address for PCI: 00:02.0 = fe000000
PCI expansion ROM, signature 0xaa55, INIT size 0x8c00, data ptr 0x0038
PCI ROM image, vendor ID 1013, device ID 00b8,
PCI ROM image, Class Code 030000, Code Type 00
Copying VGA ROM Image from fe000000 to 0xc0000, 0x8c00 bytes
Real mode stub @00000600: 862 bytes
Calling Option ROM...
... Option ROM returned.
PCI: 00:03.0 init
Searching for pci10ec,8139.rom
Check cmos_layout.bin
Check fallback/romstage
Check fallback/coreboot_ram
Check fallback/payload
Check config
Check
Could not find file 'pci10ec,8139.rom'.
Devices initialized
Show all devs...After init.
Root Device: enabled 1
PCI_DOMAIN: 0000: enabled 1
PCI: 00:00.0: enabled 1
PCI: 00:01.0: enabled 1
PCI: 00:01.1: enabled 1
PCI: 00:01.3: enabled 1
PCI: 00:02.0: enabled 1
PCI: 00:03.0: enabled 1
Initializing CBMEM area to 0x1fff0000 (65536 bytes)
Adding CBMEM entry as no. 1
Moving GDT to 1fff0200...ok
High Tables Base is 1fff0000.
Copying Interrupt Routing Table to 0x000f0000... done.
Adding CBMEM entry as no. 2
Copying Interrupt Routing Table to 0x1fff0400... done.
PIRQ table: 128 bytes.
Adding CBMEM entry as no. 3
smbios_write_tables: 1fff1400
Root Device (QEMU Mainboard)
PCI_DOMAIN: 0000 (QEMU Northbridge)
PCI: 00:00.0 (QEMU Northbridge)
PCI: 00:01.0 (Intel 82371FB/SB/MX/AB/EB/MB Southbridge)
PCI: 00:01.1 (Intel 82371FB/SB/MX/AB/EB/MB Southbridge)
PCI: 00:01.3 ()
PCI: 00:02.0 ()
PCI: 00:03.0 ()
SMBIOS tables: 357 bytes.
Adding CBMEM entry as no. 4
Writing high table forward entry at 0x00000500
Wrote coreboot table at: 00000500 - 00000518 checksum c3df
New low_table_end: 0x00000518
Now going to write high coreboot table at 0x1fff1c00
rom_table_end = 0x1fff1c00
Adjust low_table_end from 0x00000518 to 0x00001000
Adjust rom_table_end from 0x1fff1c00 to 0x20000000
Adding high table area
coreboot memory table:
0. 0000000000000000-0000000000000fff: CONFIGURATION TABLES
1. 0000000000001000-000000000009ffff: RAM
2. 00000000000c0000-000000001ffeffff: RAM
3. 000000001fff0000-000000001fffffff: CONFIGURATION TABLES
4. 00000000ff800000-00000000ffffffff: RESERVED
Wrote coreboot table at: 1fff1c00 - 1fff1dd0 checksum fe3d
coreboot table: 464 bytes.
Multiboot Information structure has been written.
0. FREE SPACE 1fff3c00 0000c400
1. GDT 1fff0200 00000200
2. IRQ TABLE 1fff0400 00001000
3. SMBIOS 1fff1400 00000800
4. COREBOOT 1fff1c00 00002000
Searching for fallback/payload
Check cmos_layout.bin
Check fallback/romstage
Check fallback/coreboot_ram
Check fallback/payload
Got a payload
Loading segment from rom address 0xfffc99b8
code (compression=1)
New segment dstaddr 0xe7e04 memsize 0x181fc srcaddr 0xfffc99f0 filesize
0xc21c
(cleaned up) New segment addr 0xe7e04 size 0x181fc offset 0xfffc99f0
filesize 0xc21c
Loading segment from rom address 0xfffc99d4
Entry Point 0x00000000
Loading Segment: addr: 0x00000000000e7e04 memsz: 0x00000000000181fc filesz:
0x000000000000c21c
lb: [0x0000000000100000, 0x0000000000124000)
Post relocation: addr: 0x00000000000e7e04 memsz: 0x00000000000181fc filesz:
0x000000000000c21c
using LZMA
[ 0x000e7e04, 00100000, 0x00100000) <- fffc99f0
dest 000e7e04, end 00100000, bouncebuffer 1ffa8000
Loaded segments
Jumping to boot code at fc8b9
entry = 0x000fc8b9
lb_start = 0x00100000
lb_size = 0x00024000
adjust = 0x1fecc000
buffer = 0x1ffa8000
elf_boot_notes = 0x00110538
adjusted_boot_notes = 0x1ffdc538
Start bios (version 1.6.3-20120309_040510-redevil)
Found mainboard Emulation QEMU x86
Found CBFS header at 0xfffffc90
Ram Size=0x1fff0000 (0x0000000000000000 high)
Relocating init from 0x000e8450 to 0x1ffd57a0 (size 42812)
CPU Mhz=2936
Found 6 PCI devices (max PCI bus is 00)
Found 1 cpu(s) max supported 1 cpu(s)
Copying PIR from 0x1fff0400 to 0x000fdb70
Copying SMBIOS entry point from 0x1fff1400 to 0x000fdb50
Scan for VGA option rom
Running option rom at c000:0003
Turning on vga text mode console
SeaBIOS (version 1.6.3-20120309_040510-redevil)
Found 1 lpt ports
Found 1 serial ports
ATA controller 1 at 1f0/3f4/0 (irq 14 dev 9)
ATA controller 2 at 170/374/0 (irq 15 dev 9)
ata0-0: QEMU HARDDISK ATA-7 Hard-Disk (2500 MiBytes)
Searching bootorder for: /pci at i0cf8/*@1,1/drive at 0/disk at 0
DVD/CD [ata1-0: QEMU DVD-ROM ATAPI-4 DVD/CD]
Searching bootorder for: /pci at i0cf8/*@1,1/drive at 1/disk at 0
PS2 keyboard initialized
All threads complete.
Scan for option roms
Press F12 for boot menu.
drive 0x000fdb00: PCHS=5079/16/63 translation=large LCHS=634/128/63
s=5120000
ebda moved from 9fc00 to 9f400
Returned 65536 bytes of ZoneHigh
e820 map has 6 items:
0: 0000000000000000 - 000000000009f400 = 1 RAM
1: 000000000009f400 - 00000000000a0000 = 2 RESERVED
2: 00000000000f0000 - 0000000000100000 = 2 RESERVED
3: 0000000000100000 - 000000001fff0000 = 1 RAM
4: 000000001fff0000 - 0000000020000000 = 2 RESERVED
5: 00000000ff800000 - 0000000100000000 = 2 RESERVED
enter handle_19:
NULL
Booting from DVD/CD...
3991MB medium detected
Booting from 0000:7c00
Changing serial settings was 0/0 now 3/0
In resume (status=0)
In 32bit resume
Attempting a hard reboot
Changing serial settings was 0/0 now 3/0
In resume (status=0)
In 32bit resume
Attempting a hard reboot
Changing serial settings was 0/0 now 3/0
In resume (status=0)
In 32bit resume
Attempting a hard reboot
Changing serial settings was 0/0 now 3/0
In resume (status=0)
In 32bit resume
Attempting a hard reboot
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