Board:emulation/spike-riscv

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Revision as of 02:10, 30 June 2016 by Jn (talk | contribs) (boot log)
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The wiki is being retired!

Documentation is now handled by the same processes we use for code: Add something to the Documentation/ directory in the coreboot repo, and it will be rendered to https://doc.coreboot.org/. Contributions welcome!

SPIKE is RISC-V's primary emulator. The Spike support in coreboot is mostly being developed by jn as part of his GSoC 2016.

Build instructions

These instructions may easily become out of date as coreboot or RISC-V moves forward. If that happens, please complain on the discussion page or IRC (or just fix it).

The instructions are also not yet complete.

Building the toolchain

Building spike

Building coreboot without a payload

For general spike usage, look at its GitHub page.

Building Linux

  • git clone https://github.com/riscv/riscv-linux
  • download linux 4.6.x from kernel.org
  • cd linux-4.6.x/arch; ln -s ../../riscv-linux/arch/riscv .
  • make ARCH=riscv defconfig
  • make ARCH=riscv menuconfig, configure General setup/Cross-compiler tool prefix
  • make ARCH=riscv

Building bbl

  • TODO: libc stuff
  • TODO: payload linker script foo
  • TODO: patching the console output handler
  • mkdir build
  • cd build; ../configure --with-payload=path/to/vmlinux CC=path/to/riscv64-unknown-elf-gcc LD=path/to/riscv64-unknown-elf-ld
  • make

Building coreboot with bbl

  • apply the same coreboot patches as above, and select Emulation/Spike ucb riscv
  • in the Payload menu of menuconfig, select "ELF Payload" and enter the path to the bbl binary
  • run make and the make-spike-elf.sh script as described above

boot log

we don't have virtual memory... ?

coreboot-4.4-652-gbfb3fee Thu Jun 30 01:03:13 UTC 2016 bootblock starting... CBFS @ 20100 size 3dff00 CBFS: 'Master Header Locator' located CBFS at [20100:400000) CBFS: Locating 'fallback/romstage' CBFS: Checking offset 0 CBFS: File @ offset 0 size 20 CBFS: Unmatched 'cbfs master header' at 0 CBFS: Checking offset 80 CBFS: File @ offset 80 size 2d17 CBFS: Found @ offset 80 size 2d17 ?

coreboot-4.4-652-gbfb3fee Thu Jun 30 01:03:13 UTC 2016 romstage starting... CBFS @ 20100 size 3dff00 CBFS: 'Master Header Locator' located CBFS at [20100:400000) CBFS: Locating 'fallback/ramstage' CBFS: Checking offset 0 CBFS: File @ offset 0 size 20 CBFS: Unmatched 'cbfs master header' at 0 CBFS: Checking offset 80 CBFS: File @ offset 80 size 2d17 CBFS: Unmatched 'fallback/romstage' at 80 CBFS: Checking offset 2e00 CBFS: File @ offset 2e00 size 4ed7 CBFS: Found @ offset 2e00 size 4ed7 ?

coreboot-4.4-652-gbfb3fee Thu Jun 30 01:03:13 UTC 2016 ramstage starting... Enumerating buses... Show all devs... Before device enumeration. Root Device: enabled 1 CPU_CLUSTER: 0: enabled 1 I2C: 00:06: enabled 1 Compare with tree... Root Device: enabled 1

CPU_CLUSTER: 0: enabled 1
I2C: 00:06: enabled 1

memalign Enter, boundary 8, size 3584, free_mem_ptr 0000000080840c18 memalign 0000000080840c18 CBMEM: IMD: root @ 00000000bffff000 254 entries. IMD: root @ 00000000bfffec00 62 entries. Root Device scanning... root_dev_scan_bus for Root Device CPU_CLUSTER: 0 enabled I2C: 00:06 enabled root_dev_scan_bus for Root Device done scan_bus: scanning of bus Root Device took 0 usecs done Allocating resources... Reading resources... Root Device read_resources bus 0 link: 0 CPU_CLUSTER: 0 missing read_resources I2C: 00:06 missing read_resources 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 CPU_CLUSTER: 0
Root Device resource base 80000000 size 40000000 align 0 gran 0 limit 0 flags e0004200 index 0
 CPU_CLUSTER: 0
 I2C: 00:06

Setting resources... Root Device 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 CPU_CLUSTER: 0
Root Device resource base 80000000 size 40000000 align 0 gran 0 limit 0 flags e0004200 index 0
 CPU_CLUSTER: 0
 I2C: 00:06

Done allocating resources. Enabling resources... done. Initializing devices... Root Device init ... Devices initialized Show all devs... After init. Root Device: enabled 1 CPU_CLUSTER: 0: enabled 1 I2C: 00:06: enabled 1 Finalize devices... Devices finalized Writing coreboot table at 0xbffdc000 memalign Enter, boundary 8, size 32, free_mem_ptr 0000000080841a18 memalign 0000000080841a18 memalign Enter, boundary 8, size 32, free_mem_ptr 0000000080841a38 memalign 0000000080841a38

0. 0000000080000000-00000000bffdbfff: RAM
1. 00000000bffdc000-00000000bfffffff: CONFIGURATION TABLES

CBFS @ 20100 size 3dff00 CBFS: 'Master Header Locator' located CBFS at [20100:400000) FMAP: Found "FLASH" version 1.1 at 20000. FMAP: base = 0 size = 400000 #areas = 4 Wrote coreboot table at: 00000000bffdc000, 0x150 bytes, checksum f468 coreboot table: 360 bytes. IMD ROOT 0. 00000000bffff000 00001000 IMD SMALL 1. 00000000bfffe000 00001000 CONSOLE 2. 00000000bffde000 00020000 COREBOOT 3. 00000000bffdc000 00002000 IMD small region:

 IMD ROOT    0. 00000000bfffec00 00000400

CBFS @ 20100 size 3dff00 CBFS: 'Master Header Locator' located CBFS at [20100:400000) CBFS: Locating 'fallback/payload' CBFS: Checking offset 0 CBFS: File @ offset 0 size 20 CBFS: Unmatched 'cbfs master header' at 0 CBFS: Checking offset 80 CBFS: File @ offset 80 size 2d17 CBFS: Unmatched 'fallback/romstage' at 80 CBFS: Checking offset 2e00 CBFS: File @ offset 2e00 size 4ed7 CBFS: Unmatched 'fallback/ramstage' at 2e00 CBFS: Checking offset 7d40 CBFS: File @ offset 7d40 size 114 CBFS: Unmatched 'config' at 7d40 CBFS: Checking offset 7ec0 CBFS: File @ offset 7ec0 size 239 CBFS: Unmatched 'revision' at 7ec0 CBFS: Checking offset 8140 CBFS: File @ offset 8140 size 120258 CBFS: Found @ offset 8140 size 120258 Loading segment from rom address 0x0000000080028278

 code (compression=1)

memalign Enter, boundary 8, size 56, free_mem_ptr 0000000080841a58 memalign 0000000080841a58

 New segment dstaddr 0x80000000 memsize 0x7e40 srcaddr 0x800282e8 filesize 0x3525

Loading segment from rom address 0x0000000080028294

 code (compression=1)

memalign Enter, boundary 8, size 56, free_mem_ptr 0000000080841a90 memalign 0000000080841a90

 New segment dstaddr 0x80008000 memsize 0x1000 srcaddr 0x8002b80d filesize 0x86

Loading segment from rom address 0x00000000800282b0

 data (compression=1)

memalign Enter, boundary 8, size 56, free_mem_ptr 0000000080841ac8 memalign 0000000080841ac8

 New segment dstaddr 0x81000000 memsize 0x3314c8 srcaddr 0x8002b893 filesize 0x11cc3d

Loading segment from rom address 0x00000000800282cc

 Entry Point 0x0000000080000000

memalign Enter, boundary 8, size 32, free_mem_ptr 0000000080841b00 memalign 0000000080841b00 memalign Enter, boundary 8, size 32, free_mem_ptr 0000000080841b20 memalign 0000000080841b20 memalign Enter, boundary 8, size 32, free_mem_ptr 0000000080841b40 memalign 0000000080841b40 memalign Enter, boundary 8, size 32, free_mem_ptr 0000000080841b60 memalign 0000000080841b60 Bounce Buffer at 00000000bffb6000, 153648 bytes Loading Segment: addr: 0x0000000080000000 memsz: 0x0000000000007e40 filesz: 0x0000000000003525 lb: [0x0000000080832000, 0x0000000080844c18) Post relocation: addr: 0x0000000080000000 memsz: 0x0000000000007e40 filesz: 0x0000000000003525 using LZMA [ 0x80000000, 80007d7c, 0x80007e40) <- 800282e8 Clearing Segment: addr: 0x0000000080007d7c memsz: 0x00000000000000c4 dest 0000000080000000, end 0000000080007e40, bouncebuffer bffb6000 Loading Segment: addr: 0x0000000080008000 memsz: 0x0000000000001000 filesz: 0x0000000000000086 lb: [0x0000000080832000, 0x0000000080844c18) Post relocation: addr: 0x0000000080008000 memsz: 0x0000000000001000 filesz: 0x0000000000000086 using LZMA [ 0x80008000, 80009000, 0x80009000) <- 8002b80d dest 0000000080008000, end 0000000080009000, bouncebuffer bffb6000 Loading Segment: addr: 0x0000000081000000 memsz: 0x00000000003314c8 filesz: 0x000000000011cc3d lb: [0x0000000080832000, 0x0000000080844c18) Post relocation: addr: 0x0000000081000000 memsz: 0x00000000003314c8 filesz: 0x000000000011cc3d using LZMA [ 0x81000000, 813314c8, 0x813314c8) <- 8002b893 dest 0000000081000000, end 00000000813314c8, bouncebuffer bffb6000 Loaded segments Jumping to boot code at 0000000080000000(00000000bffdc000) CPU0: stack: 0000000080800000 - 0000000080810000, lowest used address 0000000080800004, stack used: 65532 bytes handle_command([255,255,80203a00])

             vvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvv
                 vvvvvvvvvvvvvvvvvvvvvvvvvvvv

rrrrrrrrrrrrr vvvvvvvvvvvvvvvvvvvvvvvvvv rrrrrrrrrrrrrrrr vvvvvvvvvvvvvvvvvvvvvvvv rrrrrrrrrrrrrrrrrr vvvvvvvvvvvvvvvvvvvvvvvv rrrrrrrrrrrrrrrrrr vvvvvvvvvvvvvvvvvvvvvvvv rrrrrrrrrrrrrrrrrr vvvvvvvvvvvvvvvvvvvvvvvv rrrrrrrrrrrrrrrr vvvvvvvvvvvvvvvvvvvvvv rrrrrrrrrrrrr vvvvvvvvvvvvvvvvvvvvvv rr vvvvvvvvvvvvvvvvvvvvvv rr vvvvvvvvvvvvvvvvvvvvvvvv rr rrrr vvvvvvvvvvvvvvvvvvvvvvvvvv rrrr rrrrrr vvvvvvvvvvvvvvvvvvvvvv rrrrrr rrrrrrrr vvvvvvvvvvvvvvvvvv rrrrrrrr rrrrrrrrrr vvvvvvvvvvvvvv rrrrrrrrrr rrrrrrrrrrrr vvvvvvvvvv rrrrrrrrrrrr rrrrrrrrrrrrrr vvvvvv rrrrrrrrrrrrrr rrrrrrrrrrrrrrrr vv rrrrrrrrrrrrrrrr rrrrrrrrrrrrrrrrrr rrrrrrrrrrrrrrrrrr rrrrrrrrrrrrrrrrrrrr rrrrrrrrrrrrrrrrrrrr rrrrrrrrrrrrrrrrrrrrrr rrrrrrrrrrrrrrrrrrrrrr

      INSTRUCTION SETS WANT TO BE FREE

[ 0.000000] Linux version 4.6.3 (jn@latitude) (gcc version 6.1.0 (coreboot toolchain v1.40 May 4th, 2016) ) #1 Sun Jun 26 02:48:43 CEST 2016 [ 0.000000] Available physical memory: 2044MB [ 0.000000] Zone ranges: [ 0.000000] Normal [mem 0x0000000080200000-0x00000000ffdfffff] [ 0.000000] Movable zone start for each node [ 0.000000] Early memory node ranges [ 0.000000] node 0: [mem 0x0000000080200000-0x00000000ffdfffff] [ 0.000000] Initmem setup node 0 [mem 0x0000000080200000-0x00000000ffdfffff] [ 0.000000] Built 1 zonelists in Zone order, mobility grouping on. Total pages: 516110 [ 0.000000] Kernel command line: [ 0.000000] PID hash table entries: 4096 (order: 3, 32768 bytes) [ 0.000000] Dentry cache hash table entries: 262144 (order: 9, 2097152 bytes) [ 0.000000] Inode-cache hash table entries: 131072 (order: 8, 1048576 bytes) [ 0.000000] Sorting __ex_table... [ 0.000000] Memory: 2058448K/2093056K available (1952K kernel code, 104K rwdata, 396K rodata, 64K init, 221K bss, 34608K reserved, 0K cma-reserved) [ 0.000000] SLUB: HWalign=64, Order=0-3, MinObjects=0, CPUs=1, Nodes=1 [ 0.000000] NR_IRQS:0 nr_irqs:0 0 [ 0.000000] clocksource: riscv_clocksource: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 191126044627 ns [ 0.000000] Calibrating delay loop (skipped), value calculated using timer frequency.. 20.00 BogoMIPS (lpj=100000) [ 0.000000] pid_max: default: 32768 minimum: 301 [ 0.000000] Mount-cache hash table entries: 4096 (order: 3, 32768 bytes) [ 0.000000] Mountpoint-cache hash table entries: 4096 (order: 3, 32768 bytes) [ 0.000000] devtmpfs: initialized [ 0.000000] clocksource: jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604462750000 ns [ 0.000000] NET: Registered protocol family 16 [ 0.000000] clocksource: Switched to clocksource riscv_clocksource [ 0.000000] NET: Registered protocol family 2 [ 0.000000] TCP established hash table entries: 16384 (order: 5, 131072 bytes) [ 0.000000] TCP bind hash table entries: 16384 (order: 5, 131072 bytes) [ 0.000000] TCP: Hash tables configured (established 16384 bind 16384) [ 0.000000] UDP hash table entries: 1024 (order: 3, 32768 bytes) [ 0.000000] UDP-Lite hash table entries: 1024 (order: 3, 32768 bytes) [ 0.000000] NET: Registered protocol family 1 [ 0.010000] console [sbi_console0] enabled [ 0.010000] futex hash table entries: 256 (order: 0, 6144 bytes) [ 0.010000] workingset: timestamp_bits=61 max_order=19 bucket_order=0 [ 0.020000] jitterentropy: Initialization failed with host not compliant with requirements: 2 [ 0.020000] io scheduler noop registered [ 0.020000] io scheduler cfq registered (default) [ 0.020000] VFS: Cannot open root device "(null)" or unknown-block(0,0): error -6 [ 0.020000] Please append a correct "root=" boot option; here are the available partitions: [ 0.020000] Kernel panic - not syncing: VFS: Unable to mount root fs on unknown-block(0,0) [ 0.020000] CPU: 0 PID: 1 Comm: swapper Not tainted 4.6.3 #1 [ 0.020000] Call Trace: [ 0.020000] [<ffffffff80011f5c>] walk_stackframe+0x0/0xc8 [ 0.020000] [<ffffffff80053a00>] panic+0xe0/0x1f4 [ 0.020000] [<ffffffff8000115c>] mount_block_root+0x234/0x310 [ 0.020000] [<ffffffff800013f0>] prepare_namespace+0x138/0x188 [ 0.020000] [<ffffffff80000d48>] kernel_init_freeable+0x1b0/0x1e8 [ 0.020000] [<ffffffff801f41ac>] rest_init+0x7c/0x80 [ 0.020000] [<ffffffff801f41c0>] kernel_init+0x10/0x110 [ 0.020000] [<ffffffff801f41ac>] rest_init+0x7c/0x80 [ 0.020000] [<ffffffff80010bdc>] ret_from_syscall+0x10/0x14 [ 0.020000] ---[ end Kernel panic - not syncing: VFS: Unable to mount root fs on unknown-block(0,0)