https://github.com/3mdeb/meta-ppc64
https://github.com/3mdeb/meta-ppc64
Last synced: 5 months ago
JSON representation
- Host: GitHub
- URL: https://github.com/3mdeb/meta-ppc64
- Owner: 3mdeb
- License: mit
- Created: 2020-10-22T16:34:05.000Z (over 5 years ago)
- Default Branch: master
- Last Pushed: 2021-05-19T06:28:13.000Z (about 5 years ago)
- Last Synced: 2023-09-21T15:12:34.727Z (over 2 years ago)
- Language: NASL
- Size: 52.7 KB
- Stars: 1
- Watchers: 8
- Forks: 0
- Open Issues: 0
-
Metadata Files:
- Readme: README.md
- License: COPYING
Awesome Lists containing this project
README
# meta-ppc64
The goal is to provide `ppc64` QEMU targets for modern `ppc64` systems.
Currently available targets:
- `qemuppc64` - targets
[IBM POWER9 architecture](https://en.wikipedia.org/wiki/POWER9) (Big Endian)
```
SHELL=/bin/bash kas-docker -shell meta-ppc64/kas-be.yml
```
- `qemuppc64le` - targets
[IBM POWER9 architecture](https://en.wikipedia.org/wiki/POWER9) (Little Endian)
```
SHELL=/bin/bash kas-docker -shell meta-ppc64/kas-be.yml
```
## Notes
* Cannot get the login prompt (both on LE or BE builds):
- can just stuck:
```
[ 3.076659] udevd (79) used greatest stack depth: 10024 bytes left
[ 3.092691] udevd[80]: starting eudev-3.2.9
[ 5.186145] EXT4-fs (vda): re-mounted. Opts: (null)
[ 5.186906] ext4 filesystem being remounted at / supports timestamps until 2038 (0x7fffffff)
[ 7.370678] urandom_read: 4 callbacks suppressed
[ 7.370816] random: dd: uninitialized urandom read (512 bytes read)
```
- or could even crash (depending on the serial QEMU params):
```
[ 1.374644] Driver 'hvc_console' was unable to register with bus_type 'vio' because the bus was not initialized.
[ 1.376651] hvc0: raw protocol on /ibm,opal/consoles/serial@0 (boot console)
[ 1.377099] hvc0: No interrupts property, using OPAL event
[ 1.380151] Serial: 8250/16550 driver, 4 ports, IRQ sharing disabled
[ 1.387642] printk: console [ttyS0] disabled
[ 1.389410] BUG: Unable to handle kernel data access on read at 0xc00a0000000003e9
[ 1.389927] Faulting instruction address: 0xc0000000008d79f4
[ 1.390532] Oops: Kernel access of bad area, sig: 11 [#1]
[ 1.390812] LE PAGE_SIZE=64K MMU=Radix SMP NR_CPUS=2048 NUMA PowerNV
[ 1.391331] Modules linked in:
[ 1.391790] CPU: 1 PID: 1 Comm: swapper/0 Not tainted 5.8.13-yocto-standard #1
[ 1.392237] NIP: c0000000008d79f4 LR: c0000000008d9cf8 CTR: c0000000008d7960
[ 1.392696] REGS: c0000000723c2f70 TRAP: 0300 Not tainted (5.8.13-yocto-standard)
[ 1.393104] MSR: 9000000002009033 CR: 24000220 XER: 20040000
[ 1.393714] CFAR: c0000000008d799c DAR: c00a0000000003e9 DSISR: 40000000 IRQMASK: 1
[ 1.393714] GPR00: c0000000008d9cf8 c0000000723c3200 c000000001921f00 c00a0000000003e9
[ 1.393714] GPR04: c00a000000000000 00000000000003ef c0000000017ac378 0000000000000000
[ 1.393714] GPR08: 0000000000000000 c0000000019cab10 0000000031000040 00000000fffffffe
[ 1.393714] GPR12: 0000000000000000 c00000007ffff280 c000000000012190 0000000000000000
[ 1.393714] GPR16: 0000000000000000 0000000000000000 0000000000000000 0000000000000000
[ 1.393714] GPR20: 0000000000000000 0000000000000000 0000000000000000 0000000000000000
[ 1.393714] GPR24: 0000000000000000 c00000000125ad38 c000000001857140 0000000000000000
[ 1.393714] GPR28: ffffffffffffffea c000000072d87908 0000000000000001 c000000001adab40
[ 1.397765] NIP [c0000000008d79f4] io_serial_in+0x94/0x100
[ 1.398104] LR [c0000000008d9cf8] serial8250_config_port+0x3b8/0x1240
[ 1.398619] Call Trace:
[ 1.398977] [c0000000723c3200] [0000000000000005] 0x5 (unreliable)
[ 1.399428] [c0000000723c3230] [c0000000008d9970] serial8250_config_port+0x30/0x1240
[ 1.399874] [c0000000723c32d0] [c0000000008d3570] uart_add_one_port+0x250/0x690
[ 1.400311] [c0000000723c33e0] [c0000000008d5138] serial8250_register_8250_port+0x368/0x5a0
[ 1.400767] [c0000000723c3470] [c0000000008d56fc] serial8250_probe+0x14c/0x1e0
[ 1.401194] [c0000000723c37e0] [c000000000995d50] platform_drv_probe+0x60/0xf0
[ 1.401603] [c0000000723c3860] [c00000000099208c] really_probe+0x12c/0x580
[ 1.401976] [c0000000723c3910] [c000000000992808] driver_probe_device+0x88/0x120
[ 1.402373] [c0000000723c3940] [c000000000992d2c] device_driver_attach+0x11c/0x130
[ 1.402805] [c0000000723c3980] [c000000000992dec] __driver_attach+0xac/0x190
[ 1.403185] [c0000000723c39d0] [c00000000098e868] bus_for_each_dev+0xa8/0x130
[ 1.403564] [c0000000723c3a30] [c0000000009914b4] driver_attach+0x34/0x50
[ 1.403935] [c0000000723c3a50] [c000000000990bd0] bus_add_driver+0x170/0x2b0
[ 1.404329] [c0000000723c3ae0] [c000000000993fd4] driver_register+0xb4/0x1c0
[ 1.404690] [c0000000723c3b50] [c000000000995c5c] __platform_driver_register+0x5c/0x70
[ 1.405092] [c0000000723c3b70] [c0000000012cbed4] serial8250_init+0x16c/0x1d8
[ 1.405454] [c0000000723c3c00] [c000000000011b30] do_one_initcall+0x60/0x2b0
[ 1.405828] [c0000000723c3cd0] [c000000001284408] kernel_init_freeable+0x2e0/0x3a4
[ 1.406199] [c0000000723c3db0] [c0000000000121b4] kernel_init+0x2c/0x158
[ 1.406616] [c0000000723c3e20] [c00000000000d1a8] ret_from_kernel_thread+0x5c/0x74
[ 1.407061] Instruction dump:
[ 1.407492] 38210030 7fe3fb78 ebe1fff8 4e800020 60000000 60000000 60420000 3d22000b
[ 1.407930] 39298c10 e8890000 7c632214 7c0004ac <8be30000> 0c1f0000 4c00012c 57ff063e
[ 1.408889] ---[ end trace 57df7bc12c90327a ]---
[ 1.409238]
[ 2.410095] Kernel panic - not syncing: Attempted to kill init! exitcode=0x0000000b
[ 12.174535161,3] Could not set special wakeup on 0:0: timeout waiting for SPECIAL_WKUP_DONE.
[ 2.517929] Rebooting in 10 seconds..
```
* Big endian `zImage.epapr` build fails at:
```
WARNING: linux-yocto-5.8.13+gitAUTOINC+34775c20bc_5981001bf0-r0 do_package_qa: QA Issue: kernel-image-zimage.epapr: ELF binary /boot/zImage.epapr-5.8.13-yocto-standard has relocations in .text [textrel]
ERROR: linux-yocto-5.8.13+gitAUTOINC+34775c20bc_5981001bf0-r0 do_package_qa: QA Issue: Architecture did not match (PowerPC, expected Unknown (21)) in /boot/zImage.epapr-5.8.13-yocto-standard [arch]
WARNING: linux-yocto-5.8.13+gitAUTOINC+34775c20bc_5981001bf0-r0 do_package_qa: QA Issue: kernel-vmlinux: ELF binary /boot/vmlinux-5.8.13-yocto-standard has relocations in .text [textrel]
ERROR: linux-yocto-5.8.13+gitAUTOINC+34775c20bc_5981001bf0-r0 do_package_qa: QA run found fatal errors. Please consider fixing them.
ERROR: Logfile of failure stored in: /work/build/tmp/work/qemuppc64-poky-linux/linux-yocto/5.8.13+gitAUTOINC+34775c20bc_5981001bf0-r0/temp/log.do_package_qa.13057
ERROR: Task (/work/poky/meta/recipes-kernel/linux/linux-yocto_5.8.bb:do_package_qa) failed with exit code '1'
NOTE: Tasks Summary: Attempted 4072 tasks of which 3977 didn't need to be rerun and 1 failed.
```
- skipped for now
* Why readelf reports the Big Endian image to be 32bit? It is likely the reason
of Yocto QA check trigger?
```
readelf -h zImage.epapr_be
ELF Header:
Magic: 7f 45 4c 46 01 02 01 00 00 00 00 00 00 00 00 00
Class: ELF32
Data: 2's complement, big endian
Version: 1 (current)
OS/ABI: UNIX - System V
ABI Version: 0
Type: EXEC (Executable file)
Machine: PowerPC
Version: 0x1
Entry point address: 0x20000000
Start of program headers: 52 (bytes into file)
Start of section headers: 7237480 (bytes into file)
Flags: 0x8000, relocatable-lib
Size of this header: 52 (bytes)
Size of program headers: 32 (bytes)
Number of program headers: 3
Size of section headers: 40 (bytes)
Number of section headers: 19
Section header string table index: 18
readelf -h zImage.epapr_le
ELF Header:
Magic: 7f 45 4c 46 02 01 01 00 00 00 00 00 00 00 00 00
Class: ELF64
Data: 2's complement, little endian
Version: 1 (current)
OS/ABI: UNIX - System V
ABI Version: 0
Type: EXEC (Executable file)
Machine: PowerPC64
Version: 0x1
Entry point address: 0x20000000
Start of program headers: 64 (bytes into file)
Start of section headers: 7309688 (bytes into file)
Flags: 0x2, abiv2
Size of this header: 64 (bytes)
Size of program headers: 56 (bytes)
Number of program headers: 3
Size of section headers: 64 (bytes)
Number of section headers: 18
Section header string table index: 17
```