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| author | Yaroslav Kurlaev <yaroslav.kurlaev@3mdeb.com> | 2021-07-02 14:34:00 +0700 |
|---|---|---|
| committer | Felix Held <felix-coreboot@felixheld.de> | 2022-02-11 20:14:55 +0000 |
| commit | c1de9e88e7edd85d2a4fe5b7f2f4a30ff4716a10 (patch) | |
| tree | 7810495f2458ee6b4d28d1da02a026f2673bded2 /Documentation/mainboard | |
| parent | d49545642996fc6c3e924a1b447ad98904794266 (diff) | |
src/mainboard/emulation/qemu-power9/*: add QEMU POWER9 mainboard
Add initial implementation for booting on QEMU POWER9 emulation.
Change-Id: I079c5b9ad564024dd13296ef75c263bdc40c9d39
Signed-off-by: Yaroslav Kurlaev <yaroslav.kurlaev@3mdeb.com>
Signed-off-by: Sergii Dmytruk <sergii.dmytruk@3mdeb.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/57079
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Michał Żygowski <michal.zygowski@3mdeb.com>
Diffstat (limited to 'Documentation/mainboard')
| -rw-r--r-- | Documentation/mainboard/emulation/qemu-power9.md | 30 |
1 files changed, 30 insertions, 0 deletions
diff --git a/Documentation/mainboard/emulation/qemu-power9.md b/Documentation/mainboard/emulation/qemu-power9.md new file mode 100644 index 0000000000..3e2c75f9f4 --- /dev/null +++ b/Documentation/mainboard/emulation/qemu-power9.md @@ -0,0 +1,30 @@ +# QEMU PPC64 emulator +This page describes how to build and run coreboot for QEMU/PPC64. +You can configure ELF payload via `make menuconfig` (make sure "ROM chip size" +is large enough). + +## Running coreboot in QEMU +```bash +qemu-system-ppc64 -M powernv,hb-mode=on \ + -cpu power9 \ + -bios build/coreboot.rom \ + -drive file=build/coreboot.rom,if=mtd \ + -serial stdio \ + -display none +``` + +- The default CPU in QEMU for AArch64 is a 604. You specify a suitable +PowerPC CPU via `-cpu power9`. +- By default Hostboot mode is off and it needs to be turned on to run coreboot +as a firmware rather than like an OS. +- `-bios` specifies initial program (bootloader should suffice, but whole image +works fine too). +- `-drive` specifies image for emulated flash device. + +## Building coreboot +```bash +make defconfig KBUILD_DEFCONFIG=configs/config.emulation_qemu_power9 +make +``` + +This builds coreboot with no payload. |