# git rev-parse -q --verify 83654d1d047c98341f1f4472d31c189b3bf0ebe7^{commit}
83654d1d047c98341f1f4472d31c189b3bf0ebe7
already have revision, skipping fetch
# git checkout -q -f -B kisskb 83654d1d047c98341f1f4472d31c189b3bf0ebe7
# git clean -qxdf
# < git log -1
# commit 83654d1d047c98341f1f4472d31c189b3bf0ebe7
# Author: Thiago Jung Bauermann <bauerman@linux.ibm.com>
# Date:   Wed Sep 11 13:34:33 2019 -0300
# 
#     powerpc/prom_init: Undo relocation before entering secure mode
#     
#     The ultravisor will do an integrity check of the kernel image but we
#     relocated it so the check will fail. Restore the original image by
#     relocating it back to the kernel virtual base address.
#     
#     This works because during build vmlinux is linked with an expected
#     virtual runtime address of KERNELBASE.
#     
#     Fixes: 6a9c930bd775 ("powerpc/prom_init: Add the ESM call to prom_init")
#     Signed-off-by: Thiago Jung Bauermann <bauerman@linux.ibm.com>
#     Tested-by: Ram Pai <linuxram@us.ibm.com>
#     [mpe: Add IS_ENABLED() to fix the CONFIG_RELOCATABLE=n build]
#     Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
#     Link: https://lore.kernel.org/r/20190911163433.12822-1-bauerman@linux.ibm.com
# < /opt/cross/kisskb/korg/gcc-5.5.0-nolibc/powerpc64-linux/bin/powerpc64-linux-gcc --version
# < /opt/cross/kisskb/korg/gcc-5.5.0-nolibc/powerpc64-linux/bin/powerpc64-linux-ld --version
# < git log --format=%s --max-count=1 83654d1d047c98341f1f4472d31c189b3bf0ebe7
# < make -s -j 120 ARCH=powerpc O=/kisskb/build/powerpc-fixes_40x_obs600_defconfig_powerpc-gcc5 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-5.5.0-nolibc/powerpc64-linux/bin/powerpc64-linux-  40x/obs600_defconfig
# make -s -j 120 ARCH=powerpc O=/kisskb/build/powerpc-fixes_40x_obs600_defconfig_powerpc-gcc5 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-5.5.0-nolibc/powerpc64-linux/bin/powerpc64-linux-  
/kisskb/src/arch/powerpc/kernel/head_40x.S: Assembler messages:
/kisskb/src/arch/powerpc/kernel/head_40x.S:802: Warning: invalid register expression
INFO: Uncompressed kernel (size 0x4c9e6c) overlaps the address of the wrapper(0x400000)
INFO: Fixing the link_address of wrapper to (0x500000)
Image Name:   Linux-5.4.0-rc2-g83654d1d047c
Created:      Mon Oct 28 20:11:56 2019
Image Type:   PowerPC Linux Multi-File Image (gzip compressed)
Data Size:    2461518 Bytes = 2403.83 KiB = 2.35 MiB
Load Address: 00000000
Entry Point:  00000000
Contents:
   Image 0: 2454630 Bytes = 2397.10 KiB = 2.34 MiB
   Image 1: 2 Bytes = 0.00 KiB = 0.00 MiB
   Image 2: 6866 Bytes = 6.71 KiB = 0.01 MiB
Completed OK
# rm -rf /kisskb/build/powerpc-fixes_40x_obs600_defconfig_powerpc-gcc5
# Build took: 0:00:22.219675