# git rev-parse -q --verify cd81acc600a9684ea4b4d25a47900d38a3890eab^{commit}
cd81acc600a9684ea4b4d25a47900d38a3890eab
already have revision, skipping fetch
# git checkout -q -f -B kisskb cd81acc600a9684ea4b4d25a47900d38a3890eab
# git clean -qxdf
# < git log -1
# commit cd81acc600a9684ea4b4d25a47900d38a3890eab
# Author: Nicholas Piggin <npiggin@gmail.com>
# Date:   Tue Nov 17 23:56:17 2020 +1000
# 
#     powerpc/64s/exception: KVM Fix for host DSI being taken in HPT guest MMU context
#     
#     Commit 2284ffea8f0c ("powerpc/64s/exception: Only test KVM in SRR
#     interrupts when PR KVM is supported") removed KVM guest tests from
#     interrupts that do not set HV=1, when PR-KVM is not configured.
#     
#     This is wrong for HV-KVM HPT guest MMIO emulation case which attempts
#     to load the faulting instruction word with MSR[DR]=1 and MSR[HV]=1 with
#     the guest MMU context loaded. This can cause host DSI, DSLB interrupts
#     which must test for KVM guest. Restore this and add a comment.
#     
#     Fixes: 2284ffea8f0c ("powerpc/64s/exception: Only test KVM in SRR interrupts when PR KVM is supported")
#     Cc: stable@vger.kernel.org # v5.7+
#     Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
#     Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
#     Link: https://lore.kernel.org/r/20201117135617.3521127-1-npiggin@gmail.com
# < /opt/cross/kisskb/korg/gcc-4.9.4-nolibc/powerpc64-linux/bin/powerpc64-linux-gcc --version
# < /opt/cross/kisskb/korg/gcc-4.9.4-nolibc/powerpc64-linux/bin/powerpc64-linux-ld --version
# < git log --format=%s --max-count=1 cd81acc600a9684ea4b4d25a47900d38a3890eab
# < make -s -j 120 ARCH=powerpc O=/kisskb/build/powerpc-fixes_mpc885_ads_defconfig+HUGETLB_powerpc-gcc4.9 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-4.9.4-nolibc/powerpc64-linux/bin/powerpc64-linux-  mpc885_ads_defconfig
# Added to kconfig CONFIG_HUGETLBFS=y
# yes \n | make -s -j 120 ARCH=powerpc O=/kisskb/build/powerpc-fixes_mpc885_ads_defconfig+HUGETLB_powerpc-gcc4.9 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-4.9.4-nolibc/powerpc64-linux/bin/powerpc64-linux-  oldconfig
yes: standard output: Broken pipe
# make -s -j 120 ARCH=powerpc O=/kisskb/build/powerpc-fixes_mpc885_ads_defconfig+HUGETLB_powerpc-gcc4.9 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-4.9.4-nolibc/powerpc64-linux/bin/powerpc64-linux-  
INFO: Uncompressed kernel (size 0x40a3fc) overlaps the address of the wrapper(0x400000)
INFO: Fixing the link_address of wrapper to (0x500000)
Image Name:   Linux-5.10.0-rc2-gcd81acc600a9
Created:      Fri Nov 20 21:30:01 2020
Image Type:   PowerPC Linux Kernel Image (gzip compressed)
Data Size:    2035460 Bytes = 1987.75 KiB = 1.94 MiB
Load Address: 00500000
Entry Point:  00500204
Completed OK
# rm -rf /kisskb/build/powerpc-fixes_mpc885_ads_defconfig+HUGETLB_powerpc-gcc4.9
# Build took: 0:00:31.642160