# 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 # 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 # Signed-off-by: Michael Ellerman # Link: https://lore.kernel.org/r/20201117135617.3521127-1-npiggin@gmail.com # < /opt/cross/kisskb/korg/gcc-9.2.0-nolibc/powerpc64-linux/bin/powerpc64-linux-gcc --version # < /opt/cross/kisskb/korg/gcc-9.2.0-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_ppc64_defconfig+UP_powerpc-gcc9 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-9.2.0-nolibc/powerpc64-linux/bin/powerpc64-linux- ppc64_defconfig # Added to kconfig CONFIG_SMP=n # yes \n | make -s -j 120 ARCH=powerpc O=/kisskb/build/powerpc-fixes_ppc64_defconfig+UP_powerpc-gcc9 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-9.2.0-nolibc/powerpc64-linux/bin/powerpc64-linux- oldconfig yes: standard output: Broken pipe # make -s -j 120 ARCH=powerpc O=/kisskb/build/powerpc-fixes_ppc64_defconfig+UP_powerpc-gcc9 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-9.2.0-nolibc/powerpc64-linux/bin/powerpc64-linux- Completed OK # rm -rf /kisskb/build/powerpc-fixes_ppc64_defconfig+UP_powerpc-gcc9 # Build took: 0:02:33.180268