# git rev-parse -q --verify fe8a1487c462c9afb7a7da862b0747b1f57229e7^{commit} fe8a1487c462c9afb7a7da862b0747b1f57229e7 already have revision, skipping fetch # git checkout -q -f -B kisskb fe8a1487c462c9afb7a7da862b0747b1f57229e7 # git clean -qxdf # < git log -1 # commit fe8a1487c462c9afb7a7da862b0747b1f57229e7 # Author: Fabiano Rosas # Date: Tue Jan 25 18:56:55 2022 -0300 # # KVM: PPC: Book3s: mmio: Deliver DSI after emulation failure # # MMIO emulation can fail if the guest uses an instruction that we are # not prepared to emulate. Since these instructions can be and most # likely are valid ones, this is (slightly) closer to an access fault # than to an illegal instruction, so deliver a Data Storage interrupt # instead of a Program interrupt. # # BookE ignores bad faults, so it will keep using a Program interrupt # because a DSI would cause a fault loop in the guest. # # Suggested-by: Nicholas Piggin # Signed-off-by: Fabiano Rosas # Reviewed-by: Nicholas Piggin # Signed-off-by: Michael Ellerman # Link: https://lore.kernel.org/r/20220125215655.1026224-6-farosas@linux.ibm.com # < /opt/cross/kisskb/korg/gcc-11.1.0-nolibc/powerpc64-linux/bin/powerpc64-linux-gcc --version # < /opt/cross/kisskb/korg/gcc-11.1.0-nolibc/powerpc64-linux/bin/powerpc64-linux-ld --version # < git log --format=%s --max-count=1 fe8a1487c462c9afb7a7da862b0747b1f57229e7 # < make -s -j 48 ARCH=powerpc O=/kisskb/build/powerpc-fixes_powernv_defconfig+NO_RADIX_powerpc-gcc11 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-11.1.0-nolibc/powerpc64-linux/bin/powerpc64-linux- powernv_defconfig # Added to kconfig CONFIG_PPC_RADIX_MMU=n # < make -s -j 48 ARCH=powerpc O=/kisskb/build/powerpc-fixes_powernv_defconfig+NO_RADIX_powerpc-gcc11 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-11.1.0-nolibc/powerpc64-linux/bin/powerpc64-linux- help # make -s -j 48 ARCH=powerpc O=/kisskb/build/powerpc-fixes_powernv_defconfig+NO_RADIX_powerpc-gcc11 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-11.1.0-nolibc/powerpc64-linux/bin/powerpc64-linux- olddefconfig # make -s -j 48 ARCH=powerpc O=/kisskb/build/powerpc-fixes_powernv_defconfig+NO_RADIX_powerpc-gcc11 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-11.1.0-nolibc/powerpc64-linux/bin/powerpc64-linux- Completed OK # rm -rf /kisskb/build/powerpc-fixes_powernv_defconfig+NO_RADIX_powerpc-gcc11 # Build took: 0:04:10.249779