# git rev-parse -q --verify 50ad3f0d00248ed0dda6c8bb69e603b3e900161b^{commit} 50ad3f0d00248ed0dda6c8bb69e603b3e900161b already have revision, skipping fetch # git checkout -q -f -B kisskb 50ad3f0d00248ed0dda6c8bb69e603b3e900161b # git clean -qxdf # < git log -1 # commit 50ad3f0d00248ed0dda6c8bb69e603b3e900161b # Author: Aneesh Kumar K.V # Date: Mon Jul 27 14:29:08 2020 +0530 # # powerpc/book3s64/radix: Add kernel command line option to disable radix GTSE # # This adds a kernel command line option that can be used to disable GTSE support. # Disabling GTSE implies kernel will make hcalls to invalidate TLB entries. # # This was done so that we can do VM migration between configs that enable/disable # GTSE support via hypervisor. To migrate a VM from a system that supports # GTSE to a system that doesn't, we can boot the guest with # radix_hcall_invalidate=on, thereby forcing the guest to use hcalls for TLB # invalidates. # # The check for hcall availability is done in pSeries_setup_arch so that # the panic message appears on the console. This should only happen on # a hypervisor that doesn't force the guest to hash translation even # though it can't handle the radix GTSE=0 request via CAS. With # radix_hcall_invalidate=on if the hypervisor doesn't support hcall_rpt_invalidate # hcall it should force the LPAR to hash translation. # # Signed-off-by: Aneesh Kumar K.V # Tested-by: Bharata B Rao # Signed-off-by: Michael Ellerman # Link: https://lore.kernel.org/r/20200727085908.420806-1-aneesh.kumar@linux.ibm.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 50ad3f0d00248ed0dda6c8bb69e603b3e900161b # < make -s -j 80 ARCH=powerpc O=/kisskb/build/powerpc-next-rand_randconfig+ppc64le_powerpc-gcc9 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-9.2.0-nolibc/powerpc64-linux/bin/powerpc64-linux- randconfig KCONFIG_SEED=0x50E25C22 # Added to kconfig CONFIG_STANDALONE=y # Added to kconfig CONFIG_BUILD_DOCSRC=n # Added to kconfig CONFIG_MODULE_SIG=n # Added to kconfig CONFIG_CPU_BIG_ENDIAN=n # Added to kconfig CONFIG_CPU_LITTLE_ENDIAN=y # Added to kconfig CONFIG_PPC64=y # Added to kconfig CONFIG_PPC_BOOK3E_64=n # Added to kconfig CONFIG_PPC_BOOK3S_64=y # Added to kconfig CONFIG_PPC_DISABLE_WERROR=y # Added to kconfig CONFIG_SECTION_MISMATCH_WARN_ONLY=y # Added to kconfig CONFIG_PREVENT_FIRMWARE_BUILD=y # Added to kconfig CONFIG_LD_HEAD_STUB_CATCH=y # Added to kconfig CONFIG_TRIM_UNUSED_KSYMS=n # Added to kconfig CONFIG_UBSAN=n # < make -s -j 80 ARCH=powerpc O=/kisskb/build/powerpc-next-rand_randconfig+ppc64le_powerpc-gcc9 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-9.2.0-nolibc/powerpc64-linux/bin/powerpc64-linux- help # make -s -j 80 ARCH=powerpc O=/kisskb/build/powerpc-next-rand_randconfig+ppc64le_powerpc-gcc9 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-9.2.0-nolibc/powerpc64-linux/bin/powerpc64-linux- olddefconfig .config:3234:warning: override: reassigning to symbol STANDALONE .config:3241:warning: override: reassigning to symbol PPC_BOOK3S_64 .config:3242:warning: override: reassigning to symbol PPC_DISABLE_WERROR .config:3243:warning: override: reassigning to symbol SECTION_MISMATCH_WARN_ONLY .config:3246:warning: override: reassigning to symbol TRIM_UNUSED_KSYMS WARNING: unmet direct dependencies detected for HOTPLUG_PCI_POWERNV Depends on [n]: PCI [=y] && HOTPLUG_PCI [=n] && PPC_POWERNV [=y] && EEH [=y] Selected by [m]: - OCXL [=m] && PPC_POWERNV [=y] && PCI [=y] && EEH [=y] # make -s -j 80 ARCH=powerpc O=/kisskb/build/powerpc-next-rand_randconfig+ppc64le_powerpc-gcc9 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-9.2.0-nolibc/powerpc64-linux/bin/powerpc64-linux- WARNING: unmet direct dependencies detected for HOTPLUG_PCI_POWERNV Depends on [n]: PCI [=y] && HOTPLUG_PCI [=n] && PPC_POWERNV [=y] && EEH [=y] Selected by [m]: - OCXL [=m] && PPC_POWERNV [=y] && PCI [=y] && EEH [=y] WARNING: unmet direct dependencies detected for HOTPLUG_PCI_POWERNV Depends on [n]: PCI [=y] && HOTPLUG_PCI [=n] && PPC_POWERNV [=y] && EEH [=y] Selected by [m]: - OCXL [=m] && PPC_POWERNV [=y] && PCI [=y] && EEH [=y] WARNING: unmet direct dependencies detected for HOTPLUG_PCI_POWERNV Depends on [n]: PCI [=y] && HOTPLUG_PCI [=n] && PPC_POWERNV [=y] && EEH [=y] Selected by [m]: - OCXL [=m] && PPC_POWERNV [=y] && PCI [=y] && EEH [=y] /kisskb/src/arch/powerpc/kernel/eeh.c:1639:12: warning: 'proc_eeh_show' defined but not used [-Wunused-function] 1639 | static int proc_eeh_show(struct seq_file *m, void *v) | ^~~~~~~~~~~~~ Completed OK # rm -rf /kisskb/build/powerpc-next-rand_randconfig+ppc64le_powerpc-gcc9 # Build took: 0:02:58.350654