# 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 <aneesh.kumar@linux.ibm.com>
# 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 <aneesh.kumar@linux.ibm.com>
#     Tested-by: Bharata B Rao <bharata@linux.ibm.com>
#     Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
#     Link: https://lore.kernel.org/r/20200727085908.420806-1-aneesh.kumar@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 50ad3f0d00248ed0dda6c8bb69e603b3e900161b
# < make -s -j 48 ARCH=powerpc O=/kisskb/build/powerpc-next_44x_iss476-smp_defconfig_powerpc-gcc5 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-5.5.0-nolibc/powerpc64-linux/bin/powerpc64-linux-  44x/iss476-smp_defconfig

WARNING: unmet direct dependencies detected for HOTPLUG_CPU
  Depends on [n]: SMP [=y] && (PPC_PSERIES [=n] || PPC_PMAC [=n] || PPC_POWERNV [=n] || FSL_SOC_BOOKE [=n])
  Selected by [y]:
  - PM_SLEEP_SMP [=y] && SMP [=y] && (ARCH_SUSPEND_POSSIBLE [=y] || ARCH_HIBERNATION_POSSIBLE [=y]) && PM_SLEEP [=y]

WARNING: unmet direct dependencies detected for HOTPLUG_CPU
  Depends on [n]: SMP [=y] && (PPC_PSERIES [=n] || PPC_PMAC [=n] || PPC_POWERNV [=n] || FSL_SOC_BOOKE [=n])
  Selected by [y]:
  - PM_SLEEP_SMP [=y] && SMP [=y] && (ARCH_SUSPEND_POSSIBLE [=y] || ARCH_HIBERNATION_POSSIBLE [=y]) && PM_SLEEP [=y]
# < make -s -j 48 ARCH=powerpc O=/kisskb/build/powerpc-next_44x_iss476-smp_defconfig_powerpc-gcc5 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-5.5.0-nolibc/powerpc64-linux/bin/powerpc64-linux-  help
# make -s -j 48 ARCH=powerpc O=/kisskb/build/powerpc-next_44x_iss476-smp_defconfig_powerpc-gcc5 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-5.5.0-nolibc/powerpc64-linux/bin/powerpc64-linux-  olddefconfig

WARNING: unmet direct dependencies detected for HOTPLUG_CPU
  Depends on [n]: SMP [=y] && (PPC_PSERIES [=n] || PPC_PMAC [=n] || PPC_POWERNV [=n] || FSL_SOC_BOOKE [=n])
  Selected by [y]:
  - PM_SLEEP_SMP [=y] && SMP [=y] && (ARCH_SUSPEND_POSSIBLE [=y] || ARCH_HIBERNATION_POSSIBLE [=y]) && PM_SLEEP [=y]

WARNING: unmet direct dependencies detected for HOTPLUG_CPU
  Depends on [n]: SMP [=y] && (PPC_PSERIES [=n] || PPC_PMAC [=n] || PPC_POWERNV [=n] || FSL_SOC_BOOKE [=n])
  Selected by [y]:
  - PM_SLEEP_SMP [=y] && SMP [=y] && (ARCH_SUSPEND_POSSIBLE [=y] || ARCH_HIBERNATION_POSSIBLE [=y]) && PM_SLEEP [=y]
# make -s -j 48 ARCH=powerpc O=/kisskb/build/powerpc-next_44x_iss476-smp_defconfig_powerpc-gcc5 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-5.5.0-nolibc/powerpc64-linux/bin/powerpc64-linux-  
INFO: Uncompressed kernel (size 0x660e58) overlaps the address of the wrapper(0x400000)
INFO: Fixing the link_address of wrapper to (0x700000)
INFO: Uncompressed kernel (size 0x660e58) overlaps the address of the wrapper(0x400000)
INFO: Fixing the link_address of wrapper to (0x700000)
Completed OK
# rm -rf /kisskb/build/powerpc-next_44x_iss476-smp_defconfig_powerpc-gcc5
# Build took: 0:01:02.431408