# git rev-parse -q --verify c4aa5aa68e06ef1a2a511ef3200c6be13e620ec6^{commit}
c4aa5aa68e06ef1a2a511ef3200c6be13e620ec6
already have revision, skipping fetch
# git checkout -q -f -B kisskb c4aa5aa68e06ef1a2a511ef3200c6be13e620ec6
# git clean -qxdf
# git log -1
commit c4aa5aa68e06ef1a2a511ef3200c6be13e620ec6
Author: Suresh Warrier <warrier@linux.vnet.ibm.com>
Date:   Wed Nov 25 17:44:56 2015 -0600

    KVM: PPC: Book3S HV: Add tunable to control H_IPI redirection
    
    Redirecting the wakeup of a VCPU from the H_IPI hypercall to
    a core running in the host is usually a good idea, most workloads
    seemed to benefit. However, in one heavily interrupt-driven SMT1
    workload, some regression was observed. This patch adds a kvm_hv
    module parameter called h_ipi_redirect to control this feature.
    
    The default value for this tunable is 1 - that is enable the feature.
    
    Signed-off-by: Suresh Warrier <warrier@linux.vnet.ibm.com>
# < /opt/cross/gcc-5.2.0-nolibc/powerpc64le-linux/bin/powerpc64le-linux-gcc --version
# < git log --format=%s --max-count=1 c4aa5aa68e06ef1a2a511ef3200c6be13e620ec6
# < make -j 8 ARCH=powerpc O=/home/kisskb/slave/build/mpe-0day_ppc64le_defconfig+NO_KVM_ppc64le CROSS_COMPILE=/opt/cross/gcc-5.2.0-nolibc/powerpc64le-linux/bin/powerpc64le-linux-  ppc64le_defconfig
# Added to kconfig CONFIG_KVM_BOOK3S_64=n
# Added to kconfig CONFIG_KVM=n
# Added to kconfig 
# yes \n | make -j 8 ARCH=powerpc O=/home/kisskb/slave/build/mpe-0day_ppc64le_defconfig+NO_KVM_ppc64le CROSS_COMPILE=/opt/cross/gcc-5.2.0-nolibc/powerpc64le-linux/bin/powerpc64le-linux-  oldconfig
yes: standard output: Broken pipe
yes: write error
# make -j 8 ARCH=powerpc O=/home/kisskb/slave/build/mpe-0day_ppc64le_defconfig+NO_KVM_ppc64le CROSS_COMPILE=/opt/cross/gcc-5.2.0-nolibc/powerpc64le-linux/bin/powerpc64le-linux-  
make[1]: Entering directory '/home/kisskb/slave/build/mpe-0day_ppc64le_defconfig+NO_KVM_ppc64le'
  GEN     ./Makefile
scripts/kconfig/conf  --silentoldconfig Kconfig
  CHK     include/config/kernel.release
  GEN     ./Makefile
  WRAP    arch/powerpc/include/generated/asm/clkdev.h
  WRAP    arch/powerpc/include/generated/asm/div64.h
  WRAP    arch/powerpc/include/generated/asm/irq_regs.h
  WRAP    arch/powerpc/include/generated/asm/irq_work.h
  WRAP    arch/powerpc/include/generated/asm/local64.h
  WRAP    arch/powerpc/include/generated/asm/mcs_spinlock.h
  WRAP    arch/powerpc/include/generated/asm/preempt.h
  WRAP    arch/powerpc/include/generated/asm/rwsem.h
  CHK     include/generated/uapi/linux/version.h
  WRAP    arch/powerpc/include/generated/asm/vtime.h
  UPD     include/generated/uapi/linux/version.h
  HOSTCC  scripts/basic/bin2c
  UPD     include/config/kernel.release
  Using /home/kisskb/slave/src as source for kernel
  CHK     include/generated/utsrelease.h
  UPD     include/generated/utsrelease.h
  HOSTCC  scripts/kallsyms
  HOSTCC  scripts/dtc/dtc.o
  HOSTCC  scripts/pnmtologo
  HOSTCC  scripts/genksyms/genksyms.o
  SHIPPED scripts/genksyms/parse.tab.c
  CC      scripts/mod/empty.o
  HOSTCC  scripts/conmakehash
  HOSTCC  scripts/dtc/flattree.o
  HOSTCC  scripts/mod/mk_elfconfig
  CC      scripts/mod/devicetable-offsets.s
  MKELF   scripts/mod/elfconfig.h
  GEN     scripts/mod/devicetable-offsets.h
  HOSTCC  scripts/dtc/fstree.o
  HOSTCC  scripts/mod/sumversion.o
  HOSTCC  scripts/dtc/data.o
  CC      kernel/bounds.s
  CHK     include/generated/timeconst.h
  UPD     include/generated/timeconst.h
  SHIPPED scripts/genksyms/lex.lex.c
  SHIPPED scripts/genksyms/keywords.hash.c
  HOSTCC  scripts/dtc/livetree.o
  CHK     include/generated/bounds.h
  UPD     include/generated/bounds.h
  CC      arch/powerpc/kernel/asm-offsets.s
  SHIPPED scripts/genksyms/parse.tab.h
  HOSTCC  scripts/genksyms/parse.tab.o
  HOSTCC  scripts/genksyms/lex.lex.o
  HOSTCC  scripts/dtc/treesource.o
  HOSTCC  scripts/mod/modpost.o
  HOSTCC  scripts/dtc/srcpos.o
  HOSTCC  scripts/mod/file2alias.o
  HOSTCC  scripts/dtc/checks.o
  CHK     include/generated/asm-offsets.h
  UPD     include/generated/asm-offsets.h
  CALL    /home/kisskb/slave/src/scripts/checksyscalls.sh
  HOSTCC  scripts/dtc/util.o
  SHIPPED scripts/dtc/dtc-lexer.lex.c
  SHIPPED scripts/dtc/dtc-parser.tab.h
  SHIPPED scripts/dtc/dtc-parser.tab.c
  HOSTCC  scripts/dtc/dtc-lexer.lex.o
  HOSTCC  scripts/dtc/dtc-parser.tab.o
  HOSTLD  scripts/genksyms/genksyms
  HOSTLD  scripts/dtc/dtc
  HOSTLD  scripts/mod/modpost
  HOSTCC  usr/gen_init_cpio
  CC      init/main.o
  CHK     include/generated/compile.h
  CC      init/do_mounts.o
  CC      init/do_mounts_rd.o
  UPD     include/generated/compile.h
  CC      arch/powerpc/mm/fault.o
  CC      init/do_mounts_initrd.o
  AS      arch/powerpc/lib/string.o
  CC      arch/powerpc/lib/alloc.o
  CC      arch/powerpc/kernel/cputable.o
  GEN     usr/initramfs_data.cpio.gz
  AS      arch/powerpc/lib/crtsavres.o
  AS      usr/initramfs_data.o
  CC      arch/powerpc/lib/ppc_ksyms.o
  LD      usr/built-in.o
  CC      arch/powerpc/lib/code-patching.o
  CC      arch/powerpc/lib/feature-fixups.o
  CC      arch/powerpc/lib/sstep.o
  CC      arch/powerpc/kernel/ptrace.o
  CC      arch/powerpc/mm/mem.o
  AS      arch/powerpc/lib/ldstfp.o
  CC      arch/powerpc/sysdev/mpic.o
  CC      arch/powerpc/sysdev/mpic_msi.o
  AS      arch/powerpc/lib/feature-fixups-test.o
  CC      arch/powerpc/platforms/powernv/setup.o
  CC      arch/powerpc/lib/xor_vmx.o
  CC      arch/powerpc/kernel/syscalls.o
  CC      arch/powerpc/mm/pgtable.o
  CC      init/do_mounts_md.o
  CC      arch/powerpc/mm/mmap.o
  CC      arch/powerpc/mm/init_64.o
  CC      arch/powerpc/kernel/irq.o
  CC      arch/powerpc/mm/pgtable_64.o
  AS      arch/powerpc/platforms/powernv/opal-wrappers.o
  CC      arch/powerpc/platforms/powernv/opal.o
  AS      arch/powerpc/lib/copypage_64.o
  AS      arch/powerpc/lib/copyuser_64.o
  CC      init/initramfs.o
  CC      arch/powerpc/platforms/powernv/opal-async.o
  CC      arch/powerpc/lib/usercopy_64.o
  CC      arch/powerpc/sysdev/mpic_u3msi.o
  CC      arch/powerpc/sysdev/msi_bitmap.o
  AS      arch/powerpc/lib/mem_64.o
  AS      arch/powerpc/lib/hweight_64.o
  AS      arch/powerpc/lib/copyuser_power7.o
  AS      arch/powerpc/lib/string_64.o
  AS      arch/powerpc/lib/copypage_power7.o
  CC      arch/powerpc/platforms/pseries/lpar.o
  AS      arch/powerpc/lib/memcpy_power7.o
  AS      arch/powerpc/lib/memcpy_64.o
  AS      arch/powerpc/lib/memcmp_64.o
  CC      arch/powerpc/kernel/align.o
  CC      arch/powerpc/lib/locks.o
  CC      arch/powerpc/mm/hash_utils_64.o
  CC      arch/powerpc/platforms/powernv/idle.o
  CC      arch/powerpc/sysdev/i8259.o
  CC      arch/powerpc/lib/vmx-helper.o
  CC      init/init_task.o
  LD      arch/powerpc/math-emu/built-in.o
  AS      arch/powerpc/platforms/pseries/hvCall.o
  CC      init/version.o
  LD      arch/powerpc/lib/built-in.o
  LD      init/mounts.o
  CC      arch/powerpc/platforms/pseries/nvram.o
  CC      arch/powerpc/kernel/signal_32.o
  CC      arch/powerpc/kernel/pmc.o
  CC      arch/powerpc/sysdev/scom.o
  CC      arch/powerpc/platforms/powernv/opal-rtc.o
  LD      arch/powerpc/crypto/built-in.o
  AS      arch/powerpc/net/bpf_jit_asm.o
  CC      arch/powerpc/net/bpf_jit_comp.o
  LD      init/built-in.o
  CC      arch/powerpc/xmon/xmon.o
  CC      arch/powerpc/platforms/pseries/reconfig.o
  CC      arch/powerpc/perf/callchain.o
  CC      arch/powerpc/sysdev/xics/xics-common.o
  CC      arch/powerpc/platforms/powernv/opal-nvram.o
  AS      arch/powerpc/mm/slb_low.o
  CC      arch/powerpc/mm/slb.o
  CC      arch/powerpc/kernel/vdso.o
  CC      arch/powerpc/platforms/powernv/opal-lpc.o
  CC      arch/powerpc/platforms/pseries/of_helpers.o
  CC      arch/powerpc/perf/core-book3s.o
  CC      arch/powerpc/sysdev/xics/icp-native.o
  CC      arch/powerpc/mm/hash_native_64.o
  CC      arch/powerpc/platforms/pseries/setup.o
/home/kisskb/slave/src/arch/powerpc/sysdev/xics/icp-native.c: In function 'icp_native_cause_ipi_rm':
/home/kisskb/slave/src/arch/powerpc/sysdev/xics/icp-native.c:177:23: error: 'struct paca_struct' has no member named 'kvm_hstate'
  xics_phys = paca[cpu].kvm_hstate.xics_phys;
                       ^
/home/kisskb/slave/src/scripts/Makefile.build:258: recipe for target 'arch/powerpc/sysdev/xics/icp-native.o' failed
make[3]: *** [arch/powerpc/sysdev/xics/icp-native.o] Error 1
/home/kisskb/slave/src/scripts/Makefile.build:403: recipe for target 'arch/powerpc/sysdev/xics' failed
make[2]: *** [arch/powerpc/sysdev/xics] Error 2
/home/kisskb/slave/src/Makefile:943: recipe for target 'arch/powerpc/sysdev' failed
make[1]: *** [arch/powerpc/sysdev] Error 2
make[1]: *** Waiting for unfinished jobs....
  CC      arch/powerpc/platforms/pseries/iommu.o
  CC      arch/powerpc/kernel/process.o
  CC      arch/powerpc/platforms/powernv/opal-flash.o
  LD      arch/powerpc/net/built-in.o
  CC      arch/powerpc/platforms/powernv/rng.o
  AS      arch/powerpc/mm/hash_low_64.o
  CC      arch/powerpc/mm/tlb_hash64.o
  CC      arch/powerpc/mm/mmu_context_hash64.o
  CC      arch/powerpc/platforms/powernv/opal-elog.o
  CC      arch/powerpc/mm/numa.o
  AS      arch/powerpc/perf/bhrb.o
  CC      arch/powerpc/xmon/nonstdio.o
  CC      arch/powerpc/perf/hv-24x7.o
  CC      arch/powerpc/xmon/ppc-dis.o
  CC      arch/powerpc/perf/hv-gpci.o
  CC      arch/powerpc/platforms/pseries/event_sources.o
  CC      arch/powerpc/platforms/powernv/opal-dump.o
  CC      arch/powerpc/xmon/ppc-opc.o
  CC      arch/powerpc/platforms/powernv/opal-sysparam.o
  CPP     arch/powerpc/kernel/systbl_chk.i
  CC      arch/powerpc/kernel/idle.o
  CC      arch/powerpc/platforms/pseries/ras.o
  CC      arch/powerpc/kernel/signal.o
  CC      arch/powerpc/mm/vphn.o
  CC      arch/powerpc/platforms/powernv/opal-sensor.o
  CC      arch/powerpc/platforms/pseries/firmware.o
  CC      arch/powerpc/perf/hv-common.o
  CC      arch/powerpc/platforms/powernv/opal-msglog.o
  CC      arch/powerpc/kernel/sysfs.o
  CC      arch/powerpc/perf/power4-pmu.o
  CC      arch/powerpc/platforms/pseries/power.o
  CC      arch/powerpc/mm/slice.o
  CC      arch/powerpc/platforms/pseries/dlpar.o
  CC      arch/powerpc/platforms/powernv/opal-hmi.o
  CC      arch/powerpc/perf/ppc970-pmu.o
  CC      arch/powerpc/perf/power5-pmu.o
  CC      arch/powerpc/kernel/cacheinfo.o
  CC      arch/powerpc/platforms/powernv/opal-power.o
  CC      arch/powerpc/kernel/time.o
  CC      arch/powerpc/platforms/pseries/mobility.o
  CC      arch/powerpc/perf/power5+-pmu.o
  CC      arch/powerpc/mm/hugetlbpage.o
  LD      arch/powerpc/xmon/built-in.o
  CC      arch/powerpc/kernel/prom.o
  CC      arch/powerpc/platforms/powernv/opal-irqchip.o
  CC      arch/powerpc/platforms/powernv/smp.o
  CC      arch/powerpc/platforms/pseries/rng.o
  CC      arch/powerpc/perf/power6-pmu.o
  CC      arch/powerpc/platforms/powernv/subcore.o
  CC      arch/powerpc/kernel/traps.o
  CC      arch/powerpc/platforms/pseries/pci.o
  CC      arch/powerpc/kernel/setup-common.o
  CC      arch/powerpc/mm/hugetlbpage-hash64.o
  AS      arch/powerpc/platforms/powernv/subcore-asm.o
  CC      arch/powerpc/platforms/powernv/pci.o
  CC      arch/powerpc/platforms/pseries/pci_dlpar.o
  CC      arch/powerpc/mm/copro_fault.o
  CC      arch/powerpc/perf/power7-pmu.o
  CC      arch/powerpc/perf/power8-pmu.o
  CC      arch/powerpc/platforms/pseries/eeh_pseries.o
  LD      arch/powerpc/mm/built-in.o
  CC      arch/powerpc/platforms/pseries/msi.o
  CC      arch/powerpc/kernel/udbg.o
  CC      arch/powerpc/platforms/pseries/smp.o
  AS      arch/powerpc/kernel/misc.o
  CC      arch/powerpc/kernel/io.o
  CC      arch/powerpc/kernel/dma.o
  LD      arch/powerpc/perf/built-in.o
  CC      arch/powerpc/platforms/powernv/pci-p5ioc2.o
  CC      arch/powerpc/platforms/pseries/kexec.o
  CC      arch/powerpc/platforms/powernv/pci-ioda.o
  AS      arch/powerpc/kernel/misc_64.o
  CC      arch/powerpc/platforms/powernv/eeh-powernv.o
  CC      arch/powerpc/platforms/powernv/opal-xscom.o
  CC      arch/powerpc/platforms/powernv/opal-tracepoints.o
  CC      arch/powerpc/kernel/of_platform.o
  CC      arch/powerpc/platforms/pseries/pseries_energy.o
  CC      arch/powerpc/kernel/prom_parse.o
  CC      arch/powerpc/kernel/setup_64.o
  CC      arch/powerpc/kernel/sys_ppc32.o
  CC      arch/powerpc/kernel/signal_64.o
  CC      arch/powerpc/platforms/pseries/hotplug-cpu.o
  CC      arch/powerpc/kernel/ptrace32.o
  CC      arch/powerpc/kernel/paca.o
  CC      arch/powerpc/platforms/pseries/hvconsole.o
  CC      arch/powerpc/platforms/pseries/cmm.o
  CC      arch/powerpc/kernel/nvram_64.o
  CC      arch/powerpc/kernel/firmware.o
  CC      arch/powerpc/platforms/pseries/dtl.o
  CC      arch/powerpc/kernel/hw_breakpoint.o
  AS      arch/powerpc/kernel/cpu_setup_ppc970.o
  CC      arch/powerpc/platforms/pseries/io_event_irq.o
  CC      arch/powerpc/platforms/pseries/lparcfg.o
  CC      arch/powerpc/platforms/pseries/suspend.o
  CC [M]  arch/powerpc/platforms/pseries/scanlog.o
  CC [M]  arch/powerpc/platforms/pseries/hvcserver.o
  AS      arch/powerpc/kernel/cpu_setup_pa6t.o
  AS      arch/powerpc/kernel/cpu_setup_power.o
  CC      arch/powerpc/kernel/mce.o
  CC      arch/powerpc/kernel/mce_power.o
  LD      arch/powerpc/platforms/powernv/built-in.o
  CC      arch/powerpc/kernel/vecemu.o
  LDS     arch/powerpc/kernel/vdso64/vdso64.lds
  VDSO64A arch/powerpc/kernel/vdso64/sigtramp.o
  VDSO64A arch/powerpc/kernel/vdso64/gettimeofday.o
  VDSO64A arch/powerpc/kernel/vdso64/datapage.o
  VDSO64A arch/powerpc/kernel/vdso64/cacheflush.o
  AS      arch/powerpc/kernel/idle_power7.o
  VDSO64A arch/powerpc/kernel/vdso64/note.o
  CC      arch/powerpc/kernel/proc_powerpc.o
  VDSO64A arch/powerpc/kernel/vdso64/getcpu.o
  VDSO64L arch/powerpc/kernel/vdso64/vdso64.so.dbg
  OBJCOPY arch/powerpc/kernel/vdso64/vdso64.so
  AS      arch/powerpc/kernel/vdso64/vdso64_wrapper.o
  CC      arch/powerpc/kernel/rtas.o
  LD      arch/powerpc/kernel/vdso64/built-in.o
  CC      arch/powerpc/kernel/rtas-rtc.o
  LD      arch/powerpc/platforms/pseries/built-in.o
  CC      arch/powerpc/kernel/rtas_pci.o
  LD      arch/powerpc/platforms/built-in.o
  CC      arch/powerpc/kernel/rtasd.o
  CC      arch/powerpc/kernel/rtas-proc.o
  CC      arch/powerpc/kernel/vio.o
  CC      arch/powerpc/kernel/ibmebus.o
  CC      arch/powerpc/kernel/eeh.o
  CC      arch/powerpc/kernel/eeh_pe.o
  CC      arch/powerpc/kernel/eeh_dev.o
  CC      arch/powerpc/kernel/eeh_cache.o
  CC      arch/powerpc/kernel/eeh_driver.o
  CC      arch/powerpc/kernel/eeh_event.o
  CC      arch/powerpc/kernel/eeh_sysfs.o
  CC      arch/powerpc/kernel/crash_dump.o
  CC      arch/powerpc/kernel/module.o
  CC      arch/powerpc/kernel/module_64.o
  CC      arch/powerpc/kernel/dbell.o
  CC      arch/powerpc/kernel/jump_label.o
  CC      arch/powerpc/kernel/dma-iommu.o
  CC      arch/powerpc/kernel/iommu.o
  CC      arch/powerpc/kernel/ppc_ksyms.o
  CC      arch/powerpc/kernel/btext.o
  CC      arch/powerpc/kernel/smp.o
  CC      arch/powerpc/kernel/kprobes.o
  CC      arch/powerpc/kernel/legacy_serial.o
  CC      arch/powerpc/kernel/udbg_16550.o
  CC      arch/powerpc/kernel/stacktrace.o
  CC      arch/powerpc/kernel/pci_64.o
  CC      arch/powerpc/kernel/pci_dn.o
  CC      arch/powerpc/kernel/pci-hotplug.o
  CC      arch/powerpc/kernel/isa-bridge.o
  CC      arch/powerpc/kernel/pci-common.o
  CC      arch/powerpc/kernel/pci_of_scan.o
  CC      arch/powerpc/kernel/msi.o
  CC      arch/powerpc/kernel/machine_kexec.o
  CC      arch/powerpc/kernel/crash.o
  CC      arch/powerpc/kernel/machine_kexec_64.o
  CC      arch/powerpc/kernel/trace_clock.o
  AS      arch/powerpc/kernel/reloc_64.o
  AS      arch/powerpc/kernel/tm.o
  AS      arch/powerpc/kernel/ppc_save_regs.o
  CC      arch/powerpc/kernel/prom_init.o
  AS      arch/powerpc/kernel/head_64.o
  LDS     arch/powerpc/kernel/vmlinux.lds
  AS      arch/powerpc/kernel/fpu.o
  AS      arch/powerpc/kernel/vector.o
  AS      arch/powerpc/kernel/entry_64.o
  CC [M]  arch/powerpc/kernel/rtas_flash.o
  CALL    /home/kisskb/slave/src/arch/powerpc/kernel/systbl_chk.sh
  AS      arch/powerpc/kernel/systbl.o
  CALL    /home/kisskb/slave/src/arch/powerpc/kernel/prom_init_check.sh
  LD      arch/powerpc/kernel/built-in.o
make[1]: Leaving directory '/home/kisskb/slave/build/mpe-0day_ppc64le_defconfig+NO_KVM_ppc64le'
Makefile:146: recipe for target 'sub-make' failed
make: *** [sub-make] Error 2
Command 'make -j 8 ARCH=powerpc O=/home/kisskb/slave/build/mpe-0day_ppc64le_defconfig+NO_KVM_ppc64le CROSS_COMPILE=/opt/cross/gcc-5.2.0-nolibc/powerpc64le-linux/bin/powerpc64le-linux-  ' returned non-zero exit status 2
# rm -rf /home/kisskb/slave/build/mpe-0day_ppc64le_defconfig+NO_KVM_ppc64le
# Build took: 0:00:24.516846