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053cab97b712a6374b848f50e5459de625afd4b6
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commit 053cab97b712a6374b848f50e5459de625afd4b6
Author: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Date:   Wed Apr 5 17:54:56 2017 +1000

    powerpc/kvm: Native usage of the XIVE interrupt controller
    
    This patch makes KVM capable of using the XIVE interrupt controller
    to provide the standard PAPR "XICS" style hypercalls. It is necessary
    for proper operations when the host uses XIVE natively.
    
    This has been lightly tested on an actual system, including PCI
    pass-through with a TG3 device.
    
    Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
    [mpe: Cleanup pr_xxx(), unsplit pr_xxx() strings, etc., fix build
     failures by adding KVM_XIVE which depends on KVM_XICS and XIVE, and
     adding empty stubs for the kvm_xive_xxx() routines]
    Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
# < /opt/cross/kisskb/gcc-4.6.3-nolibc/powerpc-linux/bin/powerpc-linux-gcc --version
# < git log --format=%s --max-count=1 053cab97b712a6374b848f50e5459de625afd4b6
# < make -j 10 ARCH=powerpc O=/home/kisskb/slave/build/powerpc-next_powerpc-randconfig_powerpc CROSS_COMPILE=/opt/cross/kisskb/gcc-4.6.3-nolibc/powerpc-linux/bin/powerpc-linux-  randconfig
KCONFIG_SEED=0xE6D3AA77
# 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=y
# Added to kconfig CONFIG_PPC64=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_CC_STACKPROTECTOR_STRONG=n
# Added to kconfig CONFIG_GCC_PLUGINS=n
# Added to kconfig 
# yes \n | make -j 10 ARCH=powerpc O=/home/kisskb/slave/build/powerpc-next_powerpc-randconfig_powerpc CROSS_COMPILE=/opt/cross/kisskb/gcc-4.6.3-nolibc/powerpc-linux/bin/powerpc-linux-  oldconfig
yes: standard output: Broken pipe
yes: write error
# make -j 10 ARCH=powerpc O=/home/kisskb/slave/build/powerpc-next_powerpc-randconfig_powerpc CROSS_COMPILE=/opt/cross/kisskb/gcc-4.6.3-nolibc/powerpc-linux/bin/powerpc-linux-  
make[1]: Entering directory '/home/kisskb/slave/build/powerpc-next_powerpc-randconfig_powerpc'
  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/export.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/rwsem.h
  WRAP    arch/powerpc/include/generated/asm/mcs_spinlock.h
  WRAP    arch/powerpc/include/generated/asm/vtime.h
  WRAP    arch/powerpc/include/generated/asm/preempt.h
  CHK     include/generated/uapi/linux/version.h
  UPD     include/generated/uapi/linux/version.h
  UPD     include/config/kernel.release
  HOSTCC  scripts/basic/bin2c
  Using /home/kisskb/slave/src as source for kernel
  CHK     include/generated/utsrelease.h
  UPD     include/generated/utsrelease.h
  HOSTCC  scripts/dtc/dtc.o
  HOSTCC  scripts/dtc/flattree.o
  HOSTCC  scripts/dtc/fstree.o
  HOSTCC  scripts/dtc/data.o
  CC      scripts/mod/empty.o
  HOSTCC  scripts/dtc/livetree.o
  HOSTCC  scripts/dtc/treesource.o
  HOSTCC  scripts/mod/mk_elfconfig
  CC      scripts/mod/devicetable-offsets.s
  HOSTCC  scripts/dtc/srcpos.o
  HOSTCC  scripts/dtc/checks.o
  MKELF   scripts/mod/elfconfig.h
  GEN     scripts/mod/devicetable-offsets.h
  SHIPPED scripts/dtc/dtc-lexer.lex.c
  HOSTCC  scripts/dtc/util.o
  SHIPPED scripts/dtc/dtc-parser.tab.h
  SHIPPED scripts/dtc/dtc-parser.tab.c
  HOSTCC  scripts/mod/modpost.o
  HOSTCC  scripts/mod/file2alias.o
  HOSTCC  scripts/mod/sumversion.o
  HOSTCC  scripts/dtc/dtc-lexer.lex.o
  HOSTCC  scripts/dtc/dtc-parser.tab.o
  HOSTCC  scripts/kallsyms
  HOSTCC  scripts/conmakehash
  HOSTCC  scripts/sortextable
  HOSTCC  scripts/asn1_compiler
  HOSTCC  scripts/extract-cert
  HOSTCC  scripts/insert-sys-cert
  CHK     include/generated/timeconst.h
  CC      kernel/bounds.s
  UPD     include/generated/timeconst.h
  CHK     include/generated/bounds.h
  UPD     include/generated/bounds.h
  CC      arch/powerpc/kernel/asm-offsets.s
  HOSTLD  scripts/dtc/dtc
  CHK     include/generated/asm-offsets.h
  UPD     include/generated/asm-offsets.h
  CALL    /home/kisskb/slave/src/scripts/checksyscalls.sh
  HOSTLD  scripts/mod/modpost
  CHK     include/generated/compile.h
  AR      usr/built-in.o
  CC      init/main.o
  CC      init/do_mounts.o
  CC      init/do_mounts_md.o
  CC      init/noinitramfs.o
  CC      init/init_task.o
  UPD     include/generated/compile.h
  CC      arch/powerpc/mm/fault.o
  AS      arch/powerpc/lib/string.o
  CC      arch/powerpc/sysdev/mpic.o
  CC      arch/powerpc/platforms/powermac/pic.o
  CC      arch/powerpc/lib/alloc.o
  CC      arch/powerpc/kernel/cputable.o
  AS      arch/powerpc/lib/crtsavres.o
  CC      arch/powerpc/lib/code-patching.o
  CC      arch/powerpc/lib/feature-fixups.o
  CC      arch/powerpc/kernel/ptrace.o
  CC      arch/powerpc/platforms/powermac/setup.o
  CC      arch/powerpc/platforms/powernv/setup.o
  AS      arch/powerpc/platforms/powernv/opal-wrappers.o
  CC      arch/powerpc/mm/mem.o
  CC      arch/powerpc/mm/pgtable.o
  CC      arch/powerpc/mm/mmap.o
  AS      arch/powerpc/lib/checksum_64.o
  CC      arch/powerpc/lib/checksum_wrappers.o
  CC      arch/powerpc/lib/sstep.o
  CC      arch/powerpc/platforms/powermac/time.o
  CC      init/version.o
  CC      arch/powerpc/platforms/powernv/opal.o
  CC      arch/powerpc/platforms/powernv/opal-async.o
  CC      arch/powerpc/platforms/powernv/idle.o
  CC      arch/powerpc/mm/init_64.o
  AR      init/mounts.o
  CC      arch/powerpc/platforms/powermac/feature.o
  AR      init/built-in.o
  CC      arch/powerpc/platforms/powermac/pci.o
  CC      arch/powerpc/mm/pgtable_64.o
  CC      arch/powerpc/platforms/powernv/opal-rtc.o
  CC      arch/powerpc/sysdev/mpic_msi.o
  CC      arch/powerpc/platforms/pseries/lpar.o
  CC      arch/powerpc/sysdev/mpic_u3msi.o
  CC      arch/powerpc/sysdev/msi_bitmap.o
  CC      arch/powerpc/sysdev/dart_iommu.o
  CC      arch/powerpc/kernel/syscalls.o
  CC      arch/powerpc/platforms/powernv/opal-nvram.o
  AS      arch/powerpc/platforms/powermac/sleep.o
  CC      arch/powerpc/platforms/powermac/low_i2c.o
  AS      arch/powerpc/platforms/powermac/cache.o
  CC      arch/powerpc/mm/init-common.o
  CC      arch/powerpc/mm/pgtable-hash64.o
  AS      arch/powerpc/lib/ldstfp.o
  AS      arch/powerpc/lib/copypage_64.o
  AS      arch/powerpc/lib/copyuser_64.o
  CC      arch/powerpc/lib/usercopy_64.o
  AS      arch/powerpc/lib/mem_64.o
  AS      arch/powerpc/lib/hweight_64.o
  CC      arch/powerpc/kernel/irq.o
  CC      arch/powerpc/sysdev/i8259.o
  CC      arch/powerpc/platforms/powermac/pfunc_core.o
  CC      arch/powerpc/platforms/powermac/pfunc_base.o
  CC      arch/powerpc/platforms/powernv/opal-lpc.o
  AS      arch/powerpc/lib/copyuser_power7.o
  AS      arch/powerpc/lib/string_64.o
  CC      arch/powerpc/mm/hash_utils_64.o
  AS      arch/powerpc/lib/copypage_power7.o
  AS      arch/powerpc/platforms/pseries/hvCall.o
  AS      arch/powerpc/lib/memcpy_power7.o
  CC      arch/powerpc/platforms/pseries/nvram.o
  AS      arch/powerpc/lib/memcpy_64.o
  AS      arch/powerpc/lib/memcmp_64.o
  AR      arch/powerpc/lib/built-in.o
  CC      arch/powerpc/platforms/pseries/reconfig.o
  CC      arch/powerpc/platforms/pseries/of_helpers.o
  CC      arch/powerpc/sysdev/scom.o
  CC      arch/powerpc/sysdev/xics/xics-common.o
  CC      arch/powerpc/platforms/powernv/opal-flash.o
  CC      arch/powerpc/platforms/powernv/rng.o
  CC      arch/powerpc/platforms/pseries/setup.o
  CC      arch/powerpc/platforms/powermac/udbg_scc.o
  CC      arch/powerpc/kernel/align.o
  CC      arch/powerpc/kernel/signal_32.o
  CC      arch/powerpc/kernel/pmc.o
  AS      arch/powerpc/mm/slb_low.o
  CC      arch/powerpc/kernel/vdso.o
  CC      arch/powerpc/mm/slb.o
  CC      arch/powerpc/mm/hash_native_64.o
  CC      arch/powerpc/sysdev/xics/icp-native.o
  CC      arch/powerpc/platforms/powernv/opal-elog.o
  CC      arch/powerpc/sysdev/xics/icp-hv.o
  CC      arch/powerpc/platforms/powermac/udbg_adb.o
  CC      arch/powerpc/mm/mmu_context_book3s64.o
  AR      arch/powerpc/math-emu/built-in.o
  CC      arch/powerpc/platforms/pseries/iommu.o
  CC      arch/powerpc/sysdev/xive/common.o
  AR      arch/powerpc/crypto/built-in.o
  AS [M]  arch/powerpc/crypto/sha1-powerpc-asm.o
  CC      arch/powerpc/sysdev/xics/ics-rtas.o
  CC [M]  arch/powerpc/crypto/sha1.o
  CC      arch/powerpc/platforms/powermac/nvram.o
  CC      arch/powerpc/kernel/process.o
  CC      arch/powerpc/platforms/powernv/opal-dump.o
  CC      arch/powerpc/sysdev/xics/ics-opal.o
  CC      arch/powerpc/mm/pgtable-book3s64.o
/home/kisskb/slave/src/arch/powerpc/sysdev/xive/common.c: In function 'xive_irq_domain_map':
/home/kisskb/slave/src/arch/powerpc/sysdev/xive/common.c:1105:35: error: 'xive_ipi_chip' undeclared (first use in this function)
/home/kisskb/slave/src/arch/powerpc/sysdev/xive/common.c:1105:35: note: each undeclared identifier is reported only once for each function it appears in
/home/kisskb/slave/src/arch/powerpc/sysdev/xive/common.c: In function 'xive_kexec_teardown_cpu':
/home/kisskb/slave/src/arch/powerpc/sysdev/xive/common.c:1357:2: error: implicit declaration of function 'xive_cleanup_cpu_ipi' [-Werror=implicit-function-declaration]
/home/kisskb/slave/src/arch/powerpc/sysdev/xive/common.c: At top level:
/home/kisskb/slave/src/arch/powerpc/sysdev/xive/common.c:67:12: warning: 'xive_ipi_irq' defined but not used [-Wunused-variable]
cc1: warning: unrecognized command line option "-Wno-maybe-uninitialized" [enabled by default]
cc1: warning: unrecognized command line option "-Wno-maybe-uninitialized" [enabled by default]
cc1: some warnings being treated as errors
/home/kisskb/slave/src/scripts/Makefile.build:294: recipe for target 'arch/powerpc/sysdev/xive/common.o' failed
make[3]: *** [arch/powerpc/sysdev/xive/common.o] Error 1
/home/kisskb/slave/src/scripts/Makefile.build:553: recipe for target 'arch/powerpc/sysdev/xive' failed
make[2]: *** [arch/powerpc/sysdev/xive] Error 2
make[2]: *** Waiting for unfinished jobs....
  CC      arch/powerpc/platforms/powernv/opal-sysparam.o
  CC      arch/powerpc/mm/pgtable-radix.o
  LD [M]  arch/powerpc/crypto/sha1-powerpc.o
  CC      arch/powerpc/sysdev/xics/icp-opal.o
  CC      arch/powerpc/platforms/pseries/event_sources.o
  CC      arch/powerpc/platforms/powernv/opal-sensor.o
  CC      arch/powerpc/mm/tlb-radix.o
  CC      arch/powerpc/platforms/pseries/ras.o
  CC      arch/powerpc/platforms/powernv/opal-msglog.o
  AR      arch/powerpc/platforms/powermac/built-in.o
  AR      arch/powerpc/net/built-in.o
  CC      arch/powerpc/platforms/pseries/firmware.o
  CC      arch/powerpc/mm/tlb_hash64.o
  AR      arch/powerpc/sysdev/xics/built-in.o
/home/kisskb/slave/src/Makefile:1002: 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/power.o
  CPP     arch/powerpc/kernel/systbl_chk.i
  CC      arch/powerpc/platforms/pseries/dlpar.o
  CC      arch/powerpc/platforms/pseries/mobility.o
  CC      arch/powerpc/platforms/pseries/rng.o
  CC      arch/powerpc/platforms/pseries/pci.o
  CC      arch/powerpc/platforms/powernv/opal-hmi.o
  CC      arch/powerpc/platforms/powernv/opal-power.o
  CC      arch/powerpc/kernel/idle.o
  CC      arch/powerpc/platforms/powernv/opal-irqchip.o
  CC      arch/powerpc/platforms/powernv/opal-kmsg.o
  CC      arch/powerpc/platforms/pseries/pci_dlpar.o
  CC      arch/powerpc/mm/hash64_4k.o
  CC      arch/powerpc/platforms/powernv/pci.o
  CC      arch/powerpc/kernel/signal.o
  CC      arch/powerpc/kernel/sysfs.o
  CC      arch/powerpc/kernel/cacheinfo.o
  CC      arch/powerpc/platforms/powernv/pci-ioda.o
  CC      arch/powerpc/platforms/pseries/eeh_pseries.o
  CC      arch/powerpc/mm/hugetlbpage.o
  CC      arch/powerpc/mm/copro_fault.o
  CC      arch/powerpc/kernel/time.o
  CC      arch/powerpc/kernel/prom.o
  CC      arch/powerpc/platforms/powernv/npu-dma.o
  CC      arch/powerpc/platforms/powernv/pci-cxl.o
  CC      arch/powerpc/kernel/traps.o
  AR      arch/powerpc/mm/built-in.o
  CC      arch/powerpc/platforms/pseries/msi.o
  CC      arch/powerpc/platforms/pseries/pseries_energy.o
  CC      arch/powerpc/platforms/pseries/io_event_irq.o
  CC      arch/powerpc/platforms/pseries/vio.o
  CC      arch/powerpc/platforms/powernv/eeh-powernv.o
  CC      arch/powerpc/platforms/pseries/suspend.o
  CC      arch/powerpc/platforms/powernv/opal-xscom.o
  CC      arch/powerpc/kernel/setup-common.o
  CC      arch/powerpc/kernel/udbg.o
  AS      arch/powerpc/kernel/misc.o
  CC      arch/powerpc/platforms/powernv/opal-tracepoints.o
  CC      arch/powerpc/kernel/io.o
  CC      arch/powerpc/kernel/dma.o
  AS      arch/powerpc/kernel/misc_64.o
  CC      arch/powerpc/kernel/of_platform.o
  CC      arch/powerpc/kernel/prom_parse.o
  AR      arch/powerpc/platforms/pseries/built-in.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/kernel/ptrace32.o
  CC      arch/powerpc/kernel/paca.o
  CC      arch/powerpc/kernel/nvram_64.o
  CC      arch/powerpc/kernel/firmware.o
  LDS     arch/powerpc/kernel/vdso32/vdso32.lds
  VDSO32A arch/powerpc/kernel/vdso32/sigtramp.o
  VDSO32A arch/powerpc/kernel/vdso32/gettimeofday.o
  LDS     arch/powerpc/kernel/vdso64/vdso64.lds
  VDSO32A arch/powerpc/kernel/vdso32/datapage.o
  AS      arch/powerpc/kernel/vdso64/sigtramp.o
  VDSO32A arch/powerpc/kernel/vdso32/cacheflush.o
  AS      arch/powerpc/kernel/vdso64/gettimeofday.o
  VDSO32A arch/powerpc/kernel/vdso32/note.o
  AS      arch/powerpc/kernel/vdso64/datapage.o
  AS      arch/powerpc/kernel/vdso64/cacheflush.o
  AS      arch/powerpc/kernel/vdso64/note.o
  VDSO32A arch/powerpc/kernel/vdso32/getcpu.o
  CC      arch/powerpc/kernel/hw_breakpoint.o
  AS      arch/powerpc/kernel/cpu_setup_ppc970.o
  AS      arch/powerpc/kernel/vdso64/getcpu.o
  AS      arch/powerpc/kernel/cpu_setup_pa6t.o
  VDSO32L arch/powerpc/kernel/vdso32/vdso32.so.dbg
  OBJCOPY arch/powerpc/kernel/vdso32/vdso32.so
  AS      arch/powerpc/kernel/cpu_setup_power.o
  AS      arch/powerpc/kernel/vdso32/vdso32_wrapper.o
  VDSO64L arch/powerpc/kernel/vdso64/vdso64.so.dbg
  CC      arch/powerpc/kernel/mce.o
  OBJCOPY arch/powerpc/kernel/vdso64/vdso64.so
  AS      arch/powerpc/kernel/vdso64/vdso64_wrapper.o
  CC      arch/powerpc/kernel/mce_power.o
  AR      arch/powerpc/kernel/vdso32/built-in.o
  AS      arch/powerpc/kernel/idle_power4.o
  AS      arch/powerpc/kernel/idle_book3s.o
  AR      arch/powerpc/kernel/vdso64/built-in.o
  CC      arch/powerpc/kernel/proc_powerpc.o
  CC      arch/powerpc/kernel/rtas.o
  AR      arch/powerpc/platforms/powernv/built-in.o
  CC      arch/powerpc/kernel/rtas-rtc.o
  AR      arch/powerpc/platforms/built-in.o
  CC      arch/powerpc/kernel/rtas_pci.o
  CC      arch/powerpc/kernel/rtasd.o
  CC      arch/powerpc/kernel/rtas-proc.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/smp-tbsync.o
  CC      arch/powerpc/kernel/module.o
  CC      arch/powerpc/kernel/module_64.o
  CC      arch/powerpc/kernel/dbell.o
  CC      arch/powerpc/kernel/dma-iommu.o
  CC      arch/powerpc/kernel/iommu.o
  CC      arch/powerpc/kernel/uprobes.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/ftrace.o
  CC      arch/powerpc/kernel/trace_clock.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/entry_64.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
  AR      arch/powerpc/kernel/built-in.o
make[1]: Leaving directory '/home/kisskb/slave/build/powerpc-next_powerpc-randconfig_powerpc'
Makefile:152: recipe for target 'sub-make' failed
make: *** [sub-make] Error 2
Command 'make -j 10 ARCH=powerpc O=/home/kisskb/slave/build/powerpc-next_powerpc-randconfig_powerpc CROSS_COMPILE=/opt/cross/kisskb/gcc-4.6.3-nolibc/powerpc-linux/bin/powerpc-linux-  ' returned non-zero exit status 2
# rm -rf /home/kisskb/slave/build/powerpc-next_powerpc-randconfig_powerpc
# Build took: 0:00:17.813064