linux-toradex.git/tools/arch/arm64, branch v5.10-rc2

tools headers kvm: Sync kvm headers with the kernel sources

2020-02-12T15:41:20+00:00

To pick up the changes from:

  290a6bb06de9 ("arm64: KVM: Add UAPI notes for swapped registers")

No tools changes are caused by this.

This addresses these tools/perf build warnings:

Cc: Adrian Hunter 
Cc: Andrew Jones 
Cc: Jiri Olsa 
Cc: Marc Zyngier 
Cc: Namhyung Kim 
Signed-off-by: Arnaldo Carvalho de Melo

tools headers UAPI: Sync copy of arm64's asm/unistd.h with the kernel sources

2020-02-11T19:41:50+00:00

To get the changes in:

  3e3c8ca5a351 ("arm64: Move __ARCH_WANT_SYS_CLONE3 definition to uapi headers")

Silencing this tools/perf/ build warning:

  Warning: Kernel ABI header at 'tools/arch/arm64/include/uapi/asm/unistd.h' differs from latest version at 'arch/arm64/include/uapi/asm/unistd.h'
  diff -u tools/arch/arm64/include/uapi/asm/unistd.h arch/arm64/include/uapi/asm/unistd.h

Which will probably end up enabling the use of "clone3" in 'perf trace -e',
haven't checked the build with this change on an arm64 system.

Cc: Adrian Hunter 
Cc: Amanieu d'Antras 
Cc: Christian Brauner 
Cc: Jiri Olsa 
Cc: Namhyung Kim 
Signed-off-by: Arnaldo Carvalho de Melo

tools headers kvm: Sync kvm headers with the kernel sources

2019-12-02T15:54:13+00:00

To pick up the changes from:

  14edff88315a Merge tag 'kvmarm-5.5' of git://git.kernel.org/pub/scm/linux/kernel/git/kvmarm/kvmarm into HEAD
  a4b28f5c6798 Merge remote-tracking branch 'kvmarm/kvm-arm64/stolen-time' into kvmarm-master/next
  58772e9a3db7 ("KVM: arm64: Provide VCPU attributes for stolen time")
  da345174ceca ("KVM: arm/arm64: Allow user injection of external data aborts")
  c726200dd106 ("KVM: arm/arm64: Allow reporting non-ISV data aborts to userspace")
  efe5ddcae496 ("KVM: PPC: Book3S HV: XIVE: Allow userspace to set the # of VPs")

No tools changes are caused by this, as the only defines so far used
from these files are for syscall arg pretty printing are:

  $ grep KVM tools/perf/trace/beauty/*.sh
  tools/perf/trace/beauty/kvm_ioctl.sh:regex='^#[[:space:]]*define[[:space:]]+KVM_(\w+)[[:space:]]+_IO[RW]*\([[:space:]]*KVMIO[[:space:]]*,[[:space:]]*(0x[[:xdigit:]]+).*'
  $

Some are also include by:

  tools/perf/arch/x86/util/kvm-stat.c
  tools/perf/arch/powerpc/util/kvm-stat.c

This addresses these tools/perf build warnings:

  Warning: Kernel ABI header at 'tools/include/uapi/linux/kvm.h' differs from latest version at 'include/uapi/linux/kvm.h'
  diff -u tools/include/uapi/linux/kvm.h include/uapi/linux/kvm.h
  Warning: Kernel ABI header at 'tools/arch/powerpc/include/uapi/asm/kvm.h' differs from latest version at 'arch/powerpc/include/uapi/asm/kvm.h'
  diff -u tools/arch/powerpc/include/uapi/asm/kvm.h arch/powerpc/include/uapi/asm/kvm.h
  Warning: Kernel ABI header at 'tools/arch/arm/include/uapi/asm/kvm.h' differs from latest version at 'arch/arm/include/uapi/asm/kvm.h'
  diff -u tools/arch/arm/include/uapi/asm/kvm.h arch/arm/include/uapi/asm/kvm.h
  Warning: Kernel ABI header at 'tools/arch/arm64/include/uapi/asm/kvm.h' differs from latest version at 'arch/arm64/include/uapi/asm/kvm.h'
  diff -u tools/arch/arm64/include/uapi/asm/kvm.h arch/arm64/include/uapi/asm/kvm.h

Cc: Adrian Hunter 
Cc: Christoffer Dall 
Cc: Fabiano Rosas 
Cc: Greg Kurz 
Cc: Jiri Olsa 
Cc: Marc Zyngier 
Cc: Namhyung Kim 
Cc: Paul Mackerras 
Cc: Steven Price 
Link: https://lkml.kernel.org/n/tip-qrjdudhq25mk5bfnhveofbm4@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo

tools headers kvm: Sync kvm headers with the kernel sources

2019-09-30T20:29:30+00:00

To pick the changes in:

  200824f55eef ("KVM: s390: Disallow invalid bits in kvm_valid_regs and kvm_dirty_regs")
  4a53d99dd0c2 ("KVM: VMX: Introduce exit reason for receiving INIT signal on guest-mode")
  7396d337cfad ("KVM: x86: Return to userspace with internal error on unexpected exit reason")
  92f35b751c71 ("KVM: arm/arm64: vgic: Allow more than 256 vcpus for KVM_IRQ_LINE")

None of them trigger any changes in tooling, this time this is just to silence
these perf build warnings:

  Warning: Kernel ABI header at 'tools/include/uapi/linux/kvm.h' differs from latest version at 'include/uapi/linux/kvm.h'
  diff -u tools/include/uapi/linux/kvm.h include/uapi/linux/kvm.h
  Warning: Kernel ABI header at 'tools/arch/x86/include/uapi/asm/vmx.h' differs from latest version at 'arch/x86/include/uapi/asm/vmx.h'
  diff -u tools/arch/x86/include/uapi/asm/vmx.h arch/x86/include/uapi/asm/vmx.h
  Warning: Kernel ABI header at 'tools/arch/s390/include/uapi/asm/kvm.h' differs from latest version at 'arch/s390/include/uapi/asm/kvm.h'
  diff -u tools/arch/s390/include/uapi/asm/kvm.h arch/s390/include/uapi/asm/kvm.h
  Warning: Kernel ABI header at 'tools/arch/arm/include/uapi/asm/kvm.h' differs from latest version at 'arch/arm/include/uapi/asm/kvm.h'
  diff -u tools/arch/arm/include/uapi/asm/kvm.h arch/arm/include/uapi/asm/kvm.h
  Warning: Kernel ABI header at 'tools/arch/arm64/include/uapi/asm/kvm.h' differs from latest version at 'arch/arm64/include/uapi/asm/kvm.h'
  diff -u tools/arch/arm64/include/uapi/asm/kvm.h arch/arm64/include/uapi/asm/kvm.h

Cc: Adrian Hunter 
Cc: Janosch Frank 
Cc: Jiri Olsa 
Cc: Liran Alon 
Cc: Marc Zyngier 
Cc: Namhyung Kim 
Cc: Paolo Bonzini 
Cc: Thomas Huth 
Link: https://lkml.kernel.org/n/tip-akuugvvjxte26kzv23zp5d2z@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo

tools headers UAPI: Update tools's copy of kvm.h headers

2019-07-26T15:43:23+00:00

Picking the changes from:

  66bb8a065f5a ("KVM: x86: PMU Event Filter")
  f087a02941fe ("KVM: nVMX: Stash L1's CR3 in vmcs01.GUEST_CR3 on nested entry w/o EPT")
  99adb567632b ("KVM: arm/arm64: Add save/restore support for firmware workaround state")

Silencing this perf build warning:

  Warning: Kernel ABI header at 'tools/arch/arm/include/uapi/asm/kvm.h' differs from latest version at 'arch/arm/include/uapi/asm/kvm.h'
  diff -u tools/arch/arm/include/uapi/asm/kvm.h arch/arm/include/uapi/asm/kvm.h
  Warning: Kernel ABI header at 'tools/arch/arm64/include/uapi/asm/kvm.h' differs from latest version at 'arch/arm64/include/uapi/asm/kvm.h'
  diff -u tools/arch/arm64/include/uapi/asm/kvm.h arch/arm64/include/uapi/asm/kvm.h
  Warning: Kernel ABI header at 'tools/arch/x86/include/uapi/asm/vmx.h' differs from latest version at 'arch/x86/include/uapi/asm/vmx.h'
  diff -u tools/arch/x86/include/uapi/asm/vmx.h arch/x86/include/uapi/asm/vmx.h
  Warning: Kernel ABI header at 'tools/arch/x86/include/uapi/asm/kvm.h' differs from latest version at 'arch/x86/include/uapi/asm/kvm.h'
  diff -u tools/arch/x86/include/uapi/asm/kvm.h arch/x86/include/uapi/asm/kvm.h
  Warning: Kernel ABI header at 'tools/include/uapi/linux/kvm.h' differs from latest version at 'include/uapi/linux/kvm.h'
  diff -u tools/include/uapi/linux/kvm.h include/uapi/linux/kvm.h

Now 'perf trace' and other code that might use the tools/perf/trace/beauty autogenerated
tables will be able to translate this new ioctl code into a string:

  $ tools/perf/trace/beauty/kvm_ioctl.sh > before
  $
  $ cp include/uapi/linux/kvm.h tools/include/uapi/linux/kvm.h
  $ tools/perf/trace/beauty/kvm_ioctl.sh > after
  $ diff -u before after
  --- before 2019-07-26 12:32:47.959220236 -0300
  +++ after 2019-07-26 12:33:05.766464871 -0300
  @@ -79,6 +79,7 @@
        [0xac] = "SET_ONE_REG",
        [0xad] = "KVMCLOCK_CTRL",
        [0xb0] = "GET_REG_LIST",
  +     [0xb2] = "SET_PMU_EVENT_FILTER",
        [0xb7] = "SMI",
        [0xba] = "MEMORY_ENCRYPT_OP",
        [0xbb] = "MEMORY_ENCRYPT_REG_REGION",
  $

Cc: Adrian Hunter 
Cc: Andre Przywara 
Cc: Brendan Gregg 
Cc: Eric Hankland 
Cc: Jiri Olsa 
Cc: Luis Cláudio Gonçalves 
Cc: Marc Zyngier 
Cc: Namhyung Kim 
Cc: Paolo Bonzini 
Cc: Sean Christopherson 
Link: https://lkml.kernel.org/n/tip-py1gcmt6rboehlwg6zvagfg2@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo

tools arch kvm: Sync kvm headers with the kernel sources

2019-07-06T17:26:40+00:00

To pick up the changes from:

  41040cf7c5f0 ("arm64/sve: Fix missing SVE/FPSIMD endianness conversions")
  6ca00dfafda7 ("KVM: x86: Modify struct kvm_nested_state to have explicit fields for data")

None entail changes in tooling.

This silences these tools/perf build warnings:

  Warning: Kernel ABI header at 'tools/arch/x86/include/uapi/asm/kvm.h' differs from latest version at 'arch/x86/include/uapi/asm/kvm.h'
  diff -u tools/arch/x86/include/uapi/asm/kvm.h arch/x86/include/uapi/asm/kvm.h
  Warning: Kernel ABI header at 'tools/arch/arm64/include/uapi/asm/kvm.h' differs from latest version at 'arch/arm64/include/uapi/asm/kvm.h'
  diff -u tools/arch/arm64/include/uapi/asm/kvm.h arch/arm64/include/uapi/asm/kvm.h

Cc: Adrian Hunter 
Cc: Dave Martin 
Cc: Jiri Olsa 
Cc: Liran Alon 
Cc: Namhyung Kim 
Cc: Paolo Bonzini 
Cc: Will Deacon 
Link: https://lkml.kernel.org/n/tip-1cdbq5ulr4d6cx3iv2ye5wdv@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo

tools headers UAPI: Sync kvm.h headers with the kernel sources

2019-05-28T12:52:23+00:00

  dd53f6102c30 ("Merge tag 'kvmarm-for-v5.2' of git://git.kernel.org/pub/scm/linux/kernel/git/kvmarm/kvmarm into HEAD")
  59c5c58c5b93 ("Merge tag 'kvm-ppc-next-5.2-2' of git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc into HEAD")
  d7547c55cbe7 ("KVM: Introduce KVM_CAP_MANUAL_DIRTY_LOG_PROTECT2")
  6520ca64cde7 ("KVM: PPC: Book3S HV: XIVE: Add a mapping for the source ESB pages")
  39e9af3de5ca ("KVM: PPC: Book3S HV: XIVE: Add a TIMA mapping")
  e4945b9da52b ("KVM: PPC: Book3S HV: XIVE: Add get/set accessors for the VP XIVE state")
  e6714bd1671d ("KVM: PPC: Book3S HV: XIVE: Add a control to dirty the XIVE EQ pages")
  7b46b6169ab8 ("KVM: PPC: Book3S HV: XIVE: Add a control to sync the sources")
  5ca806474859 ("KVM: PPC: Book3S HV: XIVE: Add a global reset control")
  13ce3297c576 ("KVM: PPC: Book3S HV: XIVE: Add controls for the EQ configuration")
  e8676ce50e22 ("KVM: PPC: Book3S HV: XIVE: Add a control to configure a source")
  4131f83c3d64 ("KVM: PPC: Book3S HV: XIVE: add a control to initialize a source")
  eacc56bb9de3 ("KVM: PPC: Book3S HV: XIVE: Introduce a new capability KVM_CAP_PPC_IRQ_XIVE")
  90c73795afa2 ("KVM: PPC: Book3S HV: Add a new KVM device for the XIVE native exploitation mode")
  4f45b90e1c03 ("KVM: s390: add deflate conversion facilty to cpu model")
  a243c16d18be ("KVM: arm64: Add capability to advertise ptrauth for guest")
  a22fa321d13b ("KVM: arm64: Add userspace flag to enable pointer authentication")
  4bd774e57b29 ("KVM: arm64/sve: Simplify KVM_REG_ARM64_SVE_VLS array sizing")
  8ae6efdde451 ("KVM: arm64/sve: Clean up UAPI register ID definitions")
  173aec2d5a9f ("KVM: s390: add enhanced sort facilty to cpu model")
  555f3d03e7fb ("KVM: arm64: Add a capability to advertise SVE support")
  9033bba4b535 ("KVM: arm64/sve: Add pseudo-register for the guest's vector lengths")
  7dd32a0d0103 ("KVM: arm/arm64: Add KVM_ARM_VCPU_FINALIZE ioctl")
  e1c9c98345b3 ("KVM: arm64/sve: Add SVE support to register access ioctl interface")
  2b953ea34812 ("KVM: Allow 2048-bit register access via ioctl interface")

None entails changes in tooling, the closest to that were some new arch
specific ioctls, that are still not handled by the tools/perf/trace/beauty/
library, that needs to create per-arch tables to convert ioctl cmd->string (and
back).

From a quick look the arch specific kvm-stat.c files at:

  $ ls -1 tools/perf/arch/*/util/kvm-stat.c
  tools/perf/arch/powerpc/util/kvm-stat.c
  tools/perf/arch/s390/util/kvm-stat.c
  tools/perf/arch/x86/util/kvm-stat.c
  $

Are not affected.

This silences these perf building warnings:

  Warning: Kernel ABI header at 'tools/include/uapi/linux/kvm.h' differs from latest version at 'include/uapi/linux/kvm.h'
  diff -u tools/include/uapi/linux/kvm.h include/uapi/linux/kvm.h
  Warning: Kernel ABI header at 'tools/arch/powerpc/include/uapi/asm/kvm.h' differs from latest version at 'arch/powerpc/include/uapi/asm/kvm.h'
  diff -u tools/arch/powerpc/include/uapi/asm/kvm.h arch/powerpc/include/uapi/asm/kvm.h
  Warning: Kernel ABI header at 'tools/arch/s390/include/uapi/asm/kvm.h' differs from latest version at 'arch/s390/include/uapi/asm/kvm.h'
  diff -u tools/arch/s390/include/uapi/asm/kvm.h arch/s390/include/uapi/asm/kvm.h
  Warning: Kernel ABI header at 'tools/arch/arm64/include/uapi/asm/kvm.h' differs from latest version at 'arch/arm64/include/uapi/asm/kvm.h'
  diff -u tools/arch/arm64/include/uapi/asm/kvm.h arch/arm64/include/uapi/asm/kvm.h

Cc: Adrian Hunter 
Cc: Amit Daniel Kachhap 
Cc: Brendan Gregg 
Cc: Cédric Le Goater 
Cc: Christian Borntraeger 
Cc: Dave Martin 
Cc: Jiri Olsa 
Cc: Luis Cláudio Gonçalves 
Cc: Marc Zyngier 
Cc: Namhyung Kim 
Cc: Paolo Bonzini 
Cc: Paul Mackerras 
Cc: Peter Xu 
Link: https://lkml.kernel.org/n/tip-3msmqjenlmb7eygcdnmlqaq1@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo

tools: add smp_* barrier variants to include infrastructure

2019-04-11T21:45:50+00:00

Add the definition for smp_rmb(), smp_wmb(), and smp_mb() to the
tools include infrastructure: this patch adds the implementation
for x86-64 and arm64, and have it fall back as currently is for
other archs which do not have it implemented at this point. The
x86-64 one uses lock + add combination for smp_mb() with address
below red zone.

This is on top of 09d62154f613 ("tools, perf: add and use optimized
ring_buffer_{read_head, write_tail} helpers"), which didn't touch
smp_* barrier implementations. Magnus recently rightfully reported
however that the latter on x86-64 still wrongly falls back to sfence,
lfence and mfence respectively, thus fix that for applications under
tools making use of these to avoid such ugly surprises. The main
header under tools (include/asm/barrier.h) will in that case not
select the fallback implementation.

Reported-by: Magnus Karlsson 
Signed-off-by: Daniel Borkmann 
Cc: Arnaldo Carvalho de Melo 
Signed-off-by: Alexei Starovoitov

tools headers uapi: Sync copy of asm-generic/unistd.h with the kernel sources

2019-03-11T19:13:04+00:00

To get the changes in:

  c8ce48f06503 ("asm-generic: Make time32 syscall numbers optional")

Silencing these tools/perf build warnings:

  Warning: Kernel ABI header at 'tools/arch/arm64/include/uapi/asm/unistd.h' differs from latest version at 'arch/arm64/include/uapi/asm/unistd.h'
  diff -u tools/arch/arm64/include/uapi/asm/unistd.h arch/arm64/include/uapi/asm/unistd.h
  Warning: Kernel ABI header at 'tools/include/uapi/asm-generic/unistd.h' differs from latest version at 'include/uapi/asm-generic/unistd.h'
  diff -u tools/include/uapi/asm-generic/unistd.h include/uapi/asm-generic/unistd.h

Test built it under the ubuntu:14.04.4-x-linaro-arm64 cross build
environment and looked at the syscall table at
/tmp/build/perf/arch/arm64/include/generated/asm/syscalls.c, looks ok.

Cc: Adrian Hunter 
Cc: Alexander Shishkin 
Cc: Arnd Bergmann 
Cc: Hendrik Brueckner 
Cc: Jiri Olsa 
Cc: Kim Phillips 
Cc: Michael Ellerman 
Cc: Namhyung Kim 
Cc: Peter Zijlstra 
Cc: Ravi Bangoria 
Cc: Thomas Richter 
Link: https://lkml.kernel.org/n/tip-e4w7ngsmkq48bd6st52ty2kb@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo

tools headers barrier: Fix arm64 tools build failure wrt smp_load_{acquire,release}

2018-11-01T13:07:43+00:00

Cheers for reporting this. I managed to reproduce the build failure with
gcc version 6.3.0 20170516 (Debian 6.3.0-18+deb9u1).

The code in question is the arm64 versions of smp_load_acquire() and
smp_store_release(). Unlike other architectures, these are not built
around READ_ONCE() and WRITE_ONCE() since we have instructions we can
use instead of fences. Bringing our macros up-to-date with those (i.e.
tweaking the union initialisation and using the special "uXX_alias_t"
types) appears to fix the issue for me.

Committer notes:

Testing it in the systems previously failing:

  # time dm android-ndk:r12b-arm \
         android-ndk:r15c-arm \
         debian:experimental-x-arm64 \
         ubuntu:14.04.4-x-linaro-arm64 \
         ubuntu:16.04-x-arm \
         ubuntu:16.04-x-arm64 \
         ubuntu:18.04-x-arm \
         ubuntu:18.04-x-arm64
    1 android-ndk:r12b-arm          : Ok   arm-linux-androideabi-gcc (GCC) 4.9.x 20150123 (prerelease)
    2 android-ndk:r15c-arm          : Ok   arm-linux-androideabi-gcc (GCC) 4.9.x 20150123 (prerelease)
    3 debian:experimental-x-arm64   : Ok   aarch64-linux-gnu-gcc (Debian 8.2.0-7) 8.2.0
    4 ubuntu:14.04.4-x-linaro-arm64 : Ok   aarch64-linux-gnu-gcc (Linaro GCC 5.5-2017.10) 5.5.0
    5 ubuntu:16.04-x-arm            : Ok   arm-linux-gnueabihf-gcc (Ubuntu/Linaro 5.4.0-6ubuntu1~16.04.9) 5.4.0 20160609
    6 ubuntu:16.04-x-arm64          : Ok   aarch64-linux-gnu-gcc (Ubuntu/Linaro 5.4.0-6ubuntu1~16.04.9) 5.4.0 20160609
    7 ubuntu:18.04-x-arm            : Ok   arm-linux-gnueabihf-gcc (Ubuntu/Linaro 7.3.0-27ubuntu1~18.04) 7.3.0
    8 ubuntu:18.04-x-arm64          : Ok   aarch64-linux-gnu-gcc (Ubuntu/Linaro 7.3.0-27ubuntu1~18.04) 7.3.0

Reported-by: Arnaldo Carvalho de Melo 
Signed-off-by: Will Deacon 
Tested-by: Arnaldo Carvalho de Melo 
Tested-by: Daniel Borkmann 
Cc: Peter Zijlstra 
Link: http://lkml.kernel.org/r/20181031174408.GA27871@arm.com
Signed-off-by: Arnaldo Carvalho de Melo