linux-stable.git/tools/include/uapi/linux/vhost.h, branch linux-5.0.y

tools include uapi: Sync linux/vhost.h with the kernel sources

2019-01-08T17:09:33+00:00

To get the changes in:

  4b86713236e4 ("vhost: split structs into a separate header file")

Silencing this perf build warning:

  Warning: Kernel ABI header at 'tools/include/uapi/linux/vhost.h' differs from latest version at 'include/uapi/linux/vhost.h'
  diff -u tools/include/uapi/linux/vhost.h include/uapi/linux/vhost.h

Those didn't touch things used in tools, i.e. the following continues
working:

  $ tools/perf/trace/beauty/vhost_virtio_ioctl.sh
  static const char *vhost_virtio_ioctl_cmds[] = {
          [0x00] = "SET_FEATURES",
          [0x01] = "SET_OWNER",
          [0x02] = "RESET_OWNER",
          [0x03] = "SET_MEM_TABLE",
          [0x04] = "SET_LOG_BASE",
          [0x07] = "SET_LOG_FD",
          [0x10] = "SET_VRING_NUM",
          [0x11] = "SET_VRING_ADDR",
          [0x12] = "SET_VRING_BASE",
          [0x13] = "SET_VRING_ENDIAN",
          [0x14] = "GET_VRING_ENDIAN",
          [0x20] = "SET_VRING_KICK",
          [0x21] = "SET_VRING_CALL",
          [0x22] = "SET_VRING_ERR",
          [0x23] = "SET_VRING_BUSYLOOP_TIMEOUT",
          [0x24] = "GET_VRING_BUSYLOOP_TIMEOUT",
          [0x25] = "SET_BACKEND_FEATURES",
          [0x30] = "NET_SET_BACKEND",
          [0x40] = "SCSI_SET_ENDPOINT",
          [0x41] = "SCSI_CLEAR_ENDPOINT",
          [0x42] = "SCSI_GET_ABI_VERSION",
          [0x43] = "SCSI_SET_EVENTS_MISSED",
          [0x44] = "SCSI_GET_EVENTS_MISSED",
          [0x60] = "VSOCK_SET_GUEST_CID",
          [0x61] = "VSOCK_SET_RUNNING",
  };
  static const char *vhost_virtio_ioctl_read_cmds[] = {
          [0x00] = "GET_FEATURES",
          [0x12] = "GET_VRING_BASE",
          [0x26] = "GET_BACKEND_FEATURES",
  };
  $

At some point in the eBPFication of perf, using something like:

	# perf trace -e ioctl(cmd=VHOST_VRING*)

Will setup a BPF filter right at the raw_syscalls:sys_enter tracepoint,
i.e. filtering at the origin.

Cc: Adrian Hunter 
Cc: Jiri Olsa 
Cc: Luis Cláudio Gonçalves 
Cc: Michael S. Tsirkin 
Cc: Namhyung Kim 
Cc: Paolo Bonzini 
Cc: Wang Nan 
Link: https://lkml.kernel.org/n/tip-g28usrt7l59lwq3wuh8vzbig@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo

tools headers uapi: Update tools's copy of linux/vhost.h

2018-09-11T16:12:40+00:00

To get the changes in:

	c48300c92ad9 ("vhost: fix VHOST_GET_BACKEND_FEATURES ioctl request definition")

This makes 'perf trace' and other tools in the future using its
beautifiers in a libbeauty.so library be able to translate these new
ioctl to strings:

  $ tools/perf/trace/beauty/vhost_virtio_ioctl.sh  > /tmp/after
  $ diff -u /tmp/before /tmp/after
  --- /tmp/before	2018-09-11 13:10:57.923038244 -0300
  +++ /tmp/after	2018-09-11 13:11:20.329012685 -0300
  @@ -15,6 +15,7 @@
        [0x22] = "SET_VRING_ERR",
        [0x23] = "SET_VRING_BUSYLOOP_TIMEOUT",
        [0x24] = "GET_VRING_BUSYLOOP_TIMEOUT",
  +     [0x25] = "SET_BACKEND_FEATURES",
        [0x30] = "NET_SET_BACKEND",
        [0x40] = "SCSI_SET_ENDPOINT",
        [0x41] = "SCSI_CLEAR_ENDPOINT",
  @@ -27,4 +28,5 @@
   static const char *vhost_virtio_ioctl_read_cmds[] = {
        [0x00] = "GET_FEATURES",
        [0x12] = "GET_VRING_BASE",
  +	[0x26] = "GET_BACKEND_FEATURES",
  };
  $

We'll also use this to be able to express syscall filters using symbolic
these symbolic names, something like:

	# perf trace --all-cpus -e ioctl(cmd=*GET_FEATURES)

This silences the following warning during perf's build:

  Warning: Kernel ABI header at 'tools/include/uapi/linux/vhost.h' differs from latest version at 'include/uapi/linux/vhost.h'
  diff -u tools/include/uapi/linux/vhost.h include/uapi/linux/vhost.h

Cc: Adrian Hunter 
Cc: David Ahern 
Cc: David S. Miller 
Cc: Gleb Fotengauer-Malinovskiy 
Cc: Jiri Olsa 
Cc: Namhyung Kim 
Cc: Peter Zijlstra 
Cc: Wang Nan 
Link: https://lkml.kernel.org/n/tip-35x71oei2hdui9u0tarpimbq@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo 

Signed-off-by: Arnaldo Carvalho de Melo

tools/headers: Synchronize kernel ABI headers

2017-11-04T08:27:46+00:00

After the SPDX license tags were added a number of tooling headers got out of
sync with their kernel variants, generating lots of build warnings.

Sync them:

 - tools/arch/x86/include/asm/disabled-features.h,
   tools/arch/x86/include/asm/required-features.h,
   tools/include/linux/hash.h:

     Remove the SPDX tag where the kernel version does not have it.

 - tools/include/asm-generic/bitops/__fls.h,
   tools/include/asm-generic/bitops/arch_hweight.h,
   tools/include/asm-generic/bitops/const_hweight.h,
   tools/include/asm-generic/bitops/fls.h,
   tools/include/asm-generic/bitops/fls64.h,
   tools/include/uapi/asm-generic/ioctls.h,
   tools/include/uapi/asm-generic/mman-common.h,
   tools/include/uapi/sound/asound.h,
   tools/include/uapi/linux/kvm.h,
   tools/include/uapi/linux/perf_event.h,
   tools/include/uapi/linux/sched.h,
   tools/include/uapi/linux/vhost.h,
   tools/include/uapi/sound/asound.h:

     Add the SPDX tag of the respective kernel header.

 - tools/include/uapi/linux/bpf_common.h,
   tools/include/uapi/linux/fcntl.h,
   tools/include/uapi/linux/hw_breakpoint.h,
   tools/include/uapi/linux/mman.h,
   tools/include/uapi/linux/stat.h,

     Change the tag to the kernel header version:

       -/* SPDX-License-Identifier: GPL-2.0 */
       +/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */

Also sync other header details:

 - include/uapi/sound/asound.h:

     Fix pointless end of line whitespace noise the header grew in this cycle.

 - tools/arch/x86/lib/memcpy_64.S:

     Sync the code and add tools/include/asm/export.h with dummy wrappers
     to support building the kernel side code in a tooling header environment.

 - tools/include/uapi/asm-generic/mman.h,
   tools/include/uapi/linux/bpf.h:

     Sync other details that don't impact tooling's use of the ABIs.

Acked-by: Arnaldo Carvalho de Melo 
Cc: linux-kernel@vger.kernel.org
Cc: Greg Kroah-Hartman 
Cc: Linus Torvalds 
Cc: Peter Zijlstra 
Cc: Thomas Gleixner 
Cc: Peter Zijlstra 
Cc: Namhyung Kim 
Cc: Jiri Olsa 
Cc: Stephen Rothwell 
Signed-off-by: Ingo Molnar

tools include uapi: Grab a copy of linux/vhost.h

2017-08-01T16:04:56+00:00

We will use it to generate tables for beautifying ioctl's 'cmd' arg.

Cc: Adrian Hunter 
Cc: David Ahern 
Cc: Jason Wang 
Cc: Jiri Olsa 
Cc: "Michael S. Tsirkin" 
Cc: Namhyung Kim 
Cc: Wang Nan 
Link: http://lkml.kernel.org/n/tip-nxwpq34hu6te1m2ra5m7o8n9@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo