litmus-rt-ext-res.git/tools/kvm, branch EXT-RES

tools: kvm_stat: Add comments

2016-05-25T14:12:06+00:00

A lot of the code works with the perf events about which only sparse
documentation was available until 2012. Having that information now,
we can clarify what is done in the code.

Signed-off-by: Janosch Frank 
Signed-off-by: Paolo Bonzini

tools: kvm_stat: Introduce pid monitoring

2016-05-25T14:12:06+00:00

Having stats for single VMs can help to determine the problem of a VM
without the need of running other tools like perf.

The tracepoints already allowed pid level monitoring, but kvm_stat
didn't have support for it till now. Support for the newly implemented
debugfs vm monitoring was also implemented.

Signed-off-by: Janosch Frank 
Signed-off-by: Paolo Bonzini

tools: kvm_stat: Powerpc related fixes

2016-05-25T14:12:04+00:00

kvm_stat script is failing to execute on powerpc :
 # ./kvm_stat
Traceback (most recent call last):
  File "./kvm_stat", line 825, in 
    main()
  File "./kvm_stat", line 813, in main
    providers = get_providers(options)
  File "./kvm_stat", line 778, in get_providers
    providers.append(TracepointProvider())
  File "./kvm_stat", line 416, in __init__
    self.filters = get_filters()
  File "./kvm_stat", line 315, in get_filters
    if ARCH.exit_reasons:
AttributeError: 'ArchPPC' object has no attribute 'exit_reasons'

This is because, its trying to access a non-defined attribute.

Also, the IOCTL number of RESET is incorrect for powerpc. The correct
number has been added.

Signed-off-by: Hemant Kumar 
Signed-off-by: Paolo Bonzini

tools: Add kvm_stat man page

2016-05-25T14:12:03+00:00

Converted from the Texinfo source in QEMU to asciidoc.  The a2x
incantation was provided by Janosch Frank.

Signed-off-by: Paolo Bonzini

tools: Add kvm_stat vm monitor script

2016-05-25T14:12:03+00:00

This tool displays kvm vm exit statistics to ease vm monitoring. It
takes its data from the kvm debugfs files or the vm tracepoints and
outputs them as a curses ui or simple text.

It was moved from qemu, as it is dependent on the kernel whereas qemu
works with a large number of kernel versions, some of which may break
the script.

Signed-off-by: Janosch Frank 
Signed-off-by: Paolo Bonzini