Wei Huang 874b1cfad5 kvm_stat: Print errno when syscall to perf_event_open() fails ...

kvm_stat uses syscall() to call perf_event_open(). If this function
call fails, the returned value is -1, which doesn't tell the details
of such failure (i.e. ENOSYS or EINVAL). This patch retrieves errno
and prints it when syscall() fails. The error message will look like
"Exception: perf_event_open failed, errno = 38".

Signed-off-by: Wei Huang <wei@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

2015-01-26 12:27:05 +01:00

..

kvm_flightrecorder

kvm: add flightrecorder script

2012-04-12 19:01:41 -03:00

kvm_stat

kvm_stat: Print errno when syscall to perf_event_open() fails

2015-01-26 12:27:05 +01:00

vmxcap

vmxcap: Update according to SDM of September 2014

2014-09-26 21:08:56 +04:00