tools: kvm_stat: Add comments

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 <frankja@linux.vnet.ibm.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

path: root/cpusched.h

#ifndef CPUSCHED_H
#define CPUSCHED_H

extern void init_cpusched(unsigned int cpus);
extern unsigned int socket_to_cpu(int fd);
extern unsigned int register_socket(int fd);
extern void unregister_socket(int fd);
extern void destroy_cpusched(void);

#endif /* CPUSCHED_H */