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| author | Heinz Graalfs <graalfs@linux.vnet.ibm.com> | 2012-10-29 02:13:20 +0000 |
|---|---|---|
| committer | Alexander Graf <agraf@suse.de> | 2012-10-29 19:41:55 +0100 |
| commit | 1b3e6f88dc151578acb6158e22570cf3ee7cbb69 (patch) | |
| tree | 1f3694aff150c9ea9332e0716c0d1af993063696 /scripts/kvm | |
| parent | 235a3f0bed3584fe65079ffa07c7a842971f261e (diff) | |
s390/kvm_stat: correct sys_perf_event_open syscall number
Correct sys_perf_event_open syscall number for s390 architecture
- the hardcoded syscall number 298 is for x86 but should
be different for other architectures.
In case we figure out via /proc/cpuinfo that we are running
on s390 the appropriate syscall number is used from map
syscall_numbers; other architectures can extend this.
Signed-off-by: Heinz Graalfs <graalfs@linux.vnet.ibm.com>
Signed-off-by: Jens Freimann <jfrei@linux.vnet.ibm.com>
Signed-off-by: Alexander Graf <agraf@suse.de>
Diffstat (limited to 'scripts/kvm')
| -rwxr-xr-x | scripts/kvm/kvm_stat | 11 |
1 files changed, 9 insertions, 2 deletions
diff --git a/scripts/kvm/kvm_stat b/scripts/kvm/kvm_stat index e8d68f05ca..762544b197 100755 --- a/scripts/kvm/kvm_stat +++ b/scripts/kvm/kvm_stat @@ -170,6 +170,12 @@ vendor_exit_reasons = { 'IBM/S390': s390_exit_reasons, } +syscall_numbers = { + 'IBM/S390': 331, +} + +sc_perf_evt_open = 298 + exit_reasons = None for line in file('/proc/cpuinfo').readlines(): @@ -177,7 +183,8 @@ for line in file('/proc/cpuinfo').readlines(): for flag in line.split(): if flag in vendor_exit_reasons: exit_reasons = vendor_exit_reasons[flag] - + if flag in syscall_numbers: + sc_perf_evt_open = syscall_numbers[flag] filters = { 'kvm_exit': ('exit_reason', exit_reasons) } @@ -206,7 +213,7 @@ class perf_event_attr(ctypes.Structure): ('bp_len', ctypes.c_uint64), ] def _perf_event_open(attr, pid, cpu, group_fd, flags): - return syscall(298, ctypes.pointer(attr), ctypes.c_int(pid), + return syscall(sc_perf_evt_open, ctypes.pointer(attr), ctypes.c_int(pid), ctypes.c_int(cpu), ctypes.c_int(group_fd), ctypes.c_long(flags)) |