diff options
Diffstat (limited to 'scripts/kvm')
| -rwxr-xr-x | scripts/kvm/kvm_stat | 64 |
1 files changed, 32 insertions, 32 deletions
diff --git a/scripts/kvm/kvm_stat b/scripts/kvm/kvm_stat index 63232767f3..c4bf900e1b 100755 --- a/scripts/kvm/kvm_stat +++ b/scripts/kvm/kvm_stat @@ -36,7 +36,7 @@ class DebugfsProvider(object): return int(file(self.base + '/' + key).read()) return dict([(key, val(key)) for key in self._fields]) -vmx_exit_reasons = { +VMX_EXIT_REASONS = { 0: 'EXCEPTION_NMI', 1: 'EXTERNAL_INTERRUPT', 2: 'TRIPLE_FAULT', @@ -78,7 +78,7 @@ vmx_exit_reasons = { 58: 'INVPCID', } -svm_exit_reasons = { +SVM_EXIT_REASONS = { 0x000: 'READ_CR0', 0x003: 'READ_CR3', 0x004: 'READ_CR4', @@ -154,7 +154,7 @@ svm_exit_reasons = { } # EC definition of HSR (from arch/arm64/include/asm/kvm_arm.h) -aarch64_exit_reasons = { +AARCH64_EXIT_REASONS = { 0x00: 'UNKNOWN', 0x01: 'WFI', 0x03: 'CP15_32', @@ -193,7 +193,7 @@ aarch64_exit_reasons = { } # From include/uapi/linux/kvm.h, KVM_EXIT_xxx -userspace_exit_reasons = { +USERSPACE_EXIT_REASONS = { 0: 'UNKNOWN', 1: 'EXCEPTION', 2: 'IO', @@ -221,15 +221,15 @@ userspace_exit_reasons = { 24: 'SYSTEM_EVENT', } -x86_exit_reasons = { - 'vmx': vmx_exit_reasons, - 'svm': svm_exit_reasons, +X86_EXIT_REASONS = { + 'vmx': VMX_EXIT_REASONS, + 'svm': SVM_EXIT_REASONS, } -sc_perf_evt_open = None -exit_reasons = None +SC_PERF_EVT_OPEN = None +EXIT_REASONS = None -ioctl_numbers = { +IOCTL_NUMBERS = { 'SET_FILTER' : 0x40082406, 'ENABLE' : 0x00002400, 'DISABLE' : 0x00002401, @@ -238,19 +238,19 @@ ioctl_numbers = { def x86_init(flag): globals().update({ - 'sc_perf_evt_open' : 298, - 'exit_reasons' : x86_exit_reasons[flag], + 'SC_PERF_EVT_OPEN' : 298, + 'EXIT_REASONS' : X86_EXIT_REASONS[flag], }) def s390_init(): globals().update({ - 'sc_perf_evt_open' : 331 + 'SC_PERF_EVT_OPEN' : 331 }) def ppc_init(): globals().update({ - 'sc_perf_evt_open' : 319, - 'ioctl_numbers' : { + 'SC_PERF_EVT_OPEN' : 319, + 'IOCTL_NUMBERS' : { 'SET_FILTER' : 0x80002406 | (ctypes.sizeof(ctypes.c_char_p) << 16), 'ENABLE' : 0x20002400, 'DISABLE' : 0x20002401, @@ -259,8 +259,8 @@ def ppc_init(): def aarch64_init(): globals().update({ - 'sc_perf_evt_open' : 241, - 'exit_reasons' : aarch64_exit_reasons, + 'SC_PERF_EVT_OPEN' : 241, + 'EXIT_REASONS' : AARCH64_EXIT_REASONS, }) def detect_platform(): @@ -274,7 +274,7 @@ def detect_platform(): for line in file('/proc/cpuinfo').readlines(): if line.startswith('flags'): for flag in line.split(): - if flag in x86_exit_reasons: + if flag in X86_EXIT_REASONS: x86_init(flag) return elif line.startswith('vendor_id'): @@ -298,9 +298,9 @@ def invert(d): return dict((x[1], x[0]) for x in d.iteritems()) filters = {} -filters['kvm_userspace_exit'] = ('reason', invert(userspace_exit_reasons)) -if exit_reasons: - filters['kvm_exit'] = ('exit_reason', invert(exit_reasons)) +filters['kvm_userspace_exit'] = ('reason', invert(USERSPACE_EXIT_REASONS)) +if EXIT_REASONS: + filters['kvm_exit'] = ('exit_reason', invert(EXIT_REASONS)) libc = ctypes.CDLL('libc.so.6') syscall = libc.syscall @@ -321,7 +321,7 @@ class perf_event_attr(ctypes.Structure): ('bp_len', ctypes.c_uint64), ] def _perf_event_open(attr, pid, cpu, group_fd, flags): - return syscall(sc_perf_evt_open, 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)) @@ -391,14 +391,14 @@ class Event(object): err = get_errno()[0] raise Exception('perf_event_open failed, errno = ' + err.__str__()) if filter: - fcntl.ioctl(fd, ioctl_numbers['SET_FILTER'], filter) + fcntl.ioctl(fd, IOCTL_NUMBERS['SET_FILTER'], filter) self.fd = fd def enable(self): - fcntl.ioctl(self.fd, ioctl_numbers['ENABLE'], 0) + fcntl.ioctl(self.fd, IOCTL_NUMBERS['ENABLE'], 0) def disable(self): - fcntl.ioctl(self.fd, ioctl_numbers['DISABLE'], 0) + fcntl.ioctl(self.fd, IOCTL_NUMBERS['DISABLE'], 0) def reset(self): - fcntl.ioctl(self.fd, ioctl_numbers['RESET'], 0) + fcntl.ioctl(self.fd, IOCTL_NUMBERS['RESET'], 0) class TracepointProvider(object): def __init__(self): @@ -505,8 +505,8 @@ if not os.access('/sys/kernel/debug/kvm', os.F_OK): print "and ensure the kvm modules are loaded" sys.exit(1) -label_width = 40 -number_width = 10 +LABEL_WIDTH = 40 +NUMBER_WIDTH = 10 def tui(screen, stats): curses.use_default_colors() @@ -524,8 +524,8 @@ def tui(screen, stats): screen.erase() screen.addstr(0, 0, 'kvm statistics') screen.addstr(2, 1, 'Event') - screen.addstr(2, 1 + label_width + number_width - len('Total'), 'Total') - screen.addstr(2, 1 + label_width + number_width + 8 - len('Current'), 'Current') + screen.addstr(2, 1 + LABEL_WIDTH + NUMBER_WIDTH - len('Total'), 'Total') + screen.addstr(2, 1 + LABEL_WIDTH + NUMBER_WIDTH + 8 - len('Current'), 'Current') row = 3 s = stats.get() def sortkey(x): @@ -541,9 +541,9 @@ def tui(screen, stats): break col = 1 screen.addstr(row, col, key) - col += label_width + col += LABEL_WIDTH screen.addstr(row, col, '%10d' % (values[0],)) - col += number_width + col += NUMBER_WIDTH if values[1] is not None: screen.addstr(row, col, '%8d' % (values[1] / sleeptime,)) row += 1 |