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-rw-r--r--tools/build/feature/test-bpf.c1
-rw-r--r--tools/include/uapi/linux/bpf.h11
-rwxr-xr-xtools/kvm/kvm_stat/kvm_stat669
-rw-r--r--tools/kvm/kvm_stat/kvm_stat.txt12
-rw-r--r--tools/lib/bpf/bpf.c22
-rw-r--r--tools/lib/bpf/bpf.h4
-rw-r--r--tools/testing/selftests/bpf/Makefile6
-rw-r--r--tools/testing/selftests/bpf/include/uapi/linux/types.h22
-rw-r--r--tools/testing/selftests/bpf/test_align.c453
-rw-r--r--tools/testing/selftests/bpf/test_pkt_access.c1
-rwxr-xr-xtools/testing/selftests/ftrace/ftracetest2
-rw-r--r--tools/testing/selftests/ftrace/test.d/ftrace/func_event_triggers.tc2
-rw-r--r--tools/testing/selftests/ftrace/test.d/functions4
-rw-r--r--tools/testing/selftests/ftrace/test.d/instances/instance-event.tc8
-rw-r--r--tools/testing/selftests/powerpc/tm/.gitignore1
-rw-r--r--tools/testing/selftests/powerpc/tm/Makefile4
-rw-r--r--tools/testing/selftests/powerpc/tm/tm-vmx-unavail.c118
17 files changed, 1090 insertions, 250 deletions
diff --git a/tools/build/feature/test-bpf.c b/tools/build/feature/test-bpf.c
index ebc6dceddb58..7598361ef1f1 100644
--- a/tools/build/feature/test-bpf.c
+++ b/tools/build/feature/test-bpf.c
@@ -29,6 +29,7 @@ int main(void)
attr.log_size = 0;
attr.log_level = 0;
attr.kern_version = 0;
+ attr.prog_flags = 0;
/*
* Test existence of __NR_bpf and BPF_PROG_LOAD.
diff --git a/tools/include/uapi/linux/bpf.h b/tools/include/uapi/linux/bpf.h
index e553529929f6..94dfa9def355 100644
--- a/tools/include/uapi/linux/bpf.h
+++ b/tools/include/uapi/linux/bpf.h
@@ -132,6 +132,13 @@ enum bpf_attach_type {
*/
#define BPF_F_ALLOW_OVERRIDE (1U << 0)
+/* If BPF_F_STRICT_ALIGNMENT is used in BPF_PROG_LOAD command, the
+ * verifier will perform strict alignment checking as if the kernel
+ * has been built with CONFIG_EFFICIENT_UNALIGNED_ACCESS not set,
+ * and NET_IP_ALIGN defined to 2.
+ */
+#define BPF_F_STRICT_ALIGNMENT (1U << 0)
+
#define BPF_PSEUDO_MAP_FD 1
/* flags for BPF_MAP_UPDATE_ELEM command */
@@ -177,6 +184,7 @@ union bpf_attr {
__u32 log_size; /* size of user buffer */
__aligned_u64 log_buf; /* user supplied buffer */
__u32 kern_version; /* checked when prog_type=kprobe */
+ __u32 prog_flags;
};
struct { /* anonymous struct used by BPF_OBJ_* commands */
@@ -481,8 +489,7 @@ union bpf_attr {
* u32 bpf_get_socket_uid(skb)
* Get the owner uid of the socket stored inside sk_buff.
* @skb: pointer to skb
- * Return: uid of the socket owner on success or 0 if the socket pointer
- * inside sk_buff is NULL
+ * Return: uid of the socket owner on success or overflowuid if failed.
*/
#define __BPF_FUNC_MAPPER(FN) \
FN(unspec), \
diff --git a/tools/kvm/kvm_stat/kvm_stat b/tools/kvm/kvm_stat/kvm_stat
index 8f74ed8e7237..dd8f00cfb8b4 100755
--- a/tools/kvm/kvm_stat/kvm_stat
+++ b/tools/kvm/kvm_stat/kvm_stat
@@ -295,114 +295,6 @@ class ArchS390(Arch):
ARCH = Arch.get_arch()
-def walkdir(path):
- """Returns os.walk() data for specified directory.
-
- As it is only a wrapper it returns the same 3-tuple of (dirpath,
- dirnames, filenames).
- """
- return next(os.walk(path))
-
-
-def parse_int_list(list_string):
- """Returns an int list from a string of comma separated integers and
- integer ranges."""
- integers = []
- members = list_string.split(',')
-
- for member in members:
- if '-' not in member:
- integers.append(int(member))
- else:
- int_range = member.split('-')
- integers.extend(range(int(int_range[0]),
- int(int_range[1]) + 1))
-
- return integers
-
-
-def get_pid_from_gname(gname):
- """Fuzzy function to convert guest name to QEMU process pid.
-
- Returns a list of potential pids, can be empty if no match found.
- Throws an exception on processing errors.
-
- """
- pids = []
- try:
- child = subprocess.Popen(['ps', '-A', '--format', 'pid,args'],
- stdout=subprocess.PIPE)
- except:
- raise Exception
- for line in child.stdout:
- line = line.lstrip().split(' ', 1)
- # perform a sanity check before calling the more expensive
- # function to possibly extract the guest name
- if ' -name ' in line[1] and gname == get_gname_from_pid(line[0]):
- pids.append(int(line[0]))
- child.stdout.close()
-
- return pids
-
-
-def get_gname_from_pid(pid):
- """Returns the guest name for a QEMU process pid.
-
- Extracts the guest name from the QEMU comma line by processing the '-name'
- option. Will also handle names specified out of sequence.
-
- """
- name = ''
- try:
- line = open('/proc/{}/cmdline'.format(pid), 'rb').read().split('\0')
- parms = line[line.index('-name') + 1].split(',')
- while '' in parms:
- # commas are escaped (i.e. ',,'), hence e.g. 'foo,bar' results in
- # ['foo', '', 'bar'], which we revert here
- idx = parms.index('')
- parms[idx - 1] += ',' + parms[idx + 1]
- del parms[idx:idx+2]
- # the '-name' switch allows for two ways to specify the guest name,
- # where the plain name overrides the name specified via 'guest='
- for arg in parms:
- if '=' not in arg:
- name = arg
- break
- if arg[:6] == 'guest=':
- name = arg[6:]
- except (ValueError, IOError, IndexError):
- pass
-
- return name
-
-
-def get_online_cpus():
- """Returns a list of cpu id integers."""
- with open('/sys/devices/system/cpu/online') as cpu_list:
- cpu_string = cpu_list.readline()
- return parse_int_list(cpu_string)
-
-
-def get_filters():
- """Returns a dict of trace events, their filter ids and
- the values that can be filtered.
-
- Trace events can be filtered for special values by setting a
- filter string via an ioctl. The string normally has the format
- identifier==value. For each filter a new event will be created, to
- be able to distinguish the events.
-
- """
- filters = {}
- filters['kvm_userspace_exit'] = ('reason', USERSPACE_EXIT_REASONS)
- if ARCH.exit_reasons:
- filters['kvm_exit'] = ('exit_reason', ARCH.exit_reasons)
- return filters
-
-libc = ctypes.CDLL('libc.so.6', use_errno=True)
-syscall = libc.syscall
-
-
class perf_event_attr(ctypes.Structure):
"""Struct that holds the necessary data to set up a trace event.
@@ -432,25 +324,6 @@ class perf_event_attr(ctypes.Structure):
self.read_format = PERF_FORMAT_GROUP
-def perf_event_open(attr, pid, cpu, group_fd, flags):
- """Wrapper for the sys_perf_evt_open() syscall.
-
- Used to set up performance events, returns a file descriptor or -1
- on error.
-
- Attributes are:
- - syscall number
- - struct perf_event_attr *
- - pid or -1 to monitor all pids
- - cpu number or -1 to monitor all cpus
- - The file descriptor of the group leader or -1 to create a group.
- - flags
-
- """
- return syscall(ARCH.sc_perf_evt_open, ctypes.pointer(attr),
- ctypes.c_int(pid), ctypes.c_int(cpu),
- ctypes.c_int(group_fd), ctypes.c_long(flags))
-
PERF_TYPE_TRACEPOINT = 2
PERF_FORMAT_GROUP = 1 << 3
@@ -495,6 +368,8 @@ class Event(object):
"""Represents a performance event and manages its life cycle."""
def __init__(self, name, group, trace_cpu, trace_pid, trace_point,
trace_filter, trace_set='kvm'):
+ self.libc = ctypes.CDLL('libc.so.6', use_errno=True)
+ self.syscall = self.libc.syscall
self.name = name
self.fd = None
self.setup_event(group, trace_cpu, trace_pid, trace_point,
@@ -511,6 +386,25 @@ class Event(object):
if self.fd:
os.close(self.fd)
+ def perf_event_open(self, attr, pid, cpu, group_fd, flags):
+ """Wrapper for the sys_perf_evt_open() syscall.
+
+ Used to set up performance events, returns a file descriptor or -1
+ on error.
+
+ Attributes are:
+ - syscall number
+ - struct perf_event_attr *
+ - pid or -1 to monitor all pids
+ - cpu number or -1 to monitor all cpus
+ - The file descriptor of the group leader or -1 to create a group.
+ - flags
+
+ """
+ return self.syscall(ARCH.sc_perf_evt_open, ctypes.pointer(attr),
+ ctypes.c_int(pid), ctypes.c_int(cpu),
+ ctypes.c_int(group_fd), ctypes.c_long(flags))
+
def setup_event_attribute(self, trace_set, trace_point):
"""Returns an initialized ctype perf_event_attr struct."""
@@ -539,8 +433,8 @@ class Event(object):
if group.events:
group_leader = group.events[0].fd
- fd = perf_event_open(event_attr, trace_pid,
- trace_cpu, group_leader, 0)
+ fd = self.perf_event_open(event_attr, trace_pid,
+ trace_cpu, group_leader, 0)
if fd == -1:
err = ctypes.get_errno()
raise OSError(err, os.strerror(err),
@@ -575,17 +469,53 @@ class Event(object):
fcntl.ioctl(self.fd, ARCH.ioctl_numbers['RESET'], 0)
-class TracepointProvider(object):
+class Provider(object):
+ """Encapsulates functionalities used by all providers."""
+ @staticmethod
+ def is_field_wanted(fields_filter, field):
+ """Indicate whether field is valid according to fields_filter."""
+ if not fields_filter:
+ return True
+ return re.match(fields_filter, field) is not None
+
+ @staticmethod
+ def walkdir(path):
+ """Returns os.walk() data for specified directory.
+
+ As it is only a wrapper it returns the same 3-tuple of (dirpath,
+ dirnames, filenames).
+ """
+ return next(os.walk(path))
+
+
+class TracepointProvider(Provider):
"""Data provider for the stats class.
Manages the events/groups from which it acquires its data.
"""
- def __init__(self):
+ def __init__(self, pid, fields_filter):
self.group_leaders = []
- self.filters = get_filters()
- self._fields = self.get_available_fields()
- self._pid = 0
+ self.filters = self.get_filters()
+ self.update_fields(fields_filter)
+ self.pid = pid
+
+ @staticmethod
+ def get_filters():
+ """Returns a dict of trace events, their filter ids and
+ the values that can be filtered.
+
+ Trace events can be filtered for special values by setting a
+ filter string via an ioctl. The string normally has the format
+ identifier==value. For each filter a new event will be created, to
+ be able to distinguish the events.
+
+ """
+ filters = {}
+ filters['kvm_userspace_exit'] = ('reason', USERSPACE_EXIT_REASONS)
+ if ARCH.exit_reasons:
+ filters['kvm_exit'] = ('exit_reason', ARCH.exit_reasons)
+ return filters
def get_available_fields(self):
"""Returns a list of available event's of format 'event name(filter
@@ -603,7 +533,7 @@ class TracepointProvider(object):
"""
path = os.path.join(PATH_DEBUGFS_TRACING, 'events', 'kvm')
- fields = walkdir(path)[1]
+ fields = self.walkdir(path)[1]
extra = []
for field in fields:
if field in self.filters:
@@ -613,6 +543,34 @@ class TracepointProvider(object):
fields += extra
return fields
+ def update_fields(self, fields_filter):
+ """Refresh fields, applying fields_filter"""
+ self._fields = [field for field in self.get_available_fields()
+ if self.is_field_wanted(fields_filter, field)]
+
+ @staticmethod
+ def get_online_cpus():
+ """Returns a list of cpu id integers."""
+ def parse_int_list(list_string):
+ """Returns an int list from a string of comma separated integers and
+ integer ranges."""
+ integers = []
+ members = list_string.split(',')
+
+ for member in members:
+ if '-' not in member:
+ integers.append(int(member))
+ else:
+ int_range = member.split('-')
+ integers.extend(range(int(int_range[0]),
+ int(int_range[1]) + 1))
+
+ return integers
+
+ with open('/sys/devices/system/cpu/online') as cpu_list:
+ cpu_string = cpu_list.readline()
+ return parse_int_list(cpu_string)
+
def setup_traces(self):
"""Creates all event and group objects needed to be able to retrieve
data."""
@@ -621,9 +579,9 @@ class TracepointProvider(object):
# Fetch list of all threads of the monitored pid, as qemu
# starts a thread for each vcpu.
path = os.path.join('/proc', str(self._pid), 'task')
- groupids = walkdir(path)[1]
+ groupids = self.walkdir(path)[1]
else:
- groupids = get_online_cpus()
+ groupids = self.get_online_cpus()
# The constant is needed as a buffer for python libs, std
# streams and other files that the script opens.
@@ -671,9 +629,6 @@ class TracepointProvider(object):
self.group_leaders.append(group)
- def available_fields(self):
- return self.get_available_fields()
-
@property
def fields(self):
return self._fields
@@ -707,7 +662,7 @@ class TracepointProvider(object):
self.setup_traces()
self.fields = self._fields
- def read(self):
+ def read(self, by_guest=0):
"""Returns 'event name: current value' for all enabled events."""
ret = defaultdict(int)
for group in self.group_leaders:
@@ -723,16 +678,17 @@ class TracepointProvider(object):
event.reset()
-class DebugfsProvider(object):
+class DebugfsProvider(Provider):
"""Provides data from the files that KVM creates in the kvm debugfs
folder."""
- def __init__(self):
- self._fields = self.get_available_fields()
+ def __init__(self, pid, fields_filter, include_past):
+ self.update_fields(fields_filter)
self._baseline = {}
- self._pid = 0
self.do_read = True
self.paths = []
- self.reset()
+ self.pid = pid
+ if include_past:
+ self.restore()
def get_available_fields(self):
""""Returns a list of available fields.
@@ -740,7 +696,12 @@ class DebugfsProvider(object):
The fields are all available KVM debugfs files
"""
- return walkdir(PATH_DEBUGFS_KVM)[2]
+ return self.walkdir(PATH_DEBUGFS_KVM)[2]
+
+ def update_fields(self, fields_filter):
+ """Refresh fields, applying fields_filter"""
+ self._fields = [field for field in self.get_available_fields()
+ if self.is_field_wanted(fields_filter, field)]
@property
def fields(self):
@@ -757,10 +718,9 @@ class DebugfsProvider(object):
@pid.setter
def pid(self, pid):
+ self._pid = pid
if pid != 0:
- self._pid = pid
-
- vms = walkdir(PATH_DEBUGFS_KVM)[1]
+ vms = self.walkdir(PATH_DEBUGFS_KVM)[1]
if len(vms) == 0:
self.do_read = False
@@ -771,8 +731,15 @@ class DebugfsProvider(object):
self.do_read = True
self.reset()
- def read(self, reset=0):
- """Returns a dict with format:'file name / field -> current value'."""
+ def read(self, reset=0, by_guest=0):
+ """Returns a dict with format:'file name / field -> current value'.
+
+ Parameter 'reset':
+ 0 plain read
+ 1 reset field counts to 0
+ 2 restore the original field counts
+
+ """
results = {}
# If no debugfs filtering support is available, then don't read.
@@ -789,12 +756,22 @@ class DebugfsProvider(object):
for field in self._fields:
value = self.read_field(field, path)
key = path + field
- if reset:
+ if reset == 1:
self._baseline[key] = value
+ if reset == 2:
+ self._baseline[key] = 0
if self._baseline.get(key, -1) == -1:
self._baseline[key] = value
- results[field] = (results.get(field, 0) + value -
- self._baseline.get(key, 0))
+ increment = (results.get(field, 0) + value -
+ self._baseline.get(key, 0))
+ if by_guest:
+ pid = key.split('-')[0]
+ if pid in results:
+ results[pid] += increment
+ else:
+ results[pid] = increment
+ else:
+ results[field] = increment
return results
@@ -813,6 +790,11 @@ class DebugfsProvider(object):
self._baseline = {}
self.read(1)
+ def restore(self):
+ """Reset field counters"""
+ self._baseline = {}
+ self.read(2)
+
class Stats(object):
"""Manages the data providers and the data they provide.
@@ -821,33 +803,32 @@ class Stats(object):
provider data.
"""
- def __init__(self, providers, pid, fields=None):
- self.providers = providers
- self._pid_filter = pid
- self._fields_filter = fields
+ def __init__(self, options):
+ self.providers = self.get_providers(options)
+ self._pid_filter = options.pid
+ self._fields_filter = options.fields
self.values = {}
- self.update_provider_pid()
- self.update_provider_filters()
+
+ @staticmethod
+ def get_providers(options):
+ """Returns a list of data providers depending on the passed options."""
+ providers = []
+
+ if options.debugfs:
+ providers.append(DebugfsProvider(options.pid, options.fields,
+ options.dbgfs_include_past))
+ if options.tracepoints or not providers:
+ providers.append(TracepointProvider(options.pid, options.fields))
+
+ return providers
def update_provider_filters(self):
"""Propagates fields filters to providers."""
- def wanted(key):
- if not self._fields_filter:
- return True
- return re.match(self._fields_filter, key) is not None
-
# As we reset the counters when updating the fields we can
# also clear the cache of old values.
self.values = {}
for provider in self.providers:
- provider_fields = [key for key in provider.get_available_fields()
- if wanted(key)]
- provider.fields = provider_fields
-
- def update_provider_pid(self):
- """Propagates pid filters to providers."""
- for provider in self.providers:
- provider.pid = self._pid_filter
+ provider.update_fields(self._fields_filter)
def reset(self):
self.values = {}
@@ -873,27 +854,52 @@ class Stats(object):
if pid != self._pid_filter:
self._pid_filter = pid
self.values = {}
- self.update_provider_pid()
+ for provider in self.providers:
+ provider.pid = self._pid_filter
- def get(self):
+ def get(self, by_guest=0):
"""Returns a dict with field -> (value, delta to last value) of all
provider data."""
for provider in self.providers:
- new = provider.read()
- for key in provider.fields:
+ new = provider.read(by_guest=by_guest)
+ for key in new if by_guest else provider.fields:
oldval = self.values.get(key, (0, 0))[0]
newval = new.get(key, 0)
newdelta = newval - oldval
self.values[key] = (newval, newdelta)
return self.values
-LABEL_WIDTH = 40
-NUMBER_WIDTH = 10
-DELAY_INITIAL = 0.25
-DELAY_REGULAR = 3.0
+ def toggle_display_guests(self, to_pid):
+ """Toggle between collection of stats by individual event and by
+ guest pid
+
+ Events reported by DebugfsProvider change when switching to/from
+ reading by guest values. Hence we have to remove the excess event
+ names from self.values.
+
+ """
+ if any(isinstance(ins, TracepointProvider) for ins in self.providers):
+ return 1
+ if to_pid:
+ for provider in self.providers:
+ if isinstance(provider, DebugfsProvider):
+ for key in provider.fields:
+ if key in self.values.keys():
+ del self.values[key]
+ else:
+ oldvals = self.values.copy()
+ for key in oldvals:
+ if key.isdigit():
+ del self.values[key]
+ # Update oldval (see get())
+ self.get(to_pid)
+ return 0
+
+DELAY_DEFAULT = 3.0
MAX_GUEST_NAME_LEN = 48
MAX_REGEX_LEN = 44
DEFAULT_REGEX = r'^[^\(]*$'
+SORT_DEFAULT = 0
class Tui(object):
@@ -901,7 +907,10 @@ class Tui(object):
def __init__(self, stats):
self.stats = stats
self.screen = None
- self.update_drilldown()
+ self._delay_initial = 0.25
+ self._delay_regular = DELAY_DEFAULT
+ self._sorting = SORT_DEFAULT
+ self._display_guests = 0
def __enter__(self):
"""Initialises curses for later use. Based on curses.wrapper
@@ -929,7 +938,7 @@ class Tui(object):
return self
def __exit__(self, *exception):
- """Resets the terminal to its normal state. Based on curses.wrappre
+ """Resets the terminal to its normal state. Based on curses.wrapper
implementation from the Python standard library."""
if self.screen:
self.screen.keypad(0)
@@ -937,6 +946,86 @@ class Tui(object):
curses.nocbreak()
curses.endwin()
+ def get_all_gnames(self):
+ """Returns a list of (pid, gname) tuples of all running guests"""
+ res = []
+ try:
+ child = subprocess.Popen(['ps', '-A', '--format', 'pid,args'],
+ stdout=subprocess.PIPE)
+ except:
+ raise Exception
+ for line in child.stdout:
+ line = line.lstrip().split(' ', 1)
+ # perform a sanity check before calling the more expensive
+ # function to possibly extract the guest name
+ if ' -name ' in line[1]:
+ res.append((line[0], self.get_gname_from_pid(line[0])))
+ child.stdout.close()
+
+ return res
+
+ def print_all_gnames(self, row):
+ """Print a list of all running guests along with their pids."""
+ self.screen.addstr(row, 2, '%8s %-60s' %
+ ('Pid', 'Guest Name (fuzzy list, might be '
+ 'inaccurate!)'),
+ curses.A_UNDERLINE)
+ row += 1
+ try:
+ for line in self.get_all_gnames():
+ self.screen.addstr(row, 2, '%8s %-60s' % (line[0], line[1]))
+ row += 1
+ if row >= self.screen.getmaxyx()[0]:
+ break
+ except Exception:
+ self.screen.addstr(row + 1, 2, 'Not available')
+
+ def get_pid_from_gname(self, gname):
+ """Fuzzy function to convert guest name to QEMU process pid.
+
+ Returns a list of potential pids, can be empty if no match found.
+ Throws an exception on processing errors.
+
+ """
+ pids = []
+ for line in self.get_all_gnames():
+ if gname == line[1]:
+ pids.append(int(line[0]))
+
+ return pids
+
+ @staticmethod
+ def get_gname_from_pid(pid):
+ """Returns the guest name for a QEMU process pid.
+
+ Extracts the guest name from the QEMU comma line by processing the
+ '-name' option. Will also handle names specified out of sequence.
+
+ """
+ name = ''
+ try:
+ line = open('/proc/{}/cmdline'
+ .format(pid), 'rb').read().split('\0')
+ parms = line[line.index('-name') + 1].split(',')
+ while '' in parms:
+ # commas are escaped (i.e. ',,'), hence e.g. 'foo,bar' results
+ # in # ['foo', '', 'bar'], which we revert here
+ idx = parms.index('')
+ parms[idx - 1] += ',' + parms[idx + 1]
+ del parms[idx:idx+2]
+ # the '-name' switch allows for two ways to specify the guest name,
+ # where the plain name overrides the name specified via 'guest='
+ for arg in parms:
+ if '=' not in arg:
+ name = arg
+ break
+ if arg[:6] == 'guest=':
+ name = arg[6:]
+ except (ValueError, IOError, IndexError):
+ pass
+
+ return name
+
def update_drilldown(self):
"""Sets or removes a filter that only allows fields without braces."""
if not self.stats.fields_filter:
@@ -954,7 +1043,7 @@ class Tui(object):
if pid is None:
pid = self.stats.pid_filter
self.screen.erase()
- gname = get_gname_from_pid(pid)
+ gname = self.get_gname_from_pid(pid)
if gname:
gname = ('({})'.format(gname[:MAX_GUEST_NAME_LEN] + '...'
if len(gname) > MAX_GUEST_NAME_LEN
@@ -970,13 +1059,13 @@ class Tui(object):
if len(regex) > MAX_REGEX_LEN:
regex = regex[:MAX_REGEX_LEN] + '...'
self.screen.addstr(1, 17, 'regex filter: {0}'.format(regex))
- self.screen.addstr(2, 1, 'Event')
- self.screen.addstr(2, 1 + LABEL_WIDTH + NUMBER_WIDTH -
- len('Total'), 'Total')
- self.screen.addstr(2, 1 + LABEL_WIDTH + NUMBER_WIDTH + 7 -
- len('%Total'), '%Total')
- self.screen.addstr(2, 1 + LABEL_WIDTH + NUMBER_WIDTH + 7 + 8 -
- len('Current'), 'Current')
+ if self._display_guests:
+ col_name = 'Guest Name'
+ else:
+ col_name = 'Event'
+ self.screen.addstr(2, 1, '%-40s %10s%7s %8s' %
+ (col_name, 'Total', '%Total', 'CurAvg/s'),
+ curses.A_STANDOUT)
self.screen.addstr(4, 1, 'Collecting data...')
self.screen.refresh()
@@ -984,16 +1073,25 @@ class Tui(object):
row = 3
self.screen.move(row, 0)
self.screen.clrtobot()
- stats = self.stats.get()
+ stats = self.stats.get(self._display_guests)
- def sortkey(x):
+ def sortCurAvg(x):
+ # sort by current events if available
if stats[x][1]:
return (-stats[x][1], -stats[x][0])
else:
return (0, -stats[x][0])
+
+ def sortTotal(x):
+ # sort by totals
+ return (0, -stats[x][0])
total = 0.
for val in stats.values():
total += val[0]
+ if self._sorting == SORT_DEFAULT:
+ sortkey = sortCurAvg
+ else:
+ sortkey = sortTotal
for key in sorted(stats.keys(), key=sortkey):
if row >= self.screen.getmaxyx()[0]:
@@ -1001,18 +1099,61 @@ class Tui(object):
values = stats[key]
if not values[0] and not values[1]:
break
- col = 1
- self.screen.addstr(row, col, key)
- col += LABEL_WIDTH
- self.screen.addstr(row, col, '%10d' % (values[0],))
- col += NUMBER_WIDTH
- self.screen.addstr(row, col, '%7.1f' % (values[0] * 100 / total,))
- col += 7
- if values[1] is not None:
- self.screen.addstr(row, col, '%8d' % (values[1] / sleeptime,))
+ if values[0] is not None:
+ cur = int(round(values[1] / sleeptime)) if values[1] else ''
+ if self._display_guests:
+ key = self.get_gname_from_pid(key)
+ self.screen.addstr(row, 1, '%-40s %10d%7.1f %8s' %
+ (key, values[0], values[0] * 100 / total,
+ cur))
row += 1
+ if row == 3:
+ self.screen.addstr(4, 1, 'No matching events reported yet')
self.screen.refresh()
+ def show_msg(self, text):
+ """Display message centered text and exit on key press"""
+ hint = 'Press any key to continue'
+ curses.cbreak()
+ self.screen.erase()
+ (x, term_width) = self.screen.getmaxyx()
+ row = 2
+ for line in text:
+ start = (term_width - len(line)) / 2
+ self.screen.addstr(row, start, line)
+ row += 1
+ self.screen.addstr(row + 1, (term_width - len(hint)) / 2, hint,
+ curses.A_STANDOUT)
+ self.screen.getkey()
+
+ def show_help_interactive(self):
+ """Display help with list of interactive commands"""
+ msg = (' b toggle events by guests (debugfs only, honors'
+ ' filters)',
+ ' c clear filter',
+ ' f filter by regular expression',
+ ' g filter by guest name',
+ ' h display interactive commands reference',
+ ' o toggle sorting order (Total vs CurAvg/s)',
+ ' p filter by PID',
+ ' q quit',
+ ' r reset stats',
+ ' s set update interval',
+ ' x toggle reporting of stats for individual child trace'
+ ' events',
+ 'Any other key refreshes statistics immediately')
+ curses.cbreak()
+ self.screen.erase()
+ self.screen.addstr(0, 0, "Interactive commands reference",
+ curses.A_BOLD)
+ self.screen.addstr(2, 0, "Press any key to exit", curses.A_STANDOUT)
+ row = 4
+ for line in msg:
+ self.screen.addstr(row, 0, line)
+ row += 1
+ self.screen.getkey()
+ self.refresh_header()
+
def show_filter_selection(self):
"""Draws filter selection mask.
@@ -1059,6 +1200,7 @@ class Tui(object):
'This might limit the shown data to the trace '
'statistics.')
self.screen.addstr(5, 0, msg)
+ self.print_all_gnames(7)
curses.echo()
self.screen.addstr(3, 0, "Pid [0 or pid]: ")
@@ -1077,10 +1219,40 @@ class Tui(object):
self.refresh_header(pid)
self.update_pid(pid)
break
-
except ValueError:
msg = '"' + str(pid) + '": Not a valid pid'
- continue
+
+ def show_set_update_interval(self):
+ """Draws update interval selection mask."""
+ msg = ''
+ while True:
+ self.screen.erase()
+ self.screen.addstr(0, 0, 'Set update interval (defaults to %fs).' %
+ DELAY_DEFAULT, curses.A_BOLD)
+ self.screen.addstr(4, 0, msg)
+ self.screen.addstr(2, 0, 'Change delay from %.1fs to ' %
+ self._delay_regular)
+ curses.echo()
+ val = self.screen.getstr()
+ curses.noecho()
+
+ try:
+ if len(val) > 0:
+ delay = float(val)
+ if delay < 0.1:
+ msg = '"' + str(val) + '": Value must be >=0.1'
+ continue
+ if delay > 25.5:
+ msg = '"' + str(val) + '": Value must be <=25.5'
+ continue
+ else:
+ delay = DELAY_DEFAULT
+ self._delay_regular = delay
+ break
+
+ except ValueError:
+ msg = '"' + str(val) + '": Invalid value'
+ self.refresh_header()
def show_vm_selection_by_guest_name(self):
"""Draws guest selection mask.
@@ -1098,6 +1270,7 @@ class Tui(object):
'This might limit the shown data to the trace '
'statistics.')
self.screen.addstr(5, 0, msg)
+ self.print_all_gnames(7)
curses.echo()
self.screen.addstr(3, 0, "Guest [ENTER or guest]: ")
gname = self.screen.getstr()
@@ -1110,7 +1283,7 @@ class Tui(object):
else:
pids = []
try:
- pids = get_pid_from_gname(gname)
+ pids = self.get_pid_from_gname(gname)
except:
msg = '"' + gname + '": Internal error while searching, ' \
'use pid filter instead'
@@ -1128,38 +1301,60 @@ class Tui(object):
def show_stats(self):
"""Refreshes the screen and processes user input."""
- sleeptime = DELAY_INITIAL
+ sleeptime = self._delay_initial
self.refresh_header()
+ start = 0.0 # result based on init value never appears on screen
while True:
- self.refresh_body(sleeptime)
+ self.refresh_body(time.time() - start)
curses.halfdelay(int(sleeptime * 10))
- sleeptime = DELAY_REGULAR
+ start = time.time()
+ sleeptime = self._delay_regular
try:
char = self.screen.getkey()
- if char == 'x':
+ if char == 'b':
+ self._display_guests = not self._display_guests
+ if self.stats.toggle_display_guests(self._display_guests):
+ self.show_msg(['Command not available with tracepoints'
+ ' enabled', 'Restart with debugfs only '
+ '(see option \'-d\') and try again!'])
+ self._display_guests = not self._display_guests
self.refresh_header()
- self.update_drilldown()
- sleeptime = DELAY_INITIAL
- if char == 'q':
- break
if char == 'c':
self.stats.fields_filter = DEFAULT_REGEX
self.refresh_header(0)
self.update_pid(0)
- sleeptime = DELAY_INITIAL
if char == 'f':
+ curses.curs_set(1)
self.show_filter_selection()
- sleeptime = DELAY_INITIAL
+ curses.curs_set(0)
+ sleeptime = self._delay_initial
if char == 'g':
+ curses.curs_set(1)
self.show_vm_selection_by_guest_name()
- sleeptime = DELAY_INITIAL
+ curses.curs_set(0)
+ sleeptime = self._delay_initial
+ if char == 'h':
+ self.show_help_interactive()
+ if char == 'o':
+ self._sorting = not self._sorting
if char == 'p':
+ curses.curs_set(1)
self.show_vm_selection_by_pid()
- sleeptime = DELAY_INITIAL
+ curses.curs_set(0)
+ sleeptime = self._delay_initial
+ if char == 'q':
+ break
if char == 'r':
- self.refresh_header()
self.stats.reset()
- sleeptime = DELAY_INITIAL
+ if char == 's':
+ curses.curs_set(1)
+ self.show_set_update_interval()
+ curses.curs_set(0)
+ sleeptime = self._delay_initial
+ if char == 'x':
+ self.update_drilldown()
+ # prevents display of current values on next refresh
+ self.stats.get()
except KeyboardInterrupt:
break
except curses.error:
@@ -1227,13 +1422,17 @@ Requirements:
the large number of files that are possibly opened.
Interactive Commands:
+ b toggle events by guests (debugfs only, honors filters)
c clear filter
f filter by regular expression
g filter by guest name
+ h display interactive commands reference
+ o toggle sorting order (Total vs CurAvg/s)
p filter by PID
q quit
- x toggle reporting of stats for individual child trace events
r reset stats
+ s set update interval
+ x toggle reporting of stats for individual child trace events
Press any other key to refresh statistics immediately.
"""
@@ -1246,7 +1445,7 @@ Press any other key to refresh statistics immediately.
def cb_guest_to_pid(option, opt, val, parser):
try:
- pids = get_pid_from_gname(val)
+ pids = Tui.get_pid_from_gname(val)
except:
raise optparse.OptionValueError('Error while searching for guest '
'"{}", use "-p" to specify a pid '
@@ -1268,6 +1467,13 @@ Press any other key to refresh statistics immediately.
dest='once',
help='run in batch mode for one second',
)
+ optparser.add_option('-i', '--debugfs-include-past',
+ action='store_true',
+ default=False,
+ dest='dbgfs_include_past',
+ help='include all available data on past events for '
+ 'debugfs',
+ )
optparser.add_option('-l', '--log',
action='store_true',
default=False,
@@ -1288,7 +1494,7 @@ Press any other key to refresh statistics immediately.
)
optparser.add_option('-f', '--fields',
action='store',
- default=None,
+ default=DEFAULT_REGEX,
dest='fields',
help='fields to display (regex)',
)
@@ -1311,20 +1517,6 @@ Press any other key to refresh statistics immediately.
return options
-def get_providers(options):
- """Returns a list of data providers depending on the passed options."""
- providers = []
-
- if options.tracepoints:
- providers.append(TracepointProvider())
- if options.debugfs:
- providers.append(DebugfsProvider())
- if len(providers) == 0:
- providers.append(TracepointProvider())
-
- return providers
-
-
def check_access(options):
"""Exits if the current user can't access all needed directories."""
if not os.path.exists('/sys/kernel/debug'):
@@ -1365,8 +1557,7 @@ def main():
sys.stderr.write('Did you use a (unsupported) tid instead of a pid?\n')
sys.exit('Specified pid does not exist.')
- providers = get_providers(options)
- stats = Stats(providers, options.pid, fields=options.fields)
+ stats = Stats(options)
if options.log:
log(stats)
diff --git a/tools/kvm/kvm_stat/kvm_stat.txt b/tools/kvm/kvm_stat/kvm_stat.txt
index 109431bdc63c..e5cf836be8a1 100644
--- a/tools/kvm/kvm_stat/kvm_stat.txt
+++ b/tools/kvm/kvm_stat/kvm_stat.txt
@@ -29,18 +29,26 @@ meaning of events.
INTERACTIVE COMMANDS
--------------------
[horizontal]
+*b*:: toggle events by guests (debugfs only, honors filters)
+
*c*:: clear filter
*f*:: filter by regular expression
*g*:: filter by guest name
+*h*:: display interactive commands reference
+
+*o*:: toggle sorting order (Total vs CurAvg/s)
+
*p*:: filter by PID
*q*:: quit
*r*:: reset stats
+*s*:: set update interval
+
*x*:: toggle reporting of stats for child trace events
Press any other key to refresh statistics immediately.
@@ -64,6 +72,10 @@ OPTIONS
--debugfs::
retrieve statistics from debugfs
+-i::
+--debugfs-include-past::
+ include all available data on past events for debugfs
+
-p<pid>::
--pid=<pid>::
limit statistics to one virtual machine (pid)
diff --git a/tools/lib/bpf/bpf.c b/tools/lib/bpf/bpf.c
index 4fe444b8092e..6e178987af8e 100644
--- a/tools/lib/bpf/bpf.c
+++ b/tools/lib/bpf/bpf.c
@@ -117,6 +117,28 @@ int bpf_load_program(enum bpf_prog_type type, const struct bpf_insn *insns,
return sys_bpf(BPF_PROG_LOAD, &attr, sizeof(attr));
}
+int bpf_verify_program(enum bpf_prog_type type, const struct bpf_insn *insns,
+ size_t insns_cnt, int strict_alignment,
+ const char *license, __u32 kern_version,
+ char *log_buf, size_t log_buf_sz)
+{
+ union bpf_attr attr;
+
+ bzero(&attr, sizeof(attr));
+ attr.prog_type = type;
+ attr.insn_cnt = (__u32)insns_cnt;
+ attr.insns = ptr_to_u64(insns);
+ attr.license = ptr_to_u64(license);
+ attr.log_buf = ptr_to_u64(log_buf);
+ attr.log_size = log_buf_sz;
+ attr.log_level = 2;
+ log_buf[0] = 0;
+ attr.kern_version = kern_version;
+ attr.prog_flags = strict_alignment ? BPF_F_STRICT_ALIGNMENT : 0;
+
+ return sys_bpf(BPF_PROG_LOAD, &attr, sizeof(attr));
+}
+
int bpf_map_update_elem(int fd, const void *key, const void *value,
__u64 flags)
{
diff --git a/tools/lib/bpf/bpf.h b/tools/lib/bpf/bpf.h
index edb4daeff7a5..972bd8333eb7 100644
--- a/tools/lib/bpf/bpf.h
+++ b/tools/lib/bpf/bpf.h
@@ -35,6 +35,10 @@ int bpf_load_program(enum bpf_prog_type type, const struct bpf_insn *insns,
size_t insns_cnt, const char *license,
__u32 kern_version, char *log_buf,
size_t log_buf_sz);
+int bpf_verify_program(enum bpf_prog_type type, const struct bpf_insn *insns,
+ size_t insns_cnt, int strict_alignment,
+ const char *license, __u32 kern_version,
+ char *log_buf, size_t log_buf_sz);
int bpf_map_update_elem(int fd, const void *key, const void *value,
__u64 flags);
diff --git a/tools/testing/selftests/bpf/Makefile b/tools/testing/selftests/bpf/Makefile
index 91edd0566237..f389b02d43a0 100644
--- a/tools/testing/selftests/bpf/Makefile
+++ b/tools/testing/selftests/bpf/Makefile
@@ -11,7 +11,8 @@ endif
CFLAGS += -Wall -O2 -I$(APIDIR) -I$(LIBDIR) -I$(GENDIR) $(GENFLAGS) -I../../../include
LDLIBS += -lcap -lelf
-TEST_GEN_PROGS = test_verifier test_tag test_maps test_lru_map test_lpm_map test_progs
+TEST_GEN_PROGS = test_verifier test_tag test_maps test_lru_map test_lpm_map test_progs \
+ test_align
TEST_GEN_FILES = test_pkt_access.o test_xdp.o test_l4lb.o test_tcp_estats.o
@@ -34,6 +35,7 @@ $(BPFOBJ): force
CLANG ?= clang
%.o: %.c
- $(CLANG) -I. -I../../../include/uapi -I../../../../samples/bpf/ \
+ $(CLANG) -I. -I./include/uapi -I../../../include/uapi \
+ -I../../../../samples/bpf/ \
-Wno-compare-distinct-pointer-types \
-O2 -target bpf -c $< -o $@
diff --git a/tools/testing/selftests/bpf/include/uapi/linux/types.h b/tools/testing/selftests/bpf/include/uapi/linux/types.h
new file mode 100644
index 000000000000..51841848fbfe
--- /dev/null
+++ b/tools/testing/selftests/bpf/include/uapi/linux/types.h
@@ -0,0 +1,22 @@
+#ifndef _UAPI_LINUX_TYPES_H
+#define _UAPI_LINUX_TYPES_H
+
+#include <asm-generic/int-ll64.h>
+
+/* copied from linux:include/uapi/linux/types.h */
+#define __bitwise
+typedef __u16 __bitwise __le16;
+typedef __u16 __bitwise __be16;
+typedef __u32 __bitwise __le32;
+typedef __u32 __bitwise __be32;
+typedef __u64 __bitwise __le64;
+typedef __u64 __bitwise __be64;
+
+typedef __u16 __bitwise __sum16;
+typedef __u32 __bitwise __wsum;
+
+#define __aligned_u64 __u64 __attribute__((aligned(8)))
+#define __aligned_be64 __be64 __attribute__((aligned(8)))
+#define __aligned_le64 __le64 __attribute__((aligned(8)))
+
+#endif /* _UAPI_LINUX_TYPES_H */
diff --git a/tools/testing/selftests/bpf/test_align.c b/tools/testing/selftests/bpf/test_align.c
new file mode 100644
index 000000000000..9644d4e069de
--- /dev/null
+++ b/tools/testing/selftests/bpf/test_align.c
@@ -0,0 +1,453 @@
+#include <asm/types.h>
+#include <linux/types.h>
+#include <stdint.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <errno.h>
+#include <string.h>
+#include <stddef.h>
+#include <stdbool.h>
+
+#include <linux/unistd.h>
+#include <linux/filter.h>
+#include <linux/bpf_perf_event.h>
+#include <linux/bpf.h>
+
+#include <bpf/bpf.h>
+
+#include "../../../include/linux/filter.h"
+
+#ifndef ARRAY_SIZE
+# define ARRAY_SIZE(x) (sizeof(x) / sizeof((x)[0]))
+#endif
+
+#define MAX_INSNS 512
+#define MAX_MATCHES 16
+
+struct bpf_align_test {
+ const char *descr;
+ struct bpf_insn insns[MAX_INSNS];
+ enum {
+ UNDEF,
+ ACCEPT,
+ REJECT
+ } result;
+ enum bpf_prog_type prog_type;
+ const char *matches[MAX_MATCHES];
+};
+
+static struct bpf_align_test tests[] = {
+ {
+ .descr = "mov",
+ .insns = {
+ BPF_MOV64_IMM(BPF_REG_3, 2),
+ BPF_MOV64_IMM(BPF_REG_3, 4),
+ BPF_MOV64_IMM(BPF_REG_3, 8),
+ BPF_MOV64_IMM(BPF_REG_3, 16),
+ BPF_MOV64_IMM(BPF_REG_3, 32),
+ BPF_MOV64_IMM(BPF_REG_0, 0),
+ BPF_EXIT_INSN(),
+ },
+ .prog_type = BPF_PROG_TYPE_SCHED_CLS,
+ .matches = {
+ "1: R1=ctx R3=imm2,min_value=2,max_value=2,min_align=2 R10=fp",
+ "2: R1=ctx R3=imm4,min_value=4,max_value=4,min_align=4 R10=fp",
+ "3: R1=ctx R3=imm8,min_value=8,max_value=8,min_align=8 R10=fp",
+ "4: R1=ctx R3=imm16,min_value=16,max_value=16,min_align=16 R10=fp",
+ "5: R1=ctx R3=imm32,min_value=32,max_value=32,min_align=32 R10=fp",
+ },
+ },
+ {
+ .descr = "shift",
+ .insns = {
+ BPF_MOV64_IMM(BPF_REG_3, 1),
+ BPF_ALU64_IMM(BPF_LSH, BPF_REG_3, 1),
+ BPF_ALU64_IMM(BPF_LSH, BPF_REG_3, 1),
+ BPF_ALU64_IMM(BPF_LSH, BPF_REG_3, 1),
+ BPF_ALU64_IMM(BPF_LSH, BPF_REG_3, 1),
+ BPF_ALU64_IMM(BPF_RSH, BPF_REG_3, 4),
+ BPF_MOV64_IMM(BPF_REG_4, 32),
+ BPF_ALU64_IMM(BPF_RSH, BPF_REG_4, 1),
+ BPF_ALU64_IMM(BPF_RSH, BPF_REG_4, 1),
+ BPF_ALU64_IMM(BPF_RSH, BPF_REG_4, 1),
+ BPF_ALU64_IMM(BPF_RSH, BPF_REG_4, 1),
+ BPF_MOV64_IMM(BPF_REG_0, 0),
+ BPF_EXIT_INSN(),
+ },
+ .prog_type = BPF_PROG_TYPE_SCHED_CLS,
+ .matches = {
+ "1: R1=ctx R3=imm1,min_value=1,max_value=1,min_align=1 R10=fp",
+ "2: R1=ctx R3=imm2,min_value=2,max_value=2,min_align=2 R10=fp",
+ "3: R1=ctx R3=imm4,min_value=4,max_value=4,min_align=4 R10=fp",
+ "4: R1=ctx R3=imm8,min_value=8,max_value=8,min_align=8 R10=fp",
+ "5: R1=ctx R3=imm16,min_value=16,max_value=16,min_align=16 R10=fp",
+ "6: R1=ctx R3=imm1,min_value=1,max_value=1,min_align=1 R10=fp",
+ "7: R1=ctx R3=imm1,min_value=1,max_value=1,min_align=1 R4=imm32,min_value=32,max_value=32,min_align=32 R10=fp",
+ "8: R1=ctx R3=imm1,min_value=1,max_value=1,min_align=1 R4=imm16,min_value=16,max_value=16,min_align=16 R10=fp",
+ "9: R1=ctx R3=imm1,min_value=1,max_value=1,min_align=1 R4=imm8,min_value=8,max_value=8,min_align=8 R10=fp",
+ "10: R1=ctx R3=imm1,min_value=1,max_value=1,min_align=1 R4=imm4,min_value=4,max_value=4,min_align=4 R10=fp",
+ "11: R1=ctx R3=imm1,min_value=1,max_value=1,min_align=1 R4=imm2,min_value=2,max_value=2,min_align=2 R10=fp",
+ },
+ },
+ {
+ .descr = "addsub",
+ .insns = {
+ BPF_MOV64_IMM(BPF_REG_3, 4),
+ BPF_ALU64_IMM(BPF_ADD, BPF_REG_3, 4),
+ BPF_ALU64_IMM(BPF_ADD, BPF_REG_3, 2),
+ BPF_MOV64_IMM(BPF_REG_4, 8),
+ BPF_ALU64_IMM(BPF_ADD, BPF_REG_4, 4),
+ BPF_ALU64_IMM(BPF_ADD, BPF_REG_4, 2),
+ BPF_MOV64_IMM(BPF_REG_0, 0),
+ BPF_EXIT_INSN(),
+ },
+ .prog_type = BPF_PROG_TYPE_SCHED_CLS,
+ .matches = {
+ "1: R1=ctx R3=imm4,min_value=4,max_value=4,min_align=4 R10=fp",
+ "2: R1=ctx R3=imm8,min_value=8,max_value=8,min_align=4 R10=fp",
+ "3: R1=ctx R3=imm10,min_value=10,max_value=10,min_align=2 R10=fp",
+ "4: R1=ctx R3=imm10,min_value=10,max_value=10,min_align=2 R4=imm8,min_value=8,max_value=8,min_align=8 R10=fp",
+ "5: R1=ctx R3=imm10,min_value=10,max_value=10,min_align=2 R4=imm12,min_value=12,max_value=12,min_align=4 R10=fp",
+ "6: R1=ctx R3=imm10,min_value=10,max_value=10,min_align=2 R4=imm14,min_value=14,max_value=14,min_align=2 R10=fp",
+ },
+ },
+ {
+ .descr = "mul",
+ .insns = {
+ BPF_MOV64_IMM(BPF_REG_3, 7),
+ BPF_ALU64_IMM(BPF_MUL, BPF_REG_3, 1),
+ BPF_ALU64_IMM(BPF_MUL, BPF_REG_3, 2),
+ BPF_ALU64_IMM(BPF_MUL, BPF_REG_3, 4),
+ BPF_MOV64_IMM(BPF_REG_0, 0),
+ BPF_EXIT_INSN(),
+ },
+ .prog_type = BPF_PROG_TYPE_SCHED_CLS,
+ .matches = {
+ "1: R1=ctx R3=imm7,min_value=7,max_value=7,min_align=1 R10=fp",
+ "2: R1=ctx R3=imm7,min_value=7,max_value=7,min_align=1 R10=fp",
+ "3: R1=ctx R3=imm14,min_value=14,max_value=14,min_align=2 R10=fp",
+ "4: R1=ctx R3=imm56,min_value=56,max_value=56,min_align=4 R10=fp",
+ },
+ },
+
+#define PREP_PKT_POINTERS \
+ BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1, \
+ offsetof(struct __sk_buff, data)), \
+ BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1, \
+ offsetof(struct __sk_buff, data_end))
+
+#define LOAD_UNKNOWN(DST_REG) \
+ PREP_PKT_POINTERS, \
+ BPF_MOV64_REG(BPF_REG_0, BPF_REG_2), \
+ BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 8), \
+ BPF_JMP_REG(BPF_JGE, BPF_REG_3, BPF_REG_0, 1), \
+ BPF_EXIT_INSN(), \
+ BPF_LDX_MEM(BPF_B, DST_REG, BPF_REG_2, 0)
+
+ {
+ .descr = "unknown shift",
+ .insns = {
+ LOAD_UNKNOWN(BPF_REG_3),
+ BPF_ALU64_IMM(BPF_LSH, BPF_REG_3, 1),
+ BPF_ALU64_IMM(BPF_LSH, BPF_REG_3, 1),
+ BPF_ALU64_IMM(BPF_LSH, BPF_REG_3, 1),
+ BPF_ALU64_IMM(BPF_LSH, BPF_REG_3, 1),
+ LOAD_UNKNOWN(BPF_REG_4),
+ BPF_ALU64_IMM(BPF_LSH, BPF_REG_4, 5),
+ BPF_ALU64_IMM(BPF_RSH, BPF_REG_4, 1),
+ BPF_ALU64_IMM(BPF_RSH, BPF_REG_4, 1),
+ BPF_ALU64_IMM(BPF_RSH, BPF_REG_4, 1),
+ BPF_ALU64_IMM(BPF_RSH, BPF_REG_4, 1),
+ BPF_MOV64_IMM(BPF_REG_0, 0),
+ BPF_EXIT_INSN(),
+ },
+ .prog_type = BPF_PROG_TYPE_SCHED_CLS,
+ .matches = {
+ "7: R0=pkt(id=0,off=8,r=8) R1=ctx R2=pkt(id=0,off=0,r=8) R3=inv56 R10=fp",
+ "8: R0=pkt(id=0,off=8,r=8) R1=ctx R2=pkt(id=0,off=0,r=8) R3=inv55,min_align=2 R10=fp",
+ "9: R0=pkt(id=0,off=8,r=8) R1=ctx R2=pkt(id=0,off=0,r=8) R3=inv54,min_align=4 R10=fp",
+ "10: R0=pkt(id=0,off=8,r=8) R1=ctx R2=pkt(id=0,off=0,r=8) R3=inv53,min_align=8 R10=fp",
+ "11: R0=pkt(id=0,off=8,r=8) R1=ctx R2=pkt(id=0,off=0,r=8) R3=inv52,min_align=16 R10=fp",
+ "18: R0=pkt(id=0,off=8,r=8) R1=ctx R2=pkt(id=0,off=0,r=8) R3=pkt_end R4=inv56 R10=fp",
+ "19: R0=pkt(id=0,off=8,r=8) R1=ctx R2=pkt(id=0,off=0,r=8) R3=pkt_end R4=inv51,min_align=32 R10=fp",
+ "20: R0=pkt(id=0,off=8,r=8) R1=ctx R2=pkt(id=0,off=0,r=8) R3=pkt_end R4=inv52,min_align=16 R10=fp",
+ "21: R0=pkt(id=0,off=8,r=8) R1=ctx R2=pkt(id=0,off=0,r=8) R3=pkt_end R4=inv53,min_align=8 R10=fp",
+ "22: R0=pkt(id=0,off=8,r=8) R1=ctx R2=pkt(id=0,off=0,r=8) R3=pkt_end R4=inv54,min_align=4 R10=fp",
+ "23: R0=pkt(id=0,off=8,r=8) R1=ctx R2=pkt(id=0,off=0,r=8) R3=pkt_end R4=inv55,min_align=2 R10=fp",
+ },
+ },
+ {
+ .descr = "unknown mul",
+ .insns = {
+ LOAD_UNKNOWN(BPF_REG_3),
+ BPF_MOV64_REG(BPF_REG_4, BPF_REG_3),
+ BPF_ALU64_IMM(BPF_MUL, BPF_REG_4, 1),
+ BPF_MOV64_REG(BPF_REG_4, BPF_REG_3),
+ BPF_ALU64_IMM(BPF_MUL, BPF_REG_4, 2),
+ BPF_MOV64_REG(BPF_REG_4, BPF_REG_3),
+ BPF_ALU64_IMM(BPF_MUL, BPF_REG_4, 4),
+ BPF_MOV64_REG(BPF_REG_4, BPF_REG_3),
+ BPF_ALU64_IMM(BPF_MUL, BPF_REG_4, 8),
+ BPF_ALU64_IMM(BPF_MUL, BPF_REG_4, 2),
+ BPF_MOV64_IMM(BPF_REG_0, 0),
+ BPF_EXIT_INSN(),
+ },
+ .prog_type = BPF_PROG_TYPE_SCHED_CLS,
+ .matches = {
+ "7: R0=pkt(id=0,off=8,r=8) R1=ctx R2=pkt(id=0,off=0,r=8) R3=inv56 R10=fp",
+ "8: R0=pkt(id=0,off=8,r=8) R1=ctx R2=pkt(id=0,off=0,r=8) R3=inv56 R4=inv56 R10=fp",
+ "9: R0=pkt(id=0,off=8,r=8) R1=ctx R2=pkt(id=0,off=0,r=8) R3=inv56 R4=inv55,min_align=1 R10=fp",
+ "10: R0=pkt(id=0,off=8,r=8) R1=ctx R2=pkt(id=0,off=0,r=8) R3=inv56 R4=inv56 R10=fp",
+ "11: R0=pkt(id=0,off=8,r=8) R1=ctx R2=pkt(id=0,off=0,r=8) R3=inv56 R4=inv54,min_align=2 R10=fp",
+ "12: R0=pkt(id=0,off=8,r=8) R1=ctx R2=pkt(id=0,off=0,r=8) R3=inv56 R4=inv56 R10=fp",
+ "13: R0=pkt(id=0,off=8,r=8) R1=ctx R2=pkt(id=0,off=0,r=8) R3=inv56 R4=inv53,min_align=4 R10=fp",
+ "14: R0=pkt(id=0,off=8,r=8) R1=ctx R2=pkt(id=0,off=0,r=8) R3=inv56 R4=inv56 R10=fp",
+ "15: R0=pkt(id=0,off=8,r=8) R1=ctx R2=pkt(id=0,off=0,r=8) R3=inv56 R4=inv52,min_align=8 R10=fp",
+ "16: R0=pkt(id=0,off=8,r=8) R1=ctx R2=pkt(id=0,off=0,r=8) R3=inv56 R4=inv50,min_align=8 R10=fp"
+ },
+ },
+ {
+ .descr = "packet const offset",
+ .insns = {
+ PREP_PKT_POINTERS,
+ BPF_MOV64_REG(BPF_REG_5, BPF_REG_2),
+
+ BPF_MOV64_IMM(BPF_REG_0, 0),
+
+ /* Skip over ethernet header. */
+ BPF_ALU64_IMM(BPF_ADD, BPF_REG_5, 14),
+ BPF_MOV64_REG(BPF_REG_4, BPF_REG_5),
+ BPF_ALU64_IMM(BPF_ADD, BPF_REG_4, 4),
+ BPF_JMP_REG(BPF_JGE, BPF_REG_3, BPF_REG_4, 1),
+ BPF_EXIT_INSN(),
+
+ BPF_LDX_MEM(BPF_B, BPF_REG_4, BPF_REG_5, 0),
+ BPF_LDX_MEM(BPF_B, BPF_REG_4, BPF_REG_5, 1),
+ BPF_LDX_MEM(BPF_B, BPF_REG_4, BPF_REG_5, 2),
+ BPF_LDX_MEM(BPF_B, BPF_REG_4, BPF_REG_5, 3),
+ BPF_LDX_MEM(BPF_H, BPF_REG_4, BPF_REG_5, 0),
+ BPF_LDX_MEM(BPF_H, BPF_REG_4, BPF_REG_5, 2),
+ BPF_LDX_MEM(BPF_W, BPF_REG_4, BPF_REG_5, 0),
+
+ BPF_MOV64_IMM(BPF_REG_0, 0),
+ BPF_EXIT_INSN(),
+ },
+ .prog_type = BPF_PROG_TYPE_SCHED_CLS,
+ .matches = {
+ "4: R0=imm0,min_value=0,max_value=0,min_align=2147483648 R1=ctx R2=pkt(id=0,off=0,r=0) R3=pkt_end R5=pkt(id=0,off=0,r=0) R10=fp",
+ "5: R0=imm0,min_value=0,max_value=0,min_align=2147483648 R1=ctx R2=pkt(id=0,off=0,r=0) R3=pkt_end R5=pkt(id=0,off=14,r=0) R10=fp",
+ "6: R0=imm0,min_value=0,max_value=0,min_align=2147483648 R1=ctx R2=pkt(id=0,off=0,r=0) R3=pkt_end R4=pkt(id=0,off=14,r=0) R5=pkt(id=0,off=14,r=0) R10=fp",
+ "10: R0=imm0,min_value=0,max_value=0,min_align=2147483648 R1=ctx R2=pkt(id=0,off=0,r=18) R3=pkt_end R4=inv56 R5=pkt(id=0,off=14,r=18) R10=fp",
+ "14: R0=imm0,min_value=0,max_value=0,min_align=2147483648 R1=ctx R2=pkt(id=0,off=0,r=18) R3=pkt_end R4=inv48 R5=pkt(id=0,off=14,r=18) R10=fp",
+ "15: R0=imm0,min_value=0,max_value=0,min_align=2147483648 R1=ctx R2=pkt(id=0,off=0,r=18) R3=pkt_end R4=inv48 R5=pkt(id=0,off=14,r=18) R10=fp",
+ },
+ },
+ {
+ .descr = "packet variable offset",
+ .insns = {
+ LOAD_UNKNOWN(BPF_REG_6),
+ BPF_ALU64_IMM(BPF_LSH, BPF_REG_6, 2),
+
+ /* First, add a constant to the R5 packet pointer,
+ * then a variable with a known alignment.
+ */
+ BPF_MOV64_REG(BPF_REG_5, BPF_REG_2),
+ BPF_ALU64_IMM(BPF_ADD, BPF_REG_5, 14),
+ BPF_ALU64_REG(BPF_ADD, BPF_REG_5, BPF_REG_6),
+ BPF_MOV64_REG(BPF_REG_4, BPF_REG_5),
+ BPF_ALU64_IMM(BPF_ADD, BPF_REG_4, 4),
+ BPF_JMP_REG(BPF_JGE, BPF_REG_3, BPF_REG_4, 1),
+ BPF_EXIT_INSN(),
+ BPF_LDX_MEM(BPF_W, BPF_REG_4, BPF_REG_5, 0),
+
+ /* Now, test in the other direction. Adding first
+ * the variable offset to R5, then the constant.
+ */
+ BPF_MOV64_REG(BPF_REG_5, BPF_REG_2),
+ BPF_ALU64_REG(BPF_ADD, BPF_REG_5, BPF_REG_6),
+ BPF_ALU64_IMM(BPF_ADD, BPF_REG_5, 14),
+ BPF_MOV64_REG(BPF_REG_4, BPF_REG_5),
+ BPF_ALU64_IMM(BPF_ADD, BPF_REG_4, 4),
+ BPF_JMP_REG(BPF_JGE, BPF_REG_3, BPF_REG_4, 1),
+ BPF_EXIT_INSN(),
+ BPF_LDX_MEM(BPF_W, BPF_REG_4, BPF_REG_5, 0),
+
+ /* Test multiple accumulations of unknown values
+ * into a packet pointer.
+ */
+ BPF_MOV64_REG(BPF_REG_5, BPF_REG_2),
+ BPF_ALU64_IMM(BPF_ADD, BPF_REG_5, 14),
+ BPF_ALU64_REG(BPF_ADD, BPF_REG_5, BPF_REG_6),
+ BPF_ALU64_IMM(BPF_ADD, BPF_REG_5, 4),
+ BPF_ALU64_REG(BPF_ADD, BPF_REG_5, BPF_REG_6),
+ BPF_MOV64_REG(BPF_REG_4, BPF_REG_5),
+ BPF_ALU64_IMM(BPF_ADD, BPF_REG_4, 4),
+ BPF_JMP_REG(BPF_JGE, BPF_REG_3, BPF_REG_4, 1),
+ BPF_EXIT_INSN(),
+ BPF_LDX_MEM(BPF_W, BPF_REG_4, BPF_REG_5, 0),
+
+ BPF_MOV64_IMM(BPF_REG_0, 0),
+ BPF_EXIT_INSN(),
+ },
+ .prog_type = BPF_PROG_TYPE_SCHED_CLS,
+ .matches = {
+ /* Calculated offset in R6 has unknown value, but known
+ * alignment of 4.
+ */
+ "8: R0=pkt(id=0,off=8,r=8) R1=ctx R2=pkt(id=0,off=0,r=8) R3=pkt_end R6=inv54,min_align=4 R10=fp",
+
+ /* Offset is added to packet pointer R5, resulting in known
+ * auxiliary alignment and offset.
+ */
+ "11: R0=pkt(id=0,off=8,r=8) R1=ctx R2=pkt(id=0,off=0,r=8) R3=pkt_end R5=pkt(id=1,off=0,r=0),aux_off=14,aux_off_align=4 R6=inv54,min_align=4 R10=fp",
+
+ /* At the time the word size load is performed from R5,
+ * it's total offset is NET_IP_ALIGN + reg->off (0) +
+ * reg->aux_off (14) which is 16. Then the variable
+ * offset is considered using reg->aux_off_align which
+ * is 4 and meets the load's requirements.
+ */
+ "15: R0=pkt(id=0,off=8,r=8) R1=ctx R2=pkt(id=0,off=0,r=8) R3=pkt_end R4=pkt(id=1,off=4,r=4),aux_off=14,aux_off_align=4 R5=pkt(id=1,off=0,r=4),aux_off=14,aux_off_align=4 R6=inv54,min_align=4 R10=fp",
+
+
+ /* Variable offset is added to R5 packet pointer,
+ * resulting in auxiliary alignment of 4.
+ */
+ "18: R0=pkt(id=0,off=8,r=8) R1=ctx R2=pkt(id=0,off=0,r=8) R3=pkt_end R4=inv,aux_off=14,aux_off_align=4 R5=pkt(id=2,off=0,r=0),aux_off_align=4 R6=inv54,min_align=4 R10=fp",
+
+ /* Constant offset is added to R5, resulting in
+ * reg->off of 14.
+ */
+ "19: R0=pkt(id=0,off=8,r=8) R1=ctx R2=pkt(id=0,off=0,r=8) R3=pkt_end R4=inv,aux_off=14,aux_off_align=4 R5=pkt(id=2,off=14,r=0),aux_off_align=4 R6=inv54,min_align=4 R10=fp",
+
+ /* At the time the word size load is performed from R5,
+ * it's total offset is NET_IP_ALIGN + reg->off (14) which
+ * is 16. Then the variable offset is considered using
+ * reg->aux_off_align which is 4 and meets the load's
+ * requirements.
+ */
+ "23: R0=pkt(id=0,off=8,r=8) R1=ctx R2=pkt(id=0,off=0,r=8) R3=pkt_end R4=pkt(id=2,off=18,r=18),aux_off_align=4 R5=pkt(id=2,off=14,r=18),aux_off_align=4 R6=inv54,min_align=4 R10=fp",
+
+ /* Constant offset is added to R5 packet pointer,
+ * resulting in reg->off value of 14.
+ */
+ "26: R0=pkt(id=0,off=8,r=8) R1=ctx R2=pkt(id=0,off=0,r=8) R3=pkt_end R4=inv,aux_off_align=4 R5=pkt(id=0,off=14,r=8) R6=inv54,min_align=4 R10=fp",
+ /* Variable offset is added to R5, resulting in an
+ * auxiliary offset of 14, and an auxiliary alignment of 4.
+ */
+ "27: R0=pkt(id=0,off=8,r=8) R1=ctx R2=pkt(id=0,off=0,r=8) R3=pkt_end R4=inv,aux_off_align=4 R5=pkt(id=3,off=0,r=0),aux_off=14,aux_off_align=4 R6=inv54,min_align=4 R10=fp",
+ /* Constant is added to R5 again, setting reg->off to 4. */
+ "28: R0=pkt(id=0,off=8,r=8) R1=ctx R2=pkt(id=0,off=0,r=8) R3=pkt_end R4=inv,aux_off_align=4 R5=pkt(id=3,off=4,r=0),aux_off=14,aux_off_align=4 R6=inv54,min_align=4 R10=fp",
+ /* And once more we add a variable, which causes an accumulation
+ * of reg->off into reg->aux_off_align, with resulting value of
+ * 18. The auxiliary alignment stays at 4.
+ */
+ "29: R0=pkt(id=0,off=8,r=8) R1=ctx R2=pkt(id=0,off=0,r=8) R3=pkt_end R4=inv,aux_off_align=4 R5=pkt(id=4,off=0,r=0),aux_off=18,aux_off_align=4 R6=inv54,min_align=4 R10=fp",
+ /* At the time the word size load is performed from R5,
+ * it's total offset is NET_IP_ALIGN + reg->off (0) +
+ * reg->aux_off (18) which is 20. Then the variable offset
+ * is considered using reg->aux_off_align which is 4 and meets
+ * the load's requirements.
+ */
+ "33: R0=pkt(id=0,off=8,r=8) R1=ctx R2=pkt(id=0,off=0,r=8) R3=pkt_end R4=pkt(id=4,off=4,r=4),aux_off=18,aux_off_align=4 R5=pkt(id=4,off=0,r=4),aux_off=18,aux_off_align=4 R6=inv54,min_align=4 R10=fp",
+ },
+ },
+};
+
+static int probe_filter_length(const struct bpf_insn *fp)
+{
+ int len;
+
+ for (len = MAX_INSNS - 1; len > 0; --len)
+ if (fp[len].code != 0 || fp[len].imm != 0)
+ break;
+ return len + 1;
+}
+
+static char bpf_vlog[32768];
+
+static int do_test_single(struct bpf_align_test *test)
+{
+ struct bpf_insn *prog = test->insns;
+ int prog_type = test->prog_type;
+ int prog_len, i;
+ int fd_prog;
+ int ret;
+
+ prog_len = probe_filter_length(prog);
+ fd_prog = bpf_verify_program(prog_type ? : BPF_PROG_TYPE_SOCKET_FILTER,
+ prog, prog_len, 1, "GPL", 0,
+ bpf_vlog, sizeof(bpf_vlog));
+ if (fd_prog < 0) {
+ printf("Failed to load program.\n");
+ printf("%s", bpf_vlog);
+ ret = 1;
+ } else {
+ ret = 0;
+ for (i = 0; i < MAX_MATCHES; i++) {
+ const char *t, *m = test->matches[i];
+
+ if (!m)
+ break;
+ t = strstr(bpf_vlog, m);
+ if (!t) {
+ printf("Failed to find match: %s\n", m);
+ ret = 1;
+ printf("%s", bpf_vlog);
+ break;
+ }
+ }
+ close(fd_prog);
+ }
+ return ret;
+}
+
+static int do_test(unsigned int from, unsigned int to)
+{
+ int all_pass = 0;
+ int all_fail = 0;
+ unsigned int i;
+
+ for (i = from; i < to; i++) {
+ struct bpf_align_test *test = &tests[i];
+ int fail;
+
+ printf("Test %3d: %s ... ",
+ i, test->descr);
+ fail = do_test_single(test);
+ if (fail) {
+ all_fail++;
+ printf("FAIL\n");
+ } else {
+ all_pass++;
+ printf("PASS\n");
+ }
+ }
+ printf("Results: %d pass %d fail\n",
+ all_pass, all_fail);
+ return 0;
+}
+
+int main(int argc, char **argv)
+{
+ unsigned int from = 0, to = ARRAY_SIZE(tests);
+
+ if (argc == 3) {
+ unsigned int l = atoi(argv[argc - 2]);
+ unsigned int u = atoi(argv[argc - 1]);
+
+ if (l < to && u < to) {
+ from = l;
+ to = u + 1;
+ }
+ } else if (argc == 2) {
+ unsigned int t = atoi(argv[argc - 1]);
+
+ if (t < to) {
+ from = t;
+ to = t + 1;
+ }
+ }
+ return do_test(from, to);
+}
diff --git a/tools/testing/selftests/bpf/test_pkt_access.c b/tools/testing/selftests/bpf/test_pkt_access.c
index 39387bb7e08c..6e11ba11709e 100644
--- a/tools/testing/selftests/bpf/test_pkt_access.c
+++ b/tools/testing/selftests/bpf/test_pkt_access.c
@@ -5,6 +5,7 @@
* License as published by the Free Software Foundation.
*/
#include <stddef.h>
+#include <string.h>
#include <linux/bpf.h>
#include <linux/if_ether.h>
#include <linux/if_packet.h>
diff --git a/tools/testing/selftests/ftrace/ftracetest b/tools/testing/selftests/ftrace/ftracetest
index 32e6211e1c6e..717581145cfc 100755
--- a/tools/testing/selftests/ftrace/ftracetest
+++ b/tools/testing/selftests/ftrace/ftracetest
@@ -58,7 +58,7 @@ parse_opts() { # opts
;;
--verbose|-v|-vv)
VERBOSE=$((VERBOSE + 1))
- [ $1 == '-vv' ] && VERBOSE=$((VERBOSE + 1))
+ [ $1 = '-vv' ] && VERBOSE=$((VERBOSE + 1))
shift 1
;;
--debug|-d)
diff --git a/tools/testing/selftests/ftrace/test.d/ftrace/func_event_triggers.tc b/tools/testing/selftests/ftrace/test.d/ftrace/func_event_triggers.tc
index 07bb3e5930b4..aa31368851c9 100644
--- a/tools/testing/selftests/ftrace/test.d/ftrace/func_event_triggers.tc
+++ b/tools/testing/selftests/ftrace/test.d/ftrace/func_event_triggers.tc
@@ -48,7 +48,7 @@ test_event_enabled() {
e=`cat $EVENT_ENABLE`
if [ "$e" != $val ]; then
echo "Expected $val but found $e"
- exit -1
+ exit 1
fi
}
diff --git a/tools/testing/selftests/ftrace/test.d/functions b/tools/testing/selftests/ftrace/test.d/functions
index 9aec6fcb7729..f2019b37370d 100644
--- a/tools/testing/selftests/ftrace/test.d/functions
+++ b/tools/testing/selftests/ftrace/test.d/functions
@@ -34,10 +34,10 @@ reset_ftrace_filter() { # reset all triggers in set_ftrace_filter
echo > set_ftrace_filter
grep -v '^#' set_ftrace_filter | while read t; do
tr=`echo $t | cut -d: -f2`
- if [ "$tr" == "" ]; then
+ if [ "$tr" = "" ]; then
continue
fi
- if [ $tr == "enable_event" -o $tr == "disable_event" ]; then
+ if [ $tr = "enable_event" -o $tr = "disable_event" ]; then
tr=`echo $t | cut -d: -f1-4`
limit=`echo $t | cut -d: -f5`
else
diff --git a/tools/testing/selftests/ftrace/test.d/instances/instance-event.tc b/tools/testing/selftests/ftrace/test.d/instances/instance-event.tc
index 4c5a061a5b4e..c73db7863adb 100644
--- a/tools/testing/selftests/ftrace/test.d/instances/instance-event.tc
+++ b/tools/testing/selftests/ftrace/test.d/instances/instance-event.tc
@@ -75,9 +75,13 @@ rmdir foo
if [ -d foo ]; then
fail "foo still exists"
fi
-exit 0
-
+mkdir foo
+echo "schedule:enable_event:sched:sched_switch" > foo/set_ftrace_filter
+rmdir foo
+if [ -d foo ]; then
+ fail "foo still exists"
+fi
instance_slam() {
diff --git a/tools/testing/selftests/powerpc/tm/.gitignore b/tools/testing/selftests/powerpc/tm/.gitignore
index 427621792229..2f1f7b013293 100644
--- a/tools/testing/selftests/powerpc/tm/.gitignore
+++ b/tools/testing/selftests/powerpc/tm/.gitignore
@@ -11,3 +11,4 @@ tm-signal-context-chk-fpu
tm-signal-context-chk-gpr
tm-signal-context-chk-vmx
tm-signal-context-chk-vsx
+tm-vmx-unavail
diff --git a/tools/testing/selftests/powerpc/tm/Makefile b/tools/testing/selftests/powerpc/tm/Makefile
index 5576ee6a51f2..958c11c14acd 100644
--- a/tools/testing/selftests/powerpc/tm/Makefile
+++ b/tools/testing/selftests/powerpc/tm/Makefile
@@ -2,7 +2,8 @@ SIGNAL_CONTEXT_CHK_TESTS := tm-signal-context-chk-gpr tm-signal-context-chk-fpu
tm-signal-context-chk-vmx tm-signal-context-chk-vsx
TEST_GEN_PROGS := tm-resched-dscr tm-syscall tm-signal-msr-resv tm-signal-stack \
- tm-vmxcopy tm-fork tm-tar tm-tmspr $(SIGNAL_CONTEXT_CHK_TESTS)
+ tm-vmxcopy tm-fork tm-tar tm-tmspr tm-vmx-unavail \
+ $(SIGNAL_CONTEXT_CHK_TESTS)
include ../../lib.mk
@@ -13,6 +14,7 @@ CFLAGS += -mhtm
$(OUTPUT)/tm-syscall: tm-syscall-asm.S
$(OUTPUT)/tm-syscall: CFLAGS += -I../../../../../usr/include
$(OUTPUT)/tm-tmspr: CFLAGS += -pthread
+$(OUTPUT)/tm-vmx-unavail: CFLAGS += -pthread -m64
SIGNAL_CONTEXT_CHK_TESTS := $(patsubst %,$(OUTPUT)/%,$(SIGNAL_CONTEXT_CHK_TESTS))
$(SIGNAL_CONTEXT_CHK_TESTS): tm-signal.S
diff --git a/tools/testing/selftests/powerpc/tm/tm-vmx-unavail.c b/tools/testing/selftests/powerpc/tm/tm-vmx-unavail.c
new file mode 100644
index 000000000000..137185ba4937
--- /dev/null
+++ b/tools/testing/selftests/powerpc/tm/tm-vmx-unavail.c
@@ -0,0 +1,118 @@
+/*
+ * Copyright 2017, Michael Neuling, IBM Corp.
+ * Licensed under GPLv2.
+ * Original: Breno Leitao <brenohl@br.ibm.com> &
+ * Gustavo Bueno Romero <gromero@br.ibm.com>
+ * Edited: Michael Neuling
+ *
+ * Force VMX unavailable during a transaction and see if it corrupts
+ * the checkpointed VMX register state after the abort.
+ */
+
+#include <inttypes.h>
+#include <htmintrin.h>
+#include <string.h>
+#include <stdlib.h>
+#include <stdio.h>
+#include <pthread.h>
+#include <sys/mman.h>
+#include <unistd.h>
+#include <pthread.h>
+
+#include "tm.h"
+#include "utils.h"
+
+int passed;
+
+void *worker(void *unused)
+{
+ __int128 vmx0;
+ uint64_t texasr;
+
+ asm goto (
+ "li 3, 1;" /* Stick non-zero value in VMX0 */
+ "std 3, 0(%[vmx0_ptr]);"
+ "lvx 0, 0, %[vmx0_ptr];"
+
+ /* Wait here a bit so we get scheduled out 255 times */
+ "lis 3, 0x3fff;"
+ "1: ;"
+ "addi 3, 3, -1;"
+ "cmpdi 3, 0;"
+ "bne 1b;"
+
+ /* Kernel will hopefully turn VMX off now */
+
+ "tbegin. ;"
+ "beq failure;"
+
+ /* Cause VMX unavail. Any VMX instruction */
+ "vaddcuw 0,0,0;"
+
+ "tend. ;"
+ "b %l[success];"
+
+ /* Check VMX0 sanity after abort */
+ "failure: ;"
+ "lvx 1, 0, %[vmx0_ptr];"
+ "vcmpequb. 2, 0, 1;"
+ "bc 4, 24, %l[value_mismatch];"
+ "b %l[value_match];"
+ :
+ : [vmx0_ptr] "r"(&vmx0)
+ : "r3"
+ : success, value_match, value_mismatch
+ );
+
+ /* HTM aborted and VMX0 is corrupted */
+value_mismatch:
+ texasr = __builtin_get_texasr();
+
+ printf("\n\n==============\n\n");
+ printf("Failure with error: %lx\n", _TEXASR_FAILURE_CODE(texasr));
+ printf("Summary error : %lx\n", _TEXASR_FAILURE_SUMMARY(texasr));
+ printf("TFIAR exact : %lx\n\n", _TEXASR_TFIAR_EXACT(texasr));
+
+ passed = 0;
+ return NULL;
+
+ /* HTM aborted but VMX0 is correct */
+value_match:
+// printf("!");
+ return NULL;
+
+success:
+// printf(".");
+ return NULL;
+}
+
+int tm_vmx_unavail_test()
+{
+ int threads;
+ pthread_t *thread;
+
+ SKIP_IF(!have_htm());
+
+ passed = 1;
+
+ threads = sysconf(_SC_NPROCESSORS_ONLN) * 4;
+ thread = malloc(sizeof(pthread_t)*threads);
+ if (!thread)
+ return EXIT_FAILURE;
+
+ for (uint64_t i = 0; i < threads; i++)
+ pthread_create(&thread[i], NULL, &worker, NULL);
+
+ for (uint64_t i = 0; i < threads; i++)
+ pthread_join(thread[i], NULL);
+
+ free(thread);
+
+ return passed ? EXIT_SUCCESS : EXIT_FAILURE;
+}
+
+
+int main(int argc, char **argv)
+{
+ return test_harness(tm_vmx_unavail_test, "tm_vmx_unavail_test");
+}
generated by cgit v1.2.3 (git 2.39.0) at 2025-08-13 20:14:19 +0300