diff options
Diffstat (limited to 'tools')
26 files changed, 1078 insertions, 131 deletions
diff --git a/tools/Makefile b/tools/Makefile index 00caacd3ed92..c8a90d01dd8e 100644 --- a/tools/Makefile +++ b/tools/Makefile @@ -86,10 +86,13 @@ tmon: FORCE freefall: FORCE $(call descend,laptop/$@) +kvm_stat: FORCE + $(call descend,kvm/$@) + all: acpi cgroup cpupower gpio hv firewire lguest \ perf selftests turbostat usb \ virtio vm net x86_energy_perf_policy \ - tmon freefall objtool + tmon freefall objtool kvm_stat acpi_install: $(call descend,power/$(@:_install=),install) diff --git a/tools/arch/s390/include/uapi/asm/kvm.h b/tools/arch/s390/include/uapi/asm/kvm.h index a2ffec4139ad..7f4fd65e9208 100644 --- a/tools/arch/s390/include/uapi/asm/kvm.h +++ b/tools/arch/s390/include/uapi/asm/kvm.h @@ -131,7 +131,8 @@ struct kvm_s390_vm_cpu_subfunc { __u8 kmo[16]; /* with MSA4 */ __u8 pcc[16]; /* with MSA4 */ __u8 ppno[16]; /* with MSA5 */ - __u8 reserved[1824]; + __u8 kma[16]; /* with MSA8 */ + __u8 reserved[1808]; }; /* kvm attributes for crypto */ diff --git a/tools/include/uapi/linux/perf_event.h b/tools/include/uapi/linux/perf_event.h index d09a9cd021b1..b1c0b187acfe 100644 --- a/tools/include/uapi/linux/perf_event.h +++ b/tools/include/uapi/linux/perf_event.h @@ -922,6 +922,7 @@ enum perf_callchain_context { #define PERF_FLAG_PID_CGROUP (1UL << 2) /* pid=cgroup id, per-cpu mode only */ #define PERF_FLAG_FD_CLOEXEC (1UL << 3) /* O_CLOEXEC */ +#if defined(__LITTLE_ENDIAN_BITFIELD) union perf_mem_data_src { __u64 val; struct { @@ -933,6 +934,21 @@ union perf_mem_data_src { mem_rsvd:31; }; }; +#elif defined(__BIG_ENDIAN_BITFIELD) +union perf_mem_data_src { + __u64 val; + struct { + __u64 mem_rsvd:31, + mem_dtlb:7, /* tlb access */ + mem_lock:2, /* lock instr */ + mem_snoop:5, /* snoop mode */ + mem_lvl:14, /* memory hierarchy level */ + mem_op:5; /* type of opcode */ + }; +}; +#else +#error "Unknown endianness" +#endif /* type of opcode (load/store/prefetch,code) */ #define PERF_MEM_OP_NA 0x01 /* not available */ diff --git a/tools/kvm/kvm_stat/kvm_stat b/tools/kvm/kvm_stat/kvm_stat index 581278c58488..8f74ed8e7237 100755 --- a/tools/kvm/kvm_stat/kvm_stat +++ b/tools/kvm/kvm_stat/kvm_stat @@ -30,8 +30,8 @@ import fcntl import resource import struct import re +import subprocess from collections import defaultdict -from time import sleep VMX_EXIT_REASONS = { 'EXCEPTION_NMI': 0, @@ -225,6 +225,7 @@ IOCTL_NUMBERS = { 'RESET': 0x00002403, } + class Arch(object): """Encapsulates global architecture specific data. @@ -255,12 +256,14 @@ class Arch(object): return ArchX86(SVM_EXIT_REASONS) return + class ArchX86(Arch): def __init__(self, exit_reasons): self.sc_perf_evt_open = 298 self.ioctl_numbers = IOCTL_NUMBERS self.exit_reasons = exit_reasons + class ArchPPC(Arch): def __init__(self): self.sc_perf_evt_open = 319 @@ -275,12 +278,14 @@ class ArchPPC(Arch): self.ioctl_numbers['SET_FILTER'] = 0x80002406 | char_ptr_size << 16 self.exit_reasons = {} + class ArchA64(Arch): def __init__(self): self.sc_perf_evt_open = 241 self.ioctl_numbers = IOCTL_NUMBERS self.exit_reasons = AARCH64_EXIT_REASONS + class ArchS390(Arch): def __init__(self): self.sc_perf_evt_open = 331 @@ -316,6 +321,61 @@ def parse_int_list(list_string): 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: @@ -342,6 +402,7 @@ def get_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. @@ -370,6 +431,7 @@ class perf_event_attr(ctypes.Structure): self.size = ctypes.sizeof(self) self.read_format = PERF_FORMAT_GROUP + def perf_event_open(attr, pid, cpu, group_fd, flags): """Wrapper for the sys_perf_evt_open() syscall. @@ -395,6 +457,7 @@ PERF_FORMAT_GROUP = 1 << 3 PATH_DEBUGFS_TRACING = '/sys/kernel/debug/tracing' PATH_DEBUGFS_KVM = '/sys/kernel/debug/kvm' + class Group(object): """Represents a perf event group.""" @@ -427,6 +490,7 @@ class Group(object): struct.unpack(read_format, os.read(self.events[0].fd, length)))) + class Event(object): """Represents a performance event and manages its life cycle.""" def __init__(self, name, group, trace_cpu, trace_pid, trace_point, @@ -510,6 +574,7 @@ class Event(object): """Resets the count of the trace event in the kernel.""" fcntl.ioctl(self.fd, ARCH.ioctl_numbers['RESET'], 0) + class TracepointProvider(object): """Data provider for the stats class. @@ -551,6 +616,7 @@ class TracepointProvider(object): def setup_traces(self): """Creates all event and group objects needed to be able to retrieve data.""" + fields = self.get_available_fields() if self._pid > 0: # Fetch list of all threads of the monitored pid, as qemu # starts a thread for each vcpu. @@ -561,7 +627,7 @@ class TracepointProvider(object): # The constant is needed as a buffer for python libs, std # streams and other files that the script opens. - newlim = len(groupids) * len(self._fields) + 50 + newlim = len(groupids) * len(fields) + 50 try: softlim_, hardlim = resource.getrlimit(resource.RLIMIT_NOFILE) @@ -577,7 +643,7 @@ class TracepointProvider(object): for groupid in groupids: group = Group() - for name in self._fields: + for name in fields: tracepoint = name tracefilter = None match = re.match(r'(.*)\((.*)\)', name) @@ -650,13 +716,23 @@ class TracepointProvider(object): ret[name] += val return ret + def reset(self): + """Reset all field counters""" + for group in self.group_leaders: + for event in group.events: + event.reset() + + class DebugfsProvider(object): """Provides data from the files that KVM creates in the kvm debugfs folder.""" def __init__(self): self._fields = self.get_available_fields() + self._baseline = {} self._pid = 0 self.do_read = True + self.paths = [] + self.reset() def get_available_fields(self): """"Returns a list of available fields. @@ -673,6 +749,7 @@ class DebugfsProvider(object): @fields.setter def fields(self, fields): self._fields = fields + self.reset() @property def pid(self): @@ -690,10 +767,11 @@ class DebugfsProvider(object): self.paths = filter(lambda x: "{}-".format(pid) in x, vms) else: - self.paths = [''] + self.paths = [] self.do_read = True + self.reset() - def read(self): + def read(self, reset=0): """Returns a dict with format:'file name / field -> current value'.""" results = {} @@ -701,10 +779,22 @@ class DebugfsProvider(object): if not self.do_read: return results - for path in self.paths: + paths = self.paths + if self._pid == 0: + paths = [] + for entry in os.walk(PATH_DEBUGFS_KVM): + for dir in entry[1]: + paths.append(dir) + for path in paths: for field in self._fields: - results[field] = results.get(field, 0) \ - + self.read_field(field, path) + value = self.read_field(field, path) + key = path + field + if reset: + self._baseline[key] = value + if self._baseline.get(key, -1) == -1: + self._baseline[key] = value + results[field] = (results.get(field, 0) + value - + self._baseline.get(key, 0)) return results @@ -718,6 +808,12 @@ class DebugfsProvider(object): except IOError: return 0 + def reset(self): + """Reset field counters""" + self._baseline = {} + self.read(1) + + class Stats(object): """Manages the data providers and the data they provide. @@ -753,14 +849,20 @@ class Stats(object): for provider in self.providers: provider.pid = self._pid_filter + def reset(self): + self.values = {} + for provider in self.providers: + provider.reset() + @property def fields_filter(self): return self._fields_filter @fields_filter.setter def fields_filter(self, fields_filter): - self._fields_filter = fields_filter - self.update_provider_filters() + if fields_filter != self._fields_filter: + self._fields_filter = fields_filter + self.update_provider_filters() @property def pid_filter(self): @@ -768,9 +870,10 @@ class Stats(object): @pid_filter.setter def pid_filter(self, pid): - self._pid_filter = pid - self.values = {} - self.update_provider_pid() + if pid != self._pid_filter: + self._pid_filter = pid + self.values = {} + self.update_provider_pid() def get(self): """Returns a dict with field -> (value, delta to last value) of all @@ -778,23 +881,26 @@ class Stats(object): for provider in self.providers: new = provider.read() for key in provider.fields: - oldval = self.values.get(key, (0, 0)) + oldval = self.values.get(key, (0, 0))[0] newval = new.get(key, 0) - newdelta = None - if oldval is not None: - newdelta = newval - oldval[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 +MAX_GUEST_NAME_LEN = 48 +MAX_REGEX_LEN = 44 +DEFAULT_REGEX = r'^[^\(]*$' + class Tui(object): """Instruments curses to draw a nice text ui.""" def __init__(self, stats): self.stats = stats self.screen = None - self.drilldown = False self.update_drilldown() def __enter__(self): @@ -809,7 +915,14 @@ class Tui(object): # return from C start_color() is ignorable. try: curses.start_color() - except: + except curses.error: + pass + + # Hide cursor in extra statement as some monochrome terminals + # might support hiding but not colors. + try: + curses.curs_set(0) + except curses.error: pass curses.use_default_colors() @@ -827,36 +940,60 @@ class Tui(object): def update_drilldown(self): """Sets or removes a filter that only allows fields without braces.""" if not self.stats.fields_filter: - self.stats.fields_filter = r'^[^\(]*$' + self.stats.fields_filter = DEFAULT_REGEX - elif self.stats.fields_filter == r'^[^\(]*$': + elif self.stats.fields_filter == DEFAULT_REGEX: self.stats.fields_filter = None def update_pid(self, pid): """Propagates pid selection to stats object.""" self.stats.pid_filter = pid - def refresh(self, sleeptime): - """Refreshes on-screen data.""" + def refresh_header(self, pid=None): + """Refreshes the header.""" + if pid is None: + pid = self.stats.pid_filter self.screen.erase() - if self.stats.pid_filter > 0: - self.screen.addstr(0, 0, 'kvm statistics - pid {0}' - .format(self.stats.pid_filter), - curses.A_BOLD) + gname = get_gname_from_pid(pid) + if gname: + gname = ('({})'.format(gname[:MAX_GUEST_NAME_LEN] + '...' + if len(gname) > MAX_GUEST_NAME_LEN + else gname)) + if pid > 0: + self.screen.addstr(0, 0, 'kvm statistics - pid {0} {1}' + .format(pid, gname), curses.A_BOLD) else: self.screen.addstr(0, 0, 'kvm statistics - summary', curses.A_BOLD) + if self.stats.fields_filter and self.stats.fields_filter \ + != DEFAULT_REGEX: + regex = self.stats.fields_filter + 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 + 8 - + 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') + self.screen.addstr(4, 1, 'Collecting data...') + self.screen.refresh() + + def refresh_body(self, sleeptime): row = 3 + self.screen.move(row, 0) + self.screen.clrtobot() stats = self.stats.get() + def sortkey(x): if stats[x][1]: return (-stats[x][1], -stats[x][0]) else: return (0, -stats[x][0]) + total = 0. + for val in stats.values(): + total += val[0] for key in sorted(stats.keys(), key=sortkey): if row >= self.screen.getmaxyx()[0]: @@ -869,6 +1006,8 @@ class Tui(object): 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,)) row += 1 @@ -893,20 +1032,24 @@ class Tui(object): regex = self.screen.getstr() curses.noecho() if len(regex) == 0: + self.stats.fields_filter = DEFAULT_REGEX + self.refresh_header() return try: re.compile(regex) self.stats.fields_filter = regex + self.refresh_header() return except re.error: continue - def show_vm_selection(self): + def show_vm_selection_by_pid(self): """Draws PID selection mask. Asks for a pid until a valid pid or 0 has been entered. """ + msg = '' while True: self.screen.erase() self.screen.addstr(0, 0, @@ -915,6 +1058,7 @@ class Tui(object): self.screen.addstr(1, 0, 'This might limit the shown data to the trace ' 'statistics.') + self.screen.addstr(5, 0, msg) curses.echo() self.screen.addstr(3, 0, "Pid [0 or pid]: ") @@ -922,60 +1066,128 @@ class Tui(object): curses.noecho() try: - pid = int(pid) - - if pid == 0: - self.update_pid(pid) - break - else: - if not os.path.isdir(os.path.join('/proc/', str(pid))): + if len(pid) > 0: + pid = int(pid) + if pid != 0 and not os.path.isdir(os.path.join('/proc/', + str(pid))): + msg = '"' + str(pid) + '": Not a running process' continue - else: - self.update_pid(pid) - break + else: + pid = 0 + self.refresh_header(pid) + self.update_pid(pid) + break except ValueError: + msg = '"' + str(pid) + '": Not a valid pid' continue + def show_vm_selection_by_guest_name(self): + """Draws guest selection mask. + + Asks for a guest name until a valid guest name or '' is entered. + + """ + msg = '' + while True: + self.screen.erase() + self.screen.addstr(0, 0, + 'Show statistics for specific guest.', + curses.A_BOLD) + self.screen.addstr(1, 0, + 'This might limit the shown data to the trace ' + 'statistics.') + self.screen.addstr(5, 0, msg) + curses.echo() + self.screen.addstr(3, 0, "Guest [ENTER or guest]: ") + gname = self.screen.getstr() + curses.noecho() + + if not gname: + self.refresh_header(0) + self.update_pid(0) + break + else: + pids = [] + try: + pids = get_pid_from_gname(gname) + except: + msg = '"' + gname + '": Internal error while searching, ' \ + 'use pid filter instead' + continue + if len(pids) == 0: + msg = '"' + gname + '": Not an active guest' + continue + if len(pids) > 1: + msg = '"' + gname + '": Multiple matches found, use pid ' \ + 'filter instead' + continue + self.refresh_header(pids[0]) + self.update_pid(pids[0]) + break + def show_stats(self): """Refreshes the screen and processes user input.""" - sleeptime = 0.25 + sleeptime = DELAY_INITIAL + self.refresh_header() while True: - self.refresh(sleeptime) + self.refresh_body(sleeptime) curses.halfdelay(int(sleeptime * 10)) - sleeptime = 3 + sleeptime = DELAY_REGULAR try: char = self.screen.getkey() if char == 'x': - self.drilldown = not self.drilldown + 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': self.show_filter_selection() + sleeptime = DELAY_INITIAL + if char == 'g': + self.show_vm_selection_by_guest_name() + sleeptime = DELAY_INITIAL if char == 'p': - self.show_vm_selection() + self.show_vm_selection_by_pid() + sleeptime = DELAY_INITIAL + if char == 'r': + self.refresh_header() + self.stats.reset() + sleeptime = DELAY_INITIAL except KeyboardInterrupt: break except curses.error: continue + def batch(stats): """Prints statistics in a key, value format.""" - s = stats.get() - time.sleep(1) - s = stats.get() - for key in sorted(s.keys()): - values = s[key] - print '%-42s%10d%10d' % (key, values[0], values[1]) + try: + s = stats.get() + time.sleep(1) + s = stats.get() + for key in sorted(s.keys()): + values = s[key] + print '%-42s%10d%10d' % (key, values[0], values[1]) + except KeyboardInterrupt: + pass + def log(stats): """Prints statistics as reiterating key block, multiple value blocks.""" keys = sorted(stats.get().iterkeys()) + def banner(): for k in keys: print '%s' % k, print + def statline(): s = stats.get() for k in keys: @@ -984,11 +1196,15 @@ def log(stats): line = 0 banner_repeat = 20 while True: - time.sleep(1) - if line % banner_repeat == 0: - banner() - statline() - line += 1 + try: + time.sleep(1) + if line % banner_repeat == 0: + banner() + statline() + line += 1 + except KeyboardInterrupt: + break + def get_options(): """Returns processed program arguments.""" @@ -1009,6 +1225,16 @@ Requirements: CAP_SYS_ADMIN and perf events are used. - CAP_SYS_RESOURCE if the hard limit is not high enough to allow the large number of files that are possibly opened. + +Interactive Commands: + c clear filter + f filter by regular expression + g filter by guest name + p filter by PID + q quit + x toggle reporting of stats for individual child trace events + r reset stats +Press any other key to refresh statistics immediately. """ class PlainHelpFormatter(optparse.IndentedHelpFormatter): @@ -1018,6 +1244,22 @@ Requirements: else: return "" + def cb_guest_to_pid(option, opt, val, parser): + try: + pids = get_pid_from_gname(val) + except: + raise optparse.OptionValueError('Error while searching for guest ' + '"{}", use "-p" to specify a pid ' + 'instead'.format(val)) + if len(pids) == 0: + raise optparse.OptionValueError('No guest by the name "{}" ' + 'found'.format(val)) + if len(pids) > 1: + raise optparse.OptionValueError('Multiple processes found (pids: ' + '{}) - use "-p" to specify a pid ' + 'instead'.format(" ".join(pids))) + parser.values.pid = pids[0] + optparser = optparse.OptionParser(description=description_text, formatter=PlainHelpFormatter()) optparser.add_option('-1', '--once', '--batch', @@ -1051,15 +1293,24 @@ Requirements: help='fields to display (regex)', ) optparser.add_option('-p', '--pid', - action='store', - default=0, - type=int, - dest='pid', - help='restrict statistics to pid', - ) + action='store', + default=0, + type='int', + dest='pid', + help='restrict statistics to pid', + ) + optparser.add_option('-g', '--guest', + action='callback', + type='string', + dest='pid', + metavar='GUEST', + help='restrict statistics to guest by name', + callback=cb_guest_to_pid, + ) (options, _) = optparser.parse_args(sys.argv) return options + def get_providers(options): """Returns a list of data providers depending on the passed options.""" providers = [] @@ -1073,6 +1324,7 @@ def get_providers(options): 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'): @@ -1086,8 +1338,8 @@ def check_access(options): "Also ensure, that the kvm modules are loaded.\n") sys.exit(1) - if not os.path.exists(PATH_DEBUGFS_TRACING) and (options.tracepoints - or not options.debugfs): + if not os.path.exists(PATH_DEBUGFS_TRACING) and (options.tracepoints or + not options.debugfs): sys.stderr.write("Please enable CONFIG_TRACING in your kernel " "when using the option -t (default).\n" "If it is enabled, make {0} readable by the " @@ -1098,10 +1350,11 @@ def check_access(options): sys.stderr.write("Falling back to debugfs statistics!\n") options.debugfs = True - sleep(5) + time.sleep(5) return options + def main(): options = get_options() options = check_access(options) diff --git a/tools/kvm/kvm_stat/kvm_stat.txt b/tools/kvm/kvm_stat/kvm_stat.txt index b92a153d7115..109431bdc63c 100644 --- a/tools/kvm/kvm_stat/kvm_stat.txt +++ b/tools/kvm/kvm_stat/kvm_stat.txt @@ -18,11 +18,33 @@ state transitions such as guest mode entry and exit. This tool is useful for observing guest behavior from the host perspective. Often conclusions about performance or buggy behavior can be drawn from the output. +While running in regular mode, use any of the keys listed in section +'Interactive Commands' below. +Use batch and logging modes for scripting purposes. The set of KVM kernel module trace events may be specific to the kernel version or architecture. It is best to check the KVM kernel module source code for the meaning of events. +INTERACTIVE COMMANDS +-------------------- +[horizontal] +*c*:: clear filter + +*f*:: filter by regular expression + +*g*:: filter by guest name + +*p*:: filter by PID + +*q*:: quit + +*r*:: reset stats + +*x*:: toggle reporting of stats for child trace events + +Press any other key to refresh statistics immediately. + OPTIONS ------- -1:: @@ -46,6 +68,10 @@ OPTIONS --pid=<pid>:: limit statistics to one virtual machine (pid) +-g<guest>:: +--guest=<guest_name>:: + limit statistics to one virtual machine (guest name) + -f<fields>:: --fields=<fields>:: fields to display (regex) diff --git a/tools/pci/pcitest.c b/tools/pci/pcitest.c new file mode 100644 index 000000000000..ad54a58d7dda --- /dev/null +++ b/tools/pci/pcitest.c @@ -0,0 +1,186 @@ +/** + * Userspace PCI Endpoint Test Module + * + * Copyright (C) 2017 Texas Instruments + * Author: Kishon Vijay Abraham I <kishon@ti.com> + * + * This program is free software: you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 of + * the License as published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program. If not, see <http://www.gnu.org/licenses/>. + */ + +#include <errno.h> +#include <fcntl.h> +#include <stdbool.h> +#include <stdio.h> +#include <stdlib.h> +#include <sys/ioctl.h> +#include <time.h> +#include <unistd.h> + +#include <linux/pcitest.h> + +#define BILLION 1E9 + +static char *result[] = { "NOT OKAY", "OKAY" }; + +struct pci_test { + char *device; + char barnum; + bool legacyirq; + unsigned int msinum; + bool read; + bool write; + bool copy; + unsigned long size; +}; + +static int run_test(struct pci_test *test) +{ + long ret; + int fd; + struct timespec start, end; + double time; + + fd = open(test->device, O_RDWR); + if (fd < 0) { + perror("can't open PCI Endpoint Test device"); + return fd; + } + + if (test->barnum >= 0 && test->barnum <= 5) { + ret = ioctl(fd, PCITEST_BAR, test->barnum); + fprintf(stdout, "BAR%d:\t\t", test->barnum); + if (ret < 0) + fprintf(stdout, "TEST FAILED\n"); + else + fprintf(stdout, "%s\n", result[ret]); + } + + if (test->legacyirq) { + ret = ioctl(fd, PCITEST_LEGACY_IRQ, 0); + fprintf(stdout, "LEGACY IRQ:\t"); + if (ret < 0) + fprintf(stdout, "TEST FAILED\n"); + else + fprintf(stdout, "%s\n", result[ret]); + } + + if (test->msinum > 0 && test->msinum <= 32) { + ret = ioctl(fd, PCITEST_MSI, test->msinum); + fprintf(stdout, "MSI%d:\t\t", test->msinum); + if (ret < 0) + fprintf(stdout, "TEST FAILED\n"); + else + fprintf(stdout, "%s\n", result[ret]); + } + + if (test->write) { + ret = ioctl(fd, PCITEST_WRITE, test->size); + fprintf(stdout, "WRITE (%7ld bytes):\t\t", test->size); + if (ret < 0) + fprintf(stdout, "TEST FAILED\n"); + else + fprintf(stdout, "%s\n", result[ret]); + } + + if (test->read) { + ret = ioctl(fd, PCITEST_READ, test->size); + fprintf(stdout, "READ (%7ld bytes):\t\t", test->size); + if (ret < 0) + fprintf(stdout, "TEST FAILED\n"); + else + fprintf(stdout, "%s\n", result[ret]); + } + + if (test->copy) { + ret = ioctl(fd, PCITEST_COPY, test->size); + fprintf(stdout, "COPY (%7ld bytes):\t\t", test->size); + if (ret < 0) + fprintf(stdout, "TEST FAILED\n"); + else + fprintf(stdout, "%s\n", result[ret]); + } + + fflush(stdout); +} + +int main(int argc, char **argv) +{ + int c; + struct pci_test *test; + + test = calloc(1, sizeof(*test)); + if (!test) { + perror("Fail to allocate memory for pci_test\n"); + return -ENOMEM; + } + + /* since '0' is a valid BAR number, initialize it to -1 */ + test->barnum = -1; + + /* set default size as 100KB */ + test->size = 0x19000; + + /* set default endpoint device */ + test->device = "/dev/pci-endpoint-test.0"; + + while ((c = getopt(argc, argv, "D:b:m:lrwcs:")) != EOF) + switch (c) { + case 'D': + test->device = optarg; + continue; + case 'b': + test->barnum = atoi(optarg); + if (test->barnum < 0 || test->barnum > 5) + goto usage; + continue; + case 'l': + test->legacyirq = true; + continue; + case 'm': + test->msinum = atoi(optarg); + if (test->msinum < 1 || test->msinum > 32) + goto usage; + continue; + case 'r': + test->read = true; + continue; + case 'w': + test->write = true; + continue; + case 'c': + test->copy = true; + continue; + case 's': + test->size = strtoul(optarg, NULL, 0); + continue; + case '?': + case 'h': + default: +usage: + fprintf(stderr, + "usage: %s [options]\n" + "Options:\n" + "\t-D <dev> PCI endpoint test device {default: /dev/pci-endpoint-test.0}\n" + "\t-b <bar num> BAR test (bar number between 0..5)\n" + "\t-m <msi num> MSI test (msi number between 1..32)\n" + "\t-r Read buffer test\n" + "\t-w Write buffer test\n" + "\t-c Copy buffer test\n" + "\t-s <size> Size of buffer {default: 100KB}\n", + argv[0]); + return -EINVAL; + } + + run_test(test); + return 0; +} diff --git a/tools/pci/pcitest.sh b/tools/pci/pcitest.sh new file mode 100644 index 000000000000..5442bbea4c22 --- /dev/null +++ b/tools/pci/pcitest.sh @@ -0,0 +1,56 @@ +#!/bin/sh + +echo "BAR tests" +echo + +bar=0 + +while [ $bar -lt 6 ] +do + pcitest -b $bar + bar=`expr $bar + 1` +done +echo + +echo "Interrupt tests" +echo + +pcitest -l +msi=1 + +while [ $msi -lt 33 ] +do + pcitest -m $msi + msi=`expr $msi + 1` +done +echo + +echo "Read Tests" +echo + +pcitest -r -s 1 +pcitest -r -s 1024 +pcitest -r -s 1025 +pcitest -r -s 1024000 +pcitest -r -s 1024001 +echo + +echo "Write Tests" +echo + +pcitest -w -s 1 +pcitest -w -s 1024 +pcitest -w -s 1025 +pcitest -w -s 1024000 +pcitest -w -s 1024001 +echo + +echo "Copy Tests" +echo + +pcitest -c -s 1 +pcitest -c -s 1024 +pcitest -c -s 1025 +pcitest -c -s 1024000 +pcitest -c -s 1024001 +echo diff --git a/tools/testing/nvdimm/Kbuild b/tools/testing/nvdimm/Kbuild index 405212be044a..d870520da68b 100644 --- a/tools/testing/nvdimm/Kbuild +++ b/tools/testing/nvdimm/Kbuild @@ -28,7 +28,10 @@ obj-$(CONFIG_ND_BTT) += nd_btt.o obj-$(CONFIG_ND_BLK) += nd_blk.o obj-$(CONFIG_X86_PMEM_LEGACY) += nd_e820.o obj-$(CONFIG_ACPI_NFIT) += nfit.o -obj-$(CONFIG_DEV_DAX) += dax.o +ifeq ($(CONFIG_DAX),m) +obj-$(CONFIG_DAX) += dax.o +endif +obj-$(CONFIG_DEV_DAX) += device_dax.o obj-$(CONFIG_DEV_DAX_PMEM) += dax_pmem.o nfit-y := $(ACPI_SRC)/core.o @@ -48,9 +51,13 @@ nd_blk-y += config_check.o nd_e820-y := $(NVDIMM_SRC)/e820.o nd_e820-y += config_check.o -dax-y := $(DAX_SRC)/dax.o +dax-y := $(DAX_SRC)/super.o dax-y += config_check.o +device_dax-y := $(DAX_SRC)/device.o +device_dax-y += dax-dev.o +device_dax-y += config_check.o + dax_pmem-y := $(DAX_SRC)/pmem.o dax_pmem-y += config_check.o diff --git a/tools/testing/nvdimm/dax-dev.c b/tools/testing/nvdimm/dax-dev.c new file mode 100644 index 000000000000..36ee3d8797c3 --- /dev/null +++ b/tools/testing/nvdimm/dax-dev.c @@ -0,0 +1,49 @@ +/* + * Copyright (c) 2016, Intel Corporation. + * + * This program is free software; you can redistribute it and/or modify it + * under the terms and conditions of the GNU General Public License, + * version 2, as published by the Free Software Foundation. + * + * This program is distributed in the hope it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for + * more details. + */ +#include "test/nfit_test.h" +#include <linux/mm.h> +#include "../../../drivers/dax/dax-private.h" + +phys_addr_t dax_pgoff_to_phys(struct dev_dax *dev_dax, pgoff_t pgoff, + unsigned long size) +{ + struct resource *res; + phys_addr_t addr; + int i; + + for (i = 0; i < dev_dax->num_resources; i++) { + res = &dev_dax->res[i]; + addr = pgoff * PAGE_SIZE + res->start; + if (addr >= res->start && addr <= res->end) + break; + pgoff -= PHYS_PFN(resource_size(res)); + } + + if (i < dev_dax->num_resources) { + res = &dev_dax->res[i]; + if (addr + size - 1 <= res->end) { + if (get_nfit_res(addr)) { + struct page *page; + + if (dev_dax->region->align > PAGE_SIZE) + return -1; + + page = vmalloc_to_page((void *)addr); + return PFN_PHYS(page_to_pfn(page)); + } else + return addr; + } + } + + return -1; +} diff --git a/tools/testing/nvdimm/pmem-dax.c b/tools/testing/nvdimm/pmem-dax.c index c9b8c48f85fc..b53596ad601b 100644 --- a/tools/testing/nvdimm/pmem-dax.c +++ b/tools/testing/nvdimm/pmem-dax.c @@ -15,13 +15,13 @@ #include <pmem.h> #include <nd.h> -long pmem_direct_access(struct block_device *bdev, sector_t sector, - void **kaddr, pfn_t *pfn, long size) +long __pmem_direct_access(struct pmem_device *pmem, pgoff_t pgoff, + long nr_pages, void **kaddr, pfn_t *pfn) { - struct pmem_device *pmem = bdev->bd_queue->queuedata; - resource_size_t offset = sector * 512 + pmem->data_offset; + resource_size_t offset = PFN_PHYS(pgoff) + pmem->data_offset; - if (unlikely(is_bad_pmem(&pmem->bb, sector, size))) + if (unlikely(is_bad_pmem(&pmem->bb, PFN_PHYS(pgoff) / 512, + PFN_PHYS(nr_pages)))) return -EIO; /* @@ -34,11 +34,10 @@ long pmem_direct_access(struct block_device *bdev, sector_t sector, *kaddr = pmem->virt_addr + offset; page = vmalloc_to_page(pmem->virt_addr + offset); *pfn = page_to_pfn_t(page); - dev_dbg_ratelimited(disk_to_dev(bdev->bd_disk)->parent, - "%s: sector: %#llx pfn: %#lx\n", __func__, - (unsigned long long) sector, page_to_pfn(page)); + pr_debug_ratelimited("%s: pmem: %p pgoff: %#lx pfn: %#lx\n", + __func__, pmem, pgoff, page_to_pfn(page)); - return PAGE_SIZE; + return 1; } *kaddr = pmem->virt_addr + offset; @@ -49,6 +48,6 @@ long pmem_direct_access(struct block_device *bdev, sector_t sector, * requested range. */ if (unlikely(pmem->bb.count)) - return size; - return pmem->size - pmem->pfn_pad - offset; + return nr_pages; + return PHYS_PFN(pmem->size - pmem->pfn_pad - offset); } diff --git a/tools/testing/nvdimm/test/nfit.c b/tools/testing/nvdimm/test/nfit.c index 798f17655433..c2187178fb13 100644 --- a/tools/testing/nvdimm/test/nfit.c +++ b/tools/testing/nvdimm/test/nfit.c @@ -132,6 +132,7 @@ static u32 handle[] = { [3] = NFIT_DIMM_HANDLE(0, 0, 1, 0, 1), [4] = NFIT_DIMM_HANDLE(0, 1, 0, 0, 0), [5] = NFIT_DIMM_HANDLE(1, 0, 0, 0, 0), + [6] = NFIT_DIMM_HANDLE(1, 0, 0, 0, 1), }; static unsigned long dimm_fail_cmd_flags[NUM_DCR]; @@ -728,8 +729,8 @@ static int nfit_test0_alloc(struct nfit_test *t) static int nfit_test1_alloc(struct nfit_test *t) { size_t nfit_size = sizeof(struct acpi_nfit_system_address) * 2 - + sizeof(struct acpi_nfit_memory_map) - + offsetof(struct acpi_nfit_control_region, window_size); + + sizeof(struct acpi_nfit_memory_map) * 2 + + offsetof(struct acpi_nfit_control_region, window_size) * 2; int i; t->nfit_buf = test_alloc(t, nfit_size, &t->nfit_dma); @@ -906,6 +907,7 @@ static void nfit_test0_setup(struct nfit_test *t) memdev->address = 0; memdev->interleave_index = 0; memdev->interleave_ways = 2; + memdev->flags = ACPI_NFIT_MEM_HEALTH_ENABLED; /* mem-region2 (spa1, dimm0) */ memdev = nfit_buf + offset + sizeof(struct acpi_nfit_memory_map) * 2; @@ -921,6 +923,7 @@ static void nfit_test0_setup(struct nfit_test *t) memdev->address = SPA0_SIZE/2; memdev->interleave_index = 0; memdev->interleave_ways = 4; + memdev->flags = ACPI_NFIT_MEM_HEALTH_ENABLED; /* mem-region3 (spa1, dimm1) */ memdev = nfit_buf + offset + sizeof(struct acpi_nfit_memory_map) * 3; @@ -951,6 +954,7 @@ static void nfit_test0_setup(struct nfit_test *t) memdev->address = SPA0_SIZE/2; memdev->interleave_index = 0; memdev->interleave_ways = 4; + memdev->flags = ACPI_NFIT_MEM_HEALTH_ENABLED; /* mem-region5 (spa1, dimm3) */ memdev = nfit_buf + offset + sizeof(struct acpi_nfit_memory_map) * 5; @@ -1086,6 +1090,7 @@ static void nfit_test0_setup(struct nfit_test *t) memdev->address = 0; memdev->interleave_index = 0; memdev->interleave_ways = 1; + memdev->flags = ACPI_NFIT_MEM_HEALTH_ENABLED; offset = offset + sizeof(struct acpi_nfit_memory_map) * 14; /* dcr-descriptor0: blk */ @@ -1384,6 +1389,7 @@ static void nfit_test0_setup(struct nfit_test *t) memdev->address = 0; memdev->interleave_index = 0; memdev->interleave_ways = 1; + memdev->flags = ACPI_NFIT_MEM_HEALTH_ENABLED; /* mem-region16 (spa/bdw4, dimm4) */ memdev = nfit_buf + offset + @@ -1486,6 +1492,34 @@ static void nfit_test1_setup(struct nfit_test *t) dcr->code = NFIT_FIC_BYTE; dcr->windows = 0; + offset += dcr->header.length; + memdev = nfit_buf + offset; + memdev->header.type = ACPI_NFIT_TYPE_MEMORY_MAP; + memdev->header.length = sizeof(*memdev); + memdev->device_handle = handle[6]; + memdev->physical_id = 0; + memdev->region_id = 0; + memdev->range_index = 0; + memdev->region_index = 0+2; + memdev->region_size = SPA2_SIZE; + memdev->region_offset = 0; + memdev->address = 0; + memdev->interleave_index = 0; + memdev->interleave_ways = 1; + memdev->flags = ACPI_NFIT_MEM_MAP_FAILED; + + /* dcr-descriptor1 */ + offset += sizeof(*memdev); + dcr = nfit_buf + offset; + dcr->header.type = ACPI_NFIT_TYPE_CONTROL_REGION; + dcr->header.length = offsetof(struct acpi_nfit_control_region, + window_size); + dcr->region_index = 0+2; + dcr_common_init(dcr); + dcr->serial_number = ~handle[6]; + dcr->code = NFIT_FIC_BYTE; + dcr->windows = 0; + post_ars_status(&t->ars_state, t->spa_set_dma[0], SPA2_SIZE); acpi_desc = &t->acpi_desc; @@ -1817,6 +1851,10 @@ static int nfit_test_probe(struct platform_device *pdev) if (rc) return rc; + rc = devm_add_action_or_reset(&pdev->dev, acpi_nfit_shutdown, acpi_desc); + if (rc) + return rc; + if (nfit_test->setup != nfit_test0_setup) return 0; @@ -1907,7 +1945,7 @@ static __init int nfit_test_init(void) case 1: nfit_test->num_pm = 1; nfit_test->dcr_idx = NUM_DCR; - nfit_test->num_dcr = 1; + nfit_test->num_dcr = 2; nfit_test->alloc = nfit_test1_alloc; nfit_test->setup = nfit_test1_setup; break; @@ -1924,6 +1962,7 @@ static __init int nfit_test_init(void) put_device(&pdev->dev); goto err_register; } + get_device(&pdev->dev); rc = dma_coerce_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(64)); if (rc) @@ -1942,6 +1981,10 @@ static __init int nfit_test_init(void) if (instances[i]) platform_device_unregister(&instances[i]->pdev); nfit_test_teardown(); + for (i = 0; i < NUM_NFITS; i++) + if (instances[i]) + put_device(&instances[i]->pdev.dev); + return rc; } @@ -1949,10 +1992,13 @@ static __exit void nfit_test_exit(void) { int i; - platform_driver_unregister(&nfit_test_driver); for (i = 0; i < NUM_NFITS; i++) platform_device_unregister(&instances[i]->pdev); + platform_driver_unregister(&nfit_test_driver); nfit_test_teardown(); + + for (i = 0; i < NUM_NFITS; i++) + put_device(&instances[i]->pdev.dev); class_destroy(nfit_test_dimm); } diff --git a/tools/testing/selftests/powerpc/Makefile b/tools/testing/selftests/powerpc/Makefile index 2132ff8eb4e7..03e1617367d3 100644 --- a/tools/testing/selftests/powerpc/Makefile +++ b/tools/testing/selftests/powerpc/Makefile @@ -14,6 +14,7 @@ export CFLAGS SUB_DIRS = alignment \ benchmarks \ + cache_shape \ copyloops \ context_switch \ dscr \ diff --git a/tools/testing/selftests/powerpc/cache_shape/.gitignore b/tools/testing/selftests/powerpc/cache_shape/.gitignore new file mode 100644 index 000000000000..ec1848434be5 --- /dev/null +++ b/tools/testing/selftests/powerpc/cache_shape/.gitignore @@ -0,0 +1 @@ +cache_shape diff --git a/tools/testing/selftests/powerpc/cache_shape/Makefile b/tools/testing/selftests/powerpc/cache_shape/Makefile new file mode 100644 index 000000000000..b24485ab30e2 --- /dev/null +++ b/tools/testing/selftests/powerpc/cache_shape/Makefile @@ -0,0 +1,10 @@ +TEST_PROGS := cache_shape + +all: $(TEST_PROGS) + +$(TEST_PROGS): ../harness.c ../utils.c + +include ../../lib.mk + +clean: + rm -f $(TEST_PROGS) *.o diff --git a/tools/testing/selftests/powerpc/cache_shape/cache_shape.c b/tools/testing/selftests/powerpc/cache_shape/cache_shape.c new file mode 100644 index 000000000000..29ec07eba7f9 --- /dev/null +++ b/tools/testing/selftests/powerpc/cache_shape/cache_shape.c @@ -0,0 +1,125 @@ +/* + * Copyright 2017, Michael Ellerman, IBM Corp. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * as published by the Free Software Foundation; either version + * 2 of the License, or (at your option) any later version. + */ + +#include <elf.h> +#include <errno.h> +#include <fcntl.h> +#include <link.h> +#include <stdio.h> +#include <stdlib.h> +#include <string.h> +#include <sys/stat.h> +#include <sys/types.h> +#include <sys/wait.h> +#include <unistd.h> + +#include "utils.h" + +#ifndef AT_L1I_CACHESIZE +#define AT_L1I_CACHESIZE 40 +#define AT_L1I_CACHEGEOMETRY 41 +#define AT_L1D_CACHESIZE 42 +#define AT_L1D_CACHEGEOMETRY 43 +#define AT_L2_CACHESIZE 44 +#define AT_L2_CACHEGEOMETRY 45 +#define AT_L3_CACHESIZE 46 +#define AT_L3_CACHEGEOMETRY 47 +#endif + +static void print_size(const char *label, uint32_t val) +{ + printf("%s cache size: %#10x %10dB %10dK\n", label, val, val, val / 1024); +} + +static void print_geo(const char *label, uint32_t val) +{ + uint16_t assoc; + + printf("%s line size: %#10x ", label, val & 0xFFFF); + + assoc = val >> 16; + if (assoc) + printf("%u-way", assoc); + else + printf("fully"); + + printf(" associative\n"); +} + +static int test_cache_shape() +{ + static char buffer[4096]; + ElfW(auxv_t) *p; + int found; + + FAIL_IF(read_auxv(buffer, sizeof(buffer))); + + found = 0; + + p = find_auxv_entry(AT_L1I_CACHESIZE, buffer); + if (p) { + found++; + print_size("L1I ", (uint32_t)p->a_un.a_val); + } + + p = find_auxv_entry(AT_L1I_CACHEGEOMETRY, buffer); + if (p) { + found++; + print_geo("L1I ", (uint32_t)p->a_un.a_val); + } + + p = find_auxv_entry(AT_L1D_CACHESIZE, buffer); + if (p) { + found++; + print_size("L1D ", (uint32_t)p->a_un.a_val); + } + + p = find_auxv_entry(AT_L1D_CACHEGEOMETRY, buffer); + if (p) { + found++; + print_geo("L1D ", (uint32_t)p->a_un.a_val); + } + + p = find_auxv_entry(AT_L2_CACHESIZE, buffer); + if (p) { + found++; + print_size("L2 ", (uint32_t)p->a_un.a_val); + } + + p = find_auxv_entry(AT_L2_CACHEGEOMETRY, buffer); + if (p) { + found++; + print_geo("L2 ", (uint32_t)p->a_un.a_val); + } + + p = find_auxv_entry(AT_L3_CACHESIZE, buffer); + if (p) { + found++; + print_size("L3 ", (uint32_t)p->a_un.a_val); + } + + p = find_auxv_entry(AT_L3_CACHEGEOMETRY, buffer); + if (p) { + found++; + print_geo("L3 ", (uint32_t)p->a_un.a_val); + } + + /* If we found none we're probably on a system where they don't exist */ + SKIP_IF(found == 0); + + /* But if we found any, we expect to find them all */ + FAIL_IF(found != 8); + + return 0; +} + +int main(void) +{ + return test_harness(test_cache_shape, "cache_shape"); +} diff --git a/tools/testing/selftests/powerpc/include/utils.h b/tools/testing/selftests/powerpc/include/utils.h index 53405e8a52ab..735815b3ad7f 100644 --- a/tools/testing/selftests/powerpc/include/utils.h +++ b/tools/testing/selftests/powerpc/include/utils.h @@ -24,7 +24,11 @@ typedef uint8_t u8; void test_harness_set_timeout(uint64_t time); int test_harness(int (test_function)(void), char *name); -extern void *get_auxv_entry(int type); + +int read_auxv(char *buf, ssize_t buf_size); +void *find_auxv_entry(int type, char *auxv); +void *get_auxv_entry(int type); + int pick_online_cpu(void); static inline bool have_hwcap(unsigned long ftr) diff --git a/tools/testing/selftests/powerpc/utils.c b/tools/testing/selftests/powerpc/utils.c index dcf74184bfd0..d46916867a6f 100644 --- a/tools/testing/selftests/powerpc/utils.c +++ b/tools/testing/selftests/powerpc/utils.c @@ -19,45 +19,64 @@ static char auxv[4096]; -void *get_auxv_entry(int type) +int read_auxv(char *buf, ssize_t buf_size) { - ElfW(auxv_t) *p; - void *result; ssize_t num; - int fd; + int rc, fd; fd = open("/proc/self/auxv", O_RDONLY); if (fd == -1) { perror("open"); - return NULL; + return -errno; } - result = NULL; - - num = read(fd, auxv, sizeof(auxv)); + num = read(fd, buf, buf_size); if (num < 0) { perror("read"); + rc = -EIO; goto out; } - if (num > sizeof(auxv)) { - printf("Overflowed auxv buffer\n"); + if (num > buf_size) { + printf("overflowed auxv buffer\n"); + rc = -EOVERFLOW; goto out; } + rc = 0; +out: + close(fd); + return rc; +} + +void *find_auxv_entry(int type, char *auxv) +{ + ElfW(auxv_t) *p; + p = (ElfW(auxv_t) *)auxv; while (p->a_type != AT_NULL) { - if (p->a_type == type) { - result = (void *)p->a_un.a_val; - break; - } + if (p->a_type == type) + return p; p++; } -out: - close(fd); - return result; + + return NULL; +} + +void *get_auxv_entry(int type) +{ + ElfW(auxv_t) *p; + + if (read_auxv(auxv, sizeof(auxv))) + return NULL; + + p = find_auxv_entry(type, auxv); + if (p) + return (void *)p->a_un.a_val; + + return NULL; } int pick_online_cpu(void) diff --git a/tools/testing/selftests/vm/Makefile b/tools/testing/selftests/vm/Makefile index dba889004ea1..cbb29e41ef2b 100644 --- a/tools/testing/selftests/vm/Makefile +++ b/tools/testing/selftests/vm/Makefile @@ -16,6 +16,7 @@ TEST_GEN_FILES += thuge-gen TEST_GEN_FILES += transhuge-stress TEST_GEN_FILES += userfaultfd TEST_GEN_FILES += mlock-random-test +TEST_GEN_FILES += virtual_address_range TEST_PROGS := run_vmtests diff --git a/tools/testing/selftests/vm/run_vmtests b/tools/testing/selftests/vm/run_vmtests index 3214a6456d13..0640923ded7e 100755 --- a/tools/testing/selftests/vm/run_vmtests +++ b/tools/testing/selftests/vm/run_vmtests @@ -165,4 +165,15 @@ else echo "[PASS]" fi +echo "-----------------------------" +echo "running virtual_address_range" +echo "-----------------------------" +./virtual_address_range +if [ $? -ne 0 ]; then + echo "[FAIL]" + exitcode=1 +else + echo "[PASS]" +fi + exit $exitcode diff --git a/tools/testing/selftests/vm/virtual_address_range.c b/tools/testing/selftests/vm/virtual_address_range.c new file mode 100644 index 000000000000..3b02aa6eb9da --- /dev/null +++ b/tools/testing/selftests/vm/virtual_address_range.c @@ -0,0 +1,122 @@ +/* + * Copyright 2017, Anshuman Khandual, IBM Corp. + * Licensed under GPLv2. + * + * Works on architectures which support 128TB virtual + * address range and beyond. + */ +#include <stdio.h> +#include <stdlib.h> +#include <string.h> +#include <unistd.h> +#include <errno.h> +#include <numaif.h> +#include <sys/mman.h> +#include <sys/time.h> + +/* + * Maximum address range mapped with a single mmap() + * call is little bit more than 16GB. Hence 16GB is + * chosen as the single chunk size for address space + * mapping. + */ +#define MAP_CHUNK_SIZE 17179869184UL /* 16GB */ + +/* + * Address space till 128TB is mapped without any hint + * and is enabled by default. Address space beyond 128TB + * till 512TB is obtained by passing hint address as the + * first argument into mmap() system call. + * + * The process heap address space is divided into two + * different areas one below 128TB and one above 128TB + * till it reaches 512TB. One with size 128TB and the + * other being 384TB. + */ +#define NR_CHUNKS_128TB 8192UL /* Number of 16GB chunks for 128TB */ +#define NR_CHUNKS_384TB 24576UL /* Number of 16GB chunks for 384TB */ + +#define ADDR_MARK_128TB (1UL << 47) /* First address beyond 128TB */ + +static char *hind_addr(void) +{ + int bits = 48 + rand() % 15; + + return (char *) (1UL << bits); +} + +static int validate_addr(char *ptr, int high_addr) +{ + unsigned long addr = (unsigned long) ptr; + + if (high_addr) { + if (addr < ADDR_MARK_128TB) { + printf("Bad address %lx\n", addr); + return 1; + } + return 0; + } + + if (addr > ADDR_MARK_128TB) { + printf("Bad address %lx\n", addr); + return 1; + } + return 0; +} + +static int validate_lower_address_hint(void) +{ + char *ptr; + + ptr = mmap((void *) (1UL << 45), MAP_CHUNK_SIZE, PROT_READ | + PROT_WRITE, MAP_PRIVATE | MAP_ANONYMOUS, -1, 0); + + if (ptr == MAP_FAILED) + return 0; + + return 1; +} + +int main(int argc, char *argv[]) +{ + char *ptr[NR_CHUNKS_128TB]; + char *hptr[NR_CHUNKS_384TB]; + char *hint; + unsigned long i, lchunks, hchunks; + + for (i = 0; i < NR_CHUNKS_128TB; i++) { + ptr[i] = mmap(NULL, MAP_CHUNK_SIZE, PROT_READ | PROT_WRITE, + MAP_PRIVATE | MAP_ANONYMOUS, -1, 0); + + if (ptr[i] == MAP_FAILED) { + if (validate_lower_address_hint()) + return 1; + break; + } + + if (validate_addr(ptr[i], 0)) + return 1; + } + lchunks = i; + + for (i = 0; i < NR_CHUNKS_384TB; i++) { + hint = hind_addr(); + hptr[i] = mmap(hint, MAP_CHUNK_SIZE, PROT_READ | PROT_WRITE, + MAP_PRIVATE | MAP_ANONYMOUS, -1, 0); + + if (hptr[i] == MAP_FAILED) + break; + + if (validate_addr(hptr[i], 1)) + return 1; + } + hchunks = i; + + for (i = 0; i < lchunks; i++) + munmap(ptr[i], MAP_CHUNK_SIZE); + + for (i = 0; i < hchunks; i++) + munmap(hptr[i], MAP_CHUNK_SIZE); + + return 0; +} diff --git a/tools/usb/.gitignore b/tools/usb/.gitignore new file mode 100644 index 000000000000..1b7448981435 --- /dev/null +++ b/tools/usb/.gitignore @@ -0,0 +1,2 @@ +ffs-test +testusb diff --git a/tools/usb/usbip/README b/tools/usb/usbip/README index 5eb2b6c7722b..7844490fc603 100644 --- a/tools/usb/usbip/README +++ b/tools/usb/usbip/README @@ -244,7 +244,7 @@ Detach the imported device: - See 'Debug Tips' on the project wiki. - http://usbip.wiki.sourceforge.net/how-to-debug-usbip - usbip-host.ko must be bound to the target device. - - See /proc/bus/usb/devices and find "Driver=..." lines of the device. + - See /sys/kernel/debug/usb/devices and find "Driver=..." lines of the device. - Target USB gadget must be bound to vudc (using USB gadget susbsys, not usbip bind command) - Shutdown firewall. diff --git a/tools/usb/usbip/libsrc/usbip_common.c b/tools/usb/usbip/libsrc/usbip_common.c index ac73710473de..1517a232ab18 100644 --- a/tools/usb/usbip/libsrc/usbip_common.c +++ b/tools/usb/usbip/libsrc/usbip_common.c @@ -215,9 +215,16 @@ int read_usb_interface(struct usbip_usb_device *udev, int i, struct usbip_usb_interface *uinf) { char busid[SYSFS_BUS_ID_SIZE]; + int size; struct udev_device *sif; - sprintf(busid, "%s:%d.%d", udev->busid, udev->bConfigurationValue, i); + size = snprintf(busid, sizeof(busid), "%s:%d.%d", + udev->busid, udev->bConfigurationValue, i); + if (size < 0 || (unsigned int)size >= sizeof(busid)) { + err("busid length %i >= %lu or < 0", size, + (long unsigned)sizeof(busid)); + return -1; + } sif = udev_device_new_from_subsystem_sysname(udev_context, "usb", busid); if (!sif) { diff --git a/tools/usb/usbip/libsrc/usbip_host_common.c b/tools/usb/usbip/libsrc/usbip_host_common.c index 9d415228883d..6ff7b601f854 100644 --- a/tools/usb/usbip/libsrc/usbip_host_common.c +++ b/tools/usb/usbip/libsrc/usbip_host_common.c @@ -40,13 +40,20 @@ struct udev *udev_context; static int32_t read_attr_usbip_status(struct usbip_usb_device *udev) { char status_attr_path[SYSFS_PATH_MAX]; + int size; int fd; int length; char status; int value = 0; - snprintf(status_attr_path, SYSFS_PATH_MAX, "%s/usbip_status", - udev->path); + size = snprintf(status_attr_path, sizeof(status_attr_path), + "%s/usbip_status", udev->path); + if (size < 0 || (unsigned int)size >= sizeof(status_attr_path)) { + err("usbip_status path length %i >= %lu or < 0", size, + (long unsigned)sizeof(status_attr_path)); + return -1; + } + fd = open(status_attr_path, O_RDONLY); if (fd < 0) { @@ -218,6 +225,7 @@ int usbip_export_device(struct usbip_exported_device *edev, int sockfd) { char attr_name[] = "usbip_sockfd"; char sockfd_attr_path[SYSFS_PATH_MAX]; + int size; char sockfd_buff[30]; int ret; @@ -237,10 +245,20 @@ int usbip_export_device(struct usbip_exported_device *edev, int sockfd) } /* only the first interface is true */ - snprintf(sockfd_attr_path, sizeof(sockfd_attr_path), "%s/%s", - edev->udev.path, attr_name); + size = snprintf(sockfd_attr_path, sizeof(sockfd_attr_path), "%s/%s", + edev->udev.path, attr_name); + if (size < 0 || (unsigned int)size >= sizeof(sockfd_attr_path)) { + err("exported device path length %i >= %lu or < 0", size, + (long unsigned)sizeof(sockfd_attr_path)); + return -1; + } - snprintf(sockfd_buff, sizeof(sockfd_buff), "%d\n", sockfd); + size = snprintf(sockfd_buff, sizeof(sockfd_buff), "%d\n", sockfd); + if (size < 0 || (unsigned int)size >= sizeof(sockfd_buff)) { + err("socket length %i >= %lu or < 0", size, + (long unsigned)sizeof(sockfd_buff)); + return -1; + } ret = write_sysfs_attribute(sockfd_attr_path, sockfd_buff, strlen(sockfd_buff)); diff --git a/tools/usb/usbip/libsrc/vhci_driver.c b/tools/usb/usbip/libsrc/vhci_driver.c index ad9204773533..f659c146cdc8 100644 --- a/tools/usb/usbip/libsrc/vhci_driver.c +++ b/tools/usb/usbip/libsrc/vhci_driver.c @@ -123,33 +123,15 @@ static int refresh_imported_device_list(void) static int get_nports(void) { - char *c; - int nports = 0; - const char *attr_status; + const char *attr_nports; - attr_status = udev_device_get_sysattr_value(vhci_driver->hc_device, - "status"); - if (!attr_status) { - err("udev_device_get_sysattr_value failed"); + attr_nports = udev_device_get_sysattr_value(vhci_driver->hc_device, "nports"); + if (!attr_nports) { + err("udev_device_get_sysattr_value nports failed"); return -1; } - /* skip a header line */ - c = strchr(attr_status, '\n'); - if (!c) - return 0; - c++; - - while (*c != '\0') { - /* go to the next line */ - c = strchr(c, '\n'); - if (!c) - return nports; - c++; - nports += 1; - } - - return nports; + return (int)strtoul(attr_nports, NULL, 10); } /* diff --git a/tools/usb/usbip/src/usbip.c b/tools/usb/usbip/src/usbip.c index d7599d943529..73d8eee8130b 100644 --- a/tools/usb/usbip/src/usbip.c +++ b/tools/usb/usbip/src/usbip.c @@ -176,6 +176,8 @@ int main(int argc, char *argv[]) break; case '?': printf("usbip: invalid option\n"); + /* Terminate after printing error */ + /* FALLTHRU */ default: usbip_usage(); goto out; |