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linux-uconsole/tools/testing/selftests
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Naveen N. Rao d2bf793237 selftests/powerpc: Add test to verify rfi flush across a system call 
This adds a test to verify proper functioning of the rfi flush
capability implemented to mitigate meltdown. The test works by
measuring the number of L1d cache misses encountered while loading
data from memory. Across a system call, since the L1d cache is flushed
when rfi_flush is enabled, the number of cache misses is expected to
be relative to the number of cachelines corresponding to the data
being loaded.

The current system setting is reflected via powerpc/rfi_flush under
debugfs (assumed to be /sys/kernel/debug/). This test verifies the
expected result with rfi_flush enabled as well as when it is disabled.

Signed-off-by: Anton Blanchard <anton@samba.org>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Signed-off-by: Naveen N. Rao <naveen.n.rao@linux.vnet.ibm.com>
[mpe: Add SPDX tags, clang format, skip if the debugfs is missing, use
 __u64 and SANE_USERSPACE_TYPES to avoid printf() build errors.]
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
2018-10-20 13:26:47 +11:00
..
android selftests/android: initialize heap_type to avoid compiling warning 2018-07-11 10:13:17 -06:00
bpf tools/bpf: fix bpf selftest test_cgroup_storage failure 2018-08-17 12:23:47 -07:00
breakpoints selftests: breakpoints: return Kselftest Skip code for skipped tests 2018-05-30 15:21:52 -06:00
capabilities
cgroup selftests: cgroup: add gitignore file 2018-08-09 11:23:32 -06:00
cpu-hotplug selftests: cpu-hotplug: return Kselftest Skip code for skipped tests 2018-05-30 15:21:52 -06:00
cpufreq selftests: cpufreq: return Kselftest Skip code for skipped tests 2018-05-30 15:21:52 -06:00
drivers USB/PHY patches for 4.19-rc1 2018-08-18 10:21:49 -07:00
efivarfs selftests: efivarfs: return Kselftest Skip code for skipped tests 2018-05-30 15:21:52 -06:00
exec selftests: exec: return Kselftest Skip code for skipped tests 2018-05-30 15:21:52 -06:00
filesystems selftests: filesystems: return Kselftest Skip code for skipped tests 2018-05-30 15:21:52 -06:00
firmware selftests: firmware: return Kselftest Skip code for skipped tests 2018-05-30 15:21:52 -06:00
ftrace selftests/ftrace: Fix kprobe string testcase to not probe notrace function 2018-08-09 11:26:33 -06:00
futex selftests: futex: delete RUN_TESTS and EMIT_TESTS overrides 2018-05-30 15:21:52 -06:00
gpio gpio: selftests: gpio-mockup-chardev GPIOHANDLE_REQUEST_OUTPUT fix 2018-07-09 16:08:17 +02:00
ia64
intel_pstate selftests: intel_pstate: notification about privilege required to run intel_pstate testing script 2018-05-30 21:31:31 -06:00
ipc selftests: ipc: return Kselftest Skip code for skipped tests 2018-05-30 15:21:53 -06:00
kcmp
kmod selftests: kmod: return Kselftest Skip code for skipped tests 2018-05-30 15:21:53 -06:00
kvm kvm: selftest: add dirty logging test 2018-08-22 16:48:39 +02:00
lib selftests: lib: fix prime_numbers module search and skip logic 2018-05-30 21:32:55 -06:00
locking selftests: locking: return Kselftest Skip code for skipped tests 2018-05-30 15:29:06 -06:00
media_tests selftests: media_tests: return Kselftest Skip code for skipped tests 2018-05-30 15:29:06 -06:00
membarrier selftests: membarrier: return Kselftest Skip code for skipped tests 2018-05-30 15:29:06 -06:00
memfd selftests: memfd: split regular and hugetlbfs tests 2018-05-30 15:29:06 -06:00
memory-hotplug selftests: memory-hotplug: return Kselftest Skip code for skipped tests 2018-05-30 15:29:06 -06:00
mount selftests: mount: remove no longer needed config option 2018-08-09 11:26:07 -06:00
mqueue selftests: mqueue: return Kselftest Skip code for skipped tests 2018-05-30 15:29:06 -06:00
net selftests: pmtu: detect correct binary to ping ipv6 addresses 2018-08-31 23:14:20 -07:00
networking/timestamping
nsfs
ntb
powerpc selftests/powerpc: Add test to verify rfi flush across a system call 2018-10-20 13:26:47 +11:00
prctl
proc proc: test /proc/thread-self symlink 2018-08-22 10:52:45 -07:00
pstore selftests: pstore: return Kselftest Skip code for skipped tests 2018-06-18 09:11:09 -06:00
ptp
ptrace
rcutorture rcutorture: Change units of onoff_interval to jiffies 2018-07-12 15:42:01 -07:00
rseq arm64 updates for 4.19 2018-08-14 16:39:13 -07:00
rtc selftests: rtc: rework rtctest 2018-05-30 15:21:51 -06:00
seccomp seccomp: Add filter flag to opt-out of SSB mitigation 2018-05-05 00:51:44 +02:00
sigaltstack
size
sparc64 selftests: sparc64: Add missing SPDX License Identifiers 2018-06-18 09:29:20 -06:00
splice
static_keys selftests: static_keys: return Kselftest Skip code for skipped tests 2018-06-18 09:11:09 -06:00
sync selftests: sync: add config fragment for testing sync framework 2018-06-18 09:11:10 -06:00
sysctl selftests: sysctl: return Kselftest Skip code for skipped tests 2018-06-18 09:11:09 -06:00
tc-testing tc-testing: add test-cases for numeric and invalid control action 2018-08-29 22:10:59 -07:00
timers selftest: timers: Tweak raw_skew to SKIP when ADJ_OFFSET/other clock adjustments are in progress 2018-07-10 12:43:21 -07:00
uevent selftests: uevent filtering 2018-05-23 15:24:22 -04:00
user selftests: user: return Kselftest Skip code for skipped tests 2018-06-18 09:11:09 -06:00
vDSO selftests: vDSO - fix to return KSFT_SKIP when test couldn't be run 2018-07-11 10:14:26 -06:00
vm tools/testing/selftests/vm/: add MAP_POPULATE test 2018-08-22 10:52:45 -07:00
watchdog
x86 selftests/x86/sigreturn: Do minor cleanups 2018-06-27 09:36:56 +02:00
zram selftests: zram: return Kselftest Skip code for skipped tests 2018-06-18 09:11:09 -06:00
.gitignore
gen_kselftest_tar.sh
kselftest.h selftests: kselftest: change KSFT_SKIP=4 instead of KSFT_PASS 2018-05-30 15:21:52 -06:00
kselftest_harness.h selftests/seccomp: Allow get_metadata to XFAIL 2018-03-21 10:42:46 -06:00
kselftest_install.sh
lib.mk Merge branch 'core-rseq-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2018-06-10 10:17:09 -07:00
Makefile Merge branch 'core-rseq-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2018-06-10 10:17:09 -07:00