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24fa5d1efe98bc09a96ba41fdba96ef715aede77
linux/tools/testing/selftests
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Mathieu Desnoyers 24fa5d1efe rseq/selftests: x86: use ud1 instruction as RSEQ_SIG opcode 
Use ud1 as the guard instruction for the restartable sequence abort
handler. Its benefit compared to nopl is to trap execution if the
program ends up trying to execute it by mistake, which makes debugging
easier.

The 4-byte signature per se is unchanged (it is the instruction
operand). Only the opcode is changed from nopl to ud1.

Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Suggested-by: Peter Zijlstra <peterz@infradead.org>
CC: Peter Zijlstra <peterz@infradead.org>
CC: Thomas Gleixner <tglx@linutronix.de>
CC: Joel Fernandes <joelaf@google.com>
CC: Catalin Marinas <catalin.marinas@arm.com>
CC: Dave Watson <davejwatson@fb.com>
CC: Will Deacon <will.deacon@arm.com>
CC: Shuah Khan <shuah@kernel.org>
CC: Andi Kleen <andi@firstfloor.org>
CC: linux-kselftest@vger.kernel.org
CC: "H . Peter Anvin" <hpa@zytor.com>
CC: Chris Lameter <cl@linux.com>
CC: Russell King <linux@arm.linux.org.uk>
CC: Michael Kerrisk <mtk.manpages@gmail.com>
CC: "Paul E . McKenney" <paulmck@linux.vnet.ibm.com>
CC: Paul Turner <pjt@google.com>
CC: Boqun Feng <boqun.feng@gmail.com>
CC: Josh Triplett <josh@joshtriplett.org>
CC: Steven Rostedt <rostedt@goodmis.org>
CC: Ben Maurer <bmaurer@fb.com>
CC: linux-api@vger.kernel.org
CC: Andy Lutomirski <luto@amacapital.net>
CC: Andrew Morton <akpm@linux-foundation.org>
CC: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
2019-05-07 15:32:05 -06:00
..
android
…
bpf
net/flow_dissector: pass flow_keys->n_proto to BPF programs
2019-04-03 16:49:48 +02:00
breakpoints
selftests: Add test plan API to kselftest.h and adjust callers
2019-04-25 13:15:46 -06:00
capabilities
selftests: Add test plan API to kselftest.h and adjust callers
2019-04-25 13:15:46 -06:00
cgroup
selftests: cgroup: fix cleanup path in test_memcg_subtree_control()
2019-04-08 16:44:22 -06:00
cpu-hotplug
selftests: cpu-hotplug: fix case where CPUs offline > CPUs present
2019-01-25 14:57:45 -07:00
cpufreq
…
drivers
selftests: mlxsw: spectrum-2: Add massive delta rehash test
2019-02-24 20:25:29 -08:00
efivarfs
selftests/efivarfs: clean up test files from test_create*()
2019-04-19 17:17:19 -06:00
exec
…
filesystems
selftests: add binderfs selftests
2019-01-30 15:19:56 +01:00
firmware
selftests: firmware: fix verify_reqs() return value
2019-02-08 13:00:43 +01:00
ftrace
Merge tag 'trace-v5.1' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace
2019-03-11 17:01:32 -07:00
futex
selftests: Add test plan API to kselftest.h and adjust callers
2019-04-25 13:15:46 -06:00
gpio
selftest/gpio: Remove duplicate header
2019-04-08 16:18:21 -06:00
ia64
…
intel_pstate
…
ipc
selftests/ipc: Fix msgque compiler warnings
2019-04-19 17:18:00 -06:00
ir
Merge tag 'media/v5.1-1' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media
2019-03-09 14:45:54 -08:00
kcmp
…
kexec
selftests/kexec: update get_secureboot_mode
2019-04-17 15:32:44 -06:00
kmod
…
kselftest
selftests: Remove KSFT_TAP_LEVEL
2019-04-25 13:15:26 -06:00
kvm
KVM: selftests: complete IO before migrating guest state
2019-03-28 17:29:09 +01:00
lib
lib: Add test module for strscpy_pad
2019-04-08 16:44:21 -06:00
livepatch
livepatch/selftests: use "$@" to preserve argument list
2019-02-12 10:58:47 +01:00
locking
…
media_tests
…
membarrier
selftests: Add test plan API to kselftest.h and adjust callers
2019-04-25 13:15:46 -06:00
memfd
selftests/memfd: add tests for F_SEAL_FUTURE_WRITE seal
2019-03-05 21:07:19 -08:00
memory-hotplug
…
mount
…
mqueue
…
net
selftest/net: Remove duplicate header
2019-03-04 11:35:51 -08:00
netfilter
selftests: netfilter: add simple masq/redirect test cases
2019-02-04 14:21:27 +01:00
networking/timestamping
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
2019-02-15 12:38:38 -08:00
nsfs
…
ntb
…
pidfd
selftests: Add test plan API to kselftest.h and adjust callers
2019-04-25 13:15:46 -06:00
powerpc
selftests/powerpc: Remove duplicate header
2019-02-26 12:32:06 +11:00
prctl
…
proc
tools/testing/selftests/proc/proc-pid-vm.c: test with vsyscall in mind
2019-03-14 14:36:20 -07:00
pstore
…
ptp
…
ptrace
…
rcutorture
tools headers: Move the nolibc header from rcutorture to tools/include/nolibc/
2019-01-25 15:37:13 -08:00
rseq
rseq/selftests: x86: use ud1 instruction as RSEQ_SIG opcode
2019-05-07 15:32:05 -06:00
rtc
selftests: rtc: rtctest: add alarm test on minute boundary
2019-01-14 18:49:14 -07:00
safesetid
LSM: SafeSetID: add selftest
2019-02-12 10:58:51 -08:00
seccomp
selftests/seccomp: Handle namespace failures gracefully
2019-04-16 17:04:08 -06:00
sigaltstack
selftests: Add test plan API to kselftest.h and adjust callers
2019-04-25 13:15:46 -06:00
size
…
sparc64
…
splice
…
static_keys
…
sync
selftests: Add test plan API to kselftest.h and adjust callers
2019-04-25 13:15:46 -06:00
sysctl
tools/testing/selftests/sysctl/sysctl.sh: add tests for >32-bit values written to 32-bit integers
2019-03-12 10:04:00 -07:00
tc-testing
net/sched: act_sample: fix divide by zero in the traffic path
2019-04-04 10:46:33 -07:00
timers
selftest/timers: Remove duplicate header
2019-04-08 16:18:21 -06:00
tmpfs
tmpfs: test link accounting with O_TMPFILE
2019-03-05 21:07:20 -08:00
tpm2
selftests: add TPM 2.0 tests
2019-02-08 23:13:02 +02:00
uevent
…
user
…
vDSO
…
vm
tools: mark 'test_vmalloc.sh' executable
2019-03-11 10:10:29 -07:00
watchdog
…
x86
selftest/x86/mpx-dig.c: Remove duplicate header
2019-04-08 16:18:21 -06:00
zram
…
.gitignore
selftests: Extract single-test shell logic from lib.mk
2019-04-25 13:14:13 -06:00
gen_kselftest_tar.sh
…
kselftest_harness.h
selftests/harness: Add 30 second timeout per test
2019-04-16 17:04:34 -06:00
kselftest_install.sh
…
kselftest_module.h
kselftest: Add test module framework header
2019-04-08 16:44:20 -06:00
kselftest_module.sh
kselftest: Add test runner creation script
2019-04-08 16:44:11 -06:00
kselftest.h
selftests: Add test plan API to kselftest.h and adjust callers
2019-04-25 13:15:46 -06:00
lib.mk
selftests: Move test output to diagnostic lines
2019-04-25 13:15:19 -06:00
Makefile
selftests: Remove KSFT_TAP_LEVEL
2019-04-25 13:15:26 -06:00