AuxXxilium/linux_dsm_epyc7002
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1186f86a71
linux_dsm_epyc7002/tools/testing/selftests
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Vitaly Kuznetsov ef40598098 selftests: kvm: fix sync_regs_test with newer gccs 
Commit 204c91eff7 ("KVM: selftests: do not blindly clobber registers in
 guest asm") was intended to make test more gcc-proof, however, the result
is exactly the opposite: on newer gccs (e.g. 8.2.1) the test breaks with

==== Test Assertion Failure ====
  x86_64/sync_regs_test.c:168: run->s.regs.regs.rbx == 0xBAD1DEA + 1
  pid=14170 tid=14170 - Invalid argument
     1	0x00000000004015b3: main at sync_regs_test.c:166 (discriminator 6)
     2	0x00007f413fb66412: ?? ??:0
     3	0x000000000040191d: _start at ??:?
  rbx sync regs value incorrect 0x1.

Apparently, compile is still free to play games with registers even
when they have variables attached.

Re-write guest code with 'asm volatile' by embedding ucall there and
making sure rbx is preserved.

Fixes: 204c91eff7 ("KVM: selftests: do not blindly clobber registers in guest asm")
Signed-off-by: Vitaly Kuznetsov <vkuznets@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2019-10-22 13:31:18 +02:00
..
android treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 282 2019-06-05 17:36:37 +02:00
arm64 selftests, arm64: add kernel headers path for tags_test 2019-09-17 12:11:50 +01:00
bpf selftests/bpf: More compatible nc options in test_lwt_ip_encap 2019-10-08 23:59:22 +02:00
breakpoints treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 282 2019-06-05 17:36:37 +02:00
capabilities selftests: Add test plan API to kselftest.h and adjust callers 2019-04-25 13:15:46 -06:00
cgroup kselftests: cgroup: add freezer mkdir test 2019-09-12 14:04:40 -07:00
cpu-hotplug
cpufreq
drivers mlxsw: spectrum: Clear VLAN filters during port initialization 2019-09-27 20:33:19 +02:00
efivarfs treewide: Add SPDX license identifier - Makefile/Kconfig 2019-05-21 10:50:46 +02:00
exec treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 166 2019-05-30 11:26:39 -07:00
filesystems
firmware selftests: firmware: Add request_firmware_into_buf tests 2019-09-04 13:31:28 +02:00
ftrace A few more tracing fixes: 2019-09-30 09:29:53 -07:00
futex treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
gpio treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
ia64 treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
intel_pstate
ipc selftests/ipc: Fix msgque compiler warnings 2019-04-19 17:18:00 -06:00
ir media: selftests: ir: fix ir_loopback test failure 2019-08-14 05:06:25 -03:00
kcmp treewide: Add SPDX license identifier - Makefile/Kconfig 2019-05-21 10:50:46 +02:00
kexec sefltest/ima: support appended signatures (modsig) 2019-08-29 12:45:30 -04:00
kmod selftests: kmod: Fix typo in kmod.sh 2019-07-23 10:45:06 -06:00
kselftest selftests/kselftest/runner.sh: Add 45 second timeout per test 2019-10-01 13:33:28 -06:00
kvm selftests: kvm: fix sync_regs_test with newer gccs 2019-10-22 13:31:18 +02:00
lib treewide: Add SPDX license identifier - Makefile/Kconfig 2019-05-21 10:50:46 +02:00
livepatch selftests: livepatch: add missing fragments to config 2019-09-23 08:33:16 -06:00
locking
media_tests media: selftests: media_dev_allocator api test 2019-04-22 11:23:14 -04:00
membarrier selftests, sched/membarrier: Add multi-threaded test 2019-09-25 17:42:31 +02:00
memfd
memory-hotplug
mount
mqueue
net selftests/net: add nettest to .gitignore 2019-10-04 18:36:34 -07:00
netfilter selftests: netfilter: extend flowtable test script for ipsec 2019-08-05 11:29:50 +02:00
networking/timestamping selftests: timestamping: Fix SIOCGSTAMP undeclared build failure 2019-06-28 14:31:12 -06:00
nsfs treewide: Add SPDX license identifier - Makefile/Kconfig 2019-05-21 10:50:46 +02:00
ntb New feature to add support for NTB virtual MSI interrupts, the ability 2019-07-21 09:46:59 -07:00
pidfd selftests: pidfd: Fix undefined reference to pthread_create() 2019-09-30 22:32:55 +02:00
powerpc selftests/powerpc: Fix compile error on tlbie_test due to newer gcc 2019-10-09 17:16:59 +11:00
prctl
proc proc: test /proc/sysvipc vs setns(CLONE_NEWIPC) 2019-07-16 19:23:21 -07:00
pstore treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 472 2019-06-19 17:09:11 +02:00
ptp selftests: ptp: Add Physical Hardware Clock test 2019-06-13 22:34:55 -07:00
ptrace selftests/ptrace: add a test case for PTRACE_GET_SYSCALL_INFO 2019-07-16 19:23:24 -07:00
rcutorture rcutorture: Test TREE03 with the threadirqs kernel boot parameter 2019-08-01 14:30:22 -07:00
rseq rseq/selftests: Fix Thumb mode build failure on arm32 2019-07-08 13:00:41 -06:00
rtc selftests/kselftest/runner.sh: Add 45 second timeout per test 2019-10-01 13:33:28 -06:00
safesetid LSM: SafeSetID: verify transitive constrainedness 2019-07-15 08:07:51 -07:00
seccomp selftests/seccomp: fix build on older kernels 2019-09-23 08:33:16 -06:00
sigaltstack treewide: Add SPDX license identifier - Makefile/Kconfig 2019-05-21 10:50:46 +02:00
size treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 166 2019-05-30 11:26:39 -07:00
sparc64
splice
static_keys treewide: Add SPDX license identifier - Makefile/Kconfig 2019-05-21 10:50:46 +02:00
sync selftests: Add test plan API to kselftest.h and adjust callers 2019-04-25 13:15:46 -06:00
sysctl treewide: Add SPDX license identifier - Makefile/Kconfig 2019-05-21 10:50:46 +02:00
tc-testing Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2019-09-02 11:20:17 -07:00
timers kselftests: timers: freq-step: Update maximum acceptable precision and errors 2019-06-22 11:28:53 +02:00
tmpfs treewide: Add SPDX license identifier - Makefile/Kconfig 2019-05-21 10:50:46 +02:00
tpm2 selftests/tpm2: Add the missing TEST_FILES assignment 2019-09-25 02:43:48 +03:00
uevent
user treewide: Add SPDX license identifier - Makefile/Kconfig 2019-05-21 10:50:46 +02:00
vDSO treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 180 2019-05-30 11:29:20 -07:00
vm mm/gup_benchmark: add a missing "w" to getopt string 2019-10-19 06:32:32 -04:00
watchdog selftests: watchdog: Add command line option to show watchdog_info 2019-10-02 13:44:43 -06:00
x86 Merge branch 'x86-entry-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2019-09-16 19:06:29 -07:00
zram docs: blockdev: add it to the admin-guide 2019-07-15 11:03:01 -03:00
.gitignore selftests/tpm2: Add log and *.pyc to .gitignore 2019-09-25 02:43:51 +03:00
gen_kselftest_tar.sh
kselftest_harness.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 481 2019-06-19 17:09:51 +02:00
kselftest_install.sh selftests: Add kselftest-all and kselftest-install targets 2019-10-01 10:11:08 -06:00
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 kselftest: save-and-restore errno to allow for %m formatting 2019-07-30 15:46:48 -06:00
lib.mk kbuild: replace KBUILD_SRCTREE with boolean building_out_of_srctree 2019-07-11 00:05:09 +09:00
Makefile kselftest: exclude failed TARGETS from runlist 2019-10-01 13:28:38 -06:00