linux/tools/testing/selftests
Andrei Vagin c0ba87f3e7 selftests: kvm: set rax before vmcall
[ Upstream commit 281106f938 ]

kvm_hypercall has to place the hypercall number in rax.

Trace events show that kvm_pv_test doesn't work properly:
     kvm_pv_test-53132: kvm_hypercall: nr 0x0 a0 0x0 a1 0x0 a2 0x0 a3 0x0
     kvm_pv_test-53132: kvm_hypercall: nr 0x0 a0 0x0 a1 0x0 a2 0x0 a3 0x0
     kvm_pv_test-53132: kvm_hypercall: nr 0x0 a0 0x0 a1 0x0 a2 0x0 a3 0x0

With this change, it starts working as expected:
     kvm_pv_test-54285: kvm_hypercall: nr 0x5 a0 0x0 a1 0x0 a2 0x0 a3 0x0
     kvm_pv_test-54285: kvm_hypercall: nr 0xa a0 0x0 a1 0x0 a2 0x0 a3 0x0
     kvm_pv_test-54285: kvm_hypercall: nr 0xb a0 0x0 a1 0x0 a2 0x0 a3 0x0

Signed-off-by: Andrei Vagin <avagin@google.com>
Message-Id: <20220722230241.1944655-5-avagin@google.com>
Fixes: ac4a4d6de2 ("selftests: kvm: test enforcement of paravirtual cpuid features")
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2022-08-21 15:16:03 +02:00
..
android
arm64 kselftest/arm64: signal: Skip tests if required features are missing 2021-09-30 10:11:03 +02:00
bpf selftests/bpf: fix a test for snprintf() overflow 2022-08-21 15:15:47 +02:00
breakpoints
capabilities
cgroup kseltest/cgroup: Make test_stress.sh work if run interactively 2022-06-09 10:21:30 +02:00
clone3 selftests: fixup build warnings in pidfd / clone3 tests 2022-02-23 12:01:06 +01:00
core selftests/core: fix conflicting types compile error for close_range() 2021-11-18 14:04:01 +01:00
cpu-hotplug
cpufreq
dmabuf-heaps kselftests: dmabuf-heaps: Fix Makefile's inclusion of the kernel's usr/include dir 2021-03-04 11:38:05 +01:00
drivers selftests: ocelot: tc_flower_chains: specify conform-exceed action for policer 2022-05-12 12:25:42 +02:00
efivarfs
exec selftests/exec: Add non-regular to TEST_GEN_PROGS 2022-02-23 12:01:03 +01:00
filesystems linux-kselftest-fixes-5.10-rc3 2020-11-06 15:42:42 -08:00
firmware selftests: firmware: Fix ignored return val of asprintf() warn 2021-09-18 13:40:20 +02:00
fpu
ftrace selftests/ftrace: make kprobe profile testcase description unique 2022-01-27 10:54:15 +01:00
futex selftests: futex: Use variable MAKE instead of make 2022-02-08 18:30:39 +01:00
gpio selftests/gpio: Fix build when source tree is read only 2021-06-03 09:00:31 +02:00
ia64
intel_pstate
ipc
ir
kcmp
kexec
kmod
kselftest tweewide: Fix most Shebang lines 2021-05-22 11:40:55 +02:00
kvm selftests: kvm: set rax before vmcall 2022-08-21 15:16:03 +02:00
lib
livepatch
lkdtm selftests/lkdtm: Fix expected text for CR4 pinning 2021-07-19 09:45:00 +02:00
locking
media_tests
membarrier
memfd selftests/memfd: clean up mapping in mfd_fail_write 2022-03-16 14:16:01 +01:00
memory-hotplug
mincore selftests: skip mincore.check_file_mmap when fs lacks needed support 2022-02-23 12:00:59 +01:00
mount
mqueue testing/selftests/mqueue: Fix mq_perf_tests to free the allocated cpu set 2022-04-20 09:23:17 +02:00
net selftests: forwarding: fix error message in learning_test 2022-07-12 16:32:22 +02:00
netfilter selftests: netfilter: correct PKTGEN_SCRIPT_PATHS in nft_concat_range.sh 2022-06-29 08:59:48 +02:00
nsfs
ntb
openat2 selftests: openat2: Skip testcases that fail with EOPNOTSUPP 2022-02-23 12:00:59 +01:00
pid_namespace
pidfd selftests: fixup build warnings in pidfd / clone3 tests 2022-02-23 12:01:06 +01:00
powerpc selftests/powerpc/spectre_v2: Return skip code when miss_percent is high 2022-01-27 10:54:23 +01:00
prctl
proc selftests: proc: fix warning: _GNU_SOURCE redefined 2020-11-05 10:08:14 -07:00
pstore
ptp
ptrace
rcutorture
resctrl selftests/resctrl: Fix null pointer dereference on open failed 2022-06-09 10:21:03 +02:00
rseq selftests/rseq: Change type of rseq_offset to ptrdiff_t 2022-07-07 17:52:22 +02:00
rtc selftests: rtc: Increase test timeout so that all tests run 2022-02-23 12:00:58 +01:00
safesetid
seccomp selftests/seccomp: Fix compile warning when CC=clang 2022-08-21 15:15:37 +02:00
sigaltstack
size
sparc64
splice selftests: splice: Adjust for handler fallback removal 2021-07-14 16:56:42 +02:00
static_keys
sync
sysctl
tc-testing tc-testing: fix list handling 2021-07-14 16:56:26 +02:00
timens selftests/timens: Add a test for futex() 2020-10-20 17:02:57 +02:00
timers selftests: timers: clocksource-switch: fix passing errors from child 2022-08-21 15:15:47 +02:00
tmpfs
tpm2
uevent
user
vDSO
vm selftests: vm: Makefile: rename TARGETS to VMTARGETS 2022-05-18 10:23:44 +02:00
watchdog
wireguard wireguard: device: reset peer src endpoint when netns exits 2021-12-08 09:03:22 +01:00
x86 selftests, x86: fix how check_cc.sh is being invoked 2022-04-08 14:40:04 +02:00
zram selftests/zram: Adapt the situation that /dev/zram0 is being used 2022-02-23 12:00:58 +01:00
.gitignore
gen_kselftest_tar.sh
kselftest_deps.sh
kselftest_harness.h kselftest: signal all child processes 2022-02-23 12:00:58 +01:00
kselftest_install.sh
kselftest_module.h
kselftest.h
lib.mk selftests: be sure to make khdr before other targets 2021-10-09 14:40:57 +02:00
Makefile selftests: Extract run_kselftest.sh and generate stand-alone test list 2020-10-07 07:58:54 -06:00
run_kselftest.sh selftests/run_kselftest.sh: fix dry-run typo 2020-12-30 11:53:07 +01:00