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KVM: riscv: selftests: Add commandline option for SBI PMU test

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SBI PMU test comprises of multiple tests and user may want to run
only a subset depending on the platform. The most common case would
be to run all to validate all the tests. However, some platform may
not support all events or all ISA extensions.

The commandline option allows user to disable any set of tests if
they want to.

Suggested-by: Andrew Jones <ajones@ventanamicro.com>
Signed-off-by: Atish Patra <atishp@rivosinc.com>
Reviewed-by: Anup Patel <anup@brainfault.org>
Link: https://lore.kernel.org/r/20240420151741.962500-25-atishp@rivosinc.com
Signed-off-by: Anup Patel <anup@brainfault.org>
This commit is contained in:
Atish Patra 2024-04-20 08:17:40 -07:00 committed by Anup Patel
parent 4ace2573d1
commit 5ef2f3d4e7
1 changed files with 64 additions and 9 deletions
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73
tools/testing/selftests/kvm/riscv/sbi_pmu_test.c
View File

@ -33,6 +33,13 @@ static unsigned long counter_mask_available;
static bool illegal_handler_invoked;
#define SBI_PMU_TEST_BASIC BIT(0)
#define SBI_PMU_TEST_EVENTS BIT(1)
#define SBI_PMU_TEST_SNAPSHOT BIT(2)
#define SBI_PMU_TEST_OVERFLOW BIT(3)
static int disabled_tests;
unsigned long pmu_csr_read_num(int csr_num)
{
#define switchcase_csr_read(__csr_num, __val) {\
@ -608,19 +615,67 @@ static void test_vm_events_overflow(void *guest_code)
test_vm_destroy(vm);
}
int main(void)
static void test_print_help(char *name)
{
test_vm_basic_test(test_pmu_basic_sanity);
pr_info("SBI PMU basic test : PASS\n");
pr_info("Usage: %s [-h] [-d <test name>]\n", name);
pr_info("\t-d: Test to disable. Available tests are 'basic', 'events', 'snapshot', 'overflow'\n");
pr_info("\t-h: print this help screen\n");
}
test_vm_events_test(test_pmu_events);
pr_info("SBI PMU event verification test : PASS\n");
static bool parse_args(int argc, char *argv[])
{
int opt;
test_vm_events_snapshot_test(test_pmu_events_snaphost);
pr_info("SBI PMU event verification with snapshot test : PASS\n");
while ((opt = getopt(argc, argv, "hd:")) != -1) {
switch (opt) {
case 'd':
if (!strncmp("basic", optarg, 5))
disabled_tests |= SBI_PMU_TEST_BASIC;
else if (!strncmp("events", optarg, 6))
disabled_tests |= SBI_PMU_TEST_EVENTS;
else if (!strncmp("snapshot", optarg, 8))
disabled_tests |= SBI_PMU_TEST_SNAPSHOT;
else if (!strncmp("overflow", optarg, 8))
disabled_tests |= SBI_PMU_TEST_OVERFLOW;
else
goto done;
break;
case 'h':
default:
goto done;
}
}
test_vm_events_overflow(test_pmu_events_overflow);
pr_info("SBI PMU event verification with overflow test : PASS\n");
return true;
done:
test_print_help(argv[0]);
return false;
}
int main(int argc, char *argv[])
{
if (!parse_args(argc, argv))
exit(KSFT_SKIP);
if (!(disabled_tests & SBI_PMU_TEST_BASIC)) {
test_vm_basic_test(test_pmu_basic_sanity);
pr_info("SBI PMU basic test : PASS\n");
}
if (!(disabled_tests & SBI_PMU_TEST_EVENTS)) {
test_vm_events_test(test_pmu_events);
pr_info("SBI PMU event verification test : PASS\n");
}
if (!(disabled_tests & SBI_PMU_TEST_SNAPSHOT)) {
test_vm_events_snapshot_test(test_pmu_events_snaphost);
pr_info("SBI PMU event verification with snapshot test : PASS\n");
}
if (!(disabled_tests & SBI_PMU_TEST_OVERFLOW)) {
test_vm_events_overflow(test_pmu_events_overflow);
pr_info("SBI PMU event verification with overflow test : PASS\n");
}
return 0;
}