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KVM: arm64: selftests: get-reg-list: Provide config selection option

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Add a new command line option that allows the user to select a specific
configuration, e.g. --config=sve will give the sve config. Also provide
help text and the --help/-h options.

Signed-off-by: Andrew Jones <drjones@redhat.com>
Reviewed-by: Ricardo Koller <ricarkol@google.com>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20210531103344.29325-4-drjones@redhat.com
This commit is contained in:
Andrew Jones 2021-05-31 12:33:42 +02:00 committed by Marc Zyngier
parent 94e9223c06
commit f3032fcc9c
1 changed files with 53 additions and 3 deletions
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56
tools/testing/selftests/kvm/aarch64/get-reg-list.c
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@ -539,6 +539,52 @@ static void run_test(struct vcpu_config *c)
kvm_vm_free(vm);
}
static void help(void)
{
struct vcpu_config *c;
int i;
printf(
"\n"
"usage: get-reg-list [--config=<selection>] [--list] [--list-filtered] [--core-reg-fixup]\n\n"
" --config=<selection> Used to select a specific vcpu configuration for the test/listing\n"
" '<selection>' may be\n");
for (i = 0; i < vcpu_configs_n; ++i) {
c = vcpu_configs[i];
printf(
" '%s'\n", config_name(c));
}
printf(
"\n"
" --list Print the register list rather than test it (requires --config)\n"
" --list-filtered Print registers that would normally be filtered out (requires --config)\n"
" --core-reg-fixup Needed when running on old kernels with broken core reg listings\n"
"\n"
);
}
static struct vcpu_config *parse_config(const char *config)
{
struct vcpu_config *c;
int i;
if (config[8] != '=')
help(), exit(1);
for (i = 0; i < vcpu_configs_n; ++i) {
c = vcpu_configs[i];
if (strcmp(config_name(c), &config[9]) == 0)
break;
}
if (i == vcpu_configs_n)
help(), exit(1);
return c;
}
int main(int ac, char **av)
{
struct vcpu_config *c, *sel = NULL;
@ -547,20 +593,24 @@ int main(int ac, char **av)
for (i = 1; i < ac; ++i) {
if (strcmp(av[i], "--core-reg-fixup") == 0)
fixup_core_regs = true;
else if (strncmp(av[i], "--config", 8) == 0)
sel = parse_config(av[i]);
else if (strcmp(av[i], "--list") == 0)
print_list = true;
else if (strcmp(av[i], "--list-filtered") == 0)
print_filtered = true;
else if (strcmp(av[i], "--help") == 0 || strcmp(av[1], "-h") == 0)
help(), exit(0);
else
TEST_FAIL("Unknown option: %s\n", av[i]);
help(), exit(1);
}
if (print_list || print_filtered) {
/*
* We only want to print the register list of a single config.
* TODO: Add command line support to pick which config.
*/
sel = vcpu_configs[0];
if (!sel)
help(), exit(1);
}
for (i = 0; i < vcpu_configs_n; ++i) {