On Thu, 16 May 2024 09:26:33 +0530 Dev Jain <dev.jain@xxxxxxx> wrote:
> Post FEAT_LPA2, Aarch64 extends the 4KB and 16KB translation granule to
> large virtual addresses. Currently, the test is being skipped for said
> granule sizes, because the page sizes have been statically defined; to
> work around that would mean breaking the nice array of structs used for
> adding testcases.
Which array is that? testcases[]? If so, we could keep if fairly nice
by doing the array population at runtime. Something like:
static struct testcase *testcases;
static void init_thing()
{
struct testcase t[] = {
...
};
testcases = malloc(sizeof(t));
memcpy(testcases, t, sizeof(t));
}
>
> +#if defined(__aarch64__)
> +void failure_message(void)
> +{
> + printf("TEST MAY FAIL: Are you running on a pagesize other than 64K?\n");
> + printf("If yes, please change macros manually. Ensure to change the\n");
> + printf("address macros too if running defconfig on 16K pagesize,\n");
> + printf("since userspace VA = 47 bits post FEAT_LPA2.\n");
> +}
> +#else
> +void failure_message(void) {}
> +#endif
> +
> int main(int argc, char **argv)
> {
> int ret;
> @@ -308,5 +320,8 @@ int main(int argc, char **argv)
> ret = run_test(testcases, ARRAY_SIZE(testcases));
> if (argc == 2 && !strcmp(argv[1], "--run-hugetlb"))
> ret = run_test(hugetlb_testcases, ARRAY_SIZE(hugetlb_testcases));
> +
> + if (ret)
> + failure_message();
> return ret;
> }
This seems rather lame :(. It would be nice to fix this for once and
for all.
