So one can measure SMP overhead.
Signed-off-by: Marcelo Tosatti <[email protected]>
Index: qemu-kvm-test/kvm/user/test/x86/vmexit.c
===================================================================
--- qemu-kvm-test.orig/kvm/user/test/x86/vmexit.c
+++ qemu-kvm-test/kvm/user/test/x86/vmexit.c
@@ -85,6 +85,9 @@ static struct test {
{ vmcall, "vmcall", },
{ mov_from_cr8, "mov_from_cr8" },
{ mov_to_cr8, "mov_to_cr8" },
+};
+
+static struct test smp_tests[] = {
{ ipi, "ipi", is_smp },
{ ipi_halt, "ipi+halt", is_smp },
};
@@ -113,14 +116,25 @@ static void do_test(struct test *test)
#define ARRAY_SIZE(_x) (sizeof(_x) / sizeof((_x)[0]))
-int main(void)
+static void do_tests(void *junk)
{
int i;
- smp_init();
-
for (i = 0; i < ARRAY_SIZE(tests); ++i)
do_test(&tests[i]);
+}
+
+int main(void)
+{
+ int i, n;
+
+ smp_init();
+
+ for (n = cpu_count(); n > 0; n--)
+ on_cpu(n-1, do_tests, 0, 0);
+
+ for (i = 0; i < ARRAY_SIZE(smp_tests); ++i)
+ do_test(&smp_tests[i]);
return 0;
}
--
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