From 08f0434fd732441c91f0d1f535757866b3aaf8f8 Mon Sep 17 00:00:00 2001
From: Avi Kivity <avi@redhat.com>
Date: Wed, 16 Sep 2009 14:48:12 +0300
Subject: [PATCH] test: add ipi latency test

Signed-off-by: Avi Kivity <avi@redhat.com>
---
 kvm/user/test/x86/vmexit.c | 18 ++++++++++++++++++
 1 file changed, 18 insertions(+)

diff --git a/kvm/user/test/x86/vmexit.c b/kvm/user/test/x86/vmexit.c
index 76f676d48f..29bb32a118 100644
--- a/kvm/user/test/x86/vmexit.c
+++ b/kvm/user/test/x86/vmexit.c
@@ -1,5 +1,6 @@
 
 #include "libcflat.h"
+#include "smp.h"
 
 static inline unsigned long long rdtsc()
 {
@@ -51,6 +52,20 @@ static void mov_to_cr8(void)
 	asm volatile ("mov %0, %%cr8" : : "r"(cr8));
 }
 
+static int is_smp(void)
+{
+	return cpu_count() > 1;
+}
+
+static void nop(void *junk)
+{
+}
+
+static void ipi(void)
+{
+	on_cpu(1, nop, 0);
+}
+
 static struct test {
 	void (*func)(void);
 	const char *name;
@@ -60,6 +75,7 @@ static struct test {
 	{ vmcall, "vmcall", },
 	{ mov_from_cr8, "mov_from_cr8" },
 	{ mov_to_cr8, "mov_to_cr8" },
+	{ ipi, "ipi", is_smp },
 };
 
 static void do_test(struct test *test)
@@ -86,6 +102,8 @@ int main(void)
 {
 	int i;
 
+	smp_init();
+
 	for (i = 0; i < ARRAY_SIZE(tests); ++i)
 		do_test(&tests[i]);
 
-- 
2.11.4.GIT