[QEMU-KVM,2/2] test: Add vmcall latency test

Commit Message

Avi Kivity Sept. 13, 2009, 4:09 p.m. UTC

Signed-off-by: Avi Kivity <[e-mail]>
---
 kvm/user/test/x86/vmexit.c |    8 ++++++++
 1 files changed, 8 insertions(+), 0 deletions(-)

Patch

diff --git a/kvm/user/test/x86/vmexit.c b/kvm/user/test/x86/vmexit.c
index 364837f..bd1895f 100644
--- a/kvm/user/test/x86/vmexit.c
+++ b/kvm/user/test/x86/vmexit.c
@@ -30,11 +30,19 @@  static void cpuid(void)
 		      : : : "eax", "ecx", "edx");
 }
 
+static void vmcall(void)
+{
+	unsigned long a = 0, b, c, d;
+
+	asm volatile ("vmcall" : "+a"(a), "=b"(b), "=c"(c), "=d"(d));
+}
+
 static struct test {
 	void (*func)(void);
 	const char *name;
 } tests[] = {
 	{ cpuid, "cpuid", },
+	{ vmcall, "vmcall", },
 };
 
 static void do_test(struct test *test)