[2/2] Add test for ljmp.

Commit Message

Gleb Natapov April 27, 2010, 12:56 p.m. UTC

None

Patch

diff --git a/kvm/user/test/x86/emulator.c b/kvm/user/test/x86/emulator.c
index db84c13..4967d1f 100644
--- a/kvm/user/test/x86/emulator.c
+++ b/kvm/user/test/x86/emulator.c
@@ -183,6 +183,19 @@  void test_pop(void *mem)
 	report("ret", 1);
 }
 
+void test_ljmp(void *mem)
+{
+    unsigned char *m = mem;
+    volatile int res = 1;
+
+    *(unsigned long**)m = &&jmpf;
+    asm volatile ("data16/mov %%cs, %0":"=m"(*(m + sizeof(unsigned long))));
+    asm volatile ("rex64/ljmp *%0"::"m"(*m));
+    res = 0;
+jmpf:
+    report("ljmp", res);
+}
+
 unsigned long read_cr0(void)
 {
 	unsigned long cr0;
@@ -258,6 +271,7 @@  int main()
 
 	test_smsw();
 	test_lmsw();
+        test_ljmp(mem);
 
 	printf("\nSUMMARY: %d tests, %d failures\n", tests, fails);
 	return fails ? 1 : 0;