Signed-off-by: Avi Kivity <avi@xxxxxxxxxx> --- kvm/test/x86/emulator.c | 21 ++++++++++++++++++--- 1 files changed, 18 insertions(+), 3 deletions(-) diff --git a/kvm/test/x86/emulator.c b/kvm/test/x86/emulator.c index db6a134..476f86f 100644 --- a/kvm/test/x86/emulator.c +++ b/kvm/test/x86/emulator.c @@ -220,9 +220,10 @@ jmpf: report("ljmp", res); } -void test_incdec(void *mem) +void test_incdecnotneg(void *mem) { - unsigned long *m = mem; + unsigned long *m = mem, v = 1234; + unsigned char *mb = mem, vb = 66; *m = 0; @@ -243,6 +244,20 @@ void test_incdec(void *mem) report("lock incb", *m == 1); asm volatile ("lock decb %0":"+m"(*m)); report("lock decb", *m == 0); + + *m = v; + + asm ("lock negq %0" : "+m"(*m)); v = -v; + report("lock negl", *m == v); + asm ("lock notq %0" : "+m"(*m)); v = ~v; + report("lock notl", *m == v); + + *mb = vb; + + asm ("lock negb %0" : "+m"(*mb)); vb = -vb; + report("lock negb", *mb == vb); + asm ("lock notb %0" : "+m"(*mb)); vb = ~vb; + report("lock notb", *mb == vb); } void test_smsw(void) @@ -375,7 +390,7 @@ int main() test_lmsw(); test_ljmp(mem); test_stringio(); - test_incdec(mem); + test_incdecnotneg(mem); printf("\nSUMMARY: %d tests, %d failures\n", tests, fails); return fails ? 1 : 0; -- 1.7.1 -- To unsubscribe from this list: send the line "unsubscribe kvm" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html