This adds a test for int n (opcode 0xcd) instruction in the real mode test harness
Signed-off-by: Mohammed Gamal <[email protected]> --- x86/realmode.c | 20 ++++++++++++++++++++ 1 files changed, 20 insertions(+), 0 deletions(-) diff --git a/x86/realmode.c b/x86/realmode.c index bb161ac..7534da5 100644 --- a/x86/realmode.c +++ b/x86/realmode.c @@ -947,6 +947,25 @@ void test_iret() print_serial("iret Test 4: PASS\n"); } +void test_int() +{ + struct regs inregs = { 0 }, outregs; + + *(u32 *)(0x11 * 4) = 0x1000; /* Store a pointer to address 0x1000 in IDT entry 0x11 */ + *(u8 *)(0x1000) = 0xcf; /* 0x1000 contains an IRET instruction */ + + MK_INSN(int11, "int $0x11\n\t"); + + exec_in_big_real_mode(&inregs, &outregs, + insn_int11, + insn_int11_end - insn_int11); + + if (!regs_equal(&inregs, &outregs, 0)) + print_serial("int Test 1: FAIL\n"); + else + print_serial("int Test 1: PASS\n"); +} + void realmode_start(void) { test_null(); @@ -969,6 +988,7 @@ void realmode_start(void) test_long_jmp(); test_xchg(); test_iret(); + test_int(); exit(0); } -- 1.7.0.4 -- To unsubscribe from this list: send the line "unsubscribe kvm" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
