[PATCH kvm-unit-tests 06/12] realmode: test sigt/sgdt

[Avi Kivity]

Signed-off-by: Avi Kivity <a...@redhat.com>
---
 x86/realmode.c | 18 ++++++++++++++++++
 1 file changed, 18 insertions(+)

diff --git a/x86/realmode.c b/x86/realmode.c
index b1d089a..98a25c2 100644
--- a/x86/realmode.c
+++ b/x86/realmode.c
@@ -1318,6 +1318,23 @@ static void test_ss_base_for_esp_ebp(void)
     report("ss relative addressing (2)", R_AX | R_BX, outregs.ebx == 
0x87654321);
 }
 
+static void test_sgdt_sidt(void)
+{
+    MK_INSN(sgdt, "sgdtw (%eax)");
+    MK_INSN(sidt, "sidtw (%eax)");
+    unsigned x, y;
+
+    inregs.eax = (unsigned)&y;
+    asm volatile("sgdtw %0" : "=m"(x));
+    exec_in_big_real_mode(&insn_sgdt);
+    report("sgdt", 0, x == y);
+
+    inregs.eax = (unsigned)&y;
+    asm volatile("sidtw %0" : "=m"(x));
+    exec_in_big_real_mode(&insn_sidt);
+    report("sidt", 0, x == y);
+}
+
 void realmode_start(void)
 {
        test_null();
@@ -1353,6 +1370,7 @@ void realmode_start(void)
        test_jcxz();
        test_cpuid();
        test_ss_base_for_esp_ebp();
+       test_sgdt_sidt();
 
        exit(0);
 }
-- 
1.7.11

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