vbox的更動 9836 路徑 trunk/src/VBox/VMM/VMMAll/IOMAllMMIO.cpp

時間撮記:

2008-6-20 上午08:57:26 (16 年 以前)

作者:

vboxsync

訊息:

Fixed some inconsistencies (thanks Frank)

檔案:

• trunk/src/VBox/VMM/VMMAll/IOMAllMMIO.cpp (修改) (1 筆差異)

trunk/src/VBox/VMM/VMMAll/IOMAllMMIO.cpp

@@ -1195 +1195 @@
         STAM_COUNTER_INC(&pStats->CTXALLSUFF(Read));
 #endif
-    *pu32Value = 0;
+    /* Unassigned memory; this is actually not supposed to happen. */
+    switch (cbValue)
+    {
+        case 1: *(uint8_t *)pu32Value  = 0xff; break;
+        case 2: *(uint16_t *)pu32Value = 0xffff; break;
+        case 4: *(uint32_t *)pu32Value = 0xffffffff; break;
+        case 8: *(uint64_t *)pu32Value = 0xffffffffffffffff; break;
+        default: AssertReleaseMsgFailed(("cbValue=%d GCPhys=%VGp\n", cbValue, GCPhys)); break;
+    }
     Log4(("IOMMMIORead: GCPhys=%RGp *pu32=%08RX32 cb=%d rc=VINF_SUCCESS\n", GCPhys, *pu32Value, cbValue));
     return VINF_SUCCESS;