Changeset 15633 in vbox for trunk/src/VBox/VMM

Timestamp:

Dec 17, 2008 3:08:11 PM (16 years ago)

Author:

vboxsync

svn:sync-xref-src-repo-rev:

41155

Message:

Smsw emlution (inactive).

Location:

trunk/src/VBox/VMM

Files:

• EMInternal.h (modified) (2 diffs)
• VMMAll/EMAll.cpp (modified) (2 diffs)

trunk/src/VBox/VMM/EMInternal.h

@@ -148 +148 @@
     STAMCOUNTER             StatRZLmsw;
     STAMCOUNTER             StatR3Lmsw;
+    STAMCOUNTER             StatRZSmsw;
+    STAMCOUNTER             StatR3Smsw;
 
     STAMCOUNTER             StatRZInterpretFailed;
@@ -200 +202 @@
     STAMCOUNTER             StatRZFailedLmsw;
     STAMCOUNTER             StatR3FailedLmsw;
+    STAMCOUNTER             StatRZFailedSmsw;
+    STAMCOUNTER             StatR3FailedSmsw;
 
     STAMCOUNTER             StatRZFailedAdd;

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

@@ -2214 +2214 @@
     return EMInterpretLMSW(pVM, pRegFrame, val);
 }
+
+#ifdef EM_EMULATE_SMSW
+/**
+ * SMSW Emulation.
+ */
+static int emInterpretSmsw(PVM pVM, PDISCPUSTATE pCpu, PCPUMCTXCORE pRegFrame, RTGCPTR pvFault, uint32_t *pcbSize)
+{
+    OP_PARAMVAL param1;
+    uint64_t    cr0 = CPUMGetGuestCR0(pVM);
+
+    int rc = DISQueryParamVal(pRegFrame, pCpu, &pCpu->param1, &param1, PARAM_SOURCE);
+    if(RT_FAILURE(rc))
+        return VERR_EM_INTERPRETER;
+
+    switch(param1.type)
+    {
+    case PARMTYPE_IMMEDIATE:
+        if(!(param1.flags & PARAM_VAL16))
+            return VERR_EM_INTERPRETER;
+        rc = DISWriteReg16(pRegFrame, pCpu->param1.base.reg_gen, cr0);
+        break;
+
+    case PARMTYPE_ADDRESS:
+    {
+        RTGCPTR pParam1;
+
+        /* Actually forced to 16 bits regardless of the operand size. */
+        if(!(param1.flags & PARAM_VAL16))
+            return VERR_EM_INTERPRETER;
+
+        pParam1 = (RTGCPTR)param1.val.val64;
+        pParam1 = emConvertToFlatAddr(pVM, pRegFrame, pCpu, &pCpu->param1, pParam1);
+
+        rc = emRamWrite(pVM, pParam1, &cr0, sizeof(uint16_t));
+        if (RT_FAILURE(rc))
+        {
+            AssertMsgFailed(("emRamWrite %RGv size=%d failed with %Rrc\n", pParam1, param1.size, rc));
+            return VERR_EM_INTERPRETER;
+        }
+        break;
+    }
+
+    default:
+        return VERR_EM_INTERPRETER;
+    }
+
+    LogFlow(("emInterpretSmsw %x\n", cr0));
+    return rc;
+}
+#endif
 
 /**
@@ -3097 +3147 @@
 #endif
         INTERPRET_CASE(OP_LMSW,Lmsw);
+#ifdef EM_EMULATE_SMSW
+        INTERPRET_CASE(OP_SMSW,Smsw);
+#endif
         INTERPRET_CASE(OP_CLTS,Clts);
         INTERPRET_CASE(OP_MONITOR, Monitor);