Changeset 86146 in vbox for trunk/src/VBox/VMM/VMMR3

Timestamp:

Sep 17, 2020 11:20:34 AM (5 years ago)

Author:

vboxsync

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

140391

Message:

VMM/CPUMDbg: Implement gdtr and idtr setters ([gi]dtr_base and _limit where already writeable separately)

File:

• trunk/src/VBox/VMM/VMMR3/CPUMDbg.cpp (modified) (2 diffs)

trunk/src/VBox/VMM/VMMR3/CPUMDbg.cpp

@@ -208 +208 @@
 static DECLCALLBACK(int) cpumR3RegSet_gdtr(void *pvUser, PCDBGFREGDESC pDesc, PCDBGFREGVAL pValue, PCDBGFREGVAL pfMask)
 {
-    NOREF(pvUser); NOREF(pDesc); NOREF(pValue); NOREF(pfMask);
-    return VERR_NOT_IMPLEMENTED;
+    RT_NOREF(pfMask);
+
+    PVMCPU    pVCpu = (PVMCPU)pvUser;
+    VBOXGDTR *pGdtr = (VBOXGDTR *)((uint8_t *)&pVCpu->cpum + pDesc->offRegister);
+
+    VMCPU_ASSERT_EMT(pVCpu);
+    Assert(pDesc->enmType == DBGFREGVALTYPE_DTR);
+
+    pGdtr->cbGdt = pValue->dtr.u32Limit;
+    pGdtr->pGdt  = pValue->dtr.u64Base;
+    return VINF_SUCCESS;
 }
 
@@ -235 +244 @@
 static DECLCALLBACK(int) cpumR3RegSet_idtr(void *pvUser, PCDBGFREGDESC pDesc, PCDBGFREGVAL pValue, PCDBGFREGVAL pfMask)
 {
-    NOREF(pvUser); NOREF(pDesc); NOREF(pValue); NOREF(pfMask);
-    return VERR_NOT_IMPLEMENTED;
+    RT_NOREF(pfMask);
+
+    PVMCPU    pVCpu = (PVMCPU)pvUser;
+    VBOXIDTR *pIdtr = (VBOXIDTR *)((uint8_t *)&pVCpu->cpum + pDesc->offRegister);
+
+    VMCPU_ASSERT_EMT(pVCpu);
+    Assert(pDesc->enmType == DBGFREGVALTYPE_DTR);
+
+    pIdtr->cbIdt = pValue->dtr.u32Limit;
+    pIdtr->pIdt = pValue->dtr.u64Base;
+    return VINF_SUCCESS;
 }