Changeset 26855 in vbox for trunk/include/VBox

Timestamp:

Feb 26, 2010 2:30:43 PM (15 years ago)

Author:

vboxsync

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

58133

Message:

Introduced EMInterpretInstructionCPUEx to allow user-level instruction emulation.

File:

• trunk/include/VBox/em.h (modified) (3 diffs)

trunk/include/VBox/em.h

@@ -82 +82 @@
 } EMSTATE;
 
+
+/**
+ * EMInterpretInstructionCPUEx execution modes.
+ */
+typedef enum
+{
+    /** Only supervisor code (CPL=0). */
+    EMCODETYPE_SUPERVISOR,
+    /** User-level code only. */
+    EMCODETYPE_USER,
+    /** Supervisor and user-level code (use with great care!). */
+    EMCODETYPE_ALL,
+    /** Just a hack to ensure that we get a 32-bit integer. */
+    EMCODETYPE_32BIT_HACK = 0x7fffffff
+} EMCODETYPE;
+
 VMMDECL(EMSTATE) EMGetState(PVMCPU pVCpu);
 VMMDECL(void)    EMSetState(PVMCPU pVCpu, EMSTATE enmNewState);
@@ -126 +142 @@
                                           PDISCPUSTATE pDISState, unsigned *pcbInstr);
 VMMDECL(int)        EMInterpretInstruction(PVM pVM, PVMCPU pVCpu, PCPUMCTXCORE pRegFrame, RTGCPTR pvFault, uint32_t *pcbSize);
-VMMDECL(int)        EMInterpretInstructionCPU(PVM pVM, PVMCPU pVCpu, PDISCPUSTATE pDISState, PCPUMCTXCORE pRegFrame, RTGCPTR pvFault, uint32_t *pcbSize);
+VMMDECL(int)        EMInterpretInstructionCPUEx(PVM pVM, PVMCPU pVCpu, PDISCPUSTATE pDISState, PCPUMCTXCORE pRegFrame, RTGCPTR pvFault, uint32_t *pcbSize, EMCODETYPE enmCodeType);
 VMMDECL(int)        EMInterpretCpuId(PVM pVM, PVMCPU pVCpu, PCPUMCTXCORE pRegFrame);
 VMMDECL(int)        EMInterpretRdtsc(PVM pVM, PVMCPU pVCpu, PCPUMCTXCORE pRegFrame);
@@ -143 +159 @@
 VMMDECL(int)        EMInterpretRdmsr(PVM pVM, PVMCPU pVCpu, PCPUMCTXCORE pRegFrame);
 VMMDECL(int)        EMInterpretWrmsr(PVM pVM, PVMCPU pVCpu, PCPUMCTXCORE pRegFrame);
+
+/* Wrap EMInterpretInstructionCPUEx for supervisor code only interpretation.
+ */
+inline int EMInterpretInstructionCPU(PVM pVM, PVMCPU pVCpu, PDISCPUSTATE pDISState, PCPUMCTXCORE pRegFrame, RTGCPTR pvFault, uint32_t *pcbSize)
+{
+    return EMInterpretInstructionCPUEx(pVM, pVCpu, pDISState, pRegFrame, pvFault, pcbSize, EMCODETYPE_SUPERVISOR);
+}
 
 /** @name Assembly routines