Changeset 93198 in vbox for trunk

Timestamp:

Jan 12, 2022 12:31:58 PM (3 years ago)

Author:

vboxsync

Message:

VMM/IEM: Nested VMX: bugref:10092 Add INVEPT interface.

Location:

trunk

Files:

• include/VBox/vmm/iem.h (modified) (1 diff)
• src/VBox/VMM/VMMAll/IEMAll.cpp (modified) (1 diff)

trunk/include/VBox/vmm/iem.h

@@ -381 +381 @@
 VMM_INT_DECL(VBOXSTRICTRC)  IEMExecDecodedVmxoff(PVMCPUCC pVCpu, uint8_t cbInstr);
 VMM_INT_DECL(VBOXSTRICTRC)  IEMExecDecodedInvvpid(PVMCPUCC pVCpu, PCVMXVEXITINFO pExitInfo);
+# ifdef VBOX_WITH_NESTED_HWVIRT_VMX_EPT
+VMM_INT_DECL(VBOXSTRICTRC)  IEMExecDecodedInvept(PVMCPUCC pVCpu, PCVMXVEXITINFO pExitInfo);
+# endif
 #endif
 /** @}  */

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

@@ -16334 +16334 @@
 
 
+# ifdef VBOX_WITH_NESTED_HWVIRT_VMX_EPT
+/**
+ * Interface for HM and EM to emulate the INVEPT instruction.
+ *
+ * @returns Strict VBox status code.
+ * @param   pVCpu           The cross context virtual CPU structure of the calling EMT.
+ * @param   pExitInfo       Pointer to the VM-exit information.
+ * @thread  EMT(pVCpu)
+ */
+VMM_INT_DECL(VBOXSTRICTRC) IEMExecDecodedInvept(PVMCPUCC pVCpu, PCVMXVEXITINFO pExitInfo)
+{
+    IEMEXEC_ASSERT_INSTR_LEN_RETURN(pExitInfo->cbInstr, 4);
+    IEM_CTX_ASSERT(pVCpu, IEM_CPUMCTX_EXTRN_EXEC_DECODED_MEM_MASK | CPUMCTX_EXTRN_INHIBIT_INT | CPUMCTX_EXTRN_INHIBIT_NMI);
+    Assert(pExitInfo);
+
+    iemInitExec(pVCpu, false /*fBypassHandlers*/);
+
+    uint8_t const  iEffSeg          = pExitInfo->InstrInfo.Inv.iSegReg;
+    uint8_t const  cbInstr          = pExitInfo->cbInstr;
+    RTGCPTR const  GCPtrInveptDesc  = pExitInfo->GCPtrEffAddr;
+    uint64_t const u64InveptType    = pVCpu->iem.s.enmCpuMode == IEMMODE_64BIT
+                                    ? iemGRegFetchU64(pVCpu, pExitInfo->InstrInfo.Inv.iReg2)
+                                    : iemGRegFetchU32(pVCpu, pExitInfo->InstrInfo.Inv.iReg2);
+    VBOXSTRICTRC rcStrict = iemVmxInvept(pVCpu, cbInstr, iEffSeg, GCPtrInveptDesc, u64InveptType, pExitInfo);
+    Assert(!pVCpu->iem.s.cActiveMappings);
+    return iemUninitExecAndFiddleStatusAndMaybeReenter(pVCpu, rcStrict);
+}
+# endif /* VBOX_WITH_NESTED_HWVIRT_VMX_EPT */
+
+
 /**
  * @callback_method_impl{FNPGMPHYSHANDLER, VMX APIC-access page accesses}