Changeset 74014 in vbox for trunk/src

Timestamp:

Sep 1, 2018 2:12:29 AM (6 years ago)

Author:

vboxsync

Message:

VMM/HMVMXR0: Nested VMX: bugref:9180 Make use of IEM decoded APIs for vmclear, vmptrld, vmptrst.

File:

• trunk/src/VBox/VMM/VMMR0/HMVMXR0.cpp (modified) (5 diffs)

trunk/src/VBox/VMM/VMMR0/HMVMXR0.cpp

@@ -13175 +13175 @@
 }
 
+
 /**
  * VM-exit exception handler for \#GP (General-protection exception).
@@ -13378 +13379 @@
 
 #ifdef VBOX_WITH_NESTED_HWVIRT_VMX
-
 /** @name Nested-guest VM-exit handlers.
  * @{
@@ -13393 +13393 @@
     HMVMX_VALIDATE_EXIT_HANDLER_PARAMS(pVCpu, pVmxTransient);
 
-    /** @todo NSTVMX: Vmclear. */
-    hmR0VmxSetPendingXcptUD(pVCpu);
-    return VINF_SUCCESS;
+    int rc = hmR0VmxReadExitInstrLenVmcs(pVmxTransient);
+    rc    |= hmR0VmxImportGuestState(pVCpu, CPUMCTX_EXTRN_RSP | CPUMCTX_EXTRN_SREG_MASK
+                                          | IEM_CPUMCTX_EXTRN_EXEC_DECODED_MEM_MASK);
+    rc    |= hmR0VmxReadExitInstrInfoVmcs(pVmxTransient);
+    rc    |= hmR0VmxReadExitQualVmcs(pVCpu, pVmxTransient);
+    AssertRCReturn(rc, rc);
+
+    HMVMX_CHECK_EXIT_DUE_TO_VMX_INSTR(pVCpu, pVmxTransient->uExitReason);
+
+    VMXVEXITINFO ExitInfo;
+    RT_ZERO(ExitInfo);
+    ExitInfo.uReason     = pVmxTransient->uExitReason;
+    ExitInfo.u64Qual     = pVmxTransient->uExitQual;
+    ExitInfo.InstrInfo.u = pVmxTransient->ExitInstrInfo.u;
+    ExitInfo.cbInstr     = pVmxTransient->cbInstr;
+    HMVMX_DECODE_MEM_OPERAND(pVCpu, ExitInfo.InstrInfo.u, ExitInfo.u64Qual, VMXMEMACCESS_READ, &ExitInfo.GCPtrEffAddr);
+
+    VBOXSTRICTRC rcStrict = IEMExecDecodedVmclear(pVCpu, &ExitInfo);
+    if (RT_LIKELY(rcStrict == VINF_SUCCESS))
+        ASMAtomicUoOrU64(&pVCpu->hm.s.fCtxChanged, HM_CHANGED_GUEST_RIP | HM_CHANGED_GUEST_RFLAGS | HM_CHANGED_GUEST_HWVIRT);
+    else if (rcStrict == VINF_IEM_RAISED_XCPT)
+    {
+        ASMAtomicUoOrU64(&pVCpu->hm.s.fCtxChanged, HM_CHANGED_RAISED_XCPT_MASK);
+        rcStrict = VINF_SUCCESS;
+    }
+    return rcStrict;
 }
 
@@ -13419 +13442 @@
     HMVMX_VALIDATE_EXIT_HANDLER_PARAMS(pVCpu, pVmxTransient);
 
-    /** @todo NSTVMX: Vmptrld. */
-    hmR0VmxSetPendingXcptUD(pVCpu);
-    return VINF_SUCCESS;
+    int rc = hmR0VmxReadExitInstrLenVmcs(pVmxTransient);
+    rc    |= hmR0VmxImportGuestState(pVCpu, CPUMCTX_EXTRN_RSP | CPUMCTX_EXTRN_SREG_MASK
+                                          | IEM_CPUMCTX_EXTRN_EXEC_DECODED_MEM_MASK);
+    rc    |= hmR0VmxReadExitInstrInfoVmcs(pVmxTransient);
+    rc    |= hmR0VmxReadExitQualVmcs(pVCpu, pVmxTransient);
+    AssertRCReturn(rc, rc);
+
+    HMVMX_CHECK_EXIT_DUE_TO_VMX_INSTR(pVCpu, pVmxTransient->uExitReason);
+
+    VMXVEXITINFO ExitInfo;
+    RT_ZERO(ExitInfo);
+    ExitInfo.uReason     = pVmxTransient->uExitReason;
+    ExitInfo.u64Qual     = pVmxTransient->uExitQual;
+    ExitInfo.InstrInfo.u = pVmxTransient->ExitInstrInfo.u;
+    ExitInfo.cbInstr     = pVmxTransient->cbInstr;
+    HMVMX_DECODE_MEM_OPERAND(pVCpu, ExitInfo.InstrInfo.u, ExitInfo.u64Qual, VMXMEMACCESS_READ, &ExitInfo.GCPtrEffAddr);
+
+    VBOXSTRICTRC rcStrict = IEMExecDecodedVmptrld(pVCpu, &ExitInfo);
+    if (RT_LIKELY(rcStrict == VINF_SUCCESS))
+        ASMAtomicUoOrU64(&pVCpu->hm.s.fCtxChanged, HM_CHANGED_GUEST_RIP | HM_CHANGED_GUEST_RFLAGS | HM_CHANGED_GUEST_HWVIRT);
+    else if (rcStrict == VINF_IEM_RAISED_XCPT)
+    {
+        ASMAtomicUoOrU64(&pVCpu->hm.s.fCtxChanged, HM_CHANGED_RAISED_XCPT_MASK);
+        rcStrict = VINF_SUCCESS;
+    }
+    return rcStrict;
 }
 
@@ -13432 +13478 @@
     HMVMX_VALIDATE_EXIT_HANDLER_PARAMS(pVCpu, pVmxTransient);
 
-    /** @todo NSTVMX: Vmptrst. */
-    hmR0VmxSetPendingXcptUD(pVCpu);
-    return VINF_SUCCESS;
+    int rc = hmR0VmxReadExitInstrLenVmcs(pVmxTransient);
+    rc    |= hmR0VmxImportGuestState(pVCpu, CPUMCTX_EXTRN_RSP | CPUMCTX_EXTRN_SREG_MASK
+                                          | IEM_CPUMCTX_EXTRN_EXEC_DECODED_MEM_MASK);
+    rc    |= hmR0VmxReadExitInstrInfoVmcs(pVmxTransient);
+    rc    |= hmR0VmxReadExitQualVmcs(pVCpu, pVmxTransient);
+    AssertRCReturn(rc, rc);
+
+    HMVMX_CHECK_EXIT_DUE_TO_VMX_INSTR(pVCpu, pVmxTransient->uExitReason);
+
+    VMXVEXITINFO ExitInfo;
+    RT_ZERO(ExitInfo);
+    ExitInfo.uReason     = pVmxTransient->uExitReason;
+    ExitInfo.u64Qual     = pVmxTransient->uExitQual;
+    ExitInfo.InstrInfo.u = pVmxTransient->ExitInstrInfo.u;
+    ExitInfo.cbInstr     = pVmxTransient->cbInstr;
+    HMVMX_DECODE_MEM_OPERAND(pVCpu, ExitInfo.InstrInfo.u, ExitInfo.u64Qual, VMXMEMACCESS_WRITE, &ExitInfo.GCPtrEffAddr);
+
+    VBOXSTRICTRC rcStrict = IEMExecDecodedVmptrst(pVCpu, &ExitInfo);
+    if (RT_LIKELY(rcStrict == VINF_SUCCESS))
+        ASMAtomicUoOrU64(&pVCpu->hm.s.fCtxChanged, HM_CHANGED_GUEST_RIP | HM_CHANGED_GUEST_RFLAGS | HM_CHANGED_GUEST_HWVIRT);
+    else if (rcStrict == VINF_IEM_RAISED_XCPT)
+    {
+        ASMAtomicUoOrU64(&pVCpu->hm.s.fCtxChanged, HM_CHANGED_RAISED_XCPT_MASK);
+        rcStrict = VINF_SUCCESS;
+    }
+    return rcStrict;
 }