Changeset 91975 in vbox

Timestamp:

Oct 21, 2021 5:07:40 PM (3 years ago)

Author:

vboxsync

Message:

VMM: Nested VMX: bugref:10092 Added CPUMGetGuestVmxEptPtr. This can be optimized later by making PGM have its own copy of it.

Location:

trunk

Files:

• include/VBox/vmm/cpum.h (modified) (2 diffs)
• src/VBox/VMM/VMMAll/CPUMAllRegs.cpp (modified) (1 diff)

trunk/include/VBox/vmm/cpum.h

@@ -1597 +1597 @@
 VMM_INT_DECL(uint32_t)  CPUMGetVmxMsrPermission(void const *pvMsrBitmap, uint32_t idMsr);
 VMM_INT_DECL(bool)      CPUMIsGuestVmxEptPagingEnabled(PCVMCPUCC pVCpu);
+VMM_INT_DECL(uint64_t)  CPUMGetGuestVmxEptPtr(PCVMCPUCC pVCpu);
 /** @} */
 
@@ -2560 +2561 @@
     return RT_BOOL(pCtx->eflags.u & X86_EFL_IF);
 #endif
+}
+
+/**
+ * Returns the EPT pointer of the nested-guest.
+ *
+ * @returns The EPT pointer.
+ * @param   pCtx    Current CPU context.
+ */
+DECLINLINE(uint64_t) CPUMGetGuestVmxEptPtrEx(PCCPUMCTX pCtx)
+{
+    Assert(CPUMIsGuestInVmxNonRootMode(pCtx));
+    return pCtx->hwvirt.vmx.Vmcs.u64EptPtr.u;
 }
 

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

@@ -3045 +3045 @@
 }
 
+
+/**
+ * Returns the EPT pointer of the nested-guest.
+ *
+ * @returns The EPT pointer.
+ * @param   pVCpu   The cross context virtual CPU structure.
+ */
+VMM_INT_DECL(uint64_t) CPUMGetGuestVmxEptPtr(PCVMCPUCC pVCpu)
+{
+    return CPUMGetGuestVmxEptPtrEx(&pVCpu->cpum.s.Guest);
+}
+