Changeset 76548 in vbox for trunk/include/VBox/vmm

Timestamp:

Dec 31, 2018 4:05:16 AM (6 years ago)

Author:

vboxsync

Message:

VMM/CPUM: Add functions for getting guest CR0, CR4 valid bits mask, in preparation for upcoming changes to nested VMX code.

File:

• trunk/include/VBox/vmm/cpum.h (modified) (2 diffs)

trunk/include/VBox/vmm/cpum.h

@@ -1414 +1414 @@
 VMM_INT_DECL(void)     CPUMSetGuestSpecCtrl(PVMCPU pVCpu, uint64_t uValue);
 VMM_INT_DECL(uint64_t) CPUMGetGuestSpecCtrl(PVMCPU pVCpu);
+VMM_INT_DECL(uint64_t) CPUMGetGuestCR4ValidMask(PVM pVM);
 /** @} */
 
@@ -1514 +1515 @@
 
 #ifndef IPRT_WITHOUT_NAMED_UNIONS_AND_STRUCTS
+
+/**
+ * Gets valid CR0 bits for the guest.
+ *
+ * @returns Valid CR0 bits.
+ */
+DECLINLINE(uint64_t) CPUMGetGuestCR0ValidMask(void)
+{
+    return (  X86_CR0_PE | X86_CR0_MP | X86_CR0_EM | X86_CR0_TS
+            | X86_CR0_ET | X86_CR0_NE | X86_CR0_WP | X86_CR0_AM
+            | X86_CR0_NW | X86_CR0_CD | X86_CR0_PG);
+}
 
 /**