Changeset 101060 in vbox

Timestamp:

Sep 8, 2023 7:59:48 AM (15 months ago)

Author:

vboxsync

Message:

VMM: Nested VMX: bugref:10318 VMX PAT MSR checking nit.

File:

• trunk/src/VBox/VMM/VMMAll/VMXAllTemplate.cpp.h (modified) (1 diff)

trunk/src/VBox/VMM/VMMAll/VMXAllTemplate.cpp.h

@@ -5470 +5470 @@
             {
                 uint8_t u8Val = (u64Val & 0xff);
-                if (   u8Val != 0 /* UC */
-                    && u8Val != 1 /* WC */
-                    && u8Val != 4 /* WT */
-                    && u8Val != 5 /* WP */
-                    && u8Val != 6 /* WB */
-                    && u8Val != 7 /* UC- */)
+                if (   u8Val > MSR_IA32_PAT_MT_UCD
+                    || u8Val == MSR_IA32_PAT_MT_RSVD_2
+                    || u8Val == MSR_IA32_PAT_MT_RSVD_3)
                     HMVMX_ERROR_BREAK(VMX_IGS_PAT_MSR_INVALID);
                 u64Val >>= 8;