diff --git a/VMCS-GUEST.md b/VMCS-GUEST.md
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@@ -0,0 +1,26 @@
+# Intel Processor Info
+
+```
+Processors: (two xeon cpus)
+    Processor	Intel(R) Xeon(R) CPU           X5650  @ 2.67GHz, 2668 Mhz, 6 Core(s), 12 Logical Processor(s)
+    Processor	Intel(R) Xeon(R) CPU           X5650  @ 2.67GHz, 2668 Mhz, 6 Core(s), 12 Logical Processor(s)
+```
+
+# VMCS - Guest Fields
+
+#### Control Registers
+
+* The CR0 field must not set any bit to a value not supported in VMX operation (see Section 23.8). The following
+are exceptions:
+
+    - Bit 0 (corresponding to CR0.PE) and bit 31 (PG) are not checked if the “unrestricted guest” VM-execution
+control is 1.
+
+    - Bit 29 (corresponding to CR0.NW) and bit 30 (CD) are never checked because the values of these bits are
+not changed by VM entry; see Section 26.3.2.1.
+
+```
+guest cr0: 0x0000000080050033
+guest cr3: 0x00000000001AD000
+guest cr4: 0x00000000000026F8
+```
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