B-10 Vol. 3D

FIELD ENCODING IN VMCS

B.4.4  

Natural-Width Host-State Fields

A value of 3 in bits 11:10 of an encoding indicates a field in the host-state area. These fields are distinguished by 
their index value in bits 9:1. Table B-15 enumerates the natural-width host-state fields.

Table B-15.  Encodings for Natural-Width Host-State Fields (0110_11xx_xxxx_xxx0B) 

Field Name

Index

Encoding

Host CR0

000000000B

00006C00H

Host CR3

000000001B

00006C02H

Host CR4

000000010B

00006C04H

Host FS base

000000011B

00006C06H

Host GS base

000000100B

00006C08H

Host TR base

000000101B

00006C0AH

Host GDTR base

000000110B

00006C0CH

Host IDTR base

000000111B

00006C0EH

Host IA32_SYSENTER_ESP

000001000B

00006C10H

Host IA32_SYSENTER_EIP

000001001B

00006C12H

Host RSP

000001010B

00006C14H

Host RIP

000001011B

00006C16H