CVS commit: src/sys/arch/x86/include

["Jean-Yves Migeon" <jym%netbsd.org@localhost>]

Module Name:    src
Committed By:   jym
Date:           Sat May  5 15:08:29 UTC 2012

Modified Files:
        src/sys/arch/x86/include: specialreg.h

Log Message:
Add latest CR4 bits:
- CR4_VMXE: VMX operations, used for hardware virtualization.
- CR4_SMXE: SMX operations, used for safer Mode Extensions (ground for
            Intel's TXT - Trusted Execution Technology - platform).
- CR4_FSGSBASE: enable *FSBASE and *GSBASE instructions, for R/W access
                to FS/GS segment base addresses.
- CR4_PCIDE: enable Process Context IDentifiers (other architectures may call
             these "address space identifiers").
- CR4_OSXSAVE: enable xsave and xrestore instructions
- CR4_SMEP: Supervisor Mode Execution Prevention. Allows enforcing --x rights
            from cpl 0.

>From Intel® 64 and IA-32 Architectures Software Developer’s Manual,
March 2012.

Align declarations.

CPUID_* bits for these features follow.


To generate a diff of this commit:
cvs rdiff -u -r1.58 -r1.59 src/sys/arch/x86/include/specialreg.h

Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.