mirror of https://gitee.com/openkylin/linux.git
32 lines
743 B
C
32 lines
743 B
C
|
/* CPU virtualization extensions handling
|
||
|
|
*
|
||
|
|
* This should carry the code for handling CPU virtualization extensions
|
||
|
|
* that needs to live in the kernel core.
|
||
|
|
*
|
||
|
|
* Author: Eduardo Habkost <ehabkost@redhat.com>
|
||
|
|
*
|
||
|
|
* Copyright (C) 2008, Red Hat Inc.
|
||
|
|
*
|
||
|
|
* Contains code from KVM, Copyright (C) 2006 Qumranet, Inc.
|
||
|
|
*
|
||
|
|
* This work is licensed under the terms of the GNU GPL, version 2. See
|
||
|
|
* the COPYING file in the top-level directory.
|
||
|
|
*/
|
||
|
|
#ifndef _ASM_X86_VIRTEX_H
|
||
|
|
#define _ASM_X86_VIRTEX_H
|
||
|
|
|
||
|
|
#include <asm/processor.h>
|
||
|
|
#include <asm/system.h>
|
||
|
|
|
||
|
|
/*
|
||
|
|
* VMX functions:
|
||
|
|
*/
|
||
|
|
|
||
|
|
static inline int cpu_has_vmx(void)
|
||
|
|
{
|
||
|
|
unsigned long ecx = cpuid_ecx(1);
|
||
|
|
return test_bit(5, &ecx); /* CPUID.1:ECX.VMX[bit 5] -> VT */
|
||
|
|
}
|
||
|
|
|
||
|
|
#endif /* _ASM_X86_VIRTEX_H */
|