| Eduardo Habkost | 6210e37 | 2008-11-17 19:03:16 -0200 | [diff] [blame^] | 1 | /* CPU virtualization extensions handling |
| 2 | * |
| 3 | * This should carry the code for handling CPU virtualization extensions |
| 4 | * that needs to live in the kernel core. |
| 5 | * |
| 6 | * Author: Eduardo Habkost <ehabkost@redhat.com> |
| 7 | * |
| 8 | * Copyright (C) 2008, Red Hat Inc. |
| 9 | * |
| 10 | * Contains code from KVM, Copyright (C) 2006 Qumranet, Inc. |
| 11 | * |
| 12 | * This work is licensed under the terms of the GNU GPL, version 2. See |
| 13 | * the COPYING file in the top-level directory. |
| 14 | */ |
| 15 | #ifndef _ASM_X86_VIRTEX_H |
| 16 | #define _ASM_X86_VIRTEX_H |
| 17 | |
| 18 | #include <asm/processor.h> |
| 19 | #include <asm/system.h> |
| 20 | |
| 21 | /* |
| 22 | * VMX functions: |
| 23 | */ |
| 24 | |
| 25 | static inline int cpu_has_vmx(void) |
| 26 | { |
| 27 | unsigned long ecx = cpuid_ecx(1); |
| 28 | return test_bit(5, &ecx); /* CPUID.1:ECX.VMX[bit 5] -> VT */ |
| 29 | } |
| 30 | |
| 31 | #endif /* _ASM_X86_VIRTEX_H */ |