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https://github.com/clearlinux/kvmtool.git
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Dimitri John Ledkov
41 lines
825 B
C
41 lines
825 B
C
#ifndef _ASM_X86_PROCESSOR_FLAGS_H
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#define _ASM_X86_PROCESSOR_FLAGS_H
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/* Various flags defined: can be included from assembler. */
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#ifndef _BITUL
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#ifdef __ASSEMBLY__
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#define _AC(X,Y) X
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#define _AT(T,X) X
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#else
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#define __AC(X,Y) (X##Y)
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#define _AC(X,Y) __AC(X,Y)
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#define _AT(T,X) ((T)(X))
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#endif
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#define _BITUL(x) (_AC(1,UL) << (x))
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#define _BITULL(x) (_AC(1,ULL) << (x))
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#endif
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/*
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* EFLAGS bits
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*/
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#define X86_EFLAGS_CF 0x00000001 /* Carry Flag */
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/*
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* Basic CPU control in CR0
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*/
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#define X86_CR0_PE_BIT 0 /* Protection Enable */
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#define X86_CR0_PE _BITUL(X86_CR0_PE_BIT)
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#define X86_CR0_PG_BIT 31 /* Paging */
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#define X86_CR0_PG _BITUL(X86_CR0_PG_BIT)
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/*
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* Intel CPU features in CR4
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*/
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#define X86_CR4_PAE_BIT 5 /* enable physical address extensions */
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#define X86_CR4_PAE _BITUL(X86_CR4_PAE_BIT)
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#endif
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