Commit 15d6aba2 authored by Avi Kivity's avatar Avi Kivity Committed by Ingo Molnar
Browse files

x86: Demacro CONFIG_PARAVIRT cpu accessors 



Recently, we had a build failure on !CONFIG_PARAVIRT due to a
callback ->wbinvd() clashing with a macro wbinvd().

While we worked around the issue, avoid it in the future by
changing the macro (and a few surrounding ones) to an inline
function.

Signed-off-by: default avatarAvi Kivity <avi@redhat.com>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Link: http://lkml.kernel.org/r/1303632711-21662-1-git-send-email-avi@redhat.com


Signed-off-by: default avatarIngo Molnar <mingo@elte.hu>
parent 0f1d9f78

arch/x86/include/asm/system.h

+71 −14
Original line number Diff line number Diff line
@@ -303,24 +303,81 @@ static inline void native_wbinvd(void) 
#ifdef CONFIG_PARAVIRT

#include <asm/paravirt.h>

#else

#define read_cr0()	(native_read_cr0())

#define write_cr0(x)	(native_write_cr0(x))

#define read_cr2()	(native_read_cr2())

#define write_cr2(x)	(native_write_cr2(x))

#define read_cr3()	(native_read_cr3())

#define write_cr3(x)	(native_write_cr3(x))

#define read_cr4()	(native_read_cr4())

#define read_cr4_safe()	(native_read_cr4_safe())

#define write_cr4(x)	(native_write_cr4(x))

#define wbinvd()	(native_wbinvd())



static inline unsigned long read_cr0(void)

{

	return native_read_cr0();

}



static inline void write_cr0(unsigned long x)

{

	native_write_cr0(x);

}



static inline unsigned long read_cr2(void)

{

	return native_read_cr2();

}



static inline void write_cr2(unsigned long x)

{

	native_write_cr2(x);

}



static inline unsigned long read_cr3(void)

{

	return native_read_cr3();

}



static inline void write_cr3(unsigned long x)

{

	native_write_cr3(x);

}



static inline unsigned long read_cr4(void)

{

	return native_read_cr4();

}



static inline unsigned long read_cr4_safe(void)

{

	return native_read_cr4_safe();

}



static inline void write_cr4(unsigned long x)

{

	native_write_cr4(x);

}



static inline void wbinvd(void)

{

	native_wbinvd();

}



#ifdef CONFIG_X86_64

#define read_cr8()	(native_read_cr8())

#define write_cr8(x)	(native_write_cr8(x))

#define load_gs_index   native_load_gs_index



static inline unsigned long read_cr8(void)

{

	return native_read_cr8();

}



static inline void write_cr8(unsigned long x)

{

	native_write_cr8(x);

}



static inline void load_gs_index(unsigned selector)

{

	native_load_gs_index(selector);

}



#endif



/* Clear the 'TS' bit */

#define clts()		(native_clts())

static inline void clts(void)

{

	native_clts();

}



#endif/* CONFIG_PARAVIRT */

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