generic.h File Reference

#include <zephyr/xen/public/xen.h>

Go to the source code of this file.

Macros
#define	XEN_PAGE_SIZE   4096
#define	XEN_PAGE_SHIFT   12
#define	XEN_PFN_UP(x)   (unsigned long)(((x) + XEN_PAGE_SIZE-1) >> XEN_PAGE_SHIFT)
#define	XEN_PFN_DOWN(x)   (unsigned long)((x) >> XEN_PAGE_SHIFT)
#define	XEN_PFN_PHYS(x)   ((unsigned long)(x) << XEN_PAGE_SHIFT)
#define	XEN_PHYS_PFN(x)   (unsigned long)((x) >> XEN_PAGE_SHIFT)
#define	xen_to_phys(x)   ((unsigned long) (x))
#define	xen_to_virt(x)   ((void *) (x))
#define	xen_virt_to_gfn(_virt)   (XEN_PFN_DOWN(xen_to_phys(_virt)))
#define	xen_gfn_to_virt(_gfn)   (xen_to_virt(XEN_PFN_PHYS(_gfn)))
#define	synch_cmpxchg(ptr, old, new)

Macro Definition Documentation

synch_cmpxchg

#define synch_cmpxchg	(		ptr,
			old,
			new
	)

Value:

({ __typeof__(*ptr) stored = old; \
 __atomic_compare_exchange_n(ptr, &stored, new, 0, __ATOMIC_SEQ_CST, \
 __ATOMIC_SEQ_CST) ? new : old; \
})

xen_gfn_to_virt

#define xen_gfn_to_virt

(

_gfn

)

(xen_to_virt(XEN_PFN_PHYS(_gfn)))

XEN_PAGE_SHIFT

#define XEN_PAGE_SHIFT   12

XEN_PAGE_SIZE

#define XEN_PAGE_SIZE   4096

XEN_PFN_DOWN

#define XEN_PFN_DOWN

(

x

)

(unsigned long)((x) >> XEN_PAGE_SHIFT)

XEN_PFN_PHYS

#define XEN_PFN_PHYS

(

x

)

((unsigned long)(x) << XEN_PAGE_SHIFT)

XEN_PFN_UP

#define XEN_PFN_UP

(

x

)

(unsigned long)(((x) + XEN_PAGE_SIZE-1) >> XEN_PAGE_SHIFT)

XEN_PHYS_PFN

#define XEN_PHYS_PFN

(

x

)

(unsigned long)((x) >> XEN_PAGE_SHIFT)

xen_to_phys

#define xen_to_phys

(

x

)

((unsigned long) (x))

xen_to_virt

#define xen_to_virt

(

x

)

((void *) (x))

xen_virt_to_gfn

#define xen_virt_to_gfn

(

_virt

)

(XEN_PFN_DOWN(xen_to_phys(_virt)))