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xen: move xenforeignmemory compat layer into common place 

Now that we no longer support Xen 4.2 and earlier only the <470 case
needs this so it can live with all the others.

Signed-off-by: Ian Campbell <ian.campbell@citrix.com>
Reviewed-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
Signed-off-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
This commit is contained in:
Ian Campbell 2016-02-10 11:07:04 +00:00 committed by Stefano Stabellini
parent 81daba5880
commit 6aa0205e49
1 changed files with 14 additions and 20 deletions
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34
include/hw/xen/xen_common.h
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@ -53,7 +53,20 @@ typedef xc_gnttab xengnttab_handle;
#define xengnttab_map_grant_refs(h, c, d, r, p) \
xc_gnttab_map_grant_refs(h, c, d, r, p)
/* See below for xenforeignmemory_* APIs */
#define xenforeignmemory_open(l, f) xen_xc
static inline void *xenforeignmemory_map(xc_interface *h, uint32_t dom,
int prot, size_t pages,
const xen_pfn_t arr[/*pages*/],
int err[/*pages*/])
{
if (err)
return xc_map_foreign_bulk(h, dom, prot, arr, err, pages);
else
return xc_map_foreign_pages(h, dom, prot, arr, pages);
}
#define xenforeignmemory_unmap(h, p, s) munmap(p, s * XC_PAGE_SIZE)
#else /* CONFIG_XEN_CTRL_INTERFACE_VERSION >= 471 */
@ -359,23 +372,4 @@ static inline int xen_domain_create(xc_interface *xc, uint32_t ssidref,
#endif
#endif
#if CONFIG_XEN_CTRL_INTERFACE_VERSION < 471
#define xenforeignmemory_open(l, f) xen_xc
static inline void *xenforeignmemory_map(xc_interface *h, uint32_t dom,
int prot, size_t pages,
const xen_pfn_t arr[/*pages*/],
int err[/*pages*/])
{
if (err)
return xc_map_foreign_bulk(h, dom, prot, arr, err, pages);
else
return xc_map_foreign_pages(h, dom, prot, arr, pages);
}
#define xenforeignmemory_unmap(h, p, s) munmap(p, s * XC_PAGE_SIZE)
#endif
#endif /* QEMU_HW_XEN_COMMON_H */