Those helpers will be useful to do common operations without having to
unbox/box manually the GFNs/MFNs.
Signed-off-by: Julien Grall <julien.gr...@arm.com>
---
Cc: Stefano Stabellini <sstabell...@kernel.org>
Cc: Jan Beulich <jbeul...@suse.com>
Cc: Andrew Cooper <andrew.coop...@citrix.com>
Cc: George Dunlap <george.dun...@eu.citrix.com>
Cc: Ian Jackson <ian.jack...@eu.citrix.com>
Cc: Konrad Rzeszutek Wilk <konrad.w...@oracle.com>
Cc: Tim Deegan <t...@xen.org>
Cc: Wei Liu <wei.l...@citrix.com>
Changes in v2:
- Rename min_gfn/max_gfn to gfn_min/gfn_max
- Add more helpers for gfn and mfn
---
xen/include/xen/mm.h | 10 ++++++++++
1 file changed, 10 insertions(+)
diff --git a/xen/include/xen/mm.h b/xen/include/xen/mm.h
index 3cf646a..58b5c75 100644
--- a/xen/include/xen/mm.h
+++ b/xen/include/xen/mm.h
@@ -61,6 +61,11 @@ TYPE_SAFE(unsigned long, mfn);
#undef mfn_t
#endif
+#define mfn_add(mfn, i) _mfn(mfn_x(mfn) + (i))
+#define mfn_max(x, y) _mfn(max(mfn_x(x), mfn_x(y)))
+#define mfn_min(x, y) _mfn(min(mfn_x(x), mfn_x(y)))
+#define mfn_eq(x, y) (mfn_x(x) == mfn_x(y))
+
TYPE_SAFE(unsigned long, gfn);
#define PRI_gfn "05lx"
#define INVALID_GFN (~0UL)
@@ -70,6 +75,11 @@ TYPE_SAFE(unsigned long, gfn);
#undef gfn_t
#endif
+#define gfn_add(gfn, i) _gfn(gfn_x(gfn) + (i))
+#define gfn_max(x, y) _gfn(max(gfn_x(x), gfn_x(y)))
+#define gfn_min(x, y) _gfn(min(gfn_x(x), gfn_x(y)))
+#define gfn_eq(x, y) (gfn_x(x) == gfn_x(y))
+
TYPE_SAFE(unsigned long, pfn);
#define PRI_pfn "05lx"
#define INVALID_PFN (~0UL)
--
1.9.1
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