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authorStefano Stabellini <stefano.stabellini@eu.citrix.com>2012-08-22 17:20:14 +0100
committerKonrad Rzeszutek Wilk <konrad.wilk@oracle.com>2012-08-23 10:18:17 -0400
commitbd3f79b71de0410352ab506496a467fcb0620912 (patch)
tree329d52717cb1b04702af154db05eb766c04473cc /arch/ia64/include
parenta8636c0b2e57d4f31f71aa306b1ee701db3f3c85 (diff)
xen: Introduce xen_pfn_t for pfn and mfn types
All the original Xen headers have xen_pfn_t as mfn and pfn type, however when they have been imported in Linux, xen_pfn_t has been replaced with unsigned long. That might work for x86 and ia64 but it does not for arm. Bring back xen_pfn_t and let each architecture define xen_pfn_t as they see fit. Signed-off-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com> Acked-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com> Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Diffstat (limited to 'arch/ia64/include')
-rw-r--r--arch/ia64/include/asm/xen/interface.h5
1 files changed, 4 insertions, 1 deletions
diff --git a/arch/ia64/include/asm/xen/interface.h b/arch/ia64/include/asm/xen/interface.h
index ee9cad6e749..3d52a5bbd85 100644
--- a/arch/ia64/include/asm/xen/interface.h
+++ b/arch/ia64/include/asm/xen/interface.h
@@ -67,6 +67,10 @@
#define set_xen_guest_handle(hnd, val) do { (hnd).p = val; } while (0)
#ifndef __ASSEMBLY__
+/* Explicitly size integers that represent pfns in the public interface
+ * with Xen so that we could have one ABI that works for 32 and 64 bit
+ * guests. */
+typedef unsigned long xen_pfn_t;
/* Guest handles for primitive C types. */
__DEFINE_GUEST_HANDLE(uchar, unsigned char);
__DEFINE_GUEST_HANDLE(uint, unsigned int);
@@ -79,7 +83,6 @@ DEFINE_GUEST_HANDLE(void);
DEFINE_GUEST_HANDLE(uint64_t);
DEFINE_GUEST_HANDLE(uint32_t);
-typedef unsigned long xen_pfn_t;
DEFINE_GUEST_HANDLE(xen_pfn_t);
#define PRI_xen_pfn "lx"
#endif