Jan Beulich
2007-Feb-26 14:02 UTC
[Xen-devel] [PATCH] linux: Fix backward compatibility in page table handling
A 3.0.2 compatibility requirement slipped my attention before
submitting the original page table handling changes.
Signed-off-by: Jan Beulich <jbeulich@novell.com>
Index: sle10sp1-2007-02-20/include/asm-i386/mach-xen/asm/page.h
==================================================================---
sle10sp1-2007-02-20.orig/include/asm-i386/mach-xen/asm/page.h 2007-02-26
10:23:57.000000000 +0100
+++ sle10sp1-2007-02-20/include/asm-i386/mach-xen/asm/page.h 2007-02-26
10:26:14.000000000 +0100
@@ -139,7 +139,11 @@
static inline unsigned long pgd_val(pgd_t x)
{
unsigned long ret = x.pgd;
+#ifdef CONFIG_XEN_COMPAT_030002
+ if (ret) ret = machine_to_phys(ret) | _PAGE_PRESENT;
+#else
if (ret & _PAGE_PRESENT) ret = machine_to_phys(ret);
+#endif
return ret;
}
#define HPAGE_SHIFT 22
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