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$NetBSD: patch-db,v 1.1 2009/01/24 18:57:59 bouyer Exp $
some device have I/O space but no mem space so checking iomem to grant
privileges is not enough.
--- xen/include/asm-x86/iocap.h.orig 2009-01-24 17:22:41.000000000 +0100
+++ xen/include/asm-x86/iocap.h 2009-01-24 17:23:24.000000000 +0100
@@ -15,6 +15,6 @@
rangeset_contains_range((d)->arch.ioport_caps, s, e)
#define cache_flush_permitted(d) \
- (!rangeset_is_empty((d)->iomem_caps))
+ (!rangeset_is_empty((d)->iomem_caps) || !rangeset_is_empty((d)->arch.ioport_caps))
#endif /* __X86_IOCAP_H__ */
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