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[Xen-devel] [PATCH] linux/i386: dma_addr_t must always be 64 bits wide

from [Jan Beulich]

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Subject:	[Xen-devel] [PATCH] linux/i386: dma_addr_t must always be 64 bits wide
From:	"Jan Beulich" <JBeulich@xxxxxxxxxx>
Date:	Wed, 03 Feb 2010 16:30:12 +0000
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Irrespective of CONFIG_HIGHMEM settings, DMA addresses must always be
64-bit wide.

Signed-off-by: Jan Beulich <jbeulich@xxxxxxxxxx>

--- a/include/asm-i386/types.h
+++ b/include/asm-i386/types.h
@@ -50,7 +50,7 @@
 
 /* DMA addresses come in generic and 64-bit flavours.  */
 
-#ifdef CONFIG_HIGHMEM64G
+#if defined(CONFIG_XEN) || defined(CONFIG_HIGHMEM64G)
 typedef u64 dma_addr_t;
 #else
 typedef u32 dma_addr_t;

xenlinux-i386-dma_addr_t-64bit.patch
Description: Text document

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