Reserve a new fixmap slot for paravirt backends. Xen uses this for
mapping the hypervisor shared-info page, which doesn't really exist in
the guest address space.
Signed-off-by: Jeremy Fitzhardinge <[email protected]>
Cc: Chris Wright <[email protected]>
Cc: Zachary Amsden <[email protected]>
Cc: Andi Kleen <[email protected]>
Cc: Andrew Morton <[email protected]>
Cc: Rusty Russell <[email protected]>
===================================================================
--- a/include/asm-i386/fixmap.h
+++ b/include/asm-i386/fixmap.h
@@ -86,6 +86,9 @@ enum fixed_addresses {
#ifdef CONFIG_PCI_MMCONFIG
FIX_PCIE_MCFG,
#endif
+#ifdef CONFIG_PARAVIRT
+ FIX_PARAVIRT,
+#endif
__end_of_permanent_fixed_addresses,
/* temporary boot-time mappings, used before ioremap() is functional */
#define NR_FIX_BTMAPS 16
--
-
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