[patch 06/26] Xen-paravirt_ops: paravirt_ops: allocate a fixmap slot

From: Jeremy Fitzhardinge
Date: Tue Feb 27 2007 - 03:43:54 EST


Allocate a fixmap slot for use by a paravirt_ops implementation. Xen
uses this to map the hypervisor's shared info page, which doesn't have
a pseudo-physical page number, and therefore can't be mapped
ordinarily.

Signed-off-by: Jeremy Fitzhardinge <jeremy@xxxxxxxxxxxxx>

---
include/asm-i386/fixmap.h | 3 +++
1 file changed, 3 insertions(+)

===================================================================
--- 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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