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

Jeremy Fitzhardinge
2007-02-27T08:43:11Z

[-- Attachment #1: paravirt-fixmap.patch --]
[-- Type: text/plain, Size: 768 bytes --]

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@xensource.com>

---
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

--