[PATCH 08/24] xen: reserve i386 Xen pagetables

Jeremy Fitzhardinge
2009-03-13T08:15:37Z

From: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>

Make sure the Xen-provided pagetables are reserved on x86-32.

Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>
---
arch/x86/xen/mmu.c | 5 +++++
1 files changed, 5 insertions(+), 0 deletions(-)

diff --git a/arch/x86/xen/mmu.c b/arch/x86/xen/mmu.c
index 2d30b74..065fe8d 100644
--- a/arch/x86/xen/mmu.c
+++ b/arch/x86/xen/mmu.c
@@ -1789,6 +1789,11 @@ __init pgd_t *xen_setup_kernel_pagetable(pgd_t *pgd,

pin_pagetable_pfn(MMUEXT_PIN_L3_TABLE, PFN_DOWN(__pa(swapper_pg_dir)));

+ reserve_early(__pa(xen_start_info->pt_base),
+ __pa(xen_start_info->pt_base +
+ xen_start_info->nr_pt_frames * PAGE_SIZE),
+ "XEN PAGETABLES");
+
return swapper_pg_dir;
}
#endif /* CONFIG_X86_64 */
--
1.6.0.6