Gitweb: http://git.kernel.org/linus/973df35ed9ff7806403e793a2ad7e9bd4c2fd2a9
Commit: 973df35ed9ff7806403e793a2ad7e9bd4c2fd2a9
Parent: 964fe080d94db82a3268443e9b9ece4c60246414
Author: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>
AuthorDate: Tue Oct 27 16:54:19 2009 -0700
Committer: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>
CommitDate: Tue Oct 27 16:54:19 2009 -0700
xen: set up mmu_ops before trying to set any ptes
xen_setup_stackprotector() ends up trying to set page protections,
so we need to have vm_mmu_ops set up before trying to do so.
Failing to do so causes an early boot crash.
[ Impact: Fix early crash under Xen. ]
Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>
---
arch/x86/xen/enlighten.c | 3 ++-
1 files changed, 2 insertions(+), 1 deletions(-)
diff --git a/arch/x86/xen/enlighten.c b/arch/x86/xen/enlighten.c
index 3439616..23a4d80 100644
--- a/arch/x86/xen/enlighten.c
+++ b/arch/x86/xen/enlighten.c
@@ -1075,6 +1075,8 @@ asmlinkage void __init xen_start_kernel(void)
* Set up some pagetable state before starting to set any ptes.
*/
+ xen_init_mmu_ops();
+
/* Prevent unwanted bits from being set in PTEs. */
__supported_pte_mask &= ~_PAGE_GLOBAL;
if (!xen_initial_domain())
@@ -1099,7 +1101,6 @@ asmlinkage void __init xen_start_kernel(void)
*/
xen_setup_stackprotector();
- xen_init_mmu_ops();
xen_init_irq_ops();
xen_init_cpuid_mask();
--
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