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Commit 973df35e authored by Jeremy Fitzhardinge's avatar Jeremy Fitzhardinge
Browse files

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: default avatarJeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>
parent 964fe080

arch/x86/xen/enlighten.c

+2 −1
Original line number Diff line number Diff line
@@ -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();