diff options
Diffstat (limited to 'arch/x86/xen')
| -rw-r--r-- | arch/x86/xen/mmu_pv.c | 11 | ||||
| -rw-r--r-- | arch/x86/xen/setup.c | 2 |
2 files changed, 7 insertions, 6 deletions
diff --git a/arch/x86/xen/mmu_pv.c b/arch/x86/xen/mmu_pv.c index a5d7ed125337..0f4fe206dcc2 100644 --- a/arch/x86/xen/mmu_pv.c +++ b/arch/x86/xen/mmu_pv.c @@ -648,19 +648,20 @@ static int __xen_pgd_walk(struct mm_struct *mm, pgd_t *pgd, unsigned long limit) { int i, nr, flush = 0; - unsigned hole_low, hole_high; + unsigned hole_low = 0, hole_high = 0; /* The limit is the last byte to be touched */ limit--; BUG_ON(limit >= FIXADDR_TOP); +#ifdef CONFIG_X86_64 /* * 64-bit has a great big hole in the middle of the address - * space, which contains the Xen mappings. On 32-bit these - * will end up making a zero-sized hole and so is a no-op. + * space, which contains the Xen mappings. */ - hole_low = pgd_index(USER_LIMIT); - hole_high = pgd_index(PAGE_OFFSET); + hole_low = pgd_index(GUARD_HOLE_BASE_ADDR); + hole_high = pgd_index(GUARD_HOLE_END_ADDR); +#endif nr = pgd_index(limit) + 1; for (i = 0; i < nr; i++) { diff --git a/arch/x86/xen/setup.c b/arch/x86/xen/setup.c index 075ed47993bb..d5f303c0e656 100644 --- a/arch/x86/xen/setup.c +++ b/arch/x86/xen/setup.c @@ -493,7 +493,7 @@ static unsigned long __init xen_foreach_remap_area(unsigned long nr_pages, * The remap information (which mfn remap to which pfn) is contained in the * to be remapped memory itself in a linked list anchored at xen_remap_mfn. * This scheme allows to remap the different chunks in arbitrary order while - * the resulting mapping will be independant from the order. + * the resulting mapping will be independent from the order. */ void __init xen_remap_memory(void) { |