diff options
Diffstat (limited to 'arch/x86/xen/setup.c')
| -rw-r--r-- | arch/x86/xen/setup.c | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/arch/x86/xen/setup.c b/arch/x86/xen/setup.c index 2afe55e21d59..210426a26cc0 100644 --- a/arch/x86/xen/setup.c +++ b/arch/x86/xen/setup.c @@ -469,6 +469,15 @@ char * __init xen_memory_setup(void) } /* + * Set the rest as identity mapped, in case PCI BARs are + * located here. + * + * PFNs above MAX_P2M_PFN are considered identity mapped as + * well. + */ + set_phys_range_identity(map[i-1].addr / PAGE_SIZE, ~0ul); + + /* * In domU, the ISA region is normal, usable memory, but we * reserve ISA memory anyway because too many things poke * about in there. |