diff options
Diffstat (limited to 'arch/x86/xen/setup.c')
| -rw-r--r-- | arch/x86/xen/setup.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/arch/x86/xen/setup.c b/arch/x86/xen/setup.c index c413132702f7..62ceb7864017 100644 --- a/arch/x86/xen/setup.c +++ b/arch/x86/xen/setup.c @@ -119,6 +119,9 @@ char * __init xen_memory_setup(void) * Even though this is normal, usable memory under Xen, reserve * ISA memory anyway because too many things think they can poke * about in there. + * + * In a dom0 kernel, this region is identity mapped with the + * hardware ISA area, so it really is out of bounds. */ e820_add_region(ISA_START_ADDRESS, ISA_END_ADDRESS - ISA_START_ADDRESS, E820_RESERVED); |