diff options
Diffstat (limited to 'arch/s390/boot/startup.c')
| -rw-r--r-- | arch/s390/boot/startup.c | 9 |
1 files changed, 6 insertions, 3 deletions
diff --git a/arch/s390/boot/startup.c b/arch/s390/boot/startup.c index c8f149ad77e5..abe6e6c0ab98 100644 --- a/arch/s390/boot/startup.c +++ b/arch/s390/boot/startup.c @@ -182,12 +182,15 @@ static void kaslr_adjust_got(unsigned long offset) * Merge information from several sources into a single ident_map_size value. * "ident_map_size" represents the upper limit of physical memory we may ever * reach. It might not be all online memory, but also include standby (offline) - * memory. "ident_map_size" could be lower then actual standby or even online + * memory or memory areas reserved for other means (e.g., memory devices such as + * virtio-mem). + * + * "ident_map_size" could be lower then actual standby/reserved or even online * memory present, due to limiting factors. We should never go above this limit. * It is the size of our identity mapping. * * Consider the following factors: - * 1. max_physmem_end - end of physical memory online or standby. + * 1. max_physmem_end - end of physical memory online, standby or reserved. * Always >= end of the last online memory range (get_physmem_online_end()). * 2. CONFIG_MAX_PHYSMEM_BITS - the maximum size of physical memory the * kernel is able to support. @@ -480,7 +483,7 @@ void startup_kernel(void) * __vmlinux_relocs_64_end as the lower range address. However, * .amode31 section is written to by the decompressed kernel - at * that time the contents of .vmlinux.relocs is not needed anymore. - * Conversly, .vmlinux.relocs is read only by the decompressor, even + * Conversely, .vmlinux.relocs is read only by the decompressor, even * before the kernel started. Therefore, in case the two sections * overlap there is no risk of corrupting any data. */ |