diff options
Diffstat (limited to 'kernel/kexec_core.c')
| -rw-r--r-- | kernel/kexec_core.c | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/kernel/kexec_core.c b/kernel/kexec_core.c index c22ad51c4317..3e62b944c883 100644 --- a/kernel/kexec_core.c +++ b/kernel/kexec_core.c @@ -210,6 +210,16 @@ int sanity_check_segment_list(struct kimage *image) } #endif + /* + * The destination addresses are searched from system RAM rather than + * being allocated from the buddy allocator, so they are not guaranteed + * to be accepted by the current kernel. Accept the destination + * addresses before kexec swaps their content with the segments' source + * pages to avoid accessing memory before it is accepted. + */ + for (i = 0; i < nr_segments; i++) + accept_memory(image->segment[i].mem, image->segment[i].memsz); + return 0; } |