diff options
Diffstat (limited to 'arch/arm64/mm')
| -rw-r--r-- | arch/arm64/mm/init.c | 27 |
1 files changed, 27 insertions, 0 deletions
diff --git a/arch/arm64/mm/init.c b/arch/arm64/mm/init.c index 09d19207362d..89ba3cd0fe44 100644 --- a/arch/arm64/mm/init.c +++ b/arch/arm64/mm/init.c @@ -134,10 +134,35 @@ static void __init reserve_crashkernel(void) crashk_res.start = crash_base; crashk_res.end = crash_base + crash_size - 1; } + +static void __init kexec_reserve_crashkres_pages(void) +{ +#ifdef CONFIG_HIBERNATION + phys_addr_t addr; + struct page *page; + + if (!crashk_res.end) + return; + + /* + * To reduce the size of hibernation image, all the pages are + * marked as Reserved initially. + */ + for (addr = crashk_res.start; addr < (crashk_res.end + 1); + addr += PAGE_SIZE) { + page = phys_to_page(addr); + SetPageReserved(page); + } +#endif +} #else static void __init reserve_crashkernel(void) { } + +static void __init kexec_reserve_crashkres_pages(void) +{ +} #endif /* CONFIG_KEXEC_CORE */ /* @@ -517,6 +542,8 @@ void __init mem_init(void) /* this will put all unused low memory onto the freelists */ free_all_bootmem(); + kexec_reserve_crashkres_pages(); + mem_init_print_info(NULL); #define MLK(b, t) b, t, ((t) - (b)) >> 10 |