diff options
Diffstat (limited to 'arch/x86/mm/init_64.c')
| -rw-r--r-- | arch/x86/mm/init_64.c | 13 |
1 files changed, 4 insertions, 9 deletions
diff --git a/arch/x86/mm/init_64.c b/arch/x86/mm/init_64.c index 9a471be4f5f1..eabcaed76c28 100644 --- a/arch/x86/mm/init_64.c +++ b/arch/x86/mm/init_64.c @@ -354,17 +354,10 @@ static void __init find_early_table_space(unsigned long end) * need roughly 0.5KB per GB. */ start = 0x8000; - table_start = find_e820_area(start, end, tables); + table_start = find_e820_area(start, end, tables, PAGE_SIZE); if (table_start == -1UL) panic("Cannot find space for the kernel page tables"); - /* - * When you have a lot of RAM like 256GB, early_table will not fit - * into 0x8000 range, find_e820_area() will find area after kernel - * bss but the table_start is not page aligned, so need to round it - * up to avoid overlap with bss: - */ - table_start = round_up(table_start, PAGE_SIZE); table_start >>= PAGE_SHIFT; table_end = table_start; @@ -420,7 +413,9 @@ void __init_refok init_memory_mapping(unsigned long start, unsigned long end) mmu_cr4_features = read_cr4(); __flush_tlb_all(); - reserve_early(table_start << PAGE_SHIFT, table_end << PAGE_SHIFT, "PGTABLE"); + if (!after_bootmem) + reserve_early(table_start << PAGE_SHIFT, + table_end << PAGE_SHIFT, "PGTABLE"); } #ifndef CONFIG_NUMA |