diff options
Diffstat (limited to 'arch/arm64/mm/init.c')
| -rw-r--r-- | arch/arm64/mm/init.c | 20 |
1 files changed, 0 insertions, 20 deletions
diff --git a/arch/arm64/mm/init.c b/arch/arm64/mm/init.c index b99bf3980fc6..0c8c35dd645e 100644 --- a/arch/arm64/mm/init.c +++ b/arch/arm64/mm/init.c @@ -275,26 +275,6 @@ void __init arm64_memblock_init(void) } } - if (IS_ENABLED(CONFIG_RANDOMIZE_BASE)) { - extern u16 memstart_offset_seed; - u64 mmfr0 = read_cpuid(ID_AA64MMFR0_EL1); - int parange = cpuid_feature_extract_unsigned_field( - mmfr0, ID_AA64MMFR0_EL1_PARANGE_SHIFT); - s64 range = linear_region_size - - BIT(id_aa64mmfr0_parange_to_phys_shift(parange)); - - /* - * If the size of the linear region exceeds, by a sufficient - * margin, the size of the region that the physical memory can - * span, randomize the linear region as well. - */ - if (memstart_offset_seed > 0 && range >= (s64)ARM64_MEMSTART_ALIGN) { - range /= ARM64_MEMSTART_ALIGN; - memstart_addr -= ARM64_MEMSTART_ALIGN * - ((range * memstart_offset_seed) >> 16); - } - } - /* * Register the kernel text, kernel data, initrd, and initial * pagetables with memblock. |