| Message ID | 20181010084119.17539-3-fanc.fnst@cn.fujitsu.com (mailing list archive) |
|---|---|
| State | Not Applicable, archived |
| Headers | show |
| Series | x86/boot/KASLR: Parse ACPI table and limit kaslr in immovable memory | expand |
diff --git a/arch/x86/boot/compressed/kaslr.c b/arch/x86/boot/compressed/kaslr.c index 9ed9709d9947..573e582e8709 100644 --- a/arch/x86/boot/compressed/kaslr.c +++ b/arch/x86/boot/compressed/kaslr.c @@ -417,6 +417,9 @@ static void mem_avoid_init(unsigned long input, unsigned long input_size, /* Mark the memmap regions we need to avoid */ handle_mem_options(); + /* Mark the immovable regions we need to choose */ + get_immovable_mem(); + #ifdef CONFIG_X86_VERBOSE_BOOTUP /* Make sure video RAM can be used. */ add_identity_map(0, PMD_SIZE);
If CONFIG_MEMORY_HOTREMOVE enabled, walk through the acpi srat memory tables and store those immovable memory regions so that kaslr can get where to choose for randomization. Signed-off-by: Chao Fan <fanc.fnst@cn.fujitsu.com> --- arch/x86/boot/compressed/kaslr.c | 3 +++ 1 file changed, 3 insertions(+)