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@xxxxxxxxxxxxxx> --- arch/x86/boot/compressed/kaslr.c | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/arch/x86/boot/compressed/kaslr.c b/arch/x86/boot/compressed/kaslr.c index 9ed9709d9947..0c3567bc231c 100644 --- a/arch/x86/boot/compressed/kaslr.c +++ b/arch/x86/boot/compressed/kaslr.c @@ -417,6 +417,11 @@ static void mem_avoid_init(unsigned long input, unsigned long input_size, /* Mark the memmap regions we need to avoid */ handle_mem_options(); +#ifdef CONFIG_MEMORY_HOTREMOVE + /* Mark the immovable regions we need to choose */ + get_immovable_mem(); +#endif + #ifdef CONFIG_X86_VERBOSE_BOOTUP /* Make sure video RAM can be used. */ add_identity_map(0, PMD_SIZE); -- 2.17.1
