diff options
Diffstat (limited to 'init/main.c')
| -rw-r--r-- | init/main.c | 105 |
1 files changed, 21 insertions, 84 deletions
diff --git a/init/main.c b/init/main.c index 65aab4e9bb49..af50044deed5 100644 --- a/init/main.c +++ b/init/main.c @@ -62,7 +62,6 @@ #include <linux/rmap.h> #include <linux/mempolicy.h> #include <linux/key.h> -#include <linux/page_ext.h> #include <linux/debug_locks.h> #include <linux/debugobjects.h> #include <linux/lockdep.h> @@ -156,7 +155,7 @@ static char *extra_init_args; #ifdef CONFIG_BOOT_CONFIG /* Is bootconfig on command line? */ -static bool bootconfig_found = IS_ENABLED(CONFIG_BOOT_CONFIG_FORCE); +static bool bootconfig_found; static size_t initargs_offs; #else # define bootconfig_found false @@ -429,7 +428,7 @@ static void __init setup_boot_config(void) err = parse_args("bootconfig", tmp_cmdline, NULL, 0, 0, 0, NULL, bootconfig_params); - if (IS_ERR(err) || !bootconfig_found) + if (IS_ERR(err) || !(bootconfig_found || IS_ENABLED(CONFIG_BOOT_CONFIG_FORCE))) return; /* parse_args() stops at the next param of '--' and returns an address */ @@ -437,7 +436,11 @@ static void __init setup_boot_config(void) initargs_offs = err - tmp_cmdline; if (!data) { - pr_err("'bootconfig' found on command line, but no bootconfig found\n"); + /* If user intended to use bootconfig, show an error level message */ + if (bootconfig_found) + pr_err("'bootconfig' found on command line, but no bootconfig found\n"); + else + pr_info("No bootconfig data provided, so skipping bootconfig"); return; } @@ -707,7 +710,7 @@ noinline void __ref __noreturn rest_init(void) rcu_read_unlock(); numa_default_policy(); - pid = kernel_thread(kthreadd, NULL, CLONE_FS | CLONE_FILES); + pid = kernel_thread(kthreadd, NULL, NULL, CLONE_FS | CLONE_FILES); rcu_read_lock(); kthreadd_task = find_task_by_pid_ns(pid, &init_pid_ns); rcu_read_unlock(); @@ -803,69 +806,6 @@ static inline void initcall_debug_enable(void) } #endif -/* Report memory auto-initialization states for this boot. */ -static void __init report_meminit(void) -{ - const char *stack; - - if (IS_ENABLED(CONFIG_INIT_STACK_ALL_PATTERN)) - stack = "all(pattern)"; - else if (IS_ENABLED(CONFIG_INIT_STACK_ALL_ZERO)) - stack = "all(zero)"; - else if (IS_ENABLED(CONFIG_GCC_PLUGIN_STRUCTLEAK_BYREF_ALL)) - stack = "byref_all(zero)"; - else if (IS_ENABLED(CONFIG_GCC_PLUGIN_STRUCTLEAK_BYREF)) - stack = "byref(zero)"; - else if (IS_ENABLED(CONFIG_GCC_PLUGIN_STRUCTLEAK_USER)) - stack = "__user(zero)"; - else - stack = "off"; - - pr_info("mem auto-init: stack:%s, heap alloc:%s, heap free:%s\n", - stack, want_init_on_alloc(GFP_KERNEL) ? "on" : "off", - want_init_on_free() ? "on" : "off"); - if (want_init_on_free()) - pr_info("mem auto-init: clearing system memory may take some time...\n"); -} - -/* - * Set up kernel memory allocators - */ -static void __init mm_init(void) -{ - /* - * page_ext requires contiguous pages, - * bigger than MAX_ORDER unless SPARSEMEM. - */ - page_ext_init_flatmem(); - init_mem_debugging_and_hardening(); - kfence_alloc_pool(); - report_meminit(); - kmsan_init_shadow(); - stack_depot_early_init(); - mem_init(); - mem_init_print_info(); - kmem_cache_init(); - /* - * page_owner must be initialized after buddy is ready, and also after - * slab is ready so that stack_depot_init() works properly - */ - page_ext_init_flatmem_late(); - kmemleak_init(); - pgtable_init(); - debug_objects_mem_init(); - vmalloc_init(); - /* If no deferred init page_ext now, as vmap is fully initialized */ - if (!deferred_struct_pages) - page_ext_init(); - /* Should be run before the first non-init thread is created */ - init_espfix_bsp(); - /* Should be run after espfix64 is set up. */ - pti_init(); - kmsan_init_runtime(); - mm_cache_init(); -} - #ifdef CONFIG_RANDOMIZE_KSTACK_OFFSET DEFINE_STATIC_KEY_MAYBE_RO(CONFIG_RANDOMIZE_KSTACK_OFFSET_DEFAULT, randomize_kstack_offset); @@ -968,9 +908,6 @@ asmlinkage __visible void __init __no_sanitize_address __noreturn start_kernel(v smp_prepare_boot_cpu(); /* arch-specific boot-cpu hooks */ boot_cpu_hotplug_init(); - build_all_zonelists(NULL); - page_alloc_init(); - pr_notice("Kernel command line: %s\n", saved_command_line); /* parameters may set static keys */ jump_label_init(); @@ -992,13 +929,13 @@ asmlinkage __visible void __init __no_sanitize_address __noreturn start_kernel(v /* * These use large bootmem allocations and must precede - * kmem_cache_init() + * initalization of page allocator */ setup_log_buf(0); vfs_caches_init_early(); sort_main_extable(); trap_init(); - mm_init(); + mm_core_init(); poking_init(); ftrace_init(); @@ -1088,14 +1025,6 @@ asmlinkage __visible void __init __no_sanitize_address __noreturn start_kernel(v */ locking_selftest(); - /* - * This needs to be called before any devices perform DMA - * operations that might use the SWIOTLB bounce buffers. It will - * mark the bounce buffers as decrypted so that their usage will - * not cause "plain-text" data to be decrypted when accessed. - */ - mem_encrypt_init(); - #ifdef CONFIG_BLK_DEV_INITRD if (initrd_start && !initrd_below_start_ok && page_to_pfn(virt_to_page((void *)initrd_start)) < min_low_pfn) { @@ -1112,6 +1041,17 @@ asmlinkage __visible void __init __no_sanitize_address __noreturn start_kernel(v late_time_init(); sched_clock_init(); calibrate_delay(); + + /* + * This needs to be called before any devices perform DMA + * operations that might use the SWIOTLB bounce buffers. It will + * mark the bounce buffers as decrypted so that their usage will + * not cause "plain-text" data to be decrypted when accessed. It + * must be called after late_time_init() so that Hyper-V x86/x64 + * hypercalls work when the SWIOTLB bounce buffers are decrypted. + */ + mem_encrypt_init(); + pid_idr_init(); anon_vma_init(); #ifdef CONFIG_X86 @@ -1627,9 +1567,6 @@ static noinline void __init kernel_init_freeable(void) padata_init(); page_alloc_init_late(); - /* Initialize page ext after all struct pages are initialized. */ - if (deferred_struct_pages) - page_ext_init(); do_basic_setup(); |