diff options
Diffstat (limited to 'init')
| -rw-r--r-- | init/Kconfig | 34 | ||||
| -rw-r--r-- | init/initramfs.c | 11 | ||||
| -rw-r--r-- | init/main.c | 21 |
3 files changed, 17 insertions, 49 deletions
diff --git a/init/Kconfig b/init/Kconfig index 72ac3f66bc278..c9ec6e8e4d5d5 100644 --- a/init/Kconfig +++ b/init/Kconfig @@ -765,30 +765,6 @@ config LOG_CPU_MAX_BUF_SHIFT 13 => 8 KB for each CPU 12 => 4 KB for each CPU -config PRINTK_SAFE_LOG_BUF_SHIFT - int "Temporary per-CPU printk log buffer size (12 => 4KB, 13 => 8KB)" - range 10 21 - default 13 - depends on PRINTK - help - Select the size of an alternate printk per-CPU buffer where messages - printed from unsafe contexts are temporary stored. One example would - be NMI messages, another one - printk recursion. The messages are - copied to the main log buffer in a safe context to avoid a deadlock. - The value defines the size as a power of 2. - - Those messages are rare and limited. The largest one is when - a backtrace is printed. It usually fits into 4KB. Select - 8KB if you want to be on the safe side. - - Examples: - 17 => 128 KB for each CPU - 16 => 64 KB for each CPU - 15 => 32 KB for each CPU - 14 => 16 KB for each CPU - 13 => 8 KB for each CPU - 12 => 4 KB for each CPU - config PRINTK_INDEX bool "Printk indexing debugfs interface" depends on PRINTK && DEBUG_FS @@ -890,18 +866,14 @@ config CC_IMPLICIT_FALLTHROUGH default "-Wimplicit-fallthrough=5" if CC_IS_GCC && $(cc-option,-Wimplicit-fallthrough=5) default "-Wimplicit-fallthrough" if CC_IS_CLANG && $(cc-option,-Wunreachable-code-fallthrough) -# Currently, disable gcc-11,12 array-bounds globally. -# We may want to target only particular configurations some day. +# Currently, disable gcc-11+ array-bounds globally. +# It's still broken in gcc-13, so no upper bound yet. config GCC11_NO_ARRAY_BOUNDS def_bool y -config GCC12_NO_ARRAY_BOUNDS - def_bool y - config CC_NO_ARRAY_BOUNDS bool - default y if CC_IS_GCC && GCC_VERSION >= 110000 && GCC_VERSION < 120000 && GCC11_NO_ARRAY_BOUNDS - default y if CC_IS_GCC && GCC_VERSION >= 120000 && GCC_VERSION < 130000 && GCC12_NO_ARRAY_BOUNDS + default y if CC_IS_GCC && GCC_VERSION >= 110000 && GCC11_NO_ARRAY_BOUNDS # # For architectures that know their GCC __int128 support is sound diff --git a/init/initramfs.c b/init/initramfs.c index f6c112e30bd47..e7a01c2ccd1b0 100644 --- a/init/initramfs.c +++ b/init/initramfs.c @@ -60,15 +60,8 @@ static void __init error(char *x) message = x; } -static void panic_show_mem(const char *fmt, ...) -{ - va_list args; - - show_mem(0, NULL); - va_start(args, fmt); - panic(fmt, args); - va_end(args); -} +#define panic_show_mem(fmt, ...) \ + ({ show_mem(0, NULL); panic(fmt, ##__VA_ARGS__); }) /* link hash */ diff --git a/init/main.c b/init/main.c index bb87b789c5439..c62f0c8811d77 100644 --- a/init/main.c +++ b/init/main.c @@ -711,7 +711,7 @@ noinline void __ref 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(); @@ -1092,14 +1092,6 @@ asmlinkage __visible void __init __no_sanitize_address start_kernel(void) */ 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) { @@ -1116,6 +1108,17 @@ asmlinkage __visible void __init __no_sanitize_address start_kernel(void) 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 |