diff options
Diffstat (limited to 'arch/x86/lib/zimage.c')
| -rw-r--r-- | arch/x86/lib/zimage.c | 26 |
1 files changed, 21 insertions, 5 deletions
diff --git a/arch/x86/lib/zimage.c b/arch/x86/lib/zimage.c index a00964cc8d..50fb16d2da 100644 --- a/arch/x86/lib/zimage.c +++ b/arch/x86/lib/zimage.c @@ -12,10 +12,13 @@ * linux/Documentation/i386/boot.txt */ +#define LOG_CATEGORY LOGC_BOOT + #include <common.h> #include <command.h> #include <env.h> #include <irq_func.h> +#include <log.h> #include <malloc.h> #include <acpi/acpi_table.h> #include <asm/io.h> @@ -28,6 +31,7 @@ #include <asm/arch/timestamp.h> #endif #include <linux/compiler.h> +#include <linux/ctype.h> #include <linux/libfdt.h> /* @@ -172,11 +176,19 @@ static const char *get_kernel_version(struct boot_params *params, { struct setup_header *hdr = ¶ms->hdr; int bootproto; + const char *s, *end; bootproto = get_boot_protocol(hdr, false); if (bootproto < 0x0200 || hdr->setup_sects < 15) return NULL; + /* sanity-check the kernel version in case it is missing */ + for (s = kernel_base + hdr->kernel_version + 0x200, end = s + 0x100; *s; + s++) { + if (!isprint(*s)) + return NULL; + } + return kernel_base + hdr->kernel_version + 0x200; } @@ -200,13 +212,13 @@ struct boot_params *load_zimage(char *image, unsigned long kernel_size, /* determine size of setup */ if (0 == hdr->setup_sects) { - printf("Setup Sectors = 0 (defaulting to 4)\n"); + log_warning("Setup Sectors = 0 (defaulting to 4)\n"); setup_size = 5 * 512; } else { setup_size = (hdr->setup_sects + 1) * 512; } - printf("Setup Size = 0x%8.8lx\n", (ulong)setup_size); + log_debug("Setup Size = 0x%8.8lx\n", (ulong)setup_size); if (setup_size > SETUP_MAX_SIZE) printf("Error: Setup is too large (%d bytes)\n", setup_size); @@ -214,8 +226,8 @@ struct boot_params *load_zimage(char *image, unsigned long kernel_size, /* determine boot protocol version */ bootproto = get_boot_protocol(hdr, true); - printf("Using boot protocol version %x.%02x\n", - (bootproto & 0xff00) >> 8, bootproto & 0xff); + log_debug("Using boot protocol version %x.%02x\n", + (bootproto & 0xff00) >> 8, bootproto & 0xff); version = get_kernel_version(params, image); if (version) @@ -292,6 +304,7 @@ int setup_zimage(struct boot_params *setup_base, char *cmd_line, int auto_boot, struct setup_header *hdr = &setup_base->hdr; int bootproto = get_boot_protocol(hdr, false); + log_debug("Setup E820 entries\n"); setup_base->e820_entries = install_e820_map( ARRAY_SIZE(setup_base->e820_map), setup_base->e820_map); @@ -317,6 +330,7 @@ int setup_zimage(struct boot_params *setup_base, char *cmd_line, int auto_boot, } if (cmd_line) { + log_debug("Setup cmdline\n"); if (bootproto >= 0x0202) { hdr->cmd_line_ptr = (uintptr_t)cmd_line; } else if (bootproto >= 0x0200) { @@ -340,6 +354,7 @@ int setup_zimage(struct boot_params *setup_base, char *cmd_line, int auto_boot, if (IS_ENABLED(CONFIG_GENERATE_ACPI_TABLE)) setup_base->acpi_rsdp_addr = acpi_get_rsdp_addr(); + log_debug("Setup devicetree\n"); setup_device_tree(hdr, (const void *)env_get_hex("fdtaddr", 0)); setup_video(&setup_base->screen_info); @@ -405,7 +420,8 @@ static int do_zboot_load(struct cmd_tbl *cmdtp, int flag, int argc, struct boot_params *from = (struct boot_params *)state.base_ptr; base_ptr = (struct boot_params *)DEFAULT_SETUP_BASE; - printf("Building boot_params at 0x%8.8lx\n", (ulong)base_ptr); + log_debug("Building boot_params at 0x%8.8lx\n", + (ulong)base_ptr); memset(base_ptr, '\0', sizeof(*base_ptr)); base_ptr->hdr = from->hdr; } else { |