diff options
| -rw-r--r-- | payloads/libpayload/arch/arm/coreboot.c | 276 | ||||
| -rw-r--r-- | payloads/libpayload/arch/arm64/coreboot.c | 276 | ||||
| -rw-r--r-- | payloads/libpayload/arch/x86/coreboot.c | 281 | ||||
| -rw-r--r-- | payloads/libpayload/include/sysinfo.h | 14 | ||||
| -rw-r--r-- | payloads/libpayload/libc/Makefile.inc | 1 | ||||
| -rw-r--r-- | payloads/libpayload/libc/coreboot.c | 319 |
6 files changed, 362 insertions, 805 deletions
diff --git a/payloads/libpayload/arch/arm/coreboot.c b/payloads/libpayload/arch/arm/coreboot.c index a1c3675ab9..056d63e2e6 100644 --- a/payloads/libpayload/arch/arm/coreboot.c +++ b/payloads/libpayload/arch/arm/coreboot.c @@ -35,279 +35,21 @@ /* This pointer gets set in head.S and is passed in from coreboot. */ void *cb_header_ptr; -/* - * Some of this is x86 specific, and the rest of it is generic. Right now, - * since we only support x86, we'll avoid trying to make lots of infrastructure - * we don't need. If in the future, we want to use coreboot on some other - * architecture, then take out the generic parsing code and move it elsewhere. - */ - -/* === Parsing code === */ -/* This is the generic parsing code. */ - -static void cb_parse_memory(void *ptr, struct sysinfo_t *info) -{ - struct cb_memory *mem = ptr; - int count = MEM_RANGE_COUNT(mem); - int i; - - if (count > SYSINFO_MAX_MEM_RANGES) - count = SYSINFO_MAX_MEM_RANGES; - - info->n_memranges = 0; - - for (i = 0; i < count; i++) { - struct cb_memory_range *range = MEM_RANGE_PTR(mem, i); - -#ifdef CONFIG_LP_MEMMAP_RAM_ONLY - if (range->type != CB_MEM_RAM) - continue; -#endif - - info->memrange[info->n_memranges].base = - cb_unpack64(range->start); - - info->memrange[info->n_memranges].size = - cb_unpack64(range->size); - - info->memrange[info->n_memranges].type = range->type; - - info->n_memranges++; - } -} - -static void cb_parse_serial(void *ptr, struct sysinfo_t *info) -{ - info->serial = ((struct cb_serial *)ptr); -} - -#ifdef CONFIG_LP_CHROMEOS -static void cb_parse_vboot_handoff(unsigned char *ptr, struct sysinfo_t *info) -{ - struct cb_range *vbho = (struct cb_range *)ptr; - - info->vboot_handoff = (void *)(uintptr_t)vbho->range_start; - info->vboot_handoff_size = vbho->range_size; -} - -static void cb_parse_vbnv(unsigned char *ptr, struct sysinfo_t *info) -{ - struct lb_range *vbnv = (struct lb_range *)ptr; - - info->vbnv_start = vbnv->range_start; - info->vbnv_size = vbnv->range_size; -} - -static void cb_parse_gpios(unsigned char *ptr, struct sysinfo_t *info) -{ - int i; - struct cb_gpios *gpios = (struct cb_gpios *)ptr; - - info->num_gpios = (gpios->count < SYSINFO_MAX_GPIOS) ? - (gpios->count) : SYSINFO_MAX_GPIOS; - - for (i = 0; i < info->num_gpios; i++) - info->gpios[i] = gpios->gpios[i]; -} - -static void cb_parse_vdat(unsigned char *ptr, struct sysinfo_t *info) -{ - struct lb_range *vdat = (struct lb_range *)ptr; - - info->vdat_addr = phys_to_virt(vdat->range_start); - info->vdat_size = vdat->range_size; -} -#endif - -static void cb_parse_dma(unsigned char *ptr) +static void cb_parse_dma(void *ptr) { struct lb_range *dma = (struct lb_range *)ptr; init_dma_memory(phys_to_virt(dma->range_start), dma->range_size); } -static void cb_parse_tstamp(unsigned char *ptr, struct sysinfo_t *info) +int cb_parse_arch_specific(struct cb_record *rec, struct sysinfo_t *info) { - struct cb_cbmem_tab *const cbmem = (struct cb_cbmem_tab *)ptr; - info->tstamp_table = phys_to_virt(cbmem->cbmem_tab); -} - -static void cb_parse_cbmem_cons(unsigned char *ptr, struct sysinfo_t *info) -{ - struct cb_cbmem_tab *const cbmem = (struct cb_cbmem_tab *)ptr; - info->cbmem_cons = phys_to_virt(cbmem->cbmem_tab); -} - -static void cb_parse_mrc_cache(unsigned char *ptr, struct sysinfo_t *info) -{ - struct cb_cbmem_tab *const cbmem = (struct cb_cbmem_tab *)ptr; - info->mrc_cache = phys_to_virt(cbmem->cbmem_tab); -} - -static void cb_parse_board_id(unsigned char *ptr, struct sysinfo_t *info) -{ - struct cb_board_id *const cbbid = (struct cb_board_id *)ptr; - info->board_id = cbbid->board_id; -} - -#ifdef CONFIG_LP_NVRAM -static void cb_parse_optiontable(void *ptr, struct sysinfo_t *info) -{ - /* ptr points to a coreboot table entry and is already virtual */ - info->option_table = ptr; -} - -static void cb_parse_checksum(void *ptr, struct sysinfo_t *info) -{ - struct cb_cmos_checksum *cmos_cksum = ptr; - info->cmos_range_start = cmos_cksum->range_start; - info->cmos_range_end = cmos_cksum->range_end; - info->cmos_checksum_location = cmos_cksum->location; -} -#endif - -#ifdef CONFIG_LP_COREBOOT_VIDEO_CONSOLE -static void cb_parse_framebuffer(void *ptr, struct sysinfo_t *info) -{ - /* ptr points to a coreboot table entry and is already virtual */ - info->framebuffer = ptr; -} -#endif - -static void cb_parse_string(unsigned char *ptr, char **info) -{ - *info = (char *)((struct cb_string *)ptr)->string; -} - -static int cb_parse_header(void *addr, struct sysinfo_t *info) -{ - struct cb_header *header = addr; - unsigned char *ptr = addr; - void *forward; - int i; - - /* No signature found. */ - if (strncmp((const char *)header->signature, "LBIO", 4)) - return -1; - - if (!header->table_bytes) + switch(rec->tag) { + case CB_TAG_DMA: + cb_parse_dma(rec); + break; + default: return 0; - - /* Make sure the checksums match. */ - if (ipchksum((u16 *) header, sizeof(*header)) != 0) - return -1; - - if (ipchksum((u16 *) (ptr + sizeof(*header)), - header->table_bytes) != header->table_checksum) - return -1; - - info->header = header; - - /* - * Valid board IDs are small numbers, preset this to an invalid value - * for the case when firmware does not supply the board ID. - */ - info->board_id = ~0; - - /* Now, walk the tables. */ - ptr += header->header_bytes; - - for (i = 0; i < header->table_entries; i++) { - struct cb_record *rec = (struct cb_record *)ptr; - - /* We only care about a few tags here (maybe more later). */ - switch (rec->tag) { - case CB_TAG_FORWARD: - forward = phys_to_virt((void *)(unsigned long)((struct cb_forward *)rec)->forward); - return cb_parse_header(forward, info); - continue; - case CB_TAG_MEMORY: - cb_parse_memory(ptr, info); - break; - case CB_TAG_SERIAL: - cb_parse_serial(ptr, info); - break; - case CB_TAG_VERSION: - cb_parse_string(ptr, &info->cb_version); - break; - case CB_TAG_EXTRA_VERSION: - cb_parse_string(ptr, &info->extra_version); - break; - case CB_TAG_BUILD: - cb_parse_string(ptr, &info->build); - break; - case CB_TAG_COMPILE_TIME: - cb_parse_string(ptr, &info->compile_time); - break; - case CB_TAG_COMPILE_BY: - cb_parse_string(ptr, &info->compile_by); - break; - case CB_TAG_COMPILE_HOST: - cb_parse_string(ptr, &info->compile_host); - break; - case CB_TAG_COMPILE_DOMAIN: - cb_parse_string(ptr, &info->compile_domain); - break; - case CB_TAG_COMPILER: - cb_parse_string(ptr, &info->compiler); - break; - case CB_TAG_LINKER: - cb_parse_string(ptr, &info->linker); - break; - case CB_TAG_ASSEMBLER: - cb_parse_string(ptr, &info->assembler); - break; -#ifdef CONFIG_LP_NVRAM - case CB_TAG_CMOS_OPTION_TABLE: - cb_parse_optiontable(ptr, info); - break; - case CB_TAG_OPTION_CHECKSUM: - cb_parse_checksum(ptr, info); - break; -#endif -#ifdef CONFIG_LP_COREBOOT_VIDEO_CONSOLE - // FIXME we should warn on serial if coreboot set up a - // framebuffer buf the payload does not know about it. - case CB_TAG_FRAMEBUFFER: - cb_parse_framebuffer(ptr, info); - break; -#endif - case CB_TAG_MAINBOARD: - info->mainboard = (struct cb_mainboard *)ptr; - break; -#ifdef CONFIG_LP_CHROMEOS - case CB_TAG_GPIO: - cb_parse_gpios(ptr, info); - break; - case CB_TAG_VDAT: - cb_parse_vdat(ptr, info); - break; - case CB_TAG_VBNV: - cb_parse_vbnv(ptr, info); - break; - case CB_TAG_VBOOT_HANDOFF: - cb_parse_vboot_handoff(ptr, info); - break; -#endif - case CB_TAG_DMA: - cb_parse_dma(ptr); - break; - case CB_TAG_TIMESTAMPS: - cb_parse_tstamp(ptr, info); - break; - case CB_TAG_CBMEM_CONSOLE: - cb_parse_cbmem_cons(ptr, info); - break; - case CB_TAG_MRC_CACHE: - cb_parse_mrc_cache(ptr, info); - break; - case CB_TAG_BOARD_ID: - cb_parse_board_id(ptr, info); - break; - } - - ptr += rec->size; } - return 1; } @@ -316,7 +58,5 @@ static int cb_parse_header(void *addr, struct sysinfo_t *info) int get_coreboot_info(struct sysinfo_t *info) { - int ret = cb_parse_header(cb_header_ptr, info); - - return (ret == 1) ? 0 : -1; + return cb_parse_header(cb_header_ptr, 1, info); } diff --git a/payloads/libpayload/arch/arm64/coreboot.c b/payloads/libpayload/arch/arm64/coreboot.c index 6d7c95580a..056d63e2e6 100644 --- a/payloads/libpayload/arch/arm64/coreboot.c +++ b/payloads/libpayload/arch/arm64/coreboot.c @@ -35,279 +35,21 @@ /* This pointer gets set in head.S and is passed in from coreboot. */ void *cb_header_ptr; -/* - * Some of this is x86 specific, and the rest of it is generic. Right now, - * since we only support x86, we'll avoid trying to make lots of infrastructure - * we don't need. If in the future, we want to use coreboot on some other - * architecture, then take out the generic parsing code and move it elsewhere. - */ - -/* === Parsing code === */ -/* This is the generic parsing code. */ - -static void cb_parse_memory(void *ptr, struct sysinfo_t *info) -{ - struct cb_memory *mem = ptr; - int count = MEM_RANGE_COUNT(mem); - int i; - - if (count > SYSINFO_MAX_MEM_RANGES) - count = SYSINFO_MAX_MEM_RANGES; - - info->n_memranges = 0; - - for (i = 0; i < count; i++) { - struct cb_memory_range *range = MEM_RANGE_PTR(mem, i); - -#ifdef CONFIG_LP_MEMMAP_RAM_ONLY - if (range->type != CB_MEM_RAM) - continue; -#endif - - info->memrange[info->n_memranges].base = - cb_unpack64(range->start); - - info->memrange[info->n_memranges].size = - cb_unpack64(range->size); - - info->memrange[info->n_memranges].type = range->type; - - info->n_memranges++; - } -} - -static void cb_parse_serial(void *ptr, struct sysinfo_t *info) -{ - info->serial = ((struct cb_serial *)ptr); -} - -#ifdef CONFIG_LP_CHROMEOS -static void cb_parse_vboot_handoff(unsigned char *ptr, struct sysinfo_t *info) -{ - struct lb_range *vbho = (struct lb_range *)ptr; - - info->vboot_handoff = (void *)(uintptr_t)vbho->range_start; - info->vboot_handoff_size = vbho->range_size; -} - -static void cb_parse_vbnv(unsigned char *ptr, struct sysinfo_t *info) -{ - struct lb_range *vbnv = (struct lb_range *)ptr; - - info->vbnv_start = vbnv->range_start; - info->vbnv_size = vbnv->range_size; -} - -static void cb_parse_gpios(unsigned char *ptr, struct sysinfo_t *info) -{ - int i; - struct cb_gpios *gpios = (struct cb_gpios *)ptr; - - info->num_gpios = (gpios->count < SYSINFO_MAX_GPIOS) ? - (gpios->count) : SYSINFO_MAX_GPIOS; - - for (i = 0; i < info->num_gpios; i++) - info->gpios[i] = gpios->gpios[i]; -} - -static void cb_parse_vdat(unsigned char *ptr, struct sysinfo_t *info) -{ - struct lb_range *vdat = (struct lb_range *)ptr; - - info->vdat_addr = phys_to_virt(vdat->range_start); - info->vdat_size = vdat->range_size; -} -#endif - -static void cb_parse_dma(unsigned char *ptr) +static void cb_parse_dma(void *ptr) { struct lb_range *dma = (struct lb_range *)ptr; init_dma_memory(phys_to_virt(dma->range_start), dma->range_size); } -static void cb_parse_tstamp(unsigned char *ptr, struct sysinfo_t *info) +int cb_parse_arch_specific(struct cb_record *rec, struct sysinfo_t *info) { - struct cb_cbmem_tab *const cbmem = (struct cb_cbmem_tab *)ptr; - info->tstamp_table = phys_to_virt(cbmem->cbmem_tab); -} - -static void cb_parse_cbmem_cons(unsigned char *ptr, struct sysinfo_t *info) -{ - struct cb_cbmem_tab *const cbmem = (struct cb_cbmem_tab *)ptr; - info->cbmem_cons = phys_to_virt(cbmem->cbmem_tab); -} - -static void cb_parse_mrc_cache(unsigned char *ptr, struct sysinfo_t *info) -{ - struct cb_cbmem_tab *const cbmem = (struct cb_cbmem_tab *)ptr; - info->mrc_cache = phys_to_virt(cbmem->cbmem_tab); -} - -static void cb_parse_board_id(unsigned char *ptr, struct sysinfo_t *info) -{ - struct cb_board_id *const cbbid = (struct cb_board_id *)ptr; - info->board_id = cbbid->board_id; -} - -#ifdef CONFIG_LP_NVRAM -static void cb_parse_optiontable(void *ptr, struct sysinfo_t *info) -{ - /* ptr points to a coreboot table entry and is already virtual */ - info->option_table = ptr; -} - -static void cb_parse_checksum(void *ptr, struct sysinfo_t *info) -{ - struct cb_cmos_checksum *cmos_cksum = ptr; - info->cmos_range_start = cmos_cksum->range_start; - info->cmos_range_end = cmos_cksum->range_end; - info->cmos_checksum_location = cmos_cksum->location; -} -#endif - -#ifdef CONFIG_LP_COREBOOT_VIDEO_CONSOLE -static void cb_parse_framebuffer(void *ptr, struct sysinfo_t *info) -{ - /* ptr points to a coreboot table entry and is already virtual */ - info->framebuffer = ptr; -} -#endif - -static void cb_parse_string(unsigned char *ptr, char **info) -{ - *info = (char *)((struct cb_string *)ptr)->string; -} - -static int cb_parse_header(void *addr, struct sysinfo_t *info) -{ - struct cb_header *header = addr; - unsigned char *ptr = addr; - void *forward; - int i; - - /* No signature found. */ - if (strncmp((const char *)header->signature, "LBIO", 4)) - return -1; - - if (!header->table_bytes) + switch(rec->tag) { + case CB_TAG_DMA: + cb_parse_dma(rec); + break; + default: return 0; - - /* Make sure the checksums match. */ - if (ipchksum((u16 *) header, sizeof(*header)) != 0) - return -1; - - if (ipchksum((u16 *) (ptr + sizeof(*header)), - header->table_bytes) != header->table_checksum) - return -1; - - info->header = header; - - /* - * Valid board IDs are small numbers, preset this to an invalid value - * for the case when firmware does not supply the board ID. - */ - info->board_id = ~0; - - /* Now, walk the tables. */ - ptr += header->header_bytes; - - for (i = 0; i < header->table_entries; i++) { - struct cb_record *rec = (struct cb_record *)ptr; - - /* We only care about a few tags here (maybe more later). */ - switch (rec->tag) { - case CB_TAG_FORWARD: - forward = phys_to_virt((void *)(unsigned long)((struct cb_forward *)rec)->forward); - return cb_parse_header(forward, info); - continue; - case CB_TAG_MEMORY: - cb_parse_memory(ptr, info); - break; - case CB_TAG_SERIAL: - cb_parse_serial(ptr, info); - break; - case CB_TAG_VERSION: - cb_parse_string(ptr, &info->cb_version); - break; - case CB_TAG_EXTRA_VERSION: - cb_parse_string(ptr, &info->extra_version); - break; - case CB_TAG_BUILD: - cb_parse_string(ptr, &info->build); - break; - case CB_TAG_COMPILE_TIME: - cb_parse_string(ptr, &info->compile_time); - break; - case CB_TAG_COMPILE_BY: - cb_parse_string(ptr, &info->compile_by); - break; - case CB_TAG_COMPILE_HOST: - cb_parse_string(ptr, &info->compile_host); - break; - case CB_TAG_COMPILE_DOMAIN: - cb_parse_string(ptr, &info->compile_domain); - break; - case CB_TAG_COMPILER: - cb_parse_string(ptr, &info->compiler); - break; - case CB_TAG_LINKER: - cb_parse_string(ptr, &info->linker); - break; - case CB_TAG_ASSEMBLER: - cb_parse_string(ptr, &info->assembler); - break; -#ifdef CONFIG_LP_NVRAM - case CB_TAG_CMOS_OPTION_TABLE: - cb_parse_optiontable(ptr, info); - break; - case CB_TAG_OPTION_CHECKSUM: - cb_parse_checksum(ptr, info); - break; -#endif -#ifdef CONFIG_LP_COREBOOT_VIDEO_CONSOLE - // FIXME we should warn on serial if coreboot set up a - // framebuffer buf the payload does not know about it. - case CB_TAG_FRAMEBUFFER: - cb_parse_framebuffer(ptr, info); - break; -#endif - case CB_TAG_MAINBOARD: - info->mainboard = (struct cb_mainboard *)ptr; - break; -#ifdef CONFIG_LP_CHROMEOS - case CB_TAG_GPIO: - cb_parse_gpios(ptr, info); - break; - case CB_TAG_VDAT: - cb_parse_vdat(ptr, info); - break; - case CB_TAG_VBNV: - cb_parse_vbnv(ptr, info); - break; - case CB_TAG_VBOOT_HANDOFF: - cb_parse_vboot_handoff(ptr, info); - break; -#endif - case CB_TAG_DMA: - cb_parse_dma(ptr); - break; - case CB_TAG_TIMESTAMPS: - cb_parse_tstamp(ptr, info); - break; - case CB_TAG_CBMEM_CONSOLE: - cb_parse_cbmem_cons(ptr, info); - break; - case CB_TAG_MRC_CACHE: - cb_parse_mrc_cache(ptr, info); - break; - case CB_TAG_BOARD_ID: - cb_parse_board_id(ptr, info); - break; - } - - ptr += rec->size; } - return 1; } @@ -316,7 +58,5 @@ static int cb_parse_header(void *addr, struct sysinfo_t *info) int get_coreboot_info(struct sysinfo_t *info) { - int ret = cb_parse_header(cb_header_ptr, info); - - return (ret == 1) ? 0 : -1; + return cb_parse_header(cb_header_ptr, 1, info); } diff --git a/payloads/libpayload/arch/x86/coreboot.c b/payloads/libpayload/arch/x86/coreboot.c index 43fde9f660..1f37b80f14 100644 --- a/payloads/libpayload/arch/x86/coreboot.c +++ b/payloads/libpayload/arch/x86/coreboot.c @@ -31,7 +31,6 @@ #include <libpayload-config.h> #include <libpayload.h> #include <coreboot_tables.h> -#include <stdint.h> /* * Some of this is x86 specific, and the rest of it is generic. Right now, @@ -43,289 +42,33 @@ /* === Parsing code === */ /* This is the generic parsing code. */ -static void cb_parse_memory(void *ptr, struct sysinfo_t *info) -{ - struct cb_memory *mem = ptr; - int count = MEM_RANGE_COUNT(mem); - int i; - - if (count > SYSINFO_MAX_MEM_RANGES) - count = SYSINFO_MAX_MEM_RANGES; - - info->n_memranges = 0; - - for (i = 0; i < count; i++) { - struct cb_memory_range *range = MEM_RANGE_PTR(mem, i); - -#ifdef CONFIG_LP_MEMMAP_RAM_ONLY - if (range->type != CB_MEM_RAM) - continue; -#endif - - info->memrange[info->n_memranges].base = - cb_unpack64(range->start); - - info->memrange[info->n_memranges].size = - cb_unpack64(range->size); - - info->memrange[info->n_memranges].type = range->type; - - info->n_memranges++; - } -} - -static void cb_parse_serial(void *ptr, struct sysinfo_t *info) -{ - info->serial = ((struct cb_serial *)ptr); -} - -#ifdef CONFIG_LP_CHROMEOS -static void cb_parse_vboot_handoff(unsigned char *ptr, struct sysinfo_t *info) -{ - struct lb_range *vbho = (struct lb_range *)ptr; - - info->vboot_handoff = (void *)(uintptr_t)vbho->range_start; - info->vboot_handoff_size = vbho->range_size; -} - -static void cb_parse_vbnv(unsigned char *ptr, struct sysinfo_t *info) -{ - struct lb_range *vbnv = (struct lb_range *)ptr; - - info->vbnv_start = vbnv->range_start; - info->vbnv_size = vbnv->range_size; -} - -static void cb_parse_gpios(unsigned char *ptr, struct sysinfo_t *info) -{ - int i; - struct cb_gpios *gpios = (struct cb_gpios *)ptr; - - info->num_gpios = (gpios->count < SYSINFO_MAX_GPIOS) ? - (gpios->count) : SYSINFO_MAX_GPIOS; - - for (i = 0; i < info->num_gpios; i++) - info->gpios[i] = gpios->gpios[i]; -} - -static void cb_parse_vdat(unsigned char *ptr, struct sysinfo_t *info) -{ - struct lb_range *vdat = (struct lb_range *) ptr; - - info->vdat_addr = phys_to_virt(vdat->range_start); - info->vdat_size = vdat->range_size; -} -#endif - -static void cb_parse_tstamp(unsigned char *ptr, struct sysinfo_t *info) -{ - struct cb_cbmem_tab *const cbmem = (struct cb_cbmem_tab *)ptr; - info->tstamp_table = phys_to_virt(cbmem->cbmem_tab); -} - -static void cb_parse_cbmem_cons(unsigned char *ptr, struct sysinfo_t *info) -{ - struct cb_cbmem_tab *const cbmem = (struct cb_cbmem_tab *)ptr; - info->cbmem_cons = phys_to_virt(cbmem->cbmem_tab); -} - -static void cb_parse_mrc_cache(unsigned char *ptr, struct sysinfo_t *info) -{ - struct cb_cbmem_tab *const cbmem = (struct cb_cbmem_tab *)ptr; - info->mrc_cache = phys_to_virt(cbmem->cbmem_tab); -} - -static void cb_parse_acpi_gnvs(unsigned char *ptr, struct sysinfo_t *info) +static void cb_parse_acpi_gnvs(void *ptr, struct sysinfo_t *info) { struct cb_cbmem_tab *const cbmem = (struct cb_cbmem_tab *)ptr; info->acpi_gnvs = phys_to_virt(cbmem->cbmem_tab); } -static void cb_parse_board_id(unsigned char *ptr, struct sysinfo_t *info) -{ - struct cb_board_id *const cbbid = (struct cb_board_id *)ptr; - info->board_id = cbbid->board_id; -} - -#ifdef CONFIG_LP_NVRAM -static void cb_parse_optiontable(void *ptr, struct sysinfo_t *info) -{ - /* ptr points to a coreboot table entry and is already virtual */ - info->option_table = ptr; -} - -static void cb_parse_checksum(void *ptr, struct sysinfo_t *info) -{ - struct cb_cmos_checksum *cmos_cksum = ptr; - info->cmos_range_start = cmos_cksum->range_start; - info->cmos_range_end = cmos_cksum->range_end; - info->cmos_checksum_location = cmos_cksum->location; -} -#endif - -#ifdef CONFIG_LP_COREBOOT_VIDEO_CONSOLE -static void cb_parse_framebuffer(void *ptr, struct sysinfo_t *info) -{ - /* ptr points to a coreboot table entry and is already virtual */ - info->framebuffer = ptr; -} -#endif - static void cb_parse_x86_rom_var_mtrr(void *ptr, struct sysinfo_t *info) { struct cb_x86_rom_mtrr *rom_mtrr = ptr; info->x86_rom_var_mtrr_index = rom_mtrr->index; } -static void cb_parse_string(unsigned char *ptr, char **info) +int cb_parse_arch_specific(struct cb_record *rec, struct sysinfo_t *info) { - *info = (char *)((struct cb_string *)ptr)->string; -} - -static int cb_parse_header(void *addr, int len, struct sysinfo_t *info) -{ - struct cb_header *header; - unsigned char *ptr = addr; - void *forward; - int i; - - for (i = 0; i < len; i += 16, ptr += 16) { - header = (struct cb_header *)ptr; - if (!strncmp((const char *)header->signature, "LBIO", 4)) - break; - } - - /* We walked the entire space and didn't find anything. */ - if (i >= len) - return -1; - - if (!header->table_bytes) + switch(rec->tag) { + case CB_TAG_ACPI_GNVS: + cb_parse_acpi_gnvs(rec, info); + break; + case CB_TAG_X86_ROM_MTRR: + cb_parse_x86_rom_var_mtrr(rec, info); + break; + default: return 0; - - /* Make sure the checksums match. */ - if (ipchksum((u16 *) header, sizeof(*header)) != 0) - return -1; - - if (ipchksum((u16 *) (ptr + sizeof(*header)), - header->table_bytes) != header->table_checksum) - return -1; - - info->header = header; - - /* - * Valid board IDs are small numbers, preset this to an invalid value - * for the case when firmware does not supply the board ID. - */ - info->board_id = ~0; - - /* Now, walk the tables. */ - ptr += header->header_bytes; - - for (i = 0; i < header->table_entries; i++) { - struct cb_record *rec = (struct cb_record *)ptr; - - /* We only care about a few tags here (maybe more later). */ - switch (rec->tag) { - case CB_TAG_FORWARD: - forward = phys_to_virt((void *)(unsigned long)((struct cb_forward *)rec)->forward); - return cb_parse_header(forward, len, info); - case CB_TAG_MEMORY: - cb_parse_memory(ptr, info); - break; - case CB_TAG_SERIAL: - cb_parse_serial(ptr, info); - break; - case CB_TAG_VERSION: - cb_parse_string(ptr, &info->cb_version); - break; - case CB_TAG_EXTRA_VERSION: - cb_parse_string(ptr, &info->extra_version); - break; - case CB_TAG_BUILD: - cb_parse_string(ptr, &info->build); - break; - case CB_TAG_COMPILE_TIME: - cb_parse_string(ptr, &info->compile_time); - break; - case CB_TAG_COMPILE_BY: - cb_parse_string(ptr, &info->compile_by); - break; - case CB_TAG_COMPILE_HOST: - cb_parse_string(ptr, &info->compile_host); - break; - case CB_TAG_COMPILE_DOMAIN: - cb_parse_string(ptr, &info->compile_domain); - break; - case CB_TAG_COMPILER: - cb_parse_string(ptr, &info->compiler); - break; - case CB_TAG_LINKER: - cb_parse_string(ptr, &info->linker); - break; - case CB_TAG_ASSEMBLER: - cb_parse_string(ptr, &info->assembler); - break; -#ifdef CONFIG_LP_NVRAM - case CB_TAG_CMOS_OPTION_TABLE: - cb_parse_optiontable(ptr, info); - break; - case CB_TAG_OPTION_CHECKSUM: - cb_parse_checksum(ptr, info); - break; -#endif -#ifdef CONFIG_LP_COREBOOT_VIDEO_CONSOLE - // FIXME we should warn on serial if coreboot set up a - // framebuffer buf the payload does not know about it. - case CB_TAG_FRAMEBUFFER: - cb_parse_framebuffer(ptr, info); - break; -#endif - case CB_TAG_MAINBOARD: - info->mainboard = (struct cb_mainboard *)ptr; - break; -#ifdef CONFIG_LP_CHROMEOS - case CB_TAG_GPIO: - cb_parse_gpios(ptr, info); - break; - case CB_TAG_VDAT: - cb_parse_vdat(ptr, info); - break; - case CB_TAG_VBNV: - cb_parse_vbnv(ptr, info); - break; - case CB_TAG_VBOOT_HANDOFF: - cb_parse_vboot_handoff(ptr, info); - break; -#endif - case CB_TAG_TIMESTAMPS: - cb_parse_tstamp(ptr, info); - break; - case CB_TAG_CBMEM_CONSOLE: - cb_parse_cbmem_cons(ptr, info); - break; - case CB_TAG_MRC_CACHE: - cb_parse_mrc_cache(ptr, info); - break; - case CB_TAG_ACPI_GNVS: - cb_parse_acpi_gnvs(ptr, info); - break; - case CB_TAG_X86_ROM_MTRR: - cb_parse_x86_rom_var_mtrr(ptr, info); - break; - case CB_TAG_BOARD_ID: - cb_parse_board_id(ptr, info); - break; - } - - ptr += rec->size; } - return 1; } -/* == Architecture specific == */ -/* This is the x86 specific stuff. */ - int get_coreboot_info(struct sysinfo_t *info) { int ret; @@ -336,8 +79,8 @@ int get_coreboot_info(struct sysinfo_t *info) ret = cb_parse_header(phys_to_virt(0x00000000), 0x1000, info); - if (ret != 1) + if (ret) ret = cb_parse_header(phys_to_virt(0x000f0000), 0x1000, info); - return (ret == 1) ? 0 : -1; + return ret; } diff --git a/payloads/libpayload/include/sysinfo.h b/payloads/libpayload/include/sysinfo.h index afcf3d8c38..1753f6f1c6 100644 --- a/payloads/libpayload/include/sysinfo.h +++ b/payloads/libpayload/include/sysinfo.h @@ -113,5 +113,19 @@ struct sysinfo_t { extern struct sysinfo_t lib_sysinfo; +/* + * Check if this is an architecture specific coreboot table record and process + * it, if it is. Return 1 if record type was recognized, 0 otherwise. + */ +int cb_parse_arch_specific(struct cb_record *rec, struct sysinfo_t *info); + +/* + * Check if the region in range addr..addr+len contains a 16 byte aligned + * coreboot table. If it does - process the table filling up the sysinfo + * structure with information from the table. Return 0 on success and -1 on + * failure. + */ +int cb_parse_header(void *addr, int len, struct sysinfo_t *info); + #endif diff --git a/payloads/libpayload/libc/Makefile.inc b/payloads/libpayload/libc/Makefile.inc index e2eee15c7c..bd2a6f7595 100644 --- a/payloads/libpayload/libc/Makefile.inc +++ b/payloads/libpayload/libc/Makefile.inc @@ -37,6 +37,7 @@ libc-$(CONFIG_LP_LIBC) += strlcpy.c libc-$(CONFIG_LP_LIBC) += qsort.c libc-$(CONFIG_LP_LIBC) += hexdump.c libc-$(CONFIG_LP_LIBC) += die.c +libc-$(CONFIG_LP_LIBC) += coreboot.c # should be moved to coreboot directory libc-$(CONFIG_LP_LAR) += lar.c diff --git a/payloads/libpayload/libc/coreboot.c b/payloads/libpayload/libc/coreboot.c new file mode 100644 index 0000000000..b51372660f --- /dev/null +++ b/payloads/libpayload/libc/coreboot.c @@ -0,0 +1,319 @@ +/* + * This file is part of the libpayload project. + * + * Copyright (C) 2008 Advanced Micro Devices, Inc. + * Copyright (C) 2009 coresystems GmbH + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#include <libpayload-config.h> +#include <libpayload.h> +#include <coreboot_tables.h> +#include <stdint.h> + +/* + * The code in this file applies to all coreboot architectures. Some coreboot + * table tags are architecture specific, they are handled by their respective + * cb_parse_arch_specific() functions. + */ + +/* === Parsing code === */ +/* This is the generic parsing code. */ + +static void cb_parse_memory(void *ptr, struct sysinfo_t *info) +{ + struct cb_memory *mem = ptr; + int count = MEM_RANGE_COUNT(mem); + int i; + + if (count > SYSINFO_MAX_MEM_RANGES) + count = SYSINFO_MAX_MEM_RANGES; + + info->n_memranges = 0; + + for (i = 0; i < count; i++) { + struct cb_memory_range *range = MEM_RANGE_PTR(mem, i); + +#ifdef CONFIG_LP_MEMMAP_RAM_ONLY + if (range->type != CB_MEM_RAM) + continue; +#endif + + info->memrange[info->n_memranges].base = + cb_unpack64(range->start); + + info->memrange[info->n_memranges].size = + cb_unpack64(range->size); + + info->memrange[info->n_memranges].type = range->type; + + info->n_memranges++; + } +} + +static void cb_parse_serial(void *ptr, struct sysinfo_t *info) +{ + info->serial = ((struct cb_serial *)ptr); +} + +#ifdef CONFIG_LP_CHROMEOS +static void cb_parse_vboot_handoff(unsigned char *ptr, struct sysinfo_t *info) +{ + struct lb_range *vbho = (struct lb_range *)ptr; + + info->vboot_handoff = (void *)(uintptr_t)vbho->range_start; + info->vboot_handoff_size = vbho->range_size; +} + +static void cb_parse_vbnv(unsigned char *ptr, struct sysinfo_t *info) +{ + struct lb_range *vbnv = (struct lb_range *)ptr; + + info->vbnv_start = vbnv->range_start; + info->vbnv_size = vbnv->range_size; +} + +static void cb_parse_gpios(unsigned char *ptr, struct sysinfo_t *info) +{ + int i; + struct cb_gpios *gpios = (struct cb_gpios *)ptr; + + info->num_gpios = (gpios->count < SYSINFO_MAX_GPIOS) ? + (gpios->count) : SYSINFO_MAX_GPIOS; + + for (i = 0; i < info->num_gpios; i++) + info->gpios[i] = gpios->gpios[i]; +} + +static void cb_parse_vdat(unsigned char *ptr, struct sysinfo_t *info) +{ + struct lb_range *vdat = (struct lb_range *) ptr; + + info->vdat_addr = phys_to_virt(vdat->range_start); + info->vdat_size = vdat->range_size; +} +#endif + +static void cb_parse_tstamp(unsigned char *ptr, struct sysinfo_t *info) +{ + struct cb_cbmem_tab *const cbmem = (struct cb_cbmem_tab *)ptr; + info->tstamp_table = phys_to_virt(cbmem->cbmem_tab); +} + +static void cb_parse_cbmem_cons(unsigned char *ptr, struct sysinfo_t *info) +{ + struct cb_cbmem_tab *const cbmem = (struct cb_cbmem_tab *)ptr; + info->cbmem_cons = phys_to_virt(cbmem->cbmem_tab); +} + +static void cb_parse_mrc_cache(unsigned char *ptr, struct sysinfo_t *info) +{ + struct cb_cbmem_tab *const cbmem = (struct cb_cbmem_tab *)ptr; + info->mrc_cache = phys_to_virt(cbmem->cbmem_tab); +} + +static void cb_parse_acpi_gnvs(unsigned char *ptr, struct sysinfo_t *info) +{ + struct cb_cbmem_tab *const cbmem = (struct cb_cbmem_tab *)ptr; + info->acpi_gnvs = phys_to_virt(cbmem->cbmem_tab); +} + +static void cb_parse_board_id(unsigned char *ptr, struct sysinfo_t *info) +{ + struct cb_board_id *const cbbid = (struct cb_board_id *)ptr; + info->board_id = cbbid->board_id; +} + +#ifdef CONFIG_LP_NVRAM +static void cb_parse_optiontable(void *ptr, struct sysinfo_t *info) +{ + /* ptr points to a coreboot table entry and is already virtual */ + info->option_table = ptr; +} + +static void cb_parse_checksum(void *ptr, struct sysinfo_t *info) +{ + struct cb_cmos_checksum *cmos_cksum = ptr; + info->cmos_range_start = cmos_cksum->range_start; + info->cmos_range_end = cmos_cksum->range_end; + info->cmos_checksum_location = cmos_cksum->location; +} +#endif + +#ifdef CONFIG_LP_COREBOOT_VIDEO_CONSOLE +static void cb_parse_framebuffer(void *ptr, struct sysinfo_t *info) +{ + /* ptr points to a coreboot table entry and is already virtual */ + info->framebuffer = ptr; +} +#endif + +static void cb_parse_string(unsigned char *ptr, char **info) +{ + *info = (char *)((struct cb_string *)ptr)->string; +} + +int cb_parse_header(void *addr, int len, struct sysinfo_t *info) +{ + struct cb_header *header; + unsigned char *ptr = addr; + void *forward; + int i; + + for (i = 0; i < len; i += 16, ptr += 16) { + header = (struct cb_header *)ptr; + if (!strncmp((const char *)header->signature, "LBIO", 4)) + break; + } + + /* We walked the entire space and didn't find anything. */ + if (i >= len) + return -1; + + /* Make sure the checksums match. */ + if (ipchksum((u16 *) header, sizeof(*header)) != 0) + return -1; + + if (!header->table_bytes) + return 0; + + if (ipchksum((u16 *) (ptr + sizeof(*header)), + header->table_bytes) != header->table_checksum) + return -1; + + info->header = header; + + /* + * Valid board IDs are small numbers, preset this to an invalid value + * for the case when firmware does not supply the board ID. + */ + info->board_id = ~0; + + /* Now, walk the tables. */ + ptr += header->header_bytes; + + for (i = 0; i < header->table_entries; i++) { + struct cb_record *rec = (struct cb_record *)ptr; + + /* We only care about a few tags here (maybe more later). */ + switch (rec->tag) { + case CB_TAG_FORWARD: + forward = phys_to_virt((void *)(unsigned long) + ((struct cb_forward *)rec)->forward); + return cb_parse_header(forward, len, info); + continue; + case CB_TAG_MEMORY: + cb_parse_memory(ptr, info); + break; + case CB_TAG_SERIAL: + cb_parse_serial(ptr, info); + break; + case CB_TAG_VERSION: + cb_parse_string(ptr, &info->cb_version); + break; + case CB_TAG_EXTRA_VERSION: + cb_parse_string(ptr, &info->extra_version); + break; + case CB_TAG_BUILD: + cb_parse_string(ptr, &info->build); + break; + case CB_TAG_COMPILE_TIME: + cb_parse_string(ptr, &info->compile_time); + break; + case CB_TAG_COMPILE_BY: + cb_parse_string(ptr, &info->compile_by); + break; + case CB_TAG_COMPILE_HOST: + cb_parse_string(ptr, &info->compile_host); + break; + case CB_TAG_COMPILE_DOMAIN: + cb_parse_string(ptr, &info->compile_domain); + break; + case CB_TAG_COMPILER: + cb_parse_string(ptr, &info->compiler); + break; + case CB_TAG_LINKER: + cb_parse_string(ptr, &info->linker); + break; + case CB_TAG_ASSEMBLER: + cb_parse_string(ptr, &info->assembler); + break; +#ifdef CONFIG_LP_NVRAM + case CB_TAG_CMOS_OPTION_TABLE: + cb_parse_optiontable(ptr, info); + break; + case CB_TAG_OPTION_CHECKSUM: + cb_parse_checksum(ptr, info); + break; +#endif +#ifdef CONFIG_LP_COREBOOT_VIDEO_CONSOLE + // FIXME we should warn on serial if coreboot set up a + // framebuffer buf the payload does not know about it. + case CB_TAG_FRAMEBUFFER: + cb_parse_framebuffer(ptr, info); + break; +#endif + case CB_TAG_MAINBOARD: + info->mainboard = (struct cb_mainboard *)ptr; + break; +#ifdef CONFIG_LP_CHROMEOS + case CB_TAG_GPIO: + cb_parse_gpios(ptr, info); + break; + case CB_TAG_VDAT: + cb_parse_vdat(ptr, info); + break; + case CB_TAG_VBNV: + cb_parse_vbnv(ptr, info); + break; + case CB_TAG_VBOOT_HANDOFF: + cb_parse_vboot_handoff(ptr, info); + break; +#endif + case CB_TAG_TIMESTAMPS: + cb_parse_tstamp(ptr, info); + break; + case CB_TAG_CBMEM_CONSOLE: + cb_parse_cbmem_cons(ptr, info); + break; + case CB_TAG_MRC_CACHE: + cb_parse_mrc_cache(ptr, info); + break; + case CB_TAG_ACPI_GNVS: + cb_parse_acpi_gnvs(ptr, info); + break; + case CB_TAG_BOARD_ID: + cb_parse_board_id(ptr, info); + break; + default: + cb_parse_arch_specific(rec, info); + break; + } + + ptr += rec->size; + } + + return 0; +} |