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-rw-r--r--payloads/libpayload/arch/arm/coreboot.c276
-rw-r--r--payloads/libpayload/arch/arm64/coreboot.c276
-rw-r--r--payloads/libpayload/arch/x86/coreboot.c281
-rw-r--r--payloads/libpayload/include/sysinfo.h14
-rw-r--r--payloads/libpayload/libc/Makefile.inc1
-rw-r--r--payloads/libpayload/libc/coreboot.c319
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;
+}