diff options
| -rw-r--r-- | payloads/libpayload/include/coreboot_tables.h | 12 | ||||
| -rw-r--r-- | payloads/libpayload/include/sysinfo.h | 5 | ||||
| -rw-r--r-- | payloads/libpayload/libc/coreboot.c | 17 |
3 files changed, 34 insertions, 0 deletions
diff --git a/payloads/libpayload/include/coreboot_tables.h b/payloads/libpayload/include/coreboot_tables.h index 53b5890997..13a99787f7 100644 --- a/payloads/libpayload/include/coreboot_tables.h +++ b/payloads/libpayload/include/coreboot_tables.h @@ -224,6 +224,18 @@ struct cb_x86_rom_mtrr { uint32_t index; }; +#define CB_TAG_MAC_ADDRS 0x0026 +struct mac_address { + uint8_t mac_addr[6]; + uint8_t pad[2]; /* Pad it to 8 bytes to keep it simple. */ +}; + +struct cb_macs { + uint32_t tag; + uint32_t size; + uint32_t count; + struct mac_address mac_addrs[0]; +}; #define CB_TAG_CMOS_OPTION_TABLE 0x00c8 struct cb_cmos_option_table { diff --git a/payloads/libpayload/include/sysinfo.h b/payloads/libpayload/include/sysinfo.h index 1753f6f1c6..1c49f9dce2 100644 --- a/payloads/libpayload/include/sysinfo.h +++ b/payloads/libpayload/include/sysinfo.h @@ -35,6 +35,9 @@ /* Allow a maximum of 8 GPIOs */ #define SYSINFO_MAX_GPIOS 8 +/* Up to 10 MAC addresses */ +#define SYSINFO_MAX_MACS 10 + #include <coreboot_tables.h> struct cb_serial; @@ -86,6 +89,8 @@ struct sysinfo_t { #ifdef CONFIG_LP_CHROMEOS int num_gpios; struct cb_gpio gpios[SYSINFO_MAX_GPIOS]; + int num_macs; + struct mac_address macs[SYSINFO_MAX_MACS]; #endif unsigned long *mbtable; /** Pointer to the multiboot table */ diff --git a/payloads/libpayload/libc/coreboot.c b/payloads/libpayload/libc/coreboot.c index b51372660f..8ed0307650 100644 --- a/payloads/libpayload/libc/coreboot.c +++ b/payloads/libpayload/libc/coreboot.c @@ -114,6 +114,20 @@ static void cb_parse_vdat(unsigned char *ptr, struct sysinfo_t *info) info->vdat_addr = phys_to_virt(vdat->range_start); info->vdat_size = vdat->range_size; } + +static void cb_parse_mac_addresses(unsigned char *ptr, + struct sysinfo_t *info) +{ + struct cb_macs *macs = (struct cb_macs *)ptr; + int i; + + info->num_macs = (macs->count < ARRAY_SIZE(info->macs)) ? + macs->count : ARRAY_SIZE(info->macs); + + for (i = 0; i < info->num_macs; i++) + info->macs[i] = macs->mac_addrs[i]; +} + #endif static void cb_parse_tstamp(unsigned char *ptr, struct sysinfo_t *info) @@ -291,6 +305,9 @@ int cb_parse_header(void *addr, int len, struct sysinfo_t *info) case CB_TAG_VBOOT_HANDOFF: cb_parse_vboot_handoff(ptr, info); break; + case CB_TAG_MAC_ADDRS: + cb_parse_mac_addresses(ptr, info); + break; #endif case CB_TAG_TIMESTAMPS: cb_parse_tstamp(ptr, info); |