diff options
Diffstat (limited to 'payloads/libpayload/libc')
| -rw-r--r-- | payloads/libpayload/libc/coreboot.c | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/payloads/libpayload/libc/coreboot.c b/payloads/libpayload/libc/coreboot.c index 3e248e19c3..3abd610be2 100644 --- a/payloads/libpayload/libc/coreboot.c +++ b/payloads/libpayload/libc/coreboot.c @@ -231,6 +231,19 @@ static void cb_parse_boot_media_params(unsigned char *ptr, info->boot_media_size = bmp->boot_media_size; } +#if IS_ENABLED(CONFIG_LP_TIMER_RDTSC) +static void cb_parse_tsc_info(void *ptr, struct sysinfo_t *info) +{ + const struct cb_tsc_info *tsc_info = ptr; + + if (tsc_info->freq_khz == 0) + return; + + /* Honor the TSC frequency passed to the payload. */ + info->cpu_khz = tsc_info->freq_khz; +} +#endif + int cb_parse_header(void *addr, int len, struct sysinfo_t *info) { struct cb_header *header; @@ -386,6 +399,11 @@ int cb_parse_header(void *addr, int len, struct sysinfo_t *info) case CB_TAG_BOOT_MEDIA_PARAMS: cb_parse_boot_media_params(ptr, info); break; +#if IS_ENABLED(CONFIG_LP_TIMER_RDTSC) + case CB_TAG_TSC_INFO: + cb_parse_tsc_info(ptr, info); + break; +#endif default: cb_parse_arch_specific(rec, info); break; |