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| author | Furquan Shaikh <furquan@google.com> | 2019-09-27 00:02:25 -0700 |
|---|---|---|
| committer | Patrick Georgi <pgeorgi@google.com> | 2019-10-02 11:26:53 +0000 |
| commit | 3d4923d85ab07f8ea2b30018763c6bef269e5796 (patch) | |
| tree | ed919f5c64bfa6abf2059f31ea320e195d230051 /payloads | |
| parent | 86cb421df68f8c22b3cc27fb9ef45a6633724bb6 (diff) | |
| download | coreboot-3d4923d85ab07f8ea2b30018763c6bef269e5796.tar.xz | |
libpayload: Add fmap_cache to sysinfo_t
Now that FMAP is cached in CBMEM and its pointer is added to coreboot
table for quick lookup, this change adds a new member "fmap_cache" to
sysinfo_t that can be used by payloads to get to FMAP cache.
BUG=b:141723751
Change-Id: If894c20c2de89a9d8564561bc7780c86f3f4135a
Signed-off-by: Furquan Shaikh <furquan@google.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/35640
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Shelley Chen <shchen@google.com>
Reviewed-by: Patrick Rudolph <siro@das-labor.org>
Reviewed-by: Arthur Heymans <arthur@aheymans.xyz>
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Diffstat (limited to 'payloads')
| -rw-r--r-- | payloads/libpayload/include/coreboot_tables.h | 1 | ||||
| -rw-r--r-- | payloads/libpayload/include/sysinfo.h | 3 | ||||
| -rw-r--r-- | payloads/libpayload/libc/coreboot.c | 9 |
3 files changed, 13 insertions, 0 deletions
diff --git a/payloads/libpayload/include/coreboot_tables.h b/payloads/libpayload/include/coreboot_tables.h index bf2cf022d1..c24d6acfd6 100644 --- a/payloads/libpayload/include/coreboot_tables.h +++ b/payloads/libpayload/include/coreboot_tables.h @@ -78,6 +78,7 @@ enum { CB_TAG_VBOOT_WORKBUF = 0x0034, CB_TAG_MMC_INFO = 0x0035, CB_TAG_TCPA_LOG = 0x0036, + CB_TAG_FMAP = 0x0037, CB_TAG_CMOS_OPTION_TABLE = 0x00c8, CB_TAG_OPTION = 0x00c9, CB_TAG_OPTION_ENUM = 0x00ca, diff --git a/payloads/libpayload/include/sysinfo.h b/payloads/libpayload/include/sysinfo.h index 50f0e3962c..c05be7c159 100644 --- a/payloads/libpayload/include/sysinfo.h +++ b/payloads/libpayload/include/sysinfo.h @@ -128,6 +128,9 @@ struct sysinfo_t { uint32_t mtc_size; void *chromeos_vpd; int mmc_early_wake_status; + + /* Pointer to FMAP cache in CBMEM */ + void *fmap_cache; }; extern struct sysinfo_t lib_sysinfo; diff --git a/payloads/libpayload/libc/coreboot.c b/payloads/libpayload/libc/coreboot.c index 03778b6d2a..e14b144ee4 100644 --- a/payloads/libpayload/libc/coreboot.c +++ b/payloads/libpayload/libc/coreboot.c @@ -239,6 +239,12 @@ static void cb_parse_vpd(void *ptr, struct sysinfo_t *info) info->chromeos_vpd = phys_to_virt(cbmem->cbmem_tab); } +static void cb_parse_fmap_cache(void *ptr, struct sysinfo_t *info) +{ + struct cb_cbmem_tab *const cbmem = (struct cb_cbmem_tab *)ptr; + info->fmap_cache = phys_to_virt(cbmem->cbmem_tab); +} + #if CONFIG(LP_TIMER_RDTSC) static void cb_parse_tsc_info(void *ptr, struct sysinfo_t *info) { @@ -412,6 +418,9 @@ int cb_parse_header(void *addr, int len, struct sysinfo_t *info) case CB_TAG_VPD: cb_parse_vpd(ptr, info); break; + case CB_TAG_FMAP: + cb_parse_fmap_cache(ptr, info); + break; default: cb_parse_arch_specific(rec, info); break; |