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libpayload: Parse CBMEM ACPI GNVS pointer 

Pull the ACPI GNVS pointer from CBMEM and expose it in
the sysinfo structure for use by payloads.

BUG=chrome-os-partner:24380
BRANCH=none
TEST=build and boot rambi with emmc in ACPI mode

Change-Id: I47c358f33c464a4a01080268fb553705218c940c
Signed-off-by: Duncan Laurie <dlaurie@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/179900
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Signed-off-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-on: http://review.coreboot.org/5016
Tested-by: build bot (Jenkins)
Reviewed-by: Alexandru Gagniuc <mr.nuke.me@gmail.com>
This commit is contained in:
Duncan Laurie 2013-12-12 10:43:58 -08:00 committed by Aaron Durbin
parent 2f6402c7a6
commit f517c448a5
3 changed files with 11 additions and 0 deletions
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9
payloads/libpayload/arch/x86/coreboot.c
View File

@ -135,6 +135,12 @@ static void cb_parse_mrc_cache(unsigned char *ptr, struct sysinfo_t *info)
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);
}
#ifdef CONFIG_NVRAM
static void cb_parse_optiontable(void *ptr, struct sysinfo_t *info)
{
@ -288,6 +294,9 @@ static int cb_parse_header(void *addr, int len, struct sysinfo_t *info)
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;

1
payloads/libpayload/include/coreboot_tables.h
View File

@ -195,6 +195,7 @@ struct cb_vdat {
#define CB_TAG_TIMESTAMPS 0x0016
#define CB_TAG_CBMEM_CONSOLE 0x0017
#define CB_TAG_MRC_CACHE 0x0018
#define CB_TAG_ACPI_GNVS 0x0024
struct cb_cbmem_tab {
uint32_t tag;
uint32_t size;

1
payloads/libpayload/include/sysinfo.h
View File

@ -107,6 +107,7 @@ struct sysinfo_t {
void *tstamp_table;
void *cbmem_cons;
void *mrc_cache;
void *acpi_gnvs;
};
extern struct sysinfo_t lib_sysinfo;