diff options
Diffstat (limited to 'src/soc/intel/apollolake/memmap.c')
| -rw-r--r-- | src/soc/intel/apollolake/memmap.c | 21 |
1 files changed, 20 insertions, 1 deletions
diff --git a/src/soc/intel/apollolake/memmap.c b/src/soc/intel/apollolake/memmap.c index f9a484a7c4..6d68501162 100644 --- a/src/soc/intel/apollolake/memmap.c +++ b/src/soc/intel/apollolake/memmap.c @@ -26,6 +26,7 @@ #include <arch/io.h> #include <assert.h> #include <cbmem.h> +#include "chip.h" #include <device/pci.h> #include <fsp/memmap.h> #include <intelblocks/smm.h> @@ -34,7 +35,25 @@ void *cbmem_top(void) { - return (void *)sa_get_tseg_base(); + const struct device *dev; + const config_t *config; + void *tolum = (void *)sa_get_tseg_base(); + + if (!IS_ENABLED(CONFIG_SOC_INTEL_GLK)) + return tolum; + + dev = dev_find_slot(0, PCH_DEVFN_LPC); + assert(dev != NULL); + config = dev->chip_info; + + if (!config) + die("Failed to get chip_info\n"); + + /* FSP allocates 2x PRMRR Size Memory for alignment */ + if (config->sgx_enable) + tolum -= config->PrmrrSize * 2; + + return tolum; } int smm_subregion(int sub, void **start, size_t *size) |