diff options
| author | Pratik Prajapati <pratikkumar.v.prajapati@intel.com> | 2017-08-29 14:11:16 -0700 |
|---|---|---|
| committer | Subrata Banik <subrata.banik@intel.com> | 2017-09-27 06:46:18 +0000 |
| commit | 4bc6edf90956a9971aedb187e570d5c0f58d70cd (patch) | |
| tree | b31c6ef793914d1d42f69a8ddcd7cd9d33c42496 /src/soc/intel/apollolake/memmap.c | |
| parent | fcf88205050aed4f26b1afc74f3fa5c39a0de2d8 (diff) | |
soc/intel/apollolake: Add PrmrrSize and SGX enable config
Add PrmrrSize and sgx_enable config option. PrmrrSize gets
configured in romstage so that FSP can allocate memory for SGX.
Also, adjust cbmem_top() calculation.
Change-Id: I56165ca201163a8b8b522e9aeb47bd1f4267be5e
Signed-off-by: Pratik Prajapati <pratikkumar.v.prajapati@intel.com>
Reviewed-on: https://review.coreboot.org/21274
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-by: Subrata Banik <subrata.banik@intel.com>
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) |