diff options
| -rw-r--r-- | src/soc/intel/xeon_sp/lockdown.c | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/src/soc/intel/xeon_sp/lockdown.c b/src/soc/intel/xeon_sp/lockdown.c index 49f3f5a0ee..7dc1f9834f 100644 --- a/src/soc/intel/xeon_sp/lockdown.c +++ b/src/soc/intel/xeon_sp/lockdown.c @@ -3,11 +3,25 @@ #include <device/mmio.h> #include <device/pci.h> #include <intelblocks/cfg.h> +#include <intelblocks/lpc_lib.h> #include <intelblocks/pmclib.h> #include <intelpch/lockdown.h> #include <soc/pci_devs.h> #include <soc/pm.h> +static void lpc_lockdown_config(void) +{ + /* Set BIOS Interface Lock, BIOS Lock */ + lpc_set_bios_interface_lock_down(); + + /* Only allow writes in SMM */ + if (CONFIG(BOOTMEDIA_SMM_BWP)) { + lpc_set_eiss(); + lpc_enable_wp(); + } + lpc_set_lock_enable(); +} + static void pmc_lockdown_config(int chipset_lockdown) { uint8_t *pmcbase; @@ -36,6 +50,7 @@ static void sata_lockdown_config(int chipset_lockdown) void soc_lockdown_config(int chipset_lockdown) { + lpc_lockdown_config(); pmc_lockdown_config(chipset_lockdown); sata_lockdown_config(chipset_lockdown); } |