diff options
Diffstat (limited to 'src/soc/intel/icelake/include/soc/smm.h')
| -rw-r--r-- | src/soc/intel/icelake/include/soc/smm.h | 70 |
1 files changed, 70 insertions, 0 deletions
diff --git a/src/soc/intel/icelake/include/soc/smm.h b/src/soc/intel/icelake/include/soc/smm.h new file mode 100644 index 0000000000..a9cd748b0c --- /dev/null +++ b/src/soc/intel/icelake/include/soc/smm.h @@ -0,0 +1,70 @@ +/* + * This file is part of the coreboot project. + * + * Copyright (C) 2018 Intel Corp. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; version 2 of the License. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + */ + +#ifndef _SOC_SMM_H_ +#define _SOC_SMM_H_ + +#include <stdint.h> +#include <cpu/x86/msr.h> +#include <fsp/memmap.h> +#include <soc/gpio.h> + +struct ied_header { + char signature[10]; + u32 size; + u8 reserved[34]; +} __packed; + +struct smm_relocation_params { + u32 smram_base; + u32 smram_size; + u32 ied_base; + u32 ied_size; + msr_t smrr_base; + msr_t smrr_mask; + msr_t emrr_base; + msr_t emrr_mask; + msr_t uncore_emrr_base; + msr_t uncore_emrr_mask; + /* + * The smm_save_state_in_msrs field indicates if SMM save state + * locations live in MSRs. This indicates to the CPUs how to adjust + * the SMMBASE and IEDBASE + */ + int smm_save_state_in_msrs; +}; + +/* Mainboard handler for eSPI SMIs */ +void mainboard_smi_espi_handler(void); + +#if IS_ENABLED(CONFIG_HAVE_SMI_HANDLER) +void smm_relocation_handler(int cpu, uintptr_t curr_smbase, + uintptr_t staggered_smbase); +void smm_info(uintptr_t *perm_smbase, size_t *perm_smsize, + size_t *smm_save_state_size); +void smm_initialize(void); +void smm_relocate(void); + +#else /* CONFIG_HAVE_SMI_HANDLER */ +static inline void smm_relocation_handler(int cpu, uintptr_t curr_smbase, + uintptr_t staggered_smbase) {} +static inline void smm_info(uintptr_t *perm_smbase, size_t *perm_smsize, + size_t *smm_save_state_size) {} +static inline void smm_initialize(void) {} + +static inline void smm_relocate(void) {} +#endif /* CONFIG_HAVE_SMI_HANDLER */ + +#endif |