/* SPDX-License-Identifier: GPL-2.0-only */ #ifndef _TPM_PPI_H_ #define _TPM_PPI_H_ #include <device/device.h> #include <boot/coreboot_tables.h> #if CONFIG(HAVE_ACPI_TABLES) void tpm_ppi_acpi_fill_ssdt(const struct device *dev); #else static inline void tpm_ppi_acpi_fill_ssdt(const struct device *dev) { } #endif /* Return codes */ /* Function 2 */ #define PPI2_RET_SUCCESS 0 #define PPI2_RET_NOT_SUPPORTED 1 #define PPI2_RET_GENERAL_FAILURE 2 /* Function 3 */ #define PPI3_RET_SUCCESS 0 #define PPI3_RET_GENERAL_FAILURE 1 /* Function 4 */ #define PPI4_RET_NONE 0 #define PPI4_RET_SHUTDOWN 1 #define PPI4_RET_REBOOT 2 #define PPI4_RET_OS_VENDOR_SPECIFIC 3 /* Function 5 */ #define PPI5_RET_SUCCESS 0 #define PPI5_RET_GENERAL_FAILURE 1 /* Function 6 */ #define PPI6_RET_NOT_IMPLEMENTED 3 /* Function 7 */ #define PPI7_RET_SUCCESS 0 #define PPI7_RET_NOT_IMPLEMENTED 1 #define PPI7_RET_GENERAL_FAILURE 2 #define PPI7_RET_BLOCKED_BY_FIRMWARE 3 /* Function 8 */ #define PPI8_RET_NOT_IMPLEMENTED 0 #define PPI8_RET_FIRMWARE_ONLY 1 #define PPI8_RET_BLOCKED_FOR_OS_BY_FW 2 #define PPI8_RET_ALLOWED_WITH_PP 3 #define PPI8_RET_ALLOWED 4 /* TCG Physical Presence Interface */ #define TPM_PPI_UUID "3dddfaa6-361b-4eb4-a424-8d10089d1653" /* TCG Memory Clear Interface */ #define TPM_MCI_UUID "376054ed-cc13-4675-901c-4756d7f2d45d" /* * Physical Presence Interface Specification Version 1.30 Revision 00.52 * Table 1 Physical Presence Interface Operation Summary for TPM 1.2 */ #define TPM_NOOP 0 #define TPM_ENABLE 1 #define TPM_DISABLE 2 #define TPM_ACTIVATE 3 #define TPM_DEACTIVATE 4 #define TPM_CLEAR 5 #define TPM_ENABLE_ACTIVATE 6 #define TPM_DEACTIVATE_DISABLE 7 #define TPM_SETOWNERINSTALL_TRUE 8 #define TPM_SETOWNERINSTALL_FALSE 9 #define TPM_ENABLE_ACTIVATE_SETOWNERINSTALL_TRUE 10 #define TPM_SETOWNERINSTALL_FALSE_DEACTIVATE_DISABLE 11 #define TPM_CLEAR_ENABLE_ACTIVATE 14 #define TPM_SET_NOPPIPROVISION_FALSE 15 #define TPM_SET_NOPPIPROVISION_TRUE 16 #define TPM_SET_NOPPICLEAR_FALSE 17 #define TPM_SET_NOPPICLEAR_TRUE 18 #define TPM_SET_NOPPIMAINTAINANCE_FALSE 19 #define TPM_SET_NOPPIMAINTAINANCE_TRUE 20 #define TPM_ENABLE_ACTIVE_CLEAR 21 #define TPM_ENABLE_ACTIVE_CLEAR_ENABLE_ACTIVE 22 /* * Physical Presence Interface Specification Version 1.30 Revision 00.52 * Table 2 Physical Presence Interface Operation Summary for TPM 2.0 */ #define TPM2_NOOP 0 #define TPM2_ENABLE 1 #define TPM2_DISABLE 2 #define TPM2_CLEAR 5 #define TPM2_CLEAR_ENABLE_ACTIVE 14 #define TPM2_SET_PP_REQUIRED_FOR_CLEAR_TRUE 17 #define TPM2_SET_PP_REQUIRED_FOR_CLEAR_FALSE 18 #define TPM2_ENABLE_CLEAR 21 #define TPM2_ENABLE_CLEAR2 22 #define TPM2_SET_PCR_BANKS 23 #define TPM2_CHANGE_EPS 24 #define TPM2_SET_PP_REQUIRED_FOR_CHANGE_PCRS_FALSE 25 #define TPM2_SET_PP_REQUIRED_FOR_CHANGE_PCRS_TRUE 26 #define TPM2_SET_PP_REQUIRED_FOR_TURN_ON_FALSE 27 #define TPM2_SET_PP_REQUIRED_FOR_TURN_ON_TRUE 28 #define TPM2_SET_PP_REQUIRED_FOR_TURN_OFF_FALSE 29 #define TPM2_SET_PP_REQUIRED_FOR_TURN_OFF_TRUE 30 #define TPM2_SET_PP_REQUIRED_FOR_CHANGE_EPS_FALSE 31 #define TPM2_SET_PP_REQUIRED_FOR_CHANGE_EPS_TRUE 32 #define TPM2_LOG_ALL_DIGEST 33 #define TPM2_DISABLE_ENDORSMENT_ENABLE_STORAGE_HISTORY 34 #define TPM2_ENABLE_BLOCK_SID 96 #define TPM2_DISABLE_BLOCK_SID 97 #define TPM2_SET_PP_REQUIRED_FOR_ENABLE_BLOCK_SID_TRUE 98 #define TPM2_SET_PP_REQUIRED_FOR_ENABLE_BLOCK_SID_FALSE 99 #define TPM2_SET_PP_REQUIRED_FOR_DISABLE_BLOCK_SID_TRUE 100 #define TPM2_SET_PP_REQUIRED_FOR_DISABLE_BLOCK_SID_FALSE 101 #define VENDOR_SPECIFIC_OFFSET 0x80 /* * The layout of the buffer matches the QEMU virtual memory device that is generated * by QEMU. See files 'hw/i386/acpi-build.c' and 'include/hw/acpi/tpm.h' for details. */ struct cb_tpm_ppi_payload_handshake { uint8_t func[256]; /* Firmware sets values for each supported operation. * See defined values below. */ uint8_t ppin; /* SMI interrupt to use. Set by firmware. * Not supported. */ uint32_t ppip; /* ACPI function index to pass to SMM code. * Set by ACPI. Not supported. */ uint32_t pprp; /* Result of last executed operation. * Set by firmware. See function index 5 for values. */ uint32_t pprq; /* Operation request number to execute. * See 'Physical Presence Interface Operation Summary' * tables in specs. Set by ACPI. */ uint32_t pprm; /* Operation request optional parameter. * Values depend on operation. Set by ACPI. */ uint32_t lppr; /* Last executed operation request number. * Copied from pprq field by firmware. */ uint32_t fret; /* Result code from SMM function. Not supported. */ uint8_t res1[0x040]; /* Reserved */ uint8_t next_step; /* Operation to execute after reboot by firmware. * Used by firmware. */ } __packed; void lb_tpm_ppi(struct lb_header *header); #endif /* _TPM_PPI_H_ */