diff options
Diffstat (limited to 'drivers/crypto/ccp/psp-dev.h')
| -rw-r--r-- | drivers/crypto/ccp/psp-dev.h | 55 |
1 files changed, 55 insertions, 0 deletions
diff --git a/drivers/crypto/ccp/psp-dev.h b/drivers/crypto/ccp/psp-dev.h index 8a4de69399c5..ae582ba63729 100644 --- a/drivers/crypto/ccp/psp-dev.h +++ b/drivers/crypto/ccp/psp-dev.h @@ -14,6 +14,9 @@ #include <linux/list.h> #include <linux/bits.h> #include <linux/interrupt.h> +#include <linux/mutex.h> +#include <linux/psp.h> +#include <linux/psp-platform-access.h> #include "sp-dev.h" @@ -33,6 +36,7 @@ struct psp_device { struct sp_device *sp; void __iomem *io_regs; + struct mutex mailbox_mutex; psp_irq_handler_t sev_irq_handler; void *sev_irq_data; @@ -53,6 +57,7 @@ struct psp_device *psp_get_master_device(void); #define PSP_CAPABILITY_SEV BIT(0) #define PSP_CAPABILITY_TEE BIT(1) +#define PSP_CAPABILITY_DBC_THRU_EXT BIT(2) #define PSP_CAPABILITY_PSP_SECURITY_REPORTING BIT(7) #define PSP_CAPABILITY_PSP_SECURITY_OFFSET 8 @@ -71,4 +76,54 @@ struct psp_device *psp_get_master_device(void); #define PSP_SECURITY_HSP_TPM_AVAILABLE BIT(10) #define PSP_SECURITY_ROM_ARMOR_ENFORCED BIT(11) +/** + * enum psp_cmd - PSP mailbox commands + * @PSP_CMD_TEE_RING_INIT: Initialize TEE ring buffer + * @PSP_CMD_TEE_RING_DESTROY: Destroy TEE ring buffer + * @PSP_CMD_TEE_EXTENDED_CMD: Extended command + * @PSP_CMD_MAX: Maximum command id + */ +enum psp_cmd { + PSP_CMD_TEE_RING_INIT = 1, + PSP_CMD_TEE_RING_DESTROY = 2, + PSP_CMD_TEE_EXTENDED_CMD = 14, + PSP_CMD_MAX = 15, +}; + +int psp_mailbox_command(struct psp_device *psp, enum psp_cmd cmd, void *cmdbuff, + unsigned int timeout_msecs, unsigned int *cmdresp); + +/** + * struct psp_ext_req_buffer_hdr - Structure of the extended command header + * @payload_size: total payload size + * @sub_cmd_id: extended command ID + * @status: status of command execution (out) + */ +struct psp_ext_req_buffer_hdr { + u32 payload_size; + u32 sub_cmd_id; + u32 status; +} __packed; + +struct psp_ext_request { + struct psp_ext_req_buffer_hdr header; + void *buf; +} __packed; + +/** + * enum psp_sub_cmd - PSP mailbox sub commands + * @PSP_SUB_CMD_DBC_GET_NONCE: Get nonce from DBC + * @PSP_SUB_CMD_DBC_SET_UID: Set UID for DBC + * @PSP_SUB_CMD_DBC_GET_PARAMETER: Get parameter from DBC + * @PSP_SUB_CMD_DBC_SET_PARAMETER: Set parameter for DBC + */ +enum psp_sub_cmd { + PSP_SUB_CMD_DBC_GET_NONCE = PSP_DYNAMIC_BOOST_GET_NONCE, + PSP_SUB_CMD_DBC_SET_UID = PSP_DYNAMIC_BOOST_SET_UID, + PSP_SUB_CMD_DBC_GET_PARAMETER = PSP_DYNAMIC_BOOST_GET_PARAMETER, + PSP_SUB_CMD_DBC_SET_PARAMETER = PSP_DYNAMIC_BOOST_SET_PARAMETER, +}; + +int psp_extended_mailbox_cmd(struct psp_device *psp, unsigned int timeout_msecs, + struct psp_ext_request *req); #endif /* __PSP_DEV_H */ |