From b93566f1bb54e02a1ff1e3b4782073be1886744e Mon Sep 17 00:00:00 2001 From: Rijo Thomas Date: Wed, 4 Dec 2019 11:48:59 +0530 Subject: crypto: ccp - create a generic psp-dev file The PSP (Platform Security Processor) provides support for key management commands in Secure Encrypted Virtualization (SEV) mode, along with software-based Trusted Execution Environment (TEE) to enable third-party Trusted Applications. Therefore, introduce psp-dev.c and psp-dev.h files, which can invoke SEV (or TEE) initialization based on platform feature support. TEE interface support will be introduced in a later patch. Cc: Ard Biesheuvel Cc: Tom Lendacky Cc: Jens Wiklander Co-developed-by: Devaraj Rangasamy Signed-off-by: Devaraj Rangasamy Signed-off-by: Rijo Thomas Acked-by: Gary R Hook Signed-off-by: Herbert Xu --- drivers/crypto/ccp/sev-dev.h | 36 +++++++++++++++--------------------- 1 file changed, 15 insertions(+), 21 deletions(-) (limited to 'drivers/crypto/ccp/sev-dev.h') diff --git a/drivers/crypto/ccp/sev-dev.h b/drivers/crypto/ccp/sev-dev.h index e86164785daf..3d84ac380bdc 100644 --- a/drivers/crypto/ccp/sev-dev.h +++ b/drivers/crypto/ccp/sev-dev.h @@ -25,37 +25,25 @@ #include #include -#include "sp-dev.h" - -#define PSP_CMD_COMPLETE BIT(1) - -#define PSP_CMDRESP_CMD_SHIFT 16 -#define PSP_CMDRESP_IOC BIT(0) -#define PSP_CMDRESP_RESP BIT(31) -#define PSP_CMDRESP_ERR_MASK 0xffff - -#define MAX_PSP_NAME_LEN 16 +#define SEV_CMD_COMPLETE BIT(1) +#define SEV_CMDRESP_CMD_SHIFT 16 +#define SEV_CMDRESP_IOC BIT(0) struct sev_misc_dev { struct kref refcount; struct miscdevice misc; }; -struct psp_device { - struct list_head entry; - - struct psp_vdata *vdata; - char name[MAX_PSP_NAME_LEN]; - +struct sev_device { struct device *dev; - struct sp_device *sp; + struct psp_device *psp; void __iomem *io_regs; - int sev_state; - unsigned int sev_int_rcvd; - wait_queue_head_t sev_int_queue; - struct sev_misc_dev *sev_misc; + int state; + unsigned int int_rcvd; + wait_queue_head_t int_queue; + struct sev_misc_dev *misc; struct sev_user_data_status status_cmd_buf; struct sev_data_init init_cmd_buf; @@ -64,4 +52,10 @@ struct psp_device { u8 build; }; +int sev_dev_init(struct psp_device *psp); +void sev_dev_destroy(struct psp_device *psp); + +void sev_pci_init(void); +void sev_pci_exit(void); + #endif /* __SEV_DEV_H */ -- cgit v1.2.3