platform/msm_shared/include/scm.h - kernel/lk - Gitiles

 /* Copyright (c) 2011-2013, The Linux Foundation. All rights reserved.

  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
  * met:
  *   * Redistributions of source code must retain the above copyright
  *     notice, this list of conditions and the following disclaimer.
  *   * Redistributions in binary form must reproduce the above
  *     copyright notice, this list of conditions and the following
  *     disclaimer in the documentation and/or other materials provided
  *     with the distribution.
  *   * Neither the name of The Linux Foundation nor the names of its
  *     contributors may be used to endorse or promote products derived
  *     from this software without specific prior written permission.
  *
  * THIS SOFTWARE IS PROVIDED "AS IS" AND ANY EXPRESS OR IMPLIED
  * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT
  * ARE DISCLAIMED.  IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS
  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
  * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
  * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
  * OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN
  * IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */

 #ifndef __SCM_H__
 #define __SCM_H__

 /* 8 Byte SSD magic number (LE) */
 #define DECRYPT_MAGIC_0 0x73737A74
 #define DECRYPT_MAGIC_1 0x676D6964
 #define ENCRYPT_MAGIC_0 0x6B647373
 #define ENCRYPT_MAGIC_1 0x676D6973
 #define SSD_HEADER_MAGIC_SIZE  8
 #define SSD_HEADER_XML_SIZE    2048
 #define SSD_HEADER_MIN_SIZE    128
 #define MULTIPLICATION_FACTOR  2

 typedef unsigned int uint32;

 typedef struct {
 	uint32 len;
 	uint32 buf_offset;
 	uint32 resp_hdr_offset;
 	uint32 id;
 } scm_command;

 typedef struct {
 	uint32 len;
 	uint32 buf_offset;
 	uint32 is_complete;
 } scm_response;

 typedef struct {
 	uint32 *img_ptr;
 	uint32 *img_len_ptr;
 } img_req;

 typedef struct {
 	uint32 id;
 	uint32 spare;
 } tz_secure_cfg;

 typedef struct {
   uint32  md_len;
   uint32* md;
 } ssd_parse_md_req;

 typedef struct {
   uint32  status;
   uint32  md_ctx_id;
   uint32* md_end_ptr;
 } ssd_parse_md_rsp;

 typedef struct {
   uint32  md_ctx_id;
   uint32  last_frag;
   uint32  frag_len;
   uint32 *frag;
 } ssd_decrypt_img_frag_req;

 typedef struct {
   uint32 status;
 } ssd_decrypt_img_frag_rsp;

 typedef struct{
   uint32 feature_id;
 } feature_version_req;

 typedef struct{
   uint32 version;
 } feature_version_rsp;

 typedef struct{
   uint32 *keystore_ptr;
   uint32  keystore_len;
 } ssd_protect_keystore_req;

 typedef struct{
   uint32 status;
 } ssd_protect_keystore_rsp;

 /* Service IDs */
 #define TZBSP_SVC_INFO              0x06
 #define SCM_SVC_SSD                 0x07
 #define SVC_MEMORY_PROTECTION       0x0C

 /*Service specific command IDs */
 #define SSD_DECRYPT_ID              0x01
 #define SSD_ENCRYPT_ID              0x02
 #define SSD_PROTECT_KEYSTORE_ID     0x05
 #define SSD_PARSE_MD_ID             0x06
 #define SSD_DECRYPT_IMG_FRAG_ID     0x07


 #define SECURE_DEVICE_MDSS          0x01

 #define IOMMU_SECURE_CFG            0x02

 #define TZ_INFO_GET_FEATURE_ID      0x03

 /* SSD parsing status messages from TZ */
 #define SSD_PMD_ENCRYPTED           0
 #define SSD_PMD_NOT_ENCRYPTED       1
 #define SSD_PMD_NO_MD_FOUND         3
 #define SSD_PMD_BUSY                4
 #define SSD_PMD_BAD_MD_PTR_OR_LEN   5
 #define SSD_PMD_PARSING_INCOMPLETE  6
 #define SSD_PMD_PARSING_FAILED      7
 #define SSD_PMD_SETUP_CIPHER_FAILED 8

 /* Keystore status messages */
 #define TZBSP_SSD_PKS_SUCCESS            0 /**< Successful return. */
 #define TZBSP_SSD_PKS_INVALID_PTR        1 /**< Keystore pointer invalid. */
 #define TZBSP_SSD_PKS_INVALID_LEN        2 /**< Keystore length incorrect. */
 #define TZBSP_SSD_PKS_UNALIGNED_PTR      3 /**< Keystore pointer not word
                                              aligned. */
 #define TZBSP_SSD_PKS_PROTECT_MEM_FAILED 4 /**< Failure when protecting
                                              the keystore memory.*/
 #define TZBSP_SSD_PKS_INVALID_NUM_KEYS   5 /**< Unsupported number of
                                              keys passed.  If a valid
                                              pointer to non-secure
                                              memory is passed that
                                              isn't a keystore, this is
                                              a likely return code. */
 #define TZBSP_SSD_PKS_DECRYPT_FAILED     6  /**< The keystore could not be
                                              decrypted. */

 /* Features in TZ */
 #define TZBSP_FVER_SSD              5

 #define TZBSP_GET_FEATURE_VERSION(major) ((major >> 22)& 0x3FF)

 static uint32 smc(uint32 cmd_addr);
 int decrypt_scm(uint32_t ** img_ptr, uint32_t * img_len_ptr);
 int decrypt_scm_v2(uint32_t ** img_ptr, uint32_t * img_len_ptr);
 int encrypt_scm(uint32_t ** img_ptr, uint32_t * img_len_ptr);
 int scm_svc_version(uint32 * major, uint32 * minor);
 int scm_protect_keystore(uint32_t * img_ptr, uint32_t  img_len);

 #define SCM_SVC_FUSE                0x08
 #define SCM_BLOW_SW_FUSE_ID         0x01
 #define SCM_IS_SW_FUSE_BLOWN_ID     0x02

 #define HLOS_IMG_TAMPER_FUSE        0


 #define SCM_SVC_CE_CHN_SWITCH_ID    0x04
 #define SCM_CE_CHN_SWITCH_ID        0x02

 #define SCM_SVC_ES                      0x10
 #define SCM_SAVE_PARTITION_HASH_ID      0x01

 #define SCM_SVC_PWR                     0x9
 #define SCM_IO_DISABLE_PMIC_ARBITER     0x1

 enum ap_ce_channel_type {
 AP_CE_REGISTER_USE = 0,
 AP_CE_ADM_USE = 1
 };

 /* Apps CE resource. */
 #define TZ_RESOURCE_CE_AP  2

 uint8_t switch_ce_chn_cmd(enum ap_ce_channel_type channel);


 void set_tamper_fuse_cmd();

 int scm_halt_pmic_arbiter();

 /**
  * struct scm_command - one SCM command buffer
  * @len: total available memory for command and response
  * @buf_offset: start of command buffer
  * @resp_hdr_offset: start of response buffer
  * @id: command to be executed
  * @buf: buffer returned from scm_get_command_buffer()
  *
  * An SCM command is layed out in memory as follows:
  *
  *	------------------- <--- struct scm_command
  *	| command header  |
  *	------------------- <--- scm_get_command_buffer()
  *	| command buffer  |
  *	------------------- <--- struct scm_response and
  *	| response header |      scm_command_to_response()
  *	------------------- <--- scm_get_response_buffer()
  *	| response buffer |
  *	-------------------
  *
  * There can be arbitrary padding between the headers and buffers so
  * you should always use the appropriate scm_get_*_buffer() routines
  * to access the buffers in a safe manner.
  */
 struct scm_command {
 	uint32_t len;
 	uint32_t buf_offset;
 	uint32_t resp_hdr_offset;
 	uint32_t id;
 	uint32_t buf[0];
 };

 /**
  * struct scm_response - one SCM response buffer
  * @len: total available memory for response
  * @buf_offset: start of response data relative to start of scm_response
  * @is_complete: indicates if the command has finished processing
  */
 struct scm_response {
 	uint32_t len;
 	uint32_t buf_offset;
 	uint32_t is_complete;
 };


 #endif
	/* Copyright (c) 2011-2013, The Linux Foundation. All rights reserved.

	* Redistribution and use in source and binary forms, with or without
	* modification, are permitted provided that the following conditions are
	* met:
	* * Redistributions of source code must retain the above copyright
	* notice, this list of conditions and the following disclaimer.
	* * Redistributions in binary form must reproduce the above
	* copyright notice, this list of conditions and the following
	* disclaimer in the documentation and/or other materials provided
	* with the distribution.
	* * Neither the name of The Linux Foundation nor the names of its
	* contributors may be used to endorse or promote products derived
	* from this software without specific prior written permission.
	*
	* THIS SOFTWARE IS PROVIDED "AS IS" AND ANY EXPRESS OR IMPLIED
	* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
	* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT
	* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS
	* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
	* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
	* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
	* BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
	* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
	* OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN
	* IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
	*/

	#ifndef __SCM_H__
	#define __SCM_H__

	/* 8 Byte SSD magic number (LE) */
	#define DECRYPT_MAGIC_0 0x73737A74
	#define DECRYPT_MAGIC_1 0x676D6964
	#define ENCRYPT_MAGIC_0 0x6B647373
	#define ENCRYPT_MAGIC_1 0x676D6973
	#define SSD_HEADER_MAGIC_SIZE 8
	#define SSD_HEADER_XML_SIZE 2048
	#define SSD_HEADER_MIN_SIZE 128
	#define MULTIPLICATION_FACTOR 2

	typedef unsigned int uint32;

	typedef struct {
	uint32 len;
	uint32 buf_offset;
	uint32 resp_hdr_offset;
	uint32 id;
	} scm_command;

	typedef struct {
	uint32 len;
	uint32 buf_offset;
	uint32 is_complete;
	} scm_response;

	typedef struct {
	uint32 *img_ptr;
	uint32 *img_len_ptr;
	} img_req;

	typedef struct {
	uint32 id;
	uint32 spare;
	} tz_secure_cfg;

	typedef struct {
	uint32 md_len;
	uint32* md;
	} ssd_parse_md_req;

	typedef struct {
	uint32 status;
	uint32 md_ctx_id;
	uint32* md_end_ptr;
	} ssd_parse_md_rsp;

	typedef struct {
	uint32 md_ctx_id;
	uint32 last_frag;
	uint32 frag_len;
	uint32 *frag;
	} ssd_decrypt_img_frag_req;

	typedef struct {
	uint32 status;
	} ssd_decrypt_img_frag_rsp;

	typedef struct{
	uint32 feature_id;
	} feature_version_req;

	typedef struct{
	uint32 version;
	} feature_version_rsp;

	typedef struct{
	uint32 *keystore_ptr;
	uint32 keystore_len;
	} ssd_protect_keystore_req;

	typedef struct{
	uint32 status;
	} ssd_protect_keystore_rsp;

	/* Service IDs */
	#define TZBSP_SVC_INFO 0x06
	#define SCM_SVC_SSD 0x07
	#define SVC_MEMORY_PROTECTION 0x0C

	/Service specific command IDs /
	#define SSD_DECRYPT_ID 0x01
	#define SSD_ENCRYPT_ID 0x02
	#define SSD_PROTECT_KEYSTORE_ID 0x05
	#define SSD_PARSE_MD_ID 0x06
	#define SSD_DECRYPT_IMG_FRAG_ID 0x07


	#define SECURE_DEVICE_MDSS 0x01

	#define IOMMU_SECURE_CFG 0x02

	#define TZ_INFO_GET_FEATURE_ID 0x03

	/* SSD parsing status messages from TZ */
	#define SSD_PMD_ENCRYPTED 0
	#define SSD_PMD_NOT_ENCRYPTED 1
	#define SSD_PMD_NO_MD_FOUND 3
	#define SSD_PMD_BUSY 4
	#define SSD_PMD_BAD_MD_PTR_OR_LEN 5
	#define SSD_PMD_PARSING_INCOMPLETE 6
	#define SSD_PMD_PARSING_FAILED 7
	#define SSD_PMD_SETUP_CIPHER_FAILED 8

	/* Keystore status messages */
	#define TZBSP_SSD_PKS_SUCCESS 0 /*< Successful return. /
	#define TZBSP_SSD_PKS_INVALID_PTR 1 /*< Keystore pointer invalid. /
	#define TZBSP_SSD_PKS_INVALID_LEN 2 /*< Keystore length incorrect. /
	#define TZBSP_SSD_PKS_UNALIGNED_PTR 3 /**< Keystore pointer not word
	aligned. */
	#define TZBSP_SSD_PKS_PROTECT_MEM_FAILED 4 /**< Failure when protecting
	the keystore memory.*/
	#define TZBSP_SSD_PKS_INVALID_NUM_KEYS 5 /**< Unsupported number of
	keys passed. If a valid
	pointer to non-secure
	memory is passed that
	isn't a keystore, this is
	a likely return code. */
	#define TZBSP_SSD_PKS_DECRYPT_FAILED 6 /**< The keystore could not be
	decrypted. */

	/* Features in TZ */
	#define TZBSP_FVER_SSD 5

	#define TZBSP_GET_FEATURE_VERSION(major) ((major >> 22)& 0x3FF)

	static uint32 smc(uint32 cmd_addr);
	int decrypt_scm(uint32_t ** img_ptr, uint32_t * img_len_ptr);
	int decrypt_scm_v2(uint32_t ** img_ptr, uint32_t * img_len_ptr);
	int encrypt_scm(uint32_t ** img_ptr, uint32_t * img_len_ptr);
	int scm_svc_version(uint32 * major, uint32 * minor);
	int scm_protect_keystore(uint32_t * img_ptr, uint32_t img_len);

	#define SCM_SVC_FUSE 0x08
	#define SCM_BLOW_SW_FUSE_ID 0x01
	#define SCM_IS_SW_FUSE_BLOWN_ID 0x02

	#define HLOS_IMG_TAMPER_FUSE 0


	#define SCM_SVC_CE_CHN_SWITCH_ID 0x04
	#define SCM_CE_CHN_SWITCH_ID 0x02

	#define SCM_SVC_ES 0x10
	#define SCM_SAVE_PARTITION_HASH_ID 0x01

	#define SCM_SVC_PWR 0x9
	#define SCM_IO_DISABLE_PMIC_ARBITER 0x1

	enum ap_ce_channel_type {
	AP_CE_REGISTER_USE = 0,
	AP_CE_ADM_USE = 1
	};

	/* Apps CE resource. */
	#define TZ_RESOURCE_CE_AP 2

	uint8_t switch_ce_chn_cmd(enum ap_ce_channel_type channel);


	void set_tamper_fuse_cmd();

	int scm_halt_pmic_arbiter();

	/**
	* struct scm_command - one SCM command buffer
	* @len: total available memory for command and response
	* @buf_offset: start of command buffer
	* @resp_hdr_offset: start of response buffer
	* @id: command to be executed
	* @buf: buffer returned from scm_get_command_buffer()
	*
	* An SCM command is layed out in memory as follows:
	*
	* ------------------- <--- struct scm_command
	* \| command header \|
	* ------------------- <--- scm_get_command_buffer()
	* \| command buffer \|
	* ------------------- <--- struct scm_response and
	* \| response header \| scm_command_to_response()
	* ------------------- <--- scm_get_response_buffer()
	* \| response buffer \|
	* -------------------
	*
	* There can be arbitrary padding between the headers and buffers so
	* you should always use the appropriate scm_get_*_buffer() routines
	* to access the buffers in a safe manner.
	*/
	struct scm_command {
	uint32_t len;
	uint32_t buf_offset;
	uint32_t resp_hdr_offset;
	uint32_t id;
	uint32_t buf[0];
	};

	/**
	* struct scm_response - one SCM response buffer
	* @len: total available memory for response
	* @buf_offset: start of response data relative to start of scm_response
	* @is_complete: indicates if the command has finished processing
	*/
	struct scm_response {
	uint32_t len;
	uint32_t buf_offset;
	uint32_t is_complete;
	};



	#endif