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3eefe12b4b
OP-TEE message UID check API can be useful to know whether OP-TEE is enabled on not assuming the corresponding SMC call is properly handled if OP-TEE is not supported. This API can be used by platform code to know OP-TEE presence and on that basis OP-TEE DT node can be added as part of DT fixups for the OP-TEE driver probe to happen for both U-Boot and Linux. Signed-off-by: Sumit Garg <sumit.garg@oss.qualcomm.com> Reviewed-by: Casey Connolly <casey.connolly@linaro.org> Link: https://patch.msgid.link/20260127062341.723966-2-sumit.garg@kernel.org Signed-off-by: Casey Connolly <casey.connolly@linaro.org>
78 lines
1.6 KiB
C
78 lines
1.6 KiB
C
/* SPDX-License-Identifier: BSD-2-Clause */
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/*
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* OP-TEE related definitions
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*
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* (C) Copyright 2016 Linaro Limited
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* Andrew F. Davis <andrew.davis@linaro.org>
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*/
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#ifndef _OPTEE_H
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#define _OPTEE_H
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#include <linux/errno.h>
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#include <image.h>
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#define OPTEE_MAGIC 0x4554504f
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#define OPTEE_VERSION 1
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#define OPTEE_ARCH_ARM32 0
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#define OPTEE_ARCH_ARM64 1
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struct optee_header {
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uint32_t magic;
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uint8_t version;
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uint8_t arch;
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uint16_t flags;
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uint32_t init_size;
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uint32_t init_load_addr_hi;
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uint32_t init_load_addr_lo;
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uint32_t init_mem_usage;
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uint32_t paged_size;
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};
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static inline uint32_t
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optee_image_get_entry_point(const struct legacy_img_hdr *hdr)
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{
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struct optee_header *optee_hdr = (struct optee_header *)(hdr + 1);
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return optee_hdr->init_load_addr_lo;
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}
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static inline uint32_t
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optee_image_get_load_addr(const struct legacy_img_hdr *hdr)
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{
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return optee_image_get_entry_point(hdr) - sizeof(struct optee_header);
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}
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#if defined(CONFIG_OPTEE_IMAGE)
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int optee_verify_bootm_image(unsigned long image_addr,
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unsigned long image_load_addr,
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unsigned long image_len);
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#else
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static inline int optee_verify_bootm_image(unsigned long image_addr,
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unsigned long image_load_addr,
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unsigned long image_len)
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{
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return -EPERM;
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}
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#endif
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#if defined(CONFIG_OPTEE_LIB) && defined(CONFIG_OF_LIBFDT)
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int optee_copy_fdt_nodes(void *new_blob);
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#else
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static inline int optee_copy_fdt_nodes(void *new_blob)
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{
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return 0;
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}
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#endif
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#if defined(CONFIG_OPTEE)
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bool is_optee_smc_api(void);
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#else
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static inline bool is_optee_smc_api(void)
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{
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return false;
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}
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#endif
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#endif /* _OPTEE_H */
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