f19ffc2867
Set saved cmac on ioctl from user space. Write saved cmac to shared memory on SSR. Read calculated cmac from shared memory. Provide calculated cmac to user space via sysfs. Cleanup unused IAR-STATE fuses. Cleanup unused IAR-FEATURE-ENABLED fuse. Read actual PIL area size from register. pbl_cmac_show() returns binary rather than string. Change IOCTL to use variable-size-array. Change-Id: Ic4ea38685f6b9d1100a28bd958e44f513373fea9 Signed-off-by: Amir Samuelov <amirs@codeaurora.org>
108 lines
2.9 KiB
C
108 lines
2.9 KiB
C
/* SPDX-License-Identifier: GPL-2.0-only WITH Linux-syscall-note */
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/*
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* Copyright (c) 2019-2020, The Linux Foundation. All rights reserved.
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*/
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#ifndef _UAPI_SPSS_UTILS_H_
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#define _UAPI_SPSS_UTILS_H_
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#include <linux/types.h> /* __u32, _Bool */
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#include <linux/ioctl.h> /* ioctl() */
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/**
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* @brief - Secure Processor Utilities interface to user space
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*
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* The kernel spss_utils driver interface to user space via IOCTL
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* and SYSFS (device attributes).
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*/
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#define SPSS_IOC_MAGIC 'S'
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/* ---------- set fw cmac --------------------------------- */
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#define OLD_NUM_SPU_UEFI_APPS 3 /* Obsolete */
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#define CMAC_SIZE_IN_WORDS 4
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/* Obsolete struct, keep for backward compatible */
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struct spss_ioc_set_fw_cmac {
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__u32 cmac[CMAC_SIZE_IN_WORDS];
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__u32 apps_cmac[OLD_NUM_SPU_UEFI_APPS][CMAC_SIZE_IN_WORDS];
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} __packed;
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#define SPSS_IOC_SET_FW_CMAC \
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_IOWR(SPSS_IOC_MAGIC, 1, struct spss_ioc_set_fw_cmac)
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/* ---------- wait for event ------------------------------ */
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enum spss_event_id {
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/* signaled from user */
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SPSS_EVENT_ID_PIL_CALLED = 0,
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SPSS_EVENT_ID_NVM_READY = 1,
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SPSS_EVENT_ID_SPU_READY = 2,
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SPSS_NUM_USER_EVENTS,
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/* signaled from kernel */
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SPSS_EVENT_ID_SPU_POWER_DOWN = 6,
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SPSS_EVENT_ID_SPU_POWER_UP = 7,
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SPSS_NUM_EVENTS,
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};
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enum spss_event_status {
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EVENT_STATUS_SIGNALED = 0xAAAA,
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EVENT_STATUS_NOT_SIGNALED = 0xFFFF,
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EVENT_STATUS_TIMEOUT = 0xEEE1,
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EVENT_STATUS_ABORTED = 0xEEE2,
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};
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struct spss_ioc_wait_for_event {
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__u32 event_id; /* input */
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__u32 timeout_sec; /* input */
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__u32 status; /* output */
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} __packed;
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#define SPSS_IOC_WAIT_FOR_EVENT \
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_IOWR(SPSS_IOC_MAGIC, 2, struct spss_ioc_wait_for_event)
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/* ---------- signal event ------------------------------ */
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struct spss_ioc_signal_event {
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__u32 event_id; /* input */
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__u32 status; /* output */
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} __packed;
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#define SPSS_IOC_SIGNAL_EVENT \
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_IOWR(SPSS_IOC_MAGIC, 3, struct spss_ioc_signal_event)
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/* ---------- is event isgnaled ------------------------------ */
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struct spss_ioc_is_signaled {
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__u32 event_id; /* input */
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__u32 status; /* output */
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} __attribute__((packed));
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#define SPSS_IOC_IS_EVENT_SIGNALED \
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_IOWR(SPSS_IOC_MAGIC, 4, struct spss_ioc_is_signaled)
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/* ---------- set ssr state ------------------------------ */
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#define SPSS_IOC_SET_SSR_STATE \
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_IOWR(SPSS_IOC_MAGIC, 5, __u32)
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/* ---------- set fw and apps cmac --------------------------------- */
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/* Asym , Crypt , Keym + 3rd party uefi apps */
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#define MAX_SPU_UEFI_APPS 8
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/** use variable-size-array for future growth */
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struct spss_ioc_set_fw_and_apps_cmac {
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__u64 cmac_buf_ptr;
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/*
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* expected cmac_buf_size is:
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* (1+MAX_SPU_UEFI_APPS)*CMAC_SIZE_IN_WORDS*sizeof(uint32_t)
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*/
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__u32 cmac_buf_size;
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__u32 num_of_cmacs;
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} __attribute__((packed));
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#define SPSS_IOC_SET_FW_AND_APPS_CMAC \
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_IOWR(SPSS_IOC_MAGIC, 6, struct spss_ioc_set_fw_and_apps_cmac)
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#endif /* _UAPI_SPSS_UTILS_H_ */
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