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/*
* Copyright (c) 2014, Allwinner Technology Co., Ltd.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
*
* 2. 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.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER 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.
*/
#include <platform_config.h>
#include <stdint.h>
#include <string.h>
#include <assert.h>
#include <sm/sm.h>
#include <sm/tee_mon.h>
#include <sm/optee_smc.h>
#include <optee_msg.h>
#include <arm.h>
#include <kernel/thread.h>
#include <kernel/time_source.h>
#include <kernel/panic.h>
#include <kernel/pm_stubs.h>
#include <kernel/misc.h>
#include <mm/tee_mmu.h>
#include <mm/core_mmu.h>
#include <tee/entry_std.h>
#include <tee/entry_fast.h>
#include <platform.h>
#include <util.h>
#include <trace.h>
#include <malloc.h>
/* teecore heap address/size is defined in scatter file */
extern unsigned char teecore_heap_start;
extern unsigned char teecore_heap_end;
static void main_fiq(void);
static void main_tee_entry_std(struct thread_smc_args *args);
static void main_tee_entry_fast(struct thread_smc_args *args);
static const struct thread_handlers handlers = {
.std_smc = main_tee_entry_std,
.fast_smc = main_tee_entry_fast,
.fiq = main_fiq,
.cpu_on = pm_panic,
.cpu_off = pm_panic,
.cpu_suspend = pm_panic,
.cpu_resume = pm_panic,
.system_off = pm_panic,
.system_reset = pm_panic,
};
void main_init(uint32_t nsec_entry); /* called from assembly only */
void main_init(uint32_t nsec_entry)
{
struct sm_nsec_ctx *nsec_ctx;
size_t pos = get_core_pos();
/*
* Mask IRQ and FIQ before switch to the thread vector as the
* thread handler requires IRQ and FIQ to be masked while executing
* with the temporary stack. The thread subsystem also asserts that
* IRQ is blocked when using most if its functions.
*/
thread_mask_exceptions(THREAD_EXCP_FIQ | THREAD_EXCP_IRQ);
if (pos == 0) {
thread_init_primary(&handlers);
/* initialize platform */
platform_init();
}
thread_init_per_cpu();
/* Initialize secure monitor */
nsec_ctx = sm_get_nsec_ctx();
nsec_ctx->mon_lr = nsec_entry;
nsec_ctx->mon_spsr = CPSR_MODE_SVC | CPSR_I;
if (pos == 0) {
unsigned long a, s;
/* core malloc pool init */
#ifdef CFG_TEE_MALLOC_START
a = CFG_TEE_MALLOC_START;
s = CFG_TEE_MALLOC_SIZE;
#else
a = (unsigned long)&teecore_heap_start;
s = (unsigned long)&teecore_heap_end;
a = ((a + 1) & ~0x0FFFF) + 0x10000; /* 64kB aligned */
s = s & ~0x0FFFF; /* 64kB aligned */
s = s - a;
#endif
malloc_add_pool((void *)a, s);
teecore_init_ta_ram();
if (init_teecore() != TEE_SUCCESS) {
panic();
}
}
IMSG("optee initialize finished\n");
}
static void main_fiq(void)
{
panic();
}
static void main_tee_entry_fast(struct thread_smc_args *args)
{
/* TODO move to main_init() */
if (init_teecore() != TEE_SUCCESS)
panic();
/* SiP Service Call Count */
if (args->a0 == OPTEE_SMC_SIP_SUNXI_CALLS_COUNT) {
args->a0 = 1;
return;
}
/* SiP Service Call UID */
if (args->a0 == OPTEE_SMC_SIP_SUNXI_CALLS_UID) {
args->a0 = OPTEE_SMC_SIP_SUNXI_UID_R0;
args->a1 = OPTEE_SMC_SIP_SUNXI_UID_R1;
args->a2 = OPTEE_SMC_SIP_SUNXI_UID_R2;
args->a3 = OPTEE_SMC_SIP_SUNXI_UID_R3;
return;
}
/* SiP Service Calls */
if (args->a0 == OPTEE_SMC_OPTEE_FAST_CALL_SIP_SUNXI) {
platform_smc_handle(args);
return;
}
tee_entry_fast(args);
}
static void main_tee_entry_std(struct thread_smc_args *args)
{
/* TODO move to main_init() */
if (init_teecore() != TEE_SUCCESS)
panic();
tee_entry_std(args);
}
/* main_tee_entry_fast() supports 3 platform-specific functions */
void tee_entry_get_api_call_count(struct thread_smc_args *args)
{
args->a0 = tee_entry_generic_get_api_call_count() + 3;
}
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