73774def6b
This patch adds a simple non-driver protection domain sample to serve as an example for defining other non-driver protection domains. It simply performs a ping-pong test of protection domain switching latency during boot, including optional accesses to a private metadata region, and prints out the results.
123 lines
3.6 KiB
C
123 lines
3.6 KiB
C
/*
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* Copyright (C) 2015-2016, Intel Corporation. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* 3. Neither the name of the copyright holder nor the names of its
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* contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
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* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
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* COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
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* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
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* OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <stdio.h>
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#include "contiki.h"
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#include "contiki-net.h"
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#include "cpu.h"
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#include "eth.h"
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#include "eth-conf.h"
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#include "galileo-pinmux.h"
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#include "gpio.h"
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#include "helpers.h"
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#include "i2c.h"
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#include "imr-conf.h"
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#include "interrupt.h"
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#include "irq.h"
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#include "pci.h"
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#include "prot-domains.h"
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#include "shared-isr.h"
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#include "uart.h"
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PROCINIT( &etimer_process
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, &tcpip_process
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#if WITH_DNS
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, &resolv_process
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#endif
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);
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extern int _sdata_kern_startup_func, _edata_kern_startup_func;
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/*---------------------------------------------------------------------------*/
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void
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app_main(void)
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{
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printf("Starting Contiki\n");
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process_init();
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procinit_init();
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ctimer_init();
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autostart_start(autostart_processes);
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eth_init();
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while(1) {
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process_run();
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}
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halt();
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}
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/*---------------------------------------------------------------------------*/
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/* Kernel entrypoint */
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int
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main(void)
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{
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uintptr_t *func_ptr;
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#ifdef X86_CONF_RESTRICT_DMA
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quarkX1000_imr_conf();
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#endif
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irq_init();
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/* Initialize UART connected to Galileo Gen2 FTDI header */
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quarkX1000_uart_init(QUARK_X1000_UART_1);
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clock_init();
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rtimer_init();
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pci_root_complex_init();
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quarkX1000_eth_init();
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quarkX1000_i2c_init();
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quarkX1000_i2c_configure(QUARKX1000_I2C_SPEED_STANDARD,
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QUARKX1000_I2C_ADDR_MODE_7BIT);
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/* use default pinmux configuration */
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if(galileo_pinmux_initialize() < 0) {
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fprintf(stderr, "Failed to initialize pinmux\n");
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}
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quarkX1000_gpio_init();
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shared_isr_init();
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/* The ability to remap interrupts is not needed after this point and should
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* thus be disabled according to the principle of least privilege.
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*/
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pci_root_complex_lock();
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func_ptr = (uintptr_t *)&_sdata_kern_startup_func;
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while(func_ptr != (uintptr_t *)&_edata_kern_startup_func) {
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((void (*)(void))*func_ptr)();
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func_ptr++;
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}
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prot_domains_leave_main();
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return 0;
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}
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/*---------------------------------------------------------------------------*/
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