1 /* 2 * Copyright (c) 2012-2018 LK Trusty Authors. All Rights Reserved. 3 * 4 * Permission is hereby granted, free of charge, to any person obtaining 5 * a copy of this software and associated documentation files 6 * (the "Software"), to deal in the Software without restriction, 7 * including without limitation the rights to use, copy, modify, merge, 8 * publish, distribute, sublicense, and/or sell copies of the Software, 9 * and to permit persons to whom the Software is furnished to do so, 10 * subject to the following conditions: 11 * 12 * The above copyright notice and this permission notice shall be 13 * included in all copies or substantial portions of the Software. 14 * 15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, 16 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF 17 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. 18 * IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY 19 * CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, 20 * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE 21 * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. 22 */ 23 #pragma once 24 25 #include <stdbool.h> 26 #include <sys/types.h> 27 28 /** 29 * local_apic_init() -- Initialize Local APIC 30 * @level: LK init level 31 */ 32 void local_apic_init(uint level); 33 34 /** 35 * lapic_eoi() -- Trigger local APIC EOI 36 */ 37 void lapic_eoi(void); 38 39 /** 40 * lapic_software_disable() -- Software disable local APIC 41 * 42 * Trusty LK initialize local APIC to handle external interrupt, local APIC 43 * should be software disabled before switch back to Non-secure world if 44 * local APIC will be operated by Non-secure world. 45 */ 46 void lapic_software_disable(void); 47 48 /** 49 * send_self_ipi() -- Trigger self IPI via local APIC 50 * @vector: vector ID to be triggered. 51 */ 52 bool send_self_ipi(uint32_t vector); 53