1 /* 2 * APIC support - internal interfaces 3 * 4 * Copyright (c) 2004-2005 Fabrice Bellard 5 * Copyright (c) 2011 Jan Kiszka, Siemens AG 6 * 7 * This library is free software; you can redistribute it and/or 8 * modify it under the terms of the GNU Lesser General Public 9 * License as published by the Free Software Foundation; either 10 * version 2 of the License, or (at your option) any later version. 11 * 12 * This library is distributed in the hope that it will be useful, 13 * but WITHOUT ANY WARRANTY; without even the implied warranty of 14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 15 * Lesser General Public License for more details. 16 * 17 * You should have received a copy of the GNU Lesser General Public 18 * License along with this library; if not, see <http://www.gnu.org/licenses/> 19 */ 20 #ifndef QEMU_APIC_INTERNAL_H 21 #define QEMU_APIC_INTERNAL_H 22 23 #include "cpu.h" 24 #include "exec/memory.h" 25 #include "hw/cpu/icc_bus.h" 26 #include "qemu/timer.h" 27 28 /* APIC Local Vector Table */ 29 #define APIC_LVT_TIMER 0 30 #define APIC_LVT_THERMAL 1 31 #define APIC_LVT_PERFORM 2 32 #define APIC_LVT_LINT0 3 33 #define APIC_LVT_LINT1 4 34 #define APIC_LVT_ERROR 5 35 #define APIC_LVT_NB 6 36 37 /* APIC delivery modes */ 38 #define APIC_DM_FIXED 0 39 #define APIC_DM_LOWPRI 1 40 #define APIC_DM_SMI 2 41 #define APIC_DM_NMI 4 42 #define APIC_DM_INIT 5 43 #define APIC_DM_SIPI 6 44 #define APIC_DM_EXTINT 7 45 46 /* APIC destination mode */ 47 #define APIC_DESTMODE_FLAT 0xf 48 #define APIC_DESTMODE_CLUSTER 1 49 50 #define APIC_TRIGGER_EDGE 0 51 #define APIC_TRIGGER_LEVEL 1 52 53 #define APIC_LVT_TIMER_PERIODIC (1<<17) 54 #define APIC_LVT_MASKED (1<<16) 55 #define APIC_LVT_LEVEL_TRIGGER (1<<15) 56 #define APIC_LVT_REMOTE_IRR (1<<14) 57 #define APIC_INPUT_POLARITY (1<<13) 58 #define APIC_SEND_PENDING (1<<12) 59 60 #define ESR_ILLEGAL_ADDRESS (1 << 7) 61 62 #define APIC_SV_DIRECTED_IO (1<<12) 63 #define APIC_SV_ENABLE (1<<8) 64 65 #define VAPIC_ENABLE_BIT 0 66 #define VAPIC_ENABLE_MASK (1 << VAPIC_ENABLE_BIT) 67 68 #define MAX_APICS 255 69 70 typedef struct APICCommonState APICCommonState; 71 72 #define TYPE_APIC_COMMON "apic-common" 73 #define APIC_COMMON(obj) \ 74 OBJECT_CHECK(APICCommonState, (obj), TYPE_APIC_COMMON) 75 #define APIC_COMMON_CLASS(klass) \ 76 OBJECT_CLASS_CHECK(APICCommonClass, (klass), TYPE_APIC_COMMON) 77 #define APIC_COMMON_GET_CLASS(obj) \ 78 OBJECT_GET_CLASS(APICCommonClass, (obj), TYPE_APIC_COMMON) 79 80 typedef struct APICCommonClass 81 { 82 ICCDeviceClass parent_class; 83 84 DeviceRealize realize; 85 void (*set_base)(APICCommonState *s, uint64_t val); 86 void (*set_tpr)(APICCommonState *s, uint8_t val); 87 uint8_t (*get_tpr)(APICCommonState *s); 88 void (*enable_tpr_reporting)(APICCommonState *s, bool enable); 89 void (*vapic_base_update)(APICCommonState *s); 90 void (*external_nmi)(APICCommonState *s); 91 void (*pre_save)(APICCommonState *s); 92 void (*post_load)(APICCommonState *s); 93 void (*reset)(APICCommonState *s); 94 } APICCommonClass; 95 96 struct APICCommonState { 97 ICCDevice busdev; 98 99 MemoryRegion io_memory; 100 X86CPU *cpu; 101 uint32_t apicbase; 102 uint8_t id; 103 uint8_t version; 104 uint8_t arb_id; 105 uint8_t tpr; 106 uint32_t spurious_vec; 107 uint8_t log_dest; 108 uint8_t dest_mode; 109 uint32_t isr[8]; /* in service register */ 110 uint32_t tmr[8]; /* trigger mode register */ 111 uint32_t irr[8]; /* interrupt request register */ 112 uint32_t lvt[APIC_LVT_NB]; 113 uint32_t esr; /* error register */ 114 uint32_t icr[2]; 115 116 uint32_t divide_conf; 117 int count_shift; 118 uint32_t initial_count; 119 int64_t initial_count_load_time; 120 int64_t next_time; 121 int idx; 122 QEMUTimer *timer; 123 int64_t timer_expiry; 124 int sipi_vector; 125 int wait_for_sipi; 126 127 uint32_t vapic_control; 128 DeviceState *vapic; 129 hwaddr vapic_paddr; /* note: persistence via kvmvapic */ 130 }; 131 132 typedef struct VAPICState { 133 uint8_t tpr; 134 uint8_t isr; 135 uint8_t zero; 136 uint8_t irr; 137 uint8_t enabled; 138 } QEMU_PACKED VAPICState; 139 140 extern bool apic_report_tpr_access; 141 142 void apic_report_irq_delivered(int delivered); 143 bool apic_next_timer(APICCommonState *s, int64_t current_time); 144 void apic_enable_tpr_access_reporting(DeviceState *d, bool enable); 145 void apic_enable_vapic(DeviceState *d, hwaddr paddr); 146 147 void vapic_report_tpr_access(DeviceState *dev, CPUState *cpu, target_ulong ip, 148 TPRAccess access); 149 150 #endif /* !QEMU_APIC_INTERNAL_H */ 151