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 "exec/memory.h" 24 #include "hw/cpu/icc_bus.h" 25 #include "qemu/timer.h" 26 27 /* APIC Local Vector Table */ 28 #define APIC_LVT_TIMER 0 29 #define APIC_LVT_THERMAL 1 30 #define APIC_LVT_PERFORM 2 31 #define APIC_LVT_LINT0 3 32 #define APIC_LVT_LINT1 4 33 #define APIC_LVT_ERROR 5 34 #define APIC_LVT_NB 6 35 36 /* APIC delivery modes */ 37 #define APIC_DM_FIXED 0 38 #define APIC_DM_LOWPRI 1 39 #define APIC_DM_SMI 2 40 #define APIC_DM_NMI 4 41 #define APIC_DM_INIT 5 42 #define APIC_DM_SIPI 6 43 #define APIC_DM_EXTINT 7 44 45 /* APIC destination mode */ 46 #define APIC_DESTMODE_FLAT 0xf 47 #define APIC_DESTMODE_CLUSTER 1 48 49 #define APIC_TRIGGER_EDGE 0 50 #define APIC_TRIGGER_LEVEL 1 51 52 #define APIC_LVT_TIMER_PERIODIC (1<<17) 53 #define APIC_LVT_MASKED (1<<16) 54 #define APIC_LVT_LEVEL_TRIGGER (1<<15) 55 #define APIC_LVT_REMOTE_IRR (1<<14) 56 #define APIC_INPUT_POLARITY (1<<13) 57 #define APIC_SEND_PENDING (1<<12) 58 59 #define ESR_ILLEGAL_ADDRESS (1 << 7) 60 61 #define APIC_SV_DIRECTED_IO (1<<12) 62 #define APIC_SV_ENABLE (1<<8) 63 64 #define VAPIC_ENABLE_BIT 0 65 #define VAPIC_ENABLE_MASK (1 << VAPIC_ENABLE_BIT) 66 67 #define MAX_APICS 255 68 69 typedef struct APICCommonState APICCommonState; 70 71 #define TYPE_APIC_COMMON "apic-common" 72 #define APIC_COMMON(obj) \ 73 OBJECT_CHECK(APICCommonState, (obj), TYPE_APIC_COMMON) 74 #define APIC_COMMON_CLASS(klass) \ 75 OBJECT_CLASS_CHECK(APICCommonClass, (klass), TYPE_APIC_COMMON) 76 #define APIC_COMMON_GET_CLASS(obj) \ 77 OBJECT_GET_CLASS(APICCommonClass, (obj), TYPE_APIC_COMMON) 78 79 typedef struct APICCommonClass 80 { 81 ICCDeviceClass parent_class; 82 83 DeviceRealize realize; 84 void (*set_base)(APICCommonState *s, uint64_t val); 85 void (*set_tpr)(APICCommonState *s, uint8_t val); 86 uint8_t (*get_tpr)(APICCommonState *s); 87 void (*enable_tpr_reporting)(APICCommonState *s, bool enable); 88 void (*vapic_base_update)(APICCommonState *s); 89 void (*external_nmi)(APICCommonState *s); 90 void (*pre_save)(APICCommonState *s); 91 void (*post_load)(APICCommonState *s); 92 } APICCommonClass; 93 94 struct APICCommonState { 95 ICCDevice busdev; 96 97 MemoryRegion io_memory; 98 X86CPU *cpu; 99 uint32_t apicbase; 100 uint8_t id; 101 uint8_t version; 102 uint8_t arb_id; 103 uint8_t tpr; 104 uint32_t spurious_vec; 105 uint8_t log_dest; 106 uint8_t dest_mode; 107 uint32_t isr[8]; /* in service register */ 108 uint32_t tmr[8]; /* trigger mode register */ 109 uint32_t irr[8]; /* interrupt request register */ 110 uint32_t lvt[APIC_LVT_NB]; 111 uint32_t esr; /* error register */ 112 uint32_t icr[2]; 113 114 uint32_t divide_conf; 115 int count_shift; 116 uint32_t initial_count; 117 int64_t initial_count_load_time; 118 int64_t next_time; 119 int idx; 120 QEMUTimer *timer; 121 int64_t timer_expiry; 122 int sipi_vector; 123 int wait_for_sipi; 124 125 uint32_t vapic_control; 126 DeviceState *vapic; 127 hwaddr vapic_paddr; /* note: persistence via kvmvapic */ 128 }; 129 130 typedef struct VAPICState { 131 uint8_t tpr; 132 uint8_t isr; 133 uint8_t zero; 134 uint8_t irr; 135 uint8_t enabled; 136 } QEMU_PACKED VAPICState; 137 138 extern bool apic_report_tpr_access; 139 140 void apic_report_irq_delivered(int delivered); 141 bool apic_next_timer(APICCommonState *s, int64_t current_time); 142 void apic_enable_tpr_access_reporting(DeviceState *d, bool enable); 143 void apic_enable_vapic(DeviceState *d, hwaddr paddr); 144 145 void vapic_report_tpr_access(DeviceState *dev, CPUState *cpu, target_ulong ip, 146 TPRAccess access); 147 148 #endif /* !QEMU_APIC_INTERNAL_H */ 149