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 2.1 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 21 #ifndef QEMU_APIC_INTERNAL_H 22 #define QEMU_APIC_INTERNAL_H 23 24 #include "cpu.h" 25 #include "exec/memory.h" 26 #include "qemu/timer.h" 27 #include "target/i386/cpu-qom.h" 28 #include "qom/object.h" 29 30 /* APIC Local Vector Table */ 31 #define APIC_LVT_TIMER 0 32 #define APIC_LVT_THERMAL 1 33 #define APIC_LVT_PERFORM 2 34 #define APIC_LVT_LINT0 3 35 #define APIC_LVT_LINT1 4 36 #define APIC_LVT_ERROR 5 37 #define APIC_LVT_NB 6 38 39 /* APIC delivery modes */ 40 #define APIC_DM_FIXED 0 41 #define APIC_DM_LOWPRI 1 42 #define APIC_DM_SMI 2 43 #define APIC_DM_NMI 4 44 #define APIC_DM_INIT 5 45 #define APIC_DM_SIPI 6 46 #define APIC_DM_EXTINT 7 47 48 /* APIC destination mode */ 49 #define APIC_DESTMODE_FLAT 0xf 50 #define APIC_DESTMODE_CLUSTER 1 51 52 #define APIC_TRIGGER_EDGE 0 53 #define APIC_TRIGGER_LEVEL 1 54 55 #define APIC_VECTOR_MASK 0xff 56 #define APIC_DCR_MASK 0xf 57 58 #define APIC_LVT_TIMER_SHIFT 17 59 #define APIC_LVT_MASKED_SHIFT 16 60 #define APIC_LVT_LEVEL_TRIGGER_SHIFT 15 61 #define APIC_LVT_REMOTE_IRR_SHIFT 14 62 #define APIC_LVT_INT_POLARITY_SHIFT 13 63 #define APIC_LVT_DELIV_STS_SHIFT 12 64 #define APIC_LVT_DELIV_MOD_SHIFT 8 65 66 #define APIC_LVT_TIMER_TSCDEADLINE (2 << APIC_LVT_TIMER_SHIFT) 67 #define APIC_LVT_TIMER_PERIODIC (1 << APIC_LVT_TIMER_SHIFT) 68 #define APIC_LVT_MASKED (1 << APIC_LVT_MASKED_SHIFT) 69 #define APIC_LVT_LEVEL_TRIGGER (1 << APIC_LVT_LEVEL_TRIGGER_SHIFT) 70 #define APIC_LVT_REMOTE_IRR (1 << APIC_LVT_REMOTE_IRR_SHIFT) 71 #define APIC_LVT_INT_POLARITY (1 << APIC_LVT_INT_POLARITY_SHIFT) 72 #define APIC_LVT_DELIV_STS (1 << APIC_LVT_DELIV_STS_SHIFT) 73 #define APIC_LVT_DELIV_MOD (7 << APIC_LVT_DELIV_MOD_SHIFT) 74 75 #define APIC_ESR_ILL_ADDRESS_SHIFT 7 76 #define APIC_ESR_RECV_ILL_VECT_SHIFT 6 77 #define APIC_ESR_SEND_ILL_VECT_SHIFT 5 78 #define APIC_ESR_RECV_ACCEPT_SHIFT 3 79 #define APIC_ESR_SEND_ACCEPT_SHIFT 2 80 #define APIC_ESR_RECV_CHECK_SUM_SHIFT 1 81 82 #define APIC_ESR_ILLEGAL_ADDRESS (1 << APIC_ESR_ILL_ADDRESS_SHIFT) 83 #define APIC_ESR_RECV_ILLEGAL_VECT (1 << APIC_ESR_RECV_ILL_VECT_SHIFT) 84 #define APIC_ESR_SEND_ILLEGAL_VECT (1 << APIC_ESR_SEND_ILL_VECT_SHIFT) 85 #define APIC_ESR_RECV_ACCEPT (1 << APIC_ESR_RECV_ACCEPT_SHIFT) 86 #define APIC_ESR_SEND_ACCEPT (1 << APIC_ESR_SEND_ACCEPT_SHIFT) 87 #define APIC_ESR_RECV_CHECK_SUM (1 << APIC_ESR_RECV_CHECK_SUM_SHIFT) 88 #define APIC_ESR_SEND_CHECK_SUM 1 89 90 #define APIC_ICR_DEST_SHIFT 24 91 #define APIC_ICR_DEST_SHORT_SHIFT 18 92 #define APIC_ICR_TRIGGER_MOD_SHIFT 15 93 #define APIC_ICR_LEVEL_SHIFT 14 94 #define APIC_ICR_DELIV_STS_SHIFT 12 95 #define APIC_ICR_DEST_MOD_SHIFT 11 96 #define APIC_ICR_DELIV_MOD_SHIFT 8 97 98 #define APIC_ICR_DEST_SHORT (3 << APIC_ICR_DEST_SHORT_SHIFT) 99 #define APIC_ICR_TRIGGER_MOD (1 << APIC_ICR_TRIGGER_MOD_SHIFT) 100 #define APIC_ICR_LEVEL (1 << APIC_ICR_LEVEL_SHIFT) 101 #define APIC_ICR_DELIV_STS (1 << APIC_ICR_DELIV_STS_SHIFT) 102 #define APIC_ICR_DEST_MOD (1 << APIC_ICR_DEST_MOD_SHIFT) 103 #define APIC_ICR_DELIV_MOD (7 << APIC_ICR_DELIV_MOD_SHIFT) 104 105 #define APIC_PR_CLASS_SHIFT 4 106 #define APIC_PR_SUB_CLASS 0xf 107 108 #define APIC_LOGDEST_XAPIC_SHIFT 4 109 #define APIC_LOGDEST_XAPIC_ID 0xf 110 111 #define APIC_LOGDEST_X2APIC_SHIFT 16 112 #define APIC_LOGDEST_X2APIC_ID 0xffff 113 114 #define APIC_SPURIO_FOCUS_SHIFT 9 115 #define APIC_SPURIO_ENABLED_SHIFT 8 116 117 #define APIC_SPURIO_FOCUS (1 << APIC_SPURIO_FOCUS_SHIFT) 118 #define APIC_SPURIO_ENABLED (1 << APIC_SPURIO_ENABLED_SHIFT) 119 120 #define APIC_SV_DIRECTED_IO (1 << 12) 121 #define APIC_SV_ENABLE (1 << 8) 122 123 #define VAPIC_ENABLE_BIT 0 124 #define VAPIC_ENABLE_MASK (1 << VAPIC_ENABLE_BIT) 125 126 typedef struct APICCommonState APICCommonState; 127 128 #define TYPE_APIC_COMMON "apic-common" 129 typedef struct APICCommonClass APICCommonClass; 130 DECLARE_OBJ_CHECKERS(APICCommonState, APICCommonClass, 131 APIC_COMMON, TYPE_APIC_COMMON) 132 133 struct APICCommonClass { 134 DeviceClass parent_class; 135 136 DeviceRealize realize; 137 DeviceUnrealize unrealize; 138 void (*set_base)(APICCommonState *s, uint64_t val); 139 void (*set_tpr)(APICCommonState *s, uint8_t val); 140 uint8_t (*get_tpr)(APICCommonState *s); 141 void (*enable_tpr_reporting)(APICCommonState *s, bool enable); 142 void (*vapic_base_update)(APICCommonState *s); 143 void (*external_nmi)(APICCommonState *s); 144 void (*pre_save)(APICCommonState *s); 145 void (*post_load)(APICCommonState *s); 146 void (*reset)(APICCommonState *s); 147 /* send_msi emulates an APIC bus and its proper place would be in a new 148 * device, but it's convenient to have it here for now. 149 */ 150 void (*send_msi)(MSIMessage *msi); 151 }; 152 153 struct APICCommonState { 154 /*< private >*/ 155 DeviceState parent_obj; 156 /*< public >*/ 157 158 MemoryRegion io_memory; 159 X86CPU *cpu; 160 uint32_t apicbase; 161 uint8_t id; /* legacy APIC ID */ 162 uint32_t initial_apic_id; 163 uint8_t version; 164 uint8_t arb_id; 165 uint8_t tpr; 166 uint32_t spurious_vec; 167 uint8_t log_dest; 168 uint8_t dest_mode; 169 uint32_t isr[8]; /* in service register */ 170 uint32_t tmr[8]; /* trigger mode register */ 171 uint32_t irr[8]; /* interrupt request register */ 172 uint32_t lvt[APIC_LVT_NB]; 173 uint32_t esr; /* error register */ 174 uint32_t icr[2]; 175 176 uint32_t divide_conf; 177 int count_shift; 178 uint32_t initial_count; 179 int64_t initial_count_load_time; 180 int64_t next_time; 181 QEMUTimer *timer; 182 int64_t timer_expiry; 183 int sipi_vector; 184 int wait_for_sipi; 185 186 uint32_t vapic_control; 187 DeviceState *vapic; 188 hwaddr vapic_paddr; /* note: persistence via kvmvapic */ 189 bool legacy_instance_id; 190 }; 191 192 typedef struct VAPICState { 193 uint8_t tpr; 194 uint8_t isr; 195 uint8_t zero; 196 uint8_t irr; 197 uint8_t enabled; 198 } QEMU_PACKED VAPICState; 199 200 extern bool apic_report_tpr_access; 201 202 bool apic_next_timer(APICCommonState *s, int64_t current_time); 203 void apic_enable_tpr_access_reporting(DeviceState *d, bool enable); 204 void apic_enable_vapic(DeviceState *d, hwaddr paddr); 205 206 void vapic_report_tpr_access(DeviceState *dev, CPUState *cpu, target_ulong ip, 207 TPRAccess access); 208 209 int apic_get_ppr(APICCommonState *s); 210 uint32_t apic_get_current_count(APICCommonState *s); 211 212 static inline void apic_set_bit(uint32_t *tab, int index) 213 { 214 int i, mask; 215 i = index >> 5; 216 mask = 1 << (index & 0x1f); 217 tab[i] |= mask; 218 } 219 220 static inline int apic_get_bit(uint32_t *tab, int index) 221 { 222 int i, mask; 223 i = index >> 5; 224 mask = 1 << (index & 0x1f); 225 return !!(tab[i] & mask); 226 } 227 228 APICCommonClass *apic_get_class(Error **errp); 229 230 #endif /* QEMU_APIC_INTERNAL_H */ 231