hw/apic_internal.h

   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 "memory.h"
  24 #include "sysbus.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 MAX_APICS 255
  65
  66 #define MSI_SPACE_SIZE                  0x100000
  67
  68 typedef struct APICCommonState APICCommonState;
  69
  70 #define TYPE_APIC_COMMON "apic-common"
  71 #define APIC_COMMON(obj) \
  72      OBJECT_CHECK(APICCommonState, (obj), TYPE_APIC_COMMON)
  73 #define APIC_COMMON_CLASS(klass) \
  74      OBJECT_CLASS_CHECK(APICCommonClass, (klass), TYPE_APIC_COMMON)
  75 #define APIC_COMMON_GET_CLASS(obj) \
  76      OBJECT_GET_CLASS(APICCommonClass, (obj), TYPE_APIC_COMMON)
  77
  78 typedef struct APICCommonClass
  79 {
  80     SysBusDeviceClass parent_class;
  81
  82     void (*init)(APICCommonState *s);
  83     void (*set_base)(APICCommonState *s, uint64_t val);
  84     void (*set_tpr)(APICCommonState *s, uint8_t val);
  85     void (*external_nmi)(APICCommonState *s);
  86     void (*post_load)(APICCommonState *s);
  87 } APICCommonClass;
  88
  89 struct APICCommonState {
  90     SysBusDevice busdev;
  91     MemoryRegion io_memory;
  92     void *cpu_env;
  93     uint32_t apicbase;
  94     uint8_t id;
  95     uint8_t arb_id;
  96     uint8_t tpr;
  97     uint32_t spurious_vec;
  98     uint8_t log_dest;
  99     uint8_t dest_mode;
 100     uint32_t isr[8];  /* in service register */
 101     uint32_t tmr[8];  /* trigger mode register */
 102     uint32_t irr[8]; /* interrupt request register */
 103     uint32_t lvt[APIC_LVT_NB];
 104     uint32_t esr; /* error register */
 105     uint32_t icr[2];
 106
 107     uint32_t divide_conf;
 108     int count_shift;
 109     uint32_t initial_count;
 110     int64_t initial_count_load_time;
 111     int64_t next_time;
 112     int idx;
 113     QEMUTimer *timer;
 114     int64_t timer_expiry;
 115     int sipi_vector;
 116     int wait_for_sipi;
 117 };
 118
 119 void apic_report_irq_delivered(int delivered);
 120 bool apic_next_timer(APICCommonState *s, int64_t current_time);
 121
 122 #endif /* !QEMU_APIC_INTERNAL_H */