include/hw/intc/arm_gicv3_its_common.h

   1 /*
   2  * ITS support for ARM GICv3
   3  *
   4  * Copyright (c) 2015 Samsung Electronics Co., Ltd.
   5  * Written by Pavel Fedin
   6  *
   7  * This program is free software; you can redistribute it and/or modify
   8  * it under the terms of the GNU General Public License as published by
   9  * the Free Software Foundation, either version 2 of the License, or
  10  * (at your option) any later version.
  11  *
  12  * This program 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
  15  * GNU General Public License for more details.
  16  *
  17  * You should have received a copy of the GNU General Public License along
  18  * with this program; if not, see <http://www.gnu.org/licenses/>.
  19  */
  20
  21 #ifndef QEMU_ARM_GICV3_ITS_COMMON_H
  22 #define QEMU_ARM_GICV3_ITS_COMMON_H
  23
  24 #include "hw/sysbus.h"
  25 #include "hw/intc/arm_gicv3_common.h"
  26 #include "qom/object.h"
  27
  28 #define ITS_CONTROL_SIZE 0x10000
  29 #define ITS_TRANS_SIZE   0x10000
  30 #define ITS_SIZE         (ITS_CONTROL_SIZE + ITS_TRANS_SIZE)
  31
  32 #define GITS_CTLR        0x0
  33 #define GITS_IIDR        0x4
  34 #define GITS_CBASER      0x80
  35 #define GITS_CWRITER     0x88
  36 #define GITS_CREADR      0x90
  37 #define GITS_BASER       0x100
  38
  39 struct GICv3ITSState {
  40     SysBusDevice parent_obj;
  41
  42     MemoryRegion iomem_main;
  43     MemoryRegion iomem_its_cntrl;
  44     MemoryRegion iomem_its_translation;
  45
  46     GICv3State *gicv3;
  47
  48     int dev_fd; /* kvm device fd if backed by kvm vgic support */
  49     uint64_t gits_translater_gpa;
  50     bool translater_gpa_known;
  51
  52     /* Registers */
  53     uint32_t ctlr;
  54     uint32_t iidr;
  55     uint64_t cbaser;
  56     uint64_t cwriter;
  57     uint64_t creadr;
  58     uint64_t baser[8];
  59
  60     Error *migration_blocker;
  61 };
  62
  63 typedef struct GICv3ITSState GICv3ITSState;
  64
  65 void gicv3_its_init_mmio(GICv3ITSState *s, const MemoryRegionOps *ops);
  66
  67 #define TYPE_ARM_GICV3_ITS_COMMON "arm-gicv3-its-common"
  68 typedef struct GICv3ITSCommonClass GICv3ITSCommonClass;
  69 #define ARM_GICV3_ITS_COMMON(obj) \
  70      OBJECT_CHECK(GICv3ITSState, (obj), TYPE_ARM_GICV3_ITS_COMMON)
  71 #define ARM_GICV3_ITS_COMMON_CLASS(klass) \
  72      OBJECT_CLASS_CHECK(GICv3ITSCommonClass, (klass), TYPE_ARM_GICV3_ITS_COMMON)
  73 #define ARM_GICV3_ITS_COMMON_GET_CLASS(obj) \
  74      OBJECT_GET_CLASS(GICv3ITSCommonClass, (obj), TYPE_ARM_GICV3_ITS_COMMON)
  75
  76 struct GICv3ITSCommonClass {
  77     /*< private >*/
  78     SysBusDeviceClass parent_class;
  79     /*< public >*/
  80
  81     int (*send_msi)(GICv3ITSState *s, uint32_t data, uint16_t devid);
  82     void (*pre_save)(GICv3ITSState *s);
  83     void (*post_load)(GICv3ITSState *s);
  84 };
  85
  86
  87 #endif