Archipelago » qemu

/*

 *  IOAPIC emulation logic - internal interfaces

 *

 *  Copyright (c) 2004-2005 Fabrice Bellard

 *  Copyright (c) 2009      Xiantao Zhang, Intel

 *  Copyright (c) 2011 Jan Kiszka, Siemens AG

 *

 * This library is free software; you can redistribute it and/or

 * modify it under the terms of the GNU Lesser General Public

 * License as published by the Free Software Foundation; either

 * version 2 of the License, or (at your option) any later version.

 *

 * This library is distributed in the hope that it will be useful,

 * but WITHOUT ANY WARRANTY; without even the implied warranty of

 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU

 * Lesser General Public License for more details.

 *

 * You should have received a copy of the GNU Lesser General Public

 * License along with this library; if not, see <http://www.gnu.org/licenses/>.

 */

#ifndef QEMU_IOAPIC_INTERNAL_H

#define QEMU_IOAPIC_INTERNAL_H

#include "hw/hw.h"

#include "exec/memory.h"

#include "hw/sysbus.h"

#define MAX_IOAPICS                     1

#define IOAPIC_VERSION                  0x11

#define IOAPIC_LVT_DEST_SHIFT           56

#define IOAPIC_LVT_MASKED_SHIFT         16

#define IOAPIC_LVT_TRIGGER_MODE_SHIFT   15

#define IOAPIC_LVT_REMOTE_IRR_SHIFT     14

#define IOAPIC_LVT_POLARITY_SHIFT       13

#define IOAPIC_LVT_DELIV_STATUS_SHIFT   12

#define IOAPIC_LVT_DEST_MODE_SHIFT      11

#define IOAPIC_LVT_DELIV_MODE_SHIFT     8

#define IOAPIC_LVT_MASKED               (1 << IOAPIC_LVT_MASKED_SHIFT)

#define IOAPIC_LVT_REMOTE_IRR           (1 << IOAPIC_LVT_REMOTE_IRR_SHIFT)

#define IOAPIC_TRIGGER_EDGE             0

#define IOAPIC_TRIGGER_LEVEL            1

/*io{apic,sapic} delivery mode*/

#define IOAPIC_DM_FIXED                 0x0

#define IOAPIC_DM_LOWEST_PRIORITY       0x1

#define IOAPIC_DM_PMI                   0x2

#define IOAPIC_DM_NMI                   0x4

#define IOAPIC_DM_INIT                  0x5

#define IOAPIC_DM_SIPI                  0x6

#define IOAPIC_DM_EXTINT                0x7

#define IOAPIC_DM_MASK                  0x7

#define IOAPIC_VECTOR_MASK              0xff

#define IOAPIC_IOREGSEL                 0x00

#define IOAPIC_IOWIN                    0x10

#define IOAPIC_REG_ID                   0x00

#define IOAPIC_REG_VER                  0x01

#define IOAPIC_REG_ARB                  0x02

#define IOAPIC_REG_REDTBL_BASE          0x10

#define IOAPIC_ID                       0x00

#define IOAPIC_ID_SHIFT                 24

#define IOAPIC_ID_MASK                  0xf

#define IOAPIC_VER_ENTRIES_SHIFT        16

typedef struct IOAPICCommonState IOAPICCommonState;

#define TYPE_IOAPIC_COMMON "ioapic-common"

#define IOAPIC_COMMON(obj) \

     OBJECT_CHECK(IOAPICCommonState, (obj), TYPE_IOAPIC_COMMON)

#define IOAPIC_COMMON_CLASS(klass) \

     OBJECT_CLASS_CHECK(IOAPICCommonClass, (klass), TYPE_IOAPIC_COMMON)

#define IOAPIC_COMMON_GET_CLASS(obj) \

     OBJECT_GET_CLASS(IOAPICCommonClass, (obj), TYPE_IOAPIC_COMMON)

typedef struct IOAPICCommonClass {

    SysBusDeviceClass parent_class;

    void (*init)(IOAPICCommonState *s, int instance_no);

    void (*pre_save)(IOAPICCommonState *s);

    void (*post_load)(IOAPICCommonState *s);

} IOAPICCommonClass;

struct IOAPICCommonState {

    SysBusDevice busdev;

    MemoryRegion io_memory;

    uint8_t id;

    uint8_t ioregsel;

    uint32_t irr;

    uint64_t ioredtbl[IOAPIC_NUM_PINS];

};

void ioapic_reset_common(DeviceState *dev);

#endif /* !QEMU_IOAPIC_INTERNAL_H */