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/*
* 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 "exec/memory.h"
#include "hw/sysbus.h"
#include "qemu/notify.h"
#define MAX_IOAPICS 1
#define IOAPIC_LVT_DEST_SHIFT 56
#define IOAPIC_LVT_DEST_IDX_SHIFT 48
#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_TRIGGER_MODE (1 << IOAPIC_LVT_TRIGGER_MODE_SHIFT)
#define IOAPIC_LVT_REMOTE_IRR (1 << IOAPIC_LVT_REMOTE_IRR_SHIFT)
#define IOAPIC_LVT_POLARITY (1 << IOAPIC_LVT_POLARITY_SHIFT)
#define IOAPIC_LVT_DELIV_STATUS (1 << IOAPIC_LVT_DELIV_STATUS_SHIFT)
#define IOAPIC_LVT_DEST_MODE (1 << IOAPIC_LVT_DEST_MODE_SHIFT)
#define IOAPIC_LVT_DELIV_MODE (7 << IOAPIC_LVT_DELIV_MODE_SHIFT)
/* Bits that are read-only for IOAPIC entry */
#define IOAPIC_RO_BITS (IOAPIC_LVT_REMOTE_IRR | \
IOAPIC_LVT_DELIV_STATUS)
#define IOAPIC_RW_BITS (~(uint64_t)IOAPIC_RO_BITS)
#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_EOI 0x40
#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;
DeviceRealize realize;
DeviceUnrealize unrealize;
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];
Notifier machine_done;
uint8_t version;
uint64_t irq_count[IOAPIC_NUM_PINS];
int irq_level[IOAPIC_NUM_PINS];
int irq_eoi[IOAPIC_NUM_PINS];
QEMUTimer *delayed_ioapic_service_timer;
};
void ioapic_reset_common(DeviceState *dev);
void ioapic_print_redtbl(Monitor *mon, IOAPICCommonState *s);
void ioapic_stat_update_irq(IOAPICCommonState *s, int irq, int level);
#endif /* QEMU_IOAPIC_INTERNAL_H */
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