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tag: 20130110
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/*
* GPL HEADER START
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License.
*
* This program 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*
* GPL HEADER END
*
* Copyright 2011 various Linux Kernel contributors.
* Copyright 2011 Joyent, Inc. All Rights Reserved.
*/
#ifndef __KVM_IO_APIC_H
#define __KVM_IO_APIC_H
#include "kvm_host.h"
#include "kvm_iodev.h"
struct kvm;
struct kvm_vcpu;
#define IOAPIC_NUM_PINS KVM_IOAPIC_NUM_PINS
#define IOAPIC_VERSION_ID 0x11 /* IOAPIC version */
#define IOAPIC_EDGE_TRIG 0
#define IOAPIC_LEVEL_TRIG 1
#define IOAPIC_DEFAULT_BASE_ADDRESS 0xfec00000
#define IOAPIC_MEM_LENGTH 0x100
/* Direct registers. */
#define IOAPIC_REG_SELECT 0x00
#define IOAPIC_REG_WINDOW 0x10
#define IOAPIC_REG_EOI 0x40 /* IA64 IOSAPIC only */
/* Indirect registers. */
#define IOAPIC_REG_APIC_ID 0x00 /* x86 IOAPIC only */
#define IOAPIC_REG_VERSION 0x01
#define IOAPIC_REG_ARB_ID 0x02 /* x86 IOAPIC only */
/* ioapic delivery mode */
#define IOAPIC_FIXED 0x0
#define IOAPIC_LOWEST_PRIORITY 0x1
#define IOAPIC_PMI 0x2
#define IOAPIC_NMI 0x4
#define IOAPIC_INIT 0x5
#define IOAPIC_EXTINT 0x7
typedef struct kvm_ioapic {
uint64_t base_address;
uint32_t ioregsel;
uint32_t id;
uint32_t irr;
uint32_t pad;
union kvm_ioapic_redirect_entry redirtbl[IOAPIC_NUM_PINS];
unsigned long irq_states[IOAPIC_NUM_PINS];
struct kvm_io_device dev;
struct kvm *kvm;
void (*ack_notifier)(void *opaque, int irq);
kmutex_t lock;
unsigned long handled_vectors[BT_BITOUL(256)];
} kvm_ioapic_t;
extern struct kvm_ioapic *ioapic_irqchip(struct kvm *);
extern void kvm_ioapic_update_eoi(struct kvm *, int, int);
extern int kvm_ioapic_init(struct kvm *);
extern void kvm_ioapic_destroy(struct kvm *);
extern int kvm_ioapic_set_irq(struct kvm_ioapic *, int, int);
extern void kvm_ioapic_reset(struct kvm_ioapic *);
extern int kvm_irq_delivery_to_apic(struct kvm *, struct kvm_lapic *,
struct kvm_lapic_irq *);
extern int kvm_get_ioapic(struct kvm *, struct kvm_ioapic_state *);
extern int kvm_set_ioapic(struct kvm *, struct kvm_ioapic_state *);
#endif
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