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/*
* APIC support - internal interfaces
*
* Copyright (c) 2004-2005 Fabrice Bellard
* 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_APIC_INTERNAL_H
#define QEMU_APIC_INTERNAL_H
#include "exec/memory.h"
#include "hw/cpu/icc_bus.h"
#include "qemu/timer.h"
/* APIC Local Vector Table */
#define APIC_LVT_TIMER 0
#define APIC_LVT_THERMAL 1
#define APIC_LVT_PERFORM 2
#define APIC_LVT_LINT0 3
#define APIC_LVT_LINT1 4
#define APIC_LVT_ERROR 5
#define APIC_LVT_NB 6
/* APIC delivery modes */
#define APIC_DM_FIXED 0
#define APIC_DM_LOWPRI 1
#define APIC_DM_SMI 2
#define APIC_DM_NMI 4
#define APIC_DM_INIT 5
#define APIC_DM_SIPI 6
#define APIC_DM_EXTINT 7
/* APIC destination mode */
#define APIC_DESTMODE_FLAT 0xf
#define APIC_DESTMODE_CLUSTER 1
#define APIC_TRIGGER_EDGE 0
#define APIC_TRIGGER_LEVEL 1
#define APIC_LVT_TIMER_PERIODIC (1<<17)
#define APIC_LVT_MASKED (1<<16)
#define APIC_LVT_LEVEL_TRIGGER (1<<15)
#define APIC_LVT_REMOTE_IRR (1<<14)
#define APIC_INPUT_POLARITY (1<<13)
#define APIC_SEND_PENDING (1<<12)
#define ESR_ILLEGAL_ADDRESS (1 << 7)
#define APIC_SV_DIRECTED_IO (1<<12)
#define APIC_SV_ENABLE (1<<8)
#define VAPIC_ENABLE_BIT 0
#define VAPIC_ENABLE_MASK (1 << VAPIC_ENABLE_BIT)
#define MAX_APICS 255
typedef struct APICCommonState APICCommonState;
#define TYPE_APIC_COMMON "apic-common"
#define APIC_COMMON(obj) \
OBJECT_CHECK(APICCommonState, (obj), TYPE_APIC_COMMON)
#define APIC_COMMON_CLASS(klass) \
OBJECT_CLASS_CHECK(APICCommonClass, (klass), TYPE_APIC_COMMON)
#define APIC_COMMON_GET_CLASS(obj) \
OBJECT_GET_CLASS(APICCommonClass, (obj), TYPE_APIC_COMMON)
typedef struct APICCommonClass
{
ICCDeviceClass parent_class;
DeviceRealize realize;
void (*set_base)(APICCommonState *s, uint64_t val);
void (*set_tpr)(APICCommonState *s, uint8_t val);
uint8_t (*get_tpr)(APICCommonState *s);
void (*enable_tpr_reporting)(APICCommonState *s, bool enable);
void (*vapic_base_update)(APICCommonState *s);
void (*external_nmi)(APICCommonState *s);
void (*pre_save)(APICCommonState *s);
void (*post_load)(APICCommonState *s);
} APICCommonClass;
struct APICCommonState {
ICCDevice busdev;
MemoryRegion io_memory;
X86CPU *cpu;
uint32_t apicbase;
uint8_t id;
uint8_t arb_id;
uint8_t tpr;
uint32_t spurious_vec;
uint8_t log_dest;
uint8_t dest_mode;
uint32_t isr[8]; /* in service register */
uint32_t tmr[8]; /* trigger mode register */
uint32_t irr[8]; /* interrupt request register */
uint32_t lvt[APIC_LVT_NB];
uint32_t esr; /* error register */
uint32_t icr[2];
uint32_t divide_conf;
int count_shift;
uint32_t initial_count;
int64_t initial_count_load_time;
int64_t next_time;
int idx;
QEMUTimer *timer;
int64_t timer_expiry;
int sipi_vector;
int wait_for_sipi;
uint32_t vapic_control;
DeviceState *vapic;
hwaddr vapic_paddr; /* note: persistence via kvmvapic */
};
typedef struct VAPICState {
uint8_t tpr;
uint8_t isr;
uint8_t zero;
uint8_t irr;
uint8_t enabled;
} QEMU_PACKED VAPICState;
extern bool apic_report_tpr_access;
void apic_report_irq_delivered(int delivered);
bool apic_next_timer(APICCommonState *s, int64_t current_time);
void apic_enable_tpr_access_reporting(DeviceState *d, bool enable);
void apic_enable_vapic(DeviceState *d, hwaddr paddr);
void vapic_report_tpr_access(DeviceState *dev, CPUState *cpu, target_ulong ip,
TPRAccess access);
#endif /* !QEMU_APIC_INTERNAL_H */
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