Release 4.10 arch/x86/kvm/irq.h
/*
* irq.h: in kernel interrupt controller related definitions
* Copyright (c) 2007, Intel Corporation.
*
* This program is free software; you can redistribute it and/or modify it
* under the terms and conditions of the GNU General Public License,
* version 2, as published by the Free Software Foundation.
*
* This program is distributed in the hope 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., 59 Temple
* Place - Suite 330, Boston, MA 02111-1307 USA.
* Authors:
* Yaozu (Eddie) Dong <Eddie.dong@intel.com>
*
*/
#ifndef __IRQ_H
#define __IRQ_H
#include <linux/mm_types.h>
#include <linux/hrtimer.h>
#include <linux/kvm_host.h>
#include <linux/spinlock.h>
#include <kvm/iodev.h>
#include "ioapic.h"
#include "lapic.h"
#define PIC_NUM_PINS 16
#define SELECT_PIC(irq) \
((irq) < 8 ? KVM_IRQCHIP_PIC_MASTER : KVM_IRQCHIP_PIC_SLAVE)
struct kvm;
struct kvm_vcpu;
struct kvm_kpic_state {
u8 last_irr; /* edge detection */
u8 irr; /* interrupt request register */
u8 imr; /* interrupt mask register */
u8 isr; /* interrupt service register */
u8 priority_add; /* highest irq priority */
u8 irq_base;
u8 read_reg_select;
u8 poll;
u8 special_mask;
u8 init_state;
u8 auto_eoi;
u8 rotate_on_auto_eoi;
u8 special_fully_nested_mode;
u8 init4; /* true if 4 byte init */
u8 elcr; /* PIIX edge/trigger selection */
u8 elcr_mask;
u8 isr_ack; /* interrupt ack detection */
struct kvm_pic *pics_state;
};
struct kvm_pic {
spinlock_t lock;
bool wakeup_needed;
unsigned pending_acks;
struct kvm *kvm;
struct kvm_kpic_state pics[2]; /* 0 is master pic, 1 is slave pic */
int output; /* intr from master PIC */
struct kvm_io_device dev_master;
struct kvm_io_device dev_slave;
struct kvm_io_device dev_eclr;
void (*ack_notifier)(void *opaque, int irq);
unsigned long irq_states[PIC_NUM_PINS];
};
struct kvm_pic *kvm_create_pic(struct kvm *kvm);
void kvm_destroy_pic(struct kvm_pic *vpic);
int kvm_pic_read_irq(struct kvm *kvm);
void kvm_pic_update_irq(struct kvm_pic *s);
static inline struct kvm_pic *pic_irqchip(struct kvm *kvm)
{
return kvm->arch.vpic;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| xiantao zhang | xiantao zhang | 21 | 100.00% | 2 | 100.00% |
| Total | 21 | 100.00% | 2 | 100.00% |
static inline int pic_in_kernel(struct kvm *kvm)
{
int ret;
ret = (pic_irqchip(kvm) != NULL);
return ret;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| steve rutherford | steve rutherford | 29 | 100.00% | 1 | 100.00% |
| Total | 29 | 100.00% | 1 | 100.00% |
static inline int irqchip_split(struct kvm *kvm)
{
return kvm->arch.irqchip_split;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| steve rutherford | steve rutherford | 19 | 100.00% | 1 | 100.00% |
| Total | 19 | 100.00% | 1 | 100.00% |
static inline int irqchip_in_kernel(struct kvm *kvm)
{
struct kvm_pic *vpic = pic_irqchip(kvm);
bool ret;
ret = (vpic != NULL);
ret |= irqchip_split(kvm);
/* Read vpic before kvm->irq_routing. */
smp_rmb();
return ret;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| steve rutherford | steve rutherford | 19 | 40.43% | 1 | 25.00% |
| xiantao zhang | xiantao zhang | 17 | 36.17% | 1 | 25.00% |
| paolo bonzini | paolo bonzini | 7 | 14.89% | 1 | 25.00% |
| marcelo tosatti | marcelo tosatti | 4 | 8.51% | 1 | 25.00% |
| Total | 47 | 100.00% | 4 | 100.00% |
void kvm_pic_reset(struct kvm_kpic_state *s);
void kvm_inject_pending_timer_irqs(struct kvm_vcpu *vcpu);
void kvm_inject_apic_timer_irqs(struct kvm_vcpu *vcpu);
void kvm_apic_nmi_wd_deliver(struct kvm_vcpu *vcpu);
void __kvm_migrate_apic_timer(struct kvm_vcpu *vcpu);
void __kvm_migrate_pit_timer(struct kvm_vcpu *vcpu);
void __kvm_migrate_timers(struct kvm_vcpu *vcpu);
int apic_has_pending_timer(struct kvm_vcpu *vcpu);
int kvm_setup_default_irq_routing(struct kvm *kvm);
int kvm_setup_empty_irq_routing(struct kvm *kvm);
#endif
Overall Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| eddie dong | eddie dong | 147 | 34.59% | 4 | 12.12% |
| steve rutherford | steve rutherford | 67 | 15.76% | 2 | 6.06% |
| marcelo tosatti | marcelo tosatti | 55 | 12.94% | 5 | 15.15% |
| xiantao zhang | xiantao zhang | 46 | 10.82% | 3 | 9.09% |
| eric auger | eric auger | 18 | 4.24% | 1 | 3.03% |
| avi kivity | avi kivity | 16 | 3.76% | 4 | 12.12% |
| hollis blanchard | hollis blanchard | 14 | 3.29% | 2 | 6.06% |
| jan kiszka | jan kiszka | 12 | 2.82% | 3 | 9.09% |
| gleb natapov | gleb natapov | 10 | 2.35% | 2 | 6.06% |
| qing he | qing he | 9 | 2.12% | 1 | 3.03% |
| paolo bonzini | paolo bonzini | 9 | 2.12% | 1 | 3.03% |
| sasha levin | sasha levin | 9 | 2.12% | 1 | 3.03% |
| wei yongjun | wei yongjun | 7 | 1.65% | 1 | 3.03% |
| ben-ami yassour | ben-ami yassour | 4 | 0.94% | 1 | 3.03% |
| andre przywara | andre przywara | 1 | 0.24% | 1 | 3.03% |
| michael s. tsirkin | michael s. tsirkin | 1 | 0.24% | 1 | 3.03% |
| Total | 425 | 100.00% | 33 | 100.00% |
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