Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
tjh.dev
kernel
os
linux
1/*
2 * This file is subject to the terms and conditions of the GNU General Public
3 * License. See the file "COPYING" in the main directory of this archive
4 * for more details.
5 *
6 * KVM/MIPS: Interrupts
7 * Copyright (C) 2012 MIPS Technologies, Inc. All rights reserved.
8 * Authors: Sanjay Lal <sanjayl@kymasys.com>
9 */
10
11/*
12 * MIPS Exception Priorities, exceptions (including interrupts) are queued up
13 * for the guest in the order specified by their priorities
14 */
15
16#define MIPS_EXC_RESET 0
17#define MIPS_EXC_SRESET 1
18#define MIPS_EXC_DEBUG_ST 2
19#define MIPS_EXC_DEBUG 3
20#define MIPS_EXC_DDB 4
21#define MIPS_EXC_NMI 5
22#define MIPS_EXC_MCHK 6
23#define MIPS_EXC_INT_TIMER 7
24#define MIPS_EXC_INT_IO 8
25#define MIPS_EXC_EXECUTE 9
26#define MIPS_EXC_INT_IPI_1 10
27#define MIPS_EXC_INT_IPI_2 11
28#define MIPS_EXC_MAX 12
29/* XXXSL More to follow */
30
31extern char __kvm_mips_vcpu_run_end[];
32extern char mips32_exception[], mips32_exceptionEnd[];
33extern char mips32_GuestException[], mips32_GuestExceptionEnd[];
34
35#define C_TI (_ULCAST_(1) << 30)
36
37#define KVM_MIPS_IRQ_DELIVER_ALL_AT_ONCE (0)
38#define KVM_MIPS_IRQ_CLEAR_ALL_AT_ONCE (0)
39
40void kvm_mips_queue_irq(struct kvm_vcpu *vcpu, uint32_t priority);
41void kvm_mips_dequeue_irq(struct kvm_vcpu *vcpu, uint32_t priority);
42int kvm_mips_pending_timer(struct kvm_vcpu *vcpu);
43
44void kvm_mips_queue_timer_int_cb(struct kvm_vcpu *vcpu);
45void kvm_mips_dequeue_timer_int_cb(struct kvm_vcpu *vcpu);
46void kvm_mips_queue_io_int_cb(struct kvm_vcpu *vcpu,
47 struct kvm_mips_interrupt *irq);
48void kvm_mips_dequeue_io_int_cb(struct kvm_vcpu *vcpu,
49 struct kvm_mips_interrupt *irq);
50int kvm_mips_irq_deliver_cb(struct kvm_vcpu *vcpu, unsigned int priority,
51 uint32_t cause);
52int kvm_mips_irq_clear_cb(struct kvm_vcpu *vcpu, unsigned int priority,
53 uint32_t cause);
54void kvm_mips_deliver_interrupts(struct kvm_vcpu *vcpu, uint32_t cause);