diff options
Diffstat (limited to 'arch/mips/kvm/interrupt.h')
-rw-r--r-- | arch/mips/kvm/interrupt.h | 59 |
1 files changed, 59 insertions, 0 deletions
diff --git a/arch/mips/kvm/interrupt.h b/arch/mips/kvm/interrupt.h new file mode 100644 index 000000000..c3e878ca3 --- /dev/null +++ b/arch/mips/kvm/interrupt.h @@ -0,0 +1,59 @@ +/* + * This file is subject to the terms and conditions of the GNU General Public + * License. See the file "COPYING" in the main directory of this archive + * for more details. + * + * KVM/MIPS: Interrupts + * Copyright (C) 2012 MIPS Technologies, Inc. All rights reserved. + * Authors: Sanjay Lal <sanjayl@kymasys.com> + */ + +/* + * MIPS Exception Priorities, exceptions (including interrupts) are queued up + * for the guest in the order specified by their priorities + */ + +#define MIPS_EXC_RESET 0 +#define MIPS_EXC_SRESET 1 +#define MIPS_EXC_DEBUG_ST 2 +#define MIPS_EXC_DEBUG 3 +#define MIPS_EXC_DDB 4 +#define MIPS_EXC_NMI 5 +#define MIPS_EXC_MCHK 6 +#define MIPS_EXC_INT_TIMER 7 +#define MIPS_EXC_INT_IO_1 8 +#define MIPS_EXC_INT_IO_2 9 +#define MIPS_EXC_EXECUTE 10 +#define MIPS_EXC_INT_IPI_1 11 +#define MIPS_EXC_INT_IPI_2 12 +#define MIPS_EXC_MAX 13 +/* XXXSL More to follow */ + +#define C_TI (_ULCAST_(1) << 30) + +#ifdef CONFIG_KVM_MIPS_VZ +#define KVM_MIPS_IRQ_DELIVER_ALL_AT_ONCE (1) +#define KVM_MIPS_IRQ_CLEAR_ALL_AT_ONCE (1) +#else +#define KVM_MIPS_IRQ_DELIVER_ALL_AT_ONCE (0) +#define KVM_MIPS_IRQ_CLEAR_ALL_AT_ONCE (0) +#endif + +extern u32 *kvm_priority_to_irq; +u32 kvm_irq_to_priority(u32 irq); + +void kvm_mips_queue_irq(struct kvm_vcpu *vcpu, unsigned int priority); +void kvm_mips_dequeue_irq(struct kvm_vcpu *vcpu, unsigned int priority); +int kvm_mips_pending_timer(struct kvm_vcpu *vcpu); + +void kvm_mips_queue_timer_int_cb(struct kvm_vcpu *vcpu); +void kvm_mips_dequeue_timer_int_cb(struct kvm_vcpu *vcpu); +void kvm_mips_queue_io_int_cb(struct kvm_vcpu *vcpu, + struct kvm_mips_interrupt *irq); +void kvm_mips_dequeue_io_int_cb(struct kvm_vcpu *vcpu, + struct kvm_mips_interrupt *irq); +int kvm_mips_irq_deliver_cb(struct kvm_vcpu *vcpu, unsigned int priority, + u32 cause); +int kvm_mips_irq_clear_cb(struct kvm_vcpu *vcpu, unsigned int priority, + u32 cause); +void kvm_mips_deliver_interrupts(struct kvm_vcpu *vcpu, u32 cause); |