arch/mips/kvm/interrupt.h

   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
  31 extern char __kvm_mips_vcpu_run_end[];
  32 extern char mips32_exception[], mips32_exceptionEnd[];
  33 extern 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
  40 void kvm_mips_queue_irq(struct kvm_vcpu *vcpu, uint32_t priority);
  41 void kvm_mips_dequeue_irq(struct kvm_vcpu *vcpu, uint32_t priority);
  42 int kvm_mips_pending_timer(struct kvm_vcpu *vcpu);
  43
  44 void kvm_mips_queue_timer_int_cb(struct kvm_vcpu *vcpu);
  45 void kvm_mips_dequeue_timer_int_cb(struct kvm_vcpu *vcpu);
  46 void kvm_mips_queue_io_int_cb(struct kvm_vcpu *vcpu,
  47                               struct kvm_mips_interrupt *irq);
  48 void kvm_mips_dequeue_io_int_cb(struct kvm_vcpu *vcpu,
  49                                 struct kvm_mips_interrupt *irq);
  50 int kvm_mips_irq_deliver_cb(struct kvm_vcpu *vcpu, unsigned int priority,
  51                             uint32_t cause);
  52 int kvm_mips_irq_clear_cb(struct kvm_vcpu *vcpu, unsigned int priority,
  53                           uint32_t cause);
  54 void kvm_mips_deliver_interrupts(struct kvm_vcpu *vcpu, uint32_t cause);