FreeBSD/Linux Kernel Cross Reference
sys/amd64/vmm/vmm_lapic.h

     /*-
      * Copyright (c) 2011 NetApp, Inc.
      * All rights reserved.
      *
      * Redistribution and use in source and binary forms, with or without
      * modification, are permitted provided that the following conditions
      * are met:
      * 1. Redistributions of source code must retain the above copyright
      *    notice, this list of conditions and the following disclaimer.
     * 2. Redistributions in binary form must reproduce the above copyright
     *    notice, this list of conditions and the following disclaimer in the
     *    documentation and/or other materials provided with the distribution.
     *
     * THIS SOFTWARE IS PROVIDED BY NETAPP, INC ``AS IS'' AND
     * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     * ARE DISCLAIMED.  IN NO EVENT SHALL NETAPP, INC OR CONTRIBUTORS BE LIABLE
     * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     * SUCH DAMAGE.
     *
     * $FreeBSD: releng/11.0/sys/amd64/vmm/vmm_lapic.h 259863 2013-12-25 06:46:31Z neel $
     */
    
    #ifndef _VMM_LAPIC_H_
    #define _VMM_LAPIC_H_
    
    struct vm;
    
    boolean_t lapic_msr(u_int num);
    int     lapic_rdmsr(struct vm *vm, int cpu, u_int msr, uint64_t *rval,
                bool *retu);
    int     lapic_wrmsr(struct vm *vm, int cpu, u_int msr, uint64_t wval,
                bool *retu);
    
    int     lapic_mmio_read(void *vm, int cpu, uint64_t gpa,
                            uint64_t *rval, int size, void *arg);
    int     lapic_mmio_write(void *vm, int cpu, uint64_t gpa,
                             uint64_t wval, int size, void *arg);
    
    /*
     * Signals to the LAPIC that an interrupt at 'vector' needs to be generated
     * to the 'cpu', the state is recorded in IRR.
     */
    int     lapic_set_intr(struct vm *vm, int cpu, int vector, bool trig);
    
    #define LAPIC_TRIG_LEVEL        true
    #define LAPIC_TRIG_EDGE         false
    static __inline int
    lapic_intr_level(struct vm *vm, int cpu, int vector)
    {
    
            return (lapic_set_intr(vm, cpu, vector, LAPIC_TRIG_LEVEL));
    }
    
    static __inline int
    lapic_intr_edge(struct vm *vm, int cpu, int vector)
    {
    
            return (lapic_set_intr(vm, cpu, vector, LAPIC_TRIG_EDGE));
    }
    
    /*
     * Triggers the LAPIC local interrupt (LVT) 'vector' on 'cpu'.  'cpu' can
     * be set to -1 to trigger the interrupt on all CPUs.
     */
    int     lapic_set_local_intr(struct vm *vm, int cpu, int vector);
    
    int     lapic_intr_msi(struct vm *vm, uint64_t addr, uint64_t msg);
    
    #endif

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