LXR qemu/include/qemu/accel.h

   1/* QEMU accelerator interfaces
   2 *
   3 * Copyright (c) 2014 Red Hat Inc
   4 *
   5 * Permission is hereby granted, free of charge, to any person obtaining a copy
   6 * of this software and associated documentation files (the "Software"), to deal
   7 * in the Software without restriction, including without limitation the rights
   8 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
   9 * copies of the Software, and to permit persons to whom the Software is
  10 * furnished to do so, subject to the following conditions:
  11 *
  12 * The above copyright notice and this permission notice shall be included in
  13 * all copies or substantial portions of the Software.
  14 *
  15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  16 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  17 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
  18 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  19 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
  20 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
  21 * THE SOFTWARE.
  22 */
  23#ifndef QEMU_ACCEL_H
  24#define QEMU_ACCEL_H
  25
  26#include "qom/object.h"
  27#include "exec/hwaddr.h"
  28
  29typedef struct AccelState {
  30    /*< private >*/
  31    Object parent_obj;
  32} AccelState;
  33
  34typedef struct AccelClass {
  35    /*< private >*/
  36    ObjectClass parent_class;
  37    /*< public >*/
  38
  39    const char *name;
  40    int (*init_machine)(MachineState *ms);
  41#ifndef CONFIG_USER_ONLY
  42    void (*setup_post)(MachineState *ms, AccelState *accel);
  43    bool (*has_memory)(MachineState *ms, AddressSpace *as,
  44                       hwaddr start_addr, hwaddr size);
  45#endif
  46    bool *allowed;
  47    /*
  48     * Array of global properties that would be applied when specific
  49     * accelerator is chosen. It works like MachineClass.compat_props
  50     * but it's for accelerators not machines. Accelerator-provided
  51     * global properties may be overridden by machine-type
  52     * compat_props or user-provided global properties.
  53     */
  54    GPtrArray *compat_props;
  55} AccelClass;
  56
  57#define TYPE_ACCEL "accel"
  58
  59#define ACCEL_CLASS_SUFFIX  "-" TYPE_ACCEL
  60#define ACCEL_CLASS_NAME(a) (a ACCEL_CLASS_SUFFIX)
  61
  62#define ACCEL_CLASS(klass) \
  63    OBJECT_CLASS_CHECK(AccelClass, (klass), TYPE_ACCEL)
  64#define ACCEL(obj) \
  65    OBJECT_CHECK(AccelState, (obj), TYPE_ACCEL)
  66#define ACCEL_GET_CLASS(obj) \
  67    OBJECT_GET_CLASS(AccelClass, (obj), TYPE_ACCEL)
  68
  69AccelClass *accel_find(const char *opt_name);
  70AccelState *current_accel(void);
  71
  72void accel_init_interfaces(AccelClass *ac);
  73
  74#ifndef CONFIG_USER_ONLY
  75int accel_init_machine(AccelState *accel, MachineState *ms);
  76
  77/* Called just before os_setup_post (ie just before drop OS privs) */
  78void accel_setup_post(MachineState *ms);
  79#endif /* !CONFIG_USER_ONLY */
  80
  81/**
  82 * accel_cpu_instance_init:
  83 * @cpu: The CPU that needs to do accel-specific object initializations.
  84 */
  85void accel_cpu_instance_init(CPUState *cpu);
  86
  87/**
  88 * accel_cpu_realizefn:
  89 * @cpu: The CPU that needs to call accel-specific cpu realization.
  90 * @errp: currently unused.
  91 */
  92bool accel_cpu_realizefn(CPUState *cpu, Error **errp);
  93
  94#endif /* QEMU_ACCEL_H */
  95