cachepc-qemu

Fork of AMDESE/qemu with changes for cachepc side-channel attack
git clone https://git.sinitax.com/sinitax/cachepc-qemu
Log | Files | Refs | Submodules | LICENSE | sfeed.txt

sysbus.h (3628B)

      1#ifndef HW_SYSBUS_H
      2#define HW_SYSBUS_H
      3
      4/* Devices attached directly to the main system bus.  */
      5
      6#include "hw/qdev-core.h"
      7#include "exec/memory.h"
      8#include "qom/object.h"
      9
     10#define QDEV_MAX_MMIO 32
     11#define QDEV_MAX_PIO 32
     12
     13#define TYPE_SYSTEM_BUS "System"
     14DECLARE_INSTANCE_CHECKER(BusState, SYSTEM_BUS,
     15                         TYPE_SYSTEM_BUS)
     16
     17
     18#define TYPE_SYS_BUS_DEVICE "sys-bus-device"
     19OBJECT_DECLARE_TYPE(SysBusDevice, SysBusDeviceClass,
     20                    SYS_BUS_DEVICE)
     21
     22/**
     23 * SysBusDeviceClass:
     24 *
     25 * SysBusDeviceClass is not overriding #DeviceClass.realize, so derived
     26 * classes overriding it are not required to invoke its implementation.
     27 */
     28
     29#define SYSBUS_DEVICE_GPIO_IRQ "sysbus-irq"
     30
     31struct SysBusDeviceClass {
     32    /*< private >*/
     33    DeviceClass parent_class;
     34
     35    /*
     36     * Let the sysbus device format its own non-PIO, non-MMIO unit address.
     37     *
     38     * Sometimes a class of SysBusDevices has neither MMIO nor PIO resources,
     39     * yet instances of it would like to distinguish themselves, in
     40     * OpenFirmware device paths, from other instances of the same class on the
     41     * sysbus. For that end we expose this callback.
     42     *
     43     * The implementation is not supposed to change *@dev, or incur other
     44     * observable change.
     45     *
     46     * The function returns a dynamically allocated string. On error, NULL
     47     * should be returned; the unit address portion of the OFW node will be
     48     * omitted then. (This is not considered a fatal error.)
     49     */
     50    char *(*explicit_ofw_unit_address)(const SysBusDevice *dev);
     51    void (*connect_irq_notifier)(SysBusDevice *dev, qemu_irq irq);
     52};
     53
     54struct SysBusDevice {
     55    /*< private >*/
     56    DeviceState parent_obj;
     57    /*< public >*/
     58
     59    int num_mmio;
     60    struct {
     61        hwaddr addr;
     62        MemoryRegion *memory;
     63    } mmio[QDEV_MAX_MMIO];
     64    int num_pio;
     65    uint32_t pio[QDEV_MAX_PIO];
     66};
     67
     68typedef void FindSysbusDeviceFunc(SysBusDevice *sbdev, void *opaque);
     69
     70void sysbus_init_mmio(SysBusDevice *dev, MemoryRegion *memory);
     71MemoryRegion *sysbus_mmio_get_region(SysBusDevice *dev, int n);
     72void sysbus_init_irq(SysBusDevice *dev, qemu_irq *p);
     73void sysbus_pass_irq(SysBusDevice *dev, SysBusDevice *target);
     74void sysbus_init_ioports(SysBusDevice *dev, uint32_t ioport, uint32_t size);
     75
     76
     77bool sysbus_has_irq(SysBusDevice *dev, int n);
     78bool sysbus_has_mmio(SysBusDevice *dev, unsigned int n);
     79void sysbus_connect_irq(SysBusDevice *dev, int n, qemu_irq irq);
     80bool sysbus_is_irq_connected(SysBusDevice *dev, int n);
     81qemu_irq sysbus_get_connected_irq(SysBusDevice *dev, int n);
     82void sysbus_mmio_map(SysBusDevice *dev, int n, hwaddr addr);
     83void sysbus_mmio_map_overlap(SysBusDevice *dev, int n, hwaddr addr,
     84                             int priority);
     85void sysbus_mmio_unmap(SysBusDevice *dev, int n);
     86void sysbus_add_io(SysBusDevice *dev, hwaddr addr,
     87                   MemoryRegion *mem);
     88MemoryRegion *sysbus_address_space(SysBusDevice *dev);
     89
     90bool sysbus_realize(SysBusDevice *dev, Error **errp);
     91bool sysbus_realize_and_unref(SysBusDevice *dev, Error **errp);
     92
     93/* Call func for every dynamically created sysbus device in the system */
     94void foreach_dynamic_sysbus_device(FindSysbusDeviceFunc *func, void *opaque);
     95
     96/* Legacy helper function for creating devices.  */
     97DeviceState *sysbus_create_varargs(const char *name,
     98                                 hwaddr addr, ...);
     99
    100static inline DeviceState *sysbus_create_simple(const char *name,
    101                                              hwaddr addr,
    102                                              qemu_irq irq)
    103{
    104    return sysbus_create_varargs(name, addr, irq, NULL);
    105}
    106
    107#endif /* HW_SYSBUS_H */