LXR qemu/hw/xen.h

   1#ifndef QEMU_HW_XEN_H
   2#define QEMU_HW_XEN_H 1
   3/*
   4 * public xen header
   5 *   stuff needed outside xen-*.c, i.e. interfaces to qemu.
   6 *   must not depend on any xen headers being present in
   7 *   /usr/include/xen, so it can be included unconditionally.
   8 */
   9#include <inttypes.h>
  10
  11#include "qemu-common.h"
  12
  13/* xen-machine.c */
  14enum xen_mode {
  15    XEN_EMULATE = 0,  // xen emulation, using xenner (default)
  16    XEN_CREATE,       // create xen domain
  17    XEN_ATTACH        // attach to xen domain created by xend
  18};
  19
  20extern uint32_t xen_domid;
  21extern enum xen_mode xen_mode;
  22
  23extern int xen_allowed;
  24
  25static inline int xen_enabled(void)
  26{
  27#if defined(CONFIG_XEN_BACKEND) && !defined(CONFIG_NO_XEN)
  28    return xen_allowed;
  29#else
  30    return 0;
  31#endif
  32}
  33
  34int xen_pci_slot_get_pirq(PCIDevice *pci_dev, int irq_num);
  35void xen_piix3_set_irq(void *opaque, int irq_num, int level);
  36void xen_piix_pci_write_config_client(uint32_t address, uint32_t val, int len);
  37void xen_hvm_inject_msi(uint64_t addr, uint32_t data);
  38void xen_cmos_set_s3_resume(void *opaque, int irq, int level);
  39
  40qemu_irq *xen_interrupt_controller_init(void);
  41
  42int xen_init(void);
  43int xen_hvm_init(void);
  44void xen_vcpu_init(void);
  45void xenstore_store_pv_console_info(int i, struct CharDriverState *chr);
  46
  47#if defined(NEED_CPU_H) && !defined(CONFIG_USER_ONLY)
  48struct MemoryRegion;
  49void xen_ram_alloc(ram_addr_t ram_addr, ram_addr_t size,
  50                   struct MemoryRegion *mr);
  51#endif
  52
  53struct MemoryRegion;
  54void xen_register_framebuffer(struct MemoryRegion *mr);
  55
  56#if defined(CONFIG_XEN) && CONFIG_XEN_CTRL_INTERFACE_VERSION < 400
  57#  define HVM_MAX_VCPUS 32
  58#endif
  59
  60static inline int xen_msi_support(void)
  61{
  62#if defined(CONFIG_XEN_CTRL_INTERFACE_VERSION) \
  63    && CONFIG_XEN_CTRL_INTERFACE_VERSION >= 420
  64    return xen_enabled();
  65#else
  66    return 0;
  67#endif
  68}
  69
  70#endif /* QEMU_HW_XEN_H */
  71