include/hw/xen/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 "hw/irq.h"
  12 #include "qemu-common.h"
  13
  14 /* xen-machine.c */
  15 enum xen_mode {
  16     XEN_EMULATE = 0,  // xen emulation, using xenner (default)
  17     XEN_CREATE,       // create xen domain
  18     XEN_ATTACH        // attach to xen domain created by xend
  19 };
  20
  21 extern uint32_t xen_domid;
  22 extern enum xen_mode xen_mode;
  23
  24 extern bool xen_allowed;
  25
  26 static inline bool xen_enabled(void)
  27 {
  28     return xen_allowed;
  29 }
  30
  31 int xen_pci_slot_get_pirq(PCIDevice *pci_dev, int irq_num);
  32 void xen_piix3_set_irq(void *opaque, int irq_num, int level);
  33 void xen_piix_pci_write_config_client(uint32_t address, uint32_t val, int len);
  34 void xen_hvm_inject_msi(uint64_t addr, uint32_t data);
  35
  36 qemu_irq *xen_interrupt_controller_init(void);
  37
  38 void xenstore_store_pv_console_info(int i, struct CharDriverState *chr);
  39
  40 #if defined(NEED_CPU_H) && !defined(CONFIG_USER_ONLY)
  41 int xen_hvm_init(ram_addr_t *below_4g_mem_size, ram_addr_t *above_4g_mem_size,
  42                  MemoryRegion **ram_memory);
  43 void xen_ram_alloc(ram_addr_t ram_addr, ram_addr_t size,
  44                    struct MemoryRegion *mr);
  45 void xen_modified_memory(ram_addr_t start, ram_addr_t length);
  46 #endif
  47
  48 void xen_register_framebuffer(struct MemoryRegion *mr);
  49
  50 #if defined(CONFIG_XEN) && CONFIG_XEN_CTRL_INTERFACE_VERSION < 400
  51 #  define HVM_MAX_VCPUS 32
  52 #endif
  53
  54 #endif /* QEMU_HW_XEN_H */