xref: /openbmc/qemu/include/hw/xen/xen.h (revision da34e65c)
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 
10 #include "hw/irq.h"
11 #include "qemu-common.h"
12 #include "qemu/typedefs.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 int xen_is_pirq_msi(uint32_t msi_data);
36 
37 qemu_irq *xen_interrupt_controller_init(void);
38 
39 void xenstore_store_pv_console_info(int i, struct CharDriverState *chr);
40 
41 #if defined(NEED_CPU_H) && !defined(CONFIG_USER_ONLY)
42 void xen_hvm_init(PCMachineState *pcms, MemoryRegion **ram_memory);
43 void xen_ram_alloc(ram_addr_t ram_addr, ram_addr_t size,
44                    struct MemoryRegion *mr, Error **errp);
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 #endif /* QEMU_HW_XEN_H */
51