xref: /openbmc/qemu/include/hw/xen/xen.h (revision a719a27c)
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 void xen_cmos_set_s3_resume(void *opaque, int irq, int level);
36 
37 qemu_irq *xen_interrupt_controller_init(void);
38 
39 int xen_init(MachineClass *mc);
40 int xen_hvm_init(MemoryRegion **ram_memory);
41 void xenstore_store_pv_console_info(int i, struct CharDriverState *chr);
42 
43 #if defined(NEED_CPU_H) && !defined(CONFIG_USER_ONLY)
44 void xen_ram_alloc(ram_addr_t ram_addr, ram_addr_t size,
45                    struct MemoryRegion *mr);
46 void xen_modified_memory(ram_addr_t start, ram_addr_t length);
47 #endif
48 
49 void xen_register_framebuffer(struct MemoryRegion *mr);
50 
51 #if defined(CONFIG_XEN) && CONFIG_XEN_CTRL_INTERFACE_VERSION < 400
52 #  define HVM_MAX_VCPUS 32
53 #endif
54 
55 #endif /* QEMU_HW_XEN_H */
56