xref: /openbmc/qemu/include/hw/xen/xen.h (revision 3ae8a100)
1 #ifndef QEMU_HW_XEN_H
2 #define QEMU_HW_XEN_H
3 
4 /*
5  * public xen header
6  *   stuff needed outside xen-*.c, i.e. interfaces to qemu.
7  *   must not depend on any xen headers being present in
8  *   /usr/include/xen, so it can be included unconditionally.
9  */
10 
11 #include "qemu-common.h"
12 #include "exec/cpu-common.h"
13 #include "hw/irq.h"
14 
15 /* xen-machine.c */
16 enum xen_mode {
17     XEN_EMULATE = 0,  // xen emulation, using xenner (default)
18     XEN_CREATE,       // create xen domain
19     XEN_ATTACH        // attach to xen domain created by xend
20 };
21 
22 extern uint32_t xen_domid;
23 extern enum xen_mode xen_mode;
24 extern bool xen_domid_restrict;
25 
26 extern bool xen_allowed;
27 
28 static inline bool xen_enabled(void)
29 {
30     return xen_allowed;
31 }
32 
33 int xen_pci_slot_get_pirq(PCIDevice *pci_dev, int irq_num);
34 void xen_piix3_set_irq(void *opaque, int irq_num, int level);
35 void xen_piix_pci_write_config_client(uint32_t address, uint32_t val, int len);
36 void xen_hvm_inject_msi(uint64_t addr, uint32_t data);
37 int xen_is_pirq_msi(uint32_t msi_data);
38 
39 qemu_irq *xen_interrupt_controller_init(void);
40 
41 void xenstore_store_pv_console_info(int i, struct Chardev *chr);
42 
43 void xen_hvm_init(PCMachineState *pcms, MemoryRegion **ram_memory);
44 
45 void xen_ram_alloc(ram_addr_t ram_addr, ram_addr_t size,
46                    struct MemoryRegion *mr, Error **errp);
47 void xen_hvm_modified_memory(ram_addr_t start, ram_addr_t length);
48 
49 void xen_register_framebuffer(struct MemoryRegion *mr);
50 
51 #endif /* QEMU_HW_XEN_H */
52