File: xen.h

package info (click to toggle)
qemu-kvm 1.1.2%2Bdfsg-6%2Bdeb7u12
  • links: PTS, VCS
  • area: main
  • in suites: wheezy
  • size: 43,848 kB
  • sloc: ansic: 606,321; asm: 10,684; sh: 6,663; perl: 4,223; python: 3,802; makefile: 1,076; objc: 843; xml: 409
file content (70 lines) | stat: -rw-r--r-- 1,845 bytes parent folder | download | duplicates (2)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
#ifndef QEMU_HW_XEN_H
#define QEMU_HW_XEN_H 1
/*
 * public xen header
 *   stuff needed outside xen-*.c, i.e. interfaces to qemu.
 *   must not depend on any xen headers being present in
 *   /usr/include/xen, so it can be included unconditionally.
 */
#include <inttypes.h>

#include "qemu-common.h"

/* xen-machine.c */
enum xen_mode {
    XEN_EMULATE = 0,  // xen emulation, using xenner (default)
    XEN_CREATE,       // create xen domain
    XEN_ATTACH        // attach to xen domain created by xend
};

extern uint32_t xen_domid;
extern enum xen_mode xen_mode;

extern int xen_allowed;

static inline int xen_enabled(void)
{
#if defined(CONFIG_XEN_BACKEND) && !defined(CONFIG_NO_XEN)
    return xen_allowed;
#else
    return 0;
#endif
}

int xen_pci_slot_get_pirq(PCIDevice *pci_dev, int irq_num);
void xen_piix3_set_irq(void *opaque, int irq_num, int level);
void xen_piix_pci_write_config_client(uint32_t address, uint32_t val, int len);
void xen_hvm_inject_msi(uint64_t addr, uint32_t data);
void xen_cmos_set_s3_resume(void *opaque, int irq, int level);

qemu_irq *xen_interrupt_controller_init(void);

int xen_init(void);
int xen_hvm_init(void);
void xen_vcpu_init(void);
void xenstore_store_pv_console_info(int i, struct CharDriverState *chr);

#if defined(NEED_CPU_H) && !defined(CONFIG_USER_ONLY)
struct MemoryRegion;
void xen_ram_alloc(ram_addr_t ram_addr, ram_addr_t size,
                   struct MemoryRegion *mr);
#endif

struct MemoryRegion;
void xen_register_framebuffer(struct MemoryRegion *mr);

#if defined(CONFIG_XEN) && CONFIG_XEN_CTRL_INTERFACE_VERSION < 400
#  define HVM_MAX_VCPUS 32
#endif

static inline int xen_msi_support(void)
{
#if defined(CONFIG_XEN_CTRL_INTERFACE_VERSION) \
    && CONFIG_XEN_CTRL_INTERFACE_VERSION >= 420
    return xen_enabled();
#else
    return 0;
#endif
}

#endif /* QEMU_HW_XEN_H */