1 /*
2 * QEMU Xen support
3 *
4 * This work is licensed under the terms of the GNU GPL, version 2 or later.
5 * See the COPYING file in the top-level directory.
6 */
7
8 /* header to be included in non-Xen-specific code */
9
10 #ifndef SYSEMU_XEN_H
11 #define SYSEMU_XEN_H
12
13 #ifdef CONFIG_USER_ONLY
14 #error Cannot include sysemu/xen.h from user emulation
15 #endif
16
17 #include "exec/cpu-common.h"
18
19 #ifdef COMPILING_PER_TARGET
20 # ifdef CONFIG_XEN
21 # define CONFIG_XEN_IS_POSSIBLE
22 # endif
23 #else
24 # define CONFIG_XEN_IS_POSSIBLE
25 #endif /* COMPILING_PER_TARGET */
26
27 #ifdef CONFIG_XEN_IS_POSSIBLE
28
29 extern bool xen_allowed;
30
31 #define xen_enabled() (xen_allowed)
32
33 void xen_hvm_modified_memory(ram_addr_t start, ram_addr_t length);
34 void xen_ram_alloc(ram_addr_t ram_addr, ram_addr_t size,
35 struct MemoryRegion *mr, Error **errp);
36
37 #else /* !CONFIG_XEN_IS_POSSIBLE */
38
39 #define xen_enabled() 0
xen_hvm_modified_memory(ram_addr_t start,ram_addr_t length)40 static inline void xen_hvm_modified_memory(ram_addr_t start, ram_addr_t length)
41 {
42 /* nothing */
43 }
xen_ram_alloc(ram_addr_t ram_addr,ram_addr_t size,MemoryRegion * mr,Error ** errp)44 static inline void xen_ram_alloc(ram_addr_t ram_addr, ram_addr_t size,
45 MemoryRegion *mr, Error **errp)
46 {
47 g_assert_not_reached();
48 }
49
50 #endif /* CONFIG_XEN_IS_POSSIBLE */
51
52 bool xen_mr_is_memory(MemoryRegion *mr);
53 #endif
54