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 #ifndef SYSEMU_XEN_H 9 #define SYSEMU_XEN_H 10 11 #include "exec/cpu-common.h" 12 13 #ifdef NEED_CPU_H 14 # ifdef CONFIG_XEN 15 # define CONFIG_XEN_IS_POSSIBLE 16 # endif 17 #else 18 # define CONFIG_XEN_IS_POSSIBLE 19 #endif 20 21 #ifdef CONFIG_XEN_IS_POSSIBLE 22 23 extern bool xen_allowed; 24 25 #define xen_enabled() (xen_allowed) 26 27 #ifndef CONFIG_USER_ONLY 28 void xen_hvm_modified_memory(ram_addr_t start, ram_addr_t length); 29 void xen_ram_alloc(ram_addr_t ram_addr, ram_addr_t size, 30 struct MemoryRegion *mr, Error **errp); 31 #endif 32 33 #else /* !CONFIG_XEN_IS_POSSIBLE */ 34 35 #define xen_enabled() 0 36 #ifndef CONFIG_USER_ONLY 37 static inline void xen_hvm_modified_memory(ram_addr_t start, ram_addr_t length) 38 { 39 /* nothing */ 40 } 41 static inline void xen_ram_alloc(ram_addr_t ram_addr, ram_addr_t size, 42 MemoryRegion *mr, Error **errp) 43 { 44 g_assert_not_reached(); 45 } 46 #endif 47 48 #endif /* CONFIG_XEN_IS_POSSIBLE */ 49 50 #endif 51