@@ -123,6 +123,7 @@ struct CPUPhysMemoryClient {
QLIST_ENTRY(CPUPhysMemoryClient) list;
};
+bool is_io_addr(target_phys_addr_t phys_addr);
void cpu_register_phys_memory_client(CPUPhysMemoryClient *);
void cpu_unregister_phys_memory_client(CPUPhysMemoryClient *);
@@ -4786,3 +4786,23 @@ void dump_exec_info(FILE *f, fprintf_function cpu_fprintf)
#undef env
#endif
+
+bool is_io_addr(target_phys_addr_t phys_addr)
+{
+ ram_addr_t pd;
+ PhysPageDesc *p;
+
+ p = phys_page_find(phys_addr >> TARGET_PAGE_BITS);
+ if (!p) {
+ pd = IO_MEM_UNASSIGNED;
+ } else {
+ pd = p->phys_offset;
+ }
+
+ if ((pd & ~TARGET_PAGE_MASK) > IO_MEM_ROM && !(pd & IO_MEM_ROMD)) {
+ /* I/O region */
+ return true;
+ }
+
+ return false;
+}
This API will be used in the following patch. Signed-off-by: Wen Congyang <wency@cn.fujitsu.com> --- cpu-common.h | 1 + exec.c | 20 ++++++++++++++++++++ 2 files changed, 21 insertions(+), 0 deletions(-)