This API will be used in the following patch. Signed-off-by: Wen Congyang <we...@cn.fujitsu.com> --- cpu-common.h | 1 + exec.c | 20 ++++++++++++++++++++ 2 files changed, 21 insertions(+), 0 deletions(-)
diff --git a/cpu-common.h b/cpu-common.h index 8295e4f..75c01c3 100644 --- a/cpu-common.h +++ b/cpu-common.h @@ -91,6 +91,7 @@ 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 *); diff --git a/exec.c b/exec.c index 32782b4..cf0ae8b 100644 --- a/exec.c +++ b/exec.c @@ -4853,3 +4853,23 @@ 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; +} -- 1.7.1