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[Qemu-devel] [PATCH 02/12 v14] Add API to check whether a physical addre
From: |
Wen Congyang |
Subject: |
[Qemu-devel] [PATCH 02/12 v14] Add API to check whether a physical address is I/O address |
Date: |
Tue, 24 Apr 2012 12:01:35 +0800 |
User-agent: |
Mozilla/5.0 (X11; U; Linux x86_64; en-US; rv:1.9.1.9) Gecko/20100413 Fedora/3.0.4-2.fc13 Thunderbird/3.0.4 |
This API will be used in the following patch.
Signed-off-by: Wen Congyang <address@hidden>
---
cpu-common.h | 4 ++++
exec.c | 11 +++++++++++
2 files changed, 15 insertions(+), 0 deletions(-)
diff --git a/cpu-common.h b/cpu-common.h
index dca5175..1fe3280 100644
--- a/cpu-common.h
+++ b/cpu-common.h
@@ -71,6 +71,10 @@ void cpu_physical_memory_unmap(void *buffer,
target_phys_addr_t len,
void *cpu_register_map_client(void *opaque, void (*callback)(void *opaque));
void cpu_unregister_map_client(void *cookie);
+#ifndef CONFIG_USER_ONLY
+bool cpu_physical_memory_is_io(target_phys_addr_t phys_addr);
+#endif
+
/* Coalesced MMIO regions are areas where write operations can be reordered.
* This usually implies that write operations are side-effect free. This
allows
* batching which can make a major impact on performance when using
diff --git a/exec.c b/exec.c
index 77d6866..eb6491b 100644
--- a/exec.c
+++ b/exec.c
@@ -4662,3 +4662,14 @@ bool virtio_is_big_endian(void)
#undef env
#endif
+
+#ifndef CONFIG_USER_ONLY
+bool cpu_physical_memory_is_io(target_phys_addr_t phys_addr)
+{
+ MemoryRegionSection *section;
+
+ section = phys_page_find(phys_addr >> TARGET_PAGE_BITS);
+
+ return !is_ram_rom_romd(section);
+}
+#endif
--
1.7.1
- [Qemu-devel] [PATCH 00/12 v14] introducing a new, dedicated guest memory dump mechanism, Wen Congyang, 2012/04/23
- [Qemu-devel] [PATCH 01/12 v14] Add API to create memory mapping list, Wen Congyang, 2012/04/23
- [Qemu-devel] [PATCH 02/12 v14] Add API to check whether a physical address is I/O address,
Wen Congyang <=
- [Qemu-devel] [PATCH 03/12 v14] implement cpu_get_memory_mapping(), Wen Congyang, 2012/04/23
- [Qemu-devel] [PATCH 04/12 v14] Add API to check whether paging mode is enabled, Wen Congyang, 2012/04/24
- [Qemu-devel] [PATCH 05/12 v14] Add API to get memory mapping, Wen Congyang, 2012/04/24
- [Qemu-devel] [PATCH 06/12 v14] Add API to get memory mapping without do paging, Wen Congyang, 2012/04/24
- [Qemu-devel] [PATCH 07/12 v14] target-i386: Add API to write elf notes to core file, Wen Congyang, 2012/04/24
- [Qemu-devel] [PATCH 08/12 v14] target-i386: Add API to write cpu status to core file, Wen Congyang, 2012/04/24
- [Qemu-devel] [PATCH 09/12 v14] target-i386: add API to get dump info, Wen Congyang, 2012/04/24
- [Qemu-devel] [PATCH 10/12 v14] target-i386: Add API to get note's size, Wen Congyang, 2012/04/24
- [Qemu-devel] [PATCH 11/12 v14] make gdb_id() generally avialable and rename it to cpu_index(), Wen Congyang, 2012/04/24
- [Qemu-devel] [PATCH 12/12 v14] introduce a new monitor command 'dump-guest-memory' to dump guest's memory, Wen Congyang, 2012/04/24