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[Qemu-devel] [RFC][PATCH 02/14 v7] Add API to check whether a physical a
From: |
Wen Congyang |
Subject: |
[Qemu-devel] [RFC][PATCH 02/14 v7] Add API to check whether a physical address is I/O address |
Date: |
Thu, 01 Mar 2012 10:40:57 +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 | 2 ++
exec.c | 11 +++++++++++
2 files changed, 13 insertions(+), 0 deletions(-)
diff --git a/cpu-common.h b/cpu-common.h
index a40c57d..fde3e5d 100644
--- a/cpu-common.h
+++ b/cpu-common.h
@@ -71,6 +71,8 @@ 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);
+bool cpu_physical_memory_is_io(target_phys_addr_t phys_addr);
+
/* 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 b81677a..2114dd5 100644
--- a/exec.c
+++ b/exec.c
@@ -4435,3 +4435,14 @@ bool virtio_is_big_endian(void)
#undef env
#endif
+
+bool cpu_physical_memory_is_io(target_phys_addr_t phys_addr)
+{
+ ram_addr_t pd;
+ PhysPageDesc p;
+
+ p = phys_page_find(phys_addr >> TARGET_PAGE_BITS);
+ pd = p.phys_offset;
+
+ return !is_ram_rom_romd(pd);
+}
--
1.7.1
- [Qemu-devel] [RFC][PATCH 00/14 v7] introducing a new, dedicated memory dump mechanism, Wen Congyang, 2012/02/29
- [Qemu-devel] [RFC][PATCH 01/14 v7] Add API to create memory mapping list, Wen Congyang, 2012/02/29
- [Qemu-devel] [RFC][PATCH 02/14 v7] Add API to check whether a physical address is I/O address,
Wen Congyang <=
- [Qemu-devel] [RFC][PATCH 03/14 v7] target-i386: implement cpu_get_memory_mapping(), Wen Congyang, 2012/02/29
- [Qemu-devel] [RFC][PATCH 04/14 v7] Add API to get memory mapping, Wen Congyang, 2012/02/29
- [Qemu-devel] [RFC][PATCH 05/14 v7] target-i386: Add API to write elf notes to core file, Wen Congyang, 2012/02/29
- [Qemu-devel] [RFC][PATCH 06/14 v7] target-i386: Add API to write cpu status to core file, Wen Congyang, 2012/02/29
- [Qemu-devel] [RFC][PATCH 07/14 v7] target-i386: add API to get dump info, Wen Congyang, 2012/02/29
- [Qemu-devel] [RFC][PATCH 08/14 v7] make gdb_id() generally avialable, Wen Congyang, 2012/02/29
- [Qemu-devel] [RFC][PATCH 09/14 v7] introduce a new monitor command 'dump' to dump guest's memory, Wen Congyang, 2012/02/29
- [Qemu-devel] [RFC][PATCH 10/14 v7] support to cancel the current dumping, Wen Congyang, 2012/02/29
- [Qemu-devel] [RFC][PATCH 11/14 v7] support to query dumping status, Wen Congyang, 2012/02/29
- [Qemu-devel] [RFC][PATCH 12/14 v7] run dump at the background, Wen Congyang, 2012/02/29