diff mbox series

[for-4.0,1/3] disas.c: Use address_space_read() to read memory

Message ID 20181122112947.7586-2-peter.maydell@linaro.org
State Superseded
Headers show
Series Avoid cpu_physical_memory_read() in generic code | expand

Commit Message

Peter Maydell Nov. 22, 2018, 11:29 a.m. UTC
Currently disas.c reads physical memory using
cpu_physical_memory_read(). This effectively hard-codes
assuming that all CPUs have the same view of physical
memory. Switch to address_space_read() instead, which
lets us use the AddressSpace for the CPU we're
disassembling for.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>

---
 disas.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

-- 
2.19.1

Comments

Philippe Mathieu-Daudé Nov. 22, 2018, 12:21 p.m. UTC | #1
On 22/11/18 12:29, Peter Maydell wrote:
> Currently disas.c reads physical memory using

> cpu_physical_memory_read(). This effectively hard-codes

> assuming that all CPUs have the same view of physical

> memory. Switch to address_space_read() instead, which

> lets us use the AddressSpace for the CPU we're

> disassembling for.

> 

> Signed-off-by: Peter Maydell <peter.maydell@linaro.org>


Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>


> ---

>  disas.c | 5 ++++-

>  1 file changed, 4 insertions(+), 1 deletion(-)

> 

> diff --git a/disas.c b/disas.c

> index 5325b7e6be6..f9c517b3588 100644

> --- a/disas.c

> +++ b/disas.c

> @@ -588,7 +588,10 @@ static int

>  physical_read_memory(bfd_vma memaddr, bfd_byte *myaddr, int length,

>                       struct disassemble_info *info)

>  {

> -    cpu_physical_memory_read(memaddr, myaddr, length);

> +    CPUDebug *s = container_of(info, CPUDebug, info);

> +

> +    address_space_read(s->cpu->as, memaddr, MEMTXATTRS_UNSPECIFIED,

> +                       myaddr, length);

>      return 0;

>  }

>  

>
diff mbox series

Patch

diff --git a/disas.c b/disas.c
index 5325b7e6be6..f9c517b3588 100644
--- a/disas.c
+++ b/disas.c
@@ -588,7 +588,10 @@  static int
 physical_read_memory(bfd_vma memaddr, bfd_byte *myaddr, int length,
                      struct disassemble_info *info)
 {
-    cpu_physical_memory_read(memaddr, myaddr, length);
+    CPUDebug *s = container_of(info, CPUDebug, info);
+
+    address_space_read(s->cpu->as, memaddr, MEMTXATTRS_UNSPECIFIED,
+                       myaddr, length);
     return 0;
 }