[Qemu-devel] [PATCH v2 8/8] disas: Remove monitor_disas_is_physical

Richard Henderson posted 8 patches 8 years, 4 months ago
There is a newer version of this series
[Qemu-devel] [PATCH v2 8/8] disas: Remove monitor_disas_is_physical
Posted by Richard Henderson 8 years, 4 months ago
Even though there is only one monitor, and thus no race on this
global data object, there is also no point in having it.  We can
just as well record the decision in the read_memory_function that
we select.

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
---
 disas.c | 18 +++++-------------
 1 file changed, 5 insertions(+), 13 deletions(-)

diff --git a/disas.c b/disas.c
index b4e4fc409e..c3606b3986 100644
--- a/disas.c
+++ b/disas.c
@@ -513,19 +513,11 @@ const char *lookup_symbol(target_ulong orig_addr)
 
 #include "monitor/monitor.h"
 
-static int monitor_disas_is_physical;
-
 static int
-monitor_read_memory (bfd_vma memaddr, bfd_byte *myaddr, int length,
-                     struct disassemble_info *info)
+physical_read_memory (bfd_vma memaddr, bfd_byte *myaddr, int length,
+                      struct disassemble_info *info)
 {
-    CPUDebug *s = container_of(info, CPUDebug, info);
-
-    if (monitor_disas_is_physical) {
-        cpu_physical_memory_read(memaddr, myaddr, length);
-    } else {
-        cpu_memory_rw_debug(s->cpu, memaddr, myaddr, length, 0);
-    }
+    cpu_physical_memory_read(memaddr, myaddr, length);
     return 0;
 }
 
@@ -540,8 +532,8 @@ void monitor_disas(Monitor *mon, CPUState *cpu,
     INIT_DISASSEMBLE_INFO(s.info, (FILE *)mon, monitor_fprintf);
 
     s.cpu = cpu;
-    monitor_disas_is_physical = is_physical;
-    s.info.read_memory_func = monitor_read_memory;
+    s.info.read_memory_func
+        = (is_physical ? physical_read_memory : target_read_memory);
     s.info.print_address_func = generic_print_address;
     s.info.buffer_vma = pc;
     s.info.cap_arch = -1;
-- 
2.13.5


Re: [Qemu-devel] [PATCH v2 8/8] disas: Remove monitor_disas_is_physical
Posted by Alex Bennée 8 years, 4 months ago
Richard Henderson <richard.henderson@linaro.org> writes:

> Even though there is only one monitor, and thus no race on this
> global data object, there is also no point in having it.  We can
> just as well record the decision in the read_memory_function that
> we select.
>
> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

Reviewed-by: Alex Bennée <alex.bennee@linaro.org>

> ---
>  disas.c | 18 +++++-------------
>  1 file changed, 5 insertions(+), 13 deletions(-)
>
> diff --git a/disas.c b/disas.c
> index b4e4fc409e..c3606b3986 100644
> --- a/disas.c
> +++ b/disas.c
> @@ -513,19 +513,11 @@ const char *lookup_symbol(target_ulong orig_addr)
>
>  #include "monitor/monitor.h"
>
> -static int monitor_disas_is_physical;
> -
>  static int
> -monitor_read_memory (bfd_vma memaddr, bfd_byte *myaddr, int length,
> -                     struct disassemble_info *info)
> +physical_read_memory (bfd_vma memaddr, bfd_byte *myaddr, int length,
> +                      struct disassemble_info *info)
>  {
> -    CPUDebug *s = container_of(info, CPUDebug, info);
> -
> -    if (monitor_disas_is_physical) {
> -        cpu_physical_memory_read(memaddr, myaddr, length);
> -    } else {
> -        cpu_memory_rw_debug(s->cpu, memaddr, myaddr, length, 0);
> -    }
> +    cpu_physical_memory_read(memaddr, myaddr, length);
>      return 0;
>  }
>
> @@ -540,8 +532,8 @@ void monitor_disas(Monitor *mon, CPUState *cpu,
>      INIT_DISASSEMBLE_INFO(s.info, (FILE *)mon, monitor_fprintf);
>
>      s.cpu = cpu;
> -    monitor_disas_is_physical = is_physical;
> -    s.info.read_memory_func = monitor_read_memory;
> +    s.info.read_memory_func
> +        = (is_physical ? physical_read_memory : target_read_memory);
>      s.info.print_address_func = generic_print_address;
>      s.info.buffer_vma = pc;
>      s.info.cap_arch = -1;


--
Alex Bennée