From: Philippe Mathieu-Daudé <philmd@linaro.org>
Date: Tue, 30 Sep 2025 08:14:35 +0000 (+0200)
Subject: system/physmem: Avoid cpu_physical_memory_rw when is_write is constant
X-Git-Tag: v10.2.0-rc1~73^2~21
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=5b7502234c7ede51ab6e684b6abc64d5fee3c1a1;p=thirdparty%2Fqemu.git

system/physmem: Avoid cpu_physical_memory_rw when is_write is constant

Following the mechanical changes of commit adeefe01671 ("Avoid
cpu_physical_memory_rw() with a constant is_write argument"),
replace:

 - cpu_physical_memory_rw(, is_write=false) -> address_space_read()
 - cpu_physical_memory_rw(, is_write=true)  -> address_space_write()

Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20251002084203.63899-15-philmd@linaro.org>
---

diff --git a/scripts/coccinelle/exec_rw_const.cocci b/scripts/coccinelle/exec_rw_const.cocci
index 1a202969519..35ab79e6d74 100644
--- a/scripts/coccinelle/exec_rw_const.cocci
+++ b/scripts/coccinelle/exec_rw_const.cocci
@@ -62,18 +62,6 @@ symbol true, false;
 + address_space_write(E1, E2, E3, E4, E5)
 )
 
-// Avoid uses of cpu_physical_memory_rw() with a constant is_write argument.
-@@
-expression E1, E2, E3;
-@@
-(
-- cpu_physical_memory_rw(E1, E2, E3, false)
-+ cpu_physical_memory_read(E1, E2, E3)
-|
-- cpu_physical_memory_rw(E1, E2, E3, true)
-+ cpu_physical_memory_write(E1, E2, E3)
-)
-
 // Remove useless cast
 @@
 expression E1, E2, E3, E4, E5, E6;
diff --git a/system/physmem.c b/system/physmem.c
index 4dc66ac2c7b..8d65b4c125f 100644
--- a/system/physmem.c
+++ b/system/physmem.c
@@ -3188,12 +3188,14 @@ void cpu_physical_memory_rw(hwaddr addr, void *buf,
 
 void cpu_physical_memory_read(hwaddr addr, void *buf, hwaddr len)
 {
-    cpu_physical_memory_rw(addr, buf, len, false);
+    address_space_read(&address_space_memory, addr,
+                       MEMTXATTRS_UNSPECIFIED, buf, len);
 }
 
 void cpu_physical_memory_write(hwaddr addr, const void *buf, hwaddr len)
 {
-    cpu_physical_memory_rw(addr, (void *)buf, len, true);
+    address_space_write(&address_space_memory, addr,
+                        MEMTXATTRS_UNSPECIFIED, buf, len);
 }
 
 /* used for ROM loading : can write in RAM and ROM */