target/i386: Use explicit little-endian LD/ST API

The x86 architecture uses little endianness. Directly use
the little-endian LD/ST API.

Mechanical change running:

  $ for a in uw w l q; do \
      sed -i -e "s/ld${a}_p(/ld${a}_le_p(/" \
        $(git grep -wlE '(ld|st)u?[wlq]_p' target/i386/);
    done

Coding style adapted manually.

Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20260204204103.46343-2-philmd@linaro.org>

target/i386/helper.c

@@ -669,7 +669,7 @@ uint32_t x86_lduw_phys(CPUState *cs, hwaddr addr)
     MemTxAttrs attrs = cpu_get_mem_attrs(env);
     AddressSpace *as = cpu_addressspace(cs, attrs);
 
-    return address_space_lduw(as, addr, attrs, NULL);
+    return address_space_lduw_le(as, addr, attrs, NULL);
 }
 
 uint32_t x86_ldl_phys(CPUState *cs, hwaddr addr)
@@ -679,7 +679,7 @@ uint32_t x86_ldl_phys(CPUState *cs, hwaddr addr)
     MemTxAttrs attrs = cpu_get_mem_attrs(env);
     AddressSpace *as = cpu_addressspace(cs, attrs);
 
-    return address_space_ldl(as, addr, attrs, NULL);
+    return address_space_ldl_le(as, addr, attrs, NULL);
 }
 
 uint64_t x86_ldq_phys(CPUState *cs, hwaddr addr)
@@ -689,7 +689,7 @@ uint64_t x86_ldq_phys(CPUState *cs, hwaddr addr)
     MemTxAttrs attrs = cpu_get_mem_attrs(env);
     AddressSpace *as = cpu_addressspace(cs, attrs);
 
-    return address_space_ldq(as, addr, attrs, NULL);
+    return address_space_ldq_le(as, addr, attrs, NULL);
 }
 
 void x86_stb_phys(CPUState *cs, hwaddr addr, uint8_t val)
@@ -709,7 +709,7 @@ void x86_stw_phys(CPUState *cs, hwaddr addr, uint32_t val)
     MemTxAttrs attrs = cpu_get_mem_attrs(env);
     AddressSpace *as = cpu_addressspace(cs, attrs);
 
-    address_space_stw(as, addr, val, attrs, NULL);
+    address_space_stw_le(as, addr, val, attrs, NULL);
 }
 
 void x86_stl_phys(CPUState *cs, hwaddr addr, uint32_t val)
@@ -719,7 +719,7 @@ void x86_stl_phys(CPUState *cs, hwaddr addr, uint32_t val)
     MemTxAttrs attrs = cpu_get_mem_attrs(env);
     AddressSpace *as = cpu_addressspace(cs, attrs);
 
-    address_space_stl(as, addr, val, attrs, NULL);
+    address_space_stl_le(as, addr, val, attrs, NULL);
 }
 
 void x86_stq_phys(CPUState *cs, hwaddr addr, uint64_t val)
@@ -729,6 +729,6 @@ void x86_stq_phys(CPUState *cs, hwaddr addr, uint64_t val)
     MemTxAttrs attrs = cpu_get_mem_attrs(env);
     AddressSpace *as = cpu_addressspace(cs, attrs);
 
-    address_space_stq(as, addr, val, attrs, NULL);
+    address_space_stq_le(as, addr, val, attrs, NULL);
 }
 #endif

target/i386/tcg/system/misc_helper.c

@@ -42,26 +42,26 @@ target_ulong helper_inb(CPUX86State *env, uint32_t port)
 
 void helper_outw(CPUX86State *env, uint32_t port, uint32_t data)
 {
-    address_space_stw(&address_space_io, port, data,
+    address_space_stw_le(&address_space_io, port, data,
-                      cpu_get_mem_attrs(env), NULL);
+                         cpu_get_mem_attrs(env), NULL);
 }
 
 target_ulong helper_inw(CPUX86State *env, uint32_t port)
 {
-    return address_space_lduw(&address_space_io, port,
+    return address_space_lduw_le(&address_space_io, port,
-                              cpu_get_mem_attrs(env), NULL);
+                                 cpu_get_mem_attrs(env), NULL);
 }
 
 void helper_outl(CPUX86State *env, uint32_t port, uint32_t data)
 {
-    address_space_stl(&address_space_io, port, data,
+    address_space_stl_le(&address_space_io, port, data,
-                      cpu_get_mem_attrs(env), NULL);
+                         cpu_get_mem_attrs(env), NULL);
 }
 
 target_ulong helper_inl(CPUX86State *env, uint32_t port)
 {
-    return address_space_ldl(&address_space_io, port,
+    return address_space_ldl_le(&address_space_io, port,
-                             cpu_get_mem_attrs(env), NULL);
+                                cpu_get_mem_attrs(env), NULL);
 }
 
 target_ulong helper_read_cr8(CPUX86State *env)