[Qemu-devel] [PATCH v2 03/23] target-i386: Use correct memory attributes for ioport accesses

[Paolo Bonzini <pbonzini@redhat.com>]

In order to do this, stop using the cpu_in*/out* helpers, and instead
access address_space_io directly.

cpu_in* and cpu_out* remain for usage in the monitor, in qtest, and
in Xen.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
---
 target-i386/Makefile.objs |  2 --
 target-i386/helper.h      | 12 +++++-----
 target-i386/ioport-user.c | 60 -----------------------------------------------
 target-i386/misc_helper.c | 59 ++++++++++++++++++++++++++++++++++++----------
 target-i386/translate.c   | 12 +++++-----
 5 files changed, 58 insertions(+), 87 deletions(-)
 delete mode 100644 target-i386/ioport-user.c

diff --git a/target-i386/Makefile.objs b/target-i386/Makefile.objs
index 027b94e..7a1df2c 100644
--- a/target-i386/Makefile.objs
+++ b/target-i386/Makefile.objs
@@ -5,5 +5,3 @@ obj-y += gdbstub.o
 obj-$(CONFIG_SOFTMMU) += machine.o arch_memory_mapping.o arch_dump.o
 obj-$(CONFIG_KVM) += kvm.o
 obj-$(call lnot,$(CONFIG_KVM)) += kvm-stub.o
-obj-$(CONFIG_LINUX_USER) += ioport-user.o
-obj-$(CONFIG_BSD_USER) += ioport-user.o
diff --git a/target-i386/helper.h b/target-i386/helper.h
index 8eb0145..74308f4 100644
--- a/target-i386/helper.h
+++ b/target-i386/helper.h
@@ -86,12 +86,12 @@ DEF_HELPER_1(wrmsr, void, env)
 DEF_HELPER_2(check_iob, void, env, i32)
 DEF_HELPER_2(check_iow, void, env, i32)
 DEF_HELPER_2(check_iol, void, env, i32)
-DEF_HELPER_2(outb, void, i32, i32)
-DEF_HELPER_1(inb, tl, i32)
-DEF_HELPER_2(outw, void, i32, i32)
-DEF_HELPER_1(inw, tl, i32)
-DEF_HELPER_2(outl, void, i32, i32)
-DEF_HELPER_1(inl, tl, i32)
+DEF_HELPER_3(outb, void, env, i32, i32)
+DEF_HELPER_2(inb, tl, env, i32)
+DEF_HELPER_3(outw, void, env, i32, i32)
+DEF_HELPER_2(inw, tl, env, i32)
+DEF_HELPER_3(outl, void, env, i32, i32)
+DEF_HELPER_2(inl, tl, env, i32)
 
 DEF_HELPER_3(svm_check_intercept_param, void, env, i32, i64)
 DEF_HELPER_3(vmexit, void, env, i32, i64)
diff --git a/target-i386/ioport-user.c b/target-i386/ioport-user.c
deleted file mode 100644
index f7636e0..0000000
--- a/target-i386/ioport-user.c
+++ /dev/null
@@ -1,60 +0,0 @@
-/*
- *  qemu user ioport functions
- *
- *  Copyright (c) 2003-2008 Fabrice Bellard
- *
- *  This program is free software; you can redistribute it and/or modify
- *  it under the terms of the GNU General Public License as published by
- *  the Free Software Foundation; either version 2 of the License, or
- *  (at your option) any later version.
- *
- *  This program is distributed in the hope that it will be useful,
- *  but WITHOUT ANY WARRANTY; without even the implied warranty of
- *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- *  GNU General Public License for more details.
- *
- *  You should have received a copy of the GNU General Public License
- *  along with this program; if not, see <http://www.gnu.org/licenses/>.
- */
-
-#include <stdio.h>
-
-#include "qemu.h"
-#include "qemu-common.h"
-#include "exec/ioport.h"
-
-void cpu_outb(pio_addr_t addr, uint8_t val)
-{
-    fprintf(stderr, "outb: port=0x%04"FMT_pioaddr", data=%02"PRIx8"\n",
-            addr, val);
-}
-
-void cpu_outw(pio_addr_t addr, uint16_t val)
-{
-    fprintf(stderr, "outw: port=0x%04"FMT_pioaddr", data=%04"PRIx16"\n",
-            addr, val);
-}
-
-void cpu_outl(pio_addr_t addr, uint32_t val)
-{
-    fprintf(stderr, "outl: port=0x%04"FMT_pioaddr", data=%08"PRIx32"\n",
-            addr, val);
-}
-
-uint8_t cpu_inb(pio_addr_t addr)
-{
-    fprintf(stderr, "inb: port=0x%04"FMT_pioaddr"\n", addr);
-    return 0;
-}
-
-uint16_t cpu_inw(pio_addr_t addr)
-{
-    fprintf(stderr, "inw: port=0x%04"FMT_pioaddr"\n", addr);
-    return 0;
-}
-
-uint32_t cpu_inl(pio_addr_t addr)
-{
-    fprintf(stderr, "inl: port=0x%04"FMT_pioaddr"\n", addr);
-    return 0;
-}
diff --git a/target-i386/misc_helper.c b/target-i386/misc_helper.c
index 4aaf1e4..52c5d65 100644
--- a/target-i386/misc_helper.c
+++ b/target-i386/misc_helper.c
@@ -18,38 +18,71 @@
  */
 
 #include "cpu.h"
-#include "exec/ioport.h"
 #include "exec/helper-proto.h"
 #include "exec/cpu_ldst.h"
+#include "exec/address-spaces.h"
 
-void helper_outb(uint32_t port, uint32_t data)
+void helper_outb(CPUX86State *env, uint32_t port, uint32_t data)
 {
-    cpu_outb(port, data & 0xff);
+#ifdef CONFIG_USER_ONLY
+    fprintf(stderr, "outb: port=0x%04x, data=%02x\n", port, data);
+#else
+    address_space_stb(&address_space_io, port, data,
+                      cpu_get_mem_attrs(env), NULL);
+#endif
 }
 
-target_ulong helper_inb(uint32_t port)
+target_ulong helper_inb(CPUX86State *env, uint32_t port)
 {
-    return cpu_inb(port);
+#ifdef CONFIG_USER_ONLY
+    fprintf(stderr, "inb: port=0x%04x\n", port);
+    return 0;
+#else
+    return address_space_ldub(&address_space_io, port,
+                              cpu_get_mem_attrs(env), NULL);
+#endif
 }
 
-void helper_outw(uint32_t port, uint32_t data)
+void helper_outw(CPUX86State *env, uint32_t port, uint32_t data)
 {
-    cpu_outw(port, data & 0xffff);
+#ifdef CONFIG_USER_ONLY
+    fprintf(stderr, "outw: port=0x%04x, data=%04x\n", port, data);
+#else
+    address_space_stw(&address_space_io, port, data,
+                      cpu_get_mem_attrs(env), NULL);
+#endif
 }
 
-target_ulong helper_inw(uint32_t port)
+target_ulong helper_inw(CPUX86State *env, uint32_t port)
 {
-    return cpu_inw(port);
+#ifdef CONFIG_USER_ONLY
+    fprintf(stderr, "inw: port=0x%04x\n", port);
+    return 0;
+#else
+    return address_space_lduw(&address_space_io, port,
+                              cpu_get_mem_attrs(env), NULL);
+#endif
 }
 
-void helper_outl(uint32_t port, uint32_t data)
+void helper_outl(CPUX86State *env, uint32_t port, uint32_t data)
 {
-    cpu_outl(port, data);
+#ifdef CONFIG_USER_ONLY
+    fprintf(stderr, "outw: port=0x%04x, data=%08x\n", port, data);
+#else
+    address_space_stl(&address_space_io, port, data,
+                      cpu_get_mem_attrs(env), NULL);
+#endif
 }
 
-target_ulong helper_inl(uint32_t port)
+target_ulong helper_inl(CPUX86State *env, uint32_t port)
 {
-    return cpu_inl(port);
+#ifdef CONFIG_USER_ONLY
+    fprintf(stderr, "inl: port=0x%04x\n", port);
+    return 0;
+#else
+    return address_space_ldl(&address_space_io, port,
+                             cpu_get_mem_attrs(env), NULL);
+#endif
 }
 
 void helper_into(CPUX86State *env, int next_eip_addend)
diff --git a/target-i386/translate.c b/target-i386/translate.c
index 305ce50..58b1959 100644
--- a/target-i386/translate.c
+++ b/target-i386/translate.c
@@ -631,13 +631,13 @@ static void gen_helper_in_func(TCGMemOp ot, TCGv v, TCGv_i32 n)
 {
     switch (ot) {
     case MO_8:
-        gen_helper_inb(v, n);
+        gen_helper_inb(v, cpu_env, n);
         break;
     case MO_16:
-        gen_helper_inw(v, n);
+        gen_helper_inw(v, cpu_env, n);
         break;
     case MO_32:
-        gen_helper_inl(v, n);
+        gen_helper_inl(v, cpu_env, n);
         break;
     default:
         tcg_abort();
@@ -648,13 +648,13 @@ static void gen_helper_out_func(TCGMemOp ot, TCGv_i32 v, TCGv_i32 n)
 {
     switch (ot) {
     case MO_8:
-        gen_helper_outb(v, n);
+        gen_helper_outb(cpu_env, v, n);
         break;
     case MO_16:
-        gen_helper_outw(v, n);
+        gen_helper_outw(cpu_env, v, n);
         break;
     case MO_32:
-        gen_helper_outl(v, n);
+        gen_helper_outl(cpu_env, v, n);
         break;
     default:
         tcg_abort();
-- 
2.4.1