[RFC PATCH 2/9] qtest: Add local qtest_mem_as() getter

[Philippe Mathieu-Daudé]

Refactor the access to the default address space introducing the
qtest_mem_as() getter. This will help us to use another address
space in the next commit.

Signed-off-by: Philippe Mathieu-Daudé <f4...@amsat.org>
---
 softmmu/qtest.c | 32 +++++++++++++++++++-------------
 1 file changed, 19 insertions(+), 13 deletions(-)

diff --git a/softmmu/qtest.c b/softmmu/qtest.c
index 5672b75c35..81b5110783 100644
--- a/softmmu/qtest.c
+++ b/softmmu/qtest.c
@@ -273,6 +273,12 @@ static void qtest_irq_handler(void *opaque, int n, int 
level)
     }
 }
 
+/* Default address space for MMIO accesses */
+static AddressSpace *qtest_mem_as(void)
+{
+    return first_cpu->as;
+}
+
 static void qtest_process_command(CharBackend *chr, gchar **words)
 {
     const gchar *command;
@@ -434,22 +440,22 @@ static void qtest_process_command(CharBackend *chr, gchar 
**words)
 
         if (words[0][5] == 'b') {
             uint8_t data = value;
-            address_space_write(first_cpu->as, addr, MEMTXATTRS_UNSPECIFIED,
+            address_space_write(qtest_mem_as(), addr, MEMTXATTRS_UNSPECIFIED,
                                 &data, 1);
         } else if (words[0][5] == 'w') {
             uint16_t data = value;
             tswap16s(&data);
-            address_space_write(first_cpu->as, addr, MEMTXATTRS_UNSPECIFIED,
+            address_space_write(qtest_mem_as(), addr, MEMTXATTRS_UNSPECIFIED,
                                 &data, 2);
         } else if (words[0][5] == 'l') {
             uint32_t data = value;
             tswap32s(&data);
-            address_space_write(first_cpu->as, addr, MEMTXATTRS_UNSPECIFIED,
+            address_space_write(qtest_mem_as(), addr, MEMTXATTRS_UNSPECIFIED,
                                 &data, 4);
         } else if (words[0][5] == 'q') {
             uint64_t data = value;
             tswap64s(&data);
-            address_space_write(first_cpu->as, addr, MEMTXATTRS_UNSPECIFIED,
+            address_space_write(qtest_mem_as(), addr, MEMTXATTRS_UNSPECIFIED,
                                 &data, 8);
         }
         qtest_send_prefix(chr);
@@ -468,21 +474,21 @@ static void qtest_process_command(CharBackend *chr, gchar 
**words)
 
         if (words[0][4] == 'b') {
             uint8_t data;
-            address_space_read(first_cpu->as, addr, MEMTXATTRS_UNSPECIFIED,
+            address_space_read(qtest_mem_as(), addr, MEMTXATTRS_UNSPECIFIED,
                                &data, 1);
             value = data;
         } else if (words[0][4] == 'w') {
             uint16_t data;
-            address_space_read(first_cpu->as, addr, MEMTXATTRS_UNSPECIFIED,
+            address_space_read(qtest_mem_as(), addr, MEMTXATTRS_UNSPECIFIED,
                                &data, 2);
             value = tswap16(data);
         } else if (words[0][4] == 'l') {
             uint32_t data;
-            address_space_read(first_cpu->as, addr, MEMTXATTRS_UNSPECIFIED,
+            address_space_read(qtest_mem_as(), addr, MEMTXATTRS_UNSPECIFIED,
                                &data, 4);
             value = tswap32(data);
         } else if (words[0][4] == 'q') {
-            address_space_read(first_cpu->as, addr, MEMTXATTRS_UNSPECIFIED,
+            address_space_read(qtest_mem_as(), addr, MEMTXATTRS_UNSPECIFIED,
                                &value, 8);
             tswap64s(&value);
         }
@@ -503,7 +509,7 @@ static void qtest_process_command(CharBackend *chr, gchar 
**words)
         g_assert(len);
 
         data = g_malloc(len);
-        address_space_read(first_cpu->as, addr, MEMTXATTRS_UNSPECIFIED, data,
+        address_space_read(qtest_mem_as(), addr, MEMTXATTRS_UNSPECIFIED, data,
                            len);
 
         enc = g_malloc(2 * len + 1);
@@ -529,7 +535,7 @@ static void qtest_process_command(CharBackend *chr, gchar 
**words)
         g_assert(ret == 0);
 
         data = g_malloc(len);
-        address_space_read(first_cpu->as, addr, MEMTXATTRS_UNSPECIFIED, data,
+        address_space_read(qtest_mem_as(), addr, MEMTXATTRS_UNSPECIFIED, data,
                            len);
         b64_data = g_base64_encode(data, len);
         qtest_send_prefix(chr);
@@ -564,7 +570,7 @@ static void qtest_process_command(CharBackend *chr, gchar 
**words)
                 data[i] = 0;
             }
         }
-        address_space_write(first_cpu->as, addr, MEMTXATTRS_UNSPECIFIED, data,
+        address_space_write(qtest_mem_as(), addr, MEMTXATTRS_UNSPECIFIED, data,
                             len);
         g_free(data);
 
@@ -587,7 +593,7 @@ static void qtest_process_command(CharBackend *chr, gchar 
**words)
         if (len) {
             data = g_malloc(len);
             memset(data, pattern, len);
-            address_space_write(first_cpu->as, addr, MEMTXATTRS_UNSPECIFIED,
+            address_space_write(qtest_mem_as(), addr, MEMTXATTRS_UNSPECIFIED,
                                 data, len);
             g_free(data);
         }
@@ -621,7 +627,7 @@ static void qtest_process_command(CharBackend *chr, gchar 
**words)
             out_len = MIN(out_len, len);
         }
 
-        address_space_write(first_cpu->as, addr, MEMTXATTRS_UNSPECIFIED, data,
+        address_space_write(qtest_mem_as(), addr, MEMTXATTRS_UNSPECIFIED, data,
                             len);
 
         qtest_send_prefix(chr);
-- 
2.26.2