target/arm: Add TTBR1_EL2

[mirror_qemu.git] / block.c

diff --git a/block.c b/block.c
index 1b6f7c86e80b28252abb7b18258f29fcbd8af119..9c810534d6ff5db47cbd20bdc89eac41cae91319 100644 (file)
--- a/block.c
+++ b/block.c
@@ -845,6 +845,28 @@ static BlockdevDetectZeroesOptions bdrv_parse_detect_zeroes(QemuOpts *opts,
     return detect_zeroes;
 }
 
+/**
+ * Set open flags for aio engine
+ *
+ * Return 0 on success, -1 if the engine specified is invalid
+ */
+int bdrv_parse_aio(const char *mode, int *flags)
+{
+    if (!strcmp(mode, "threads")) {
+        /* do nothing, default */
+    } else if (!strcmp(mode, "native")) {
+        *flags |= BDRV_O_NATIVE_AIO;
+#ifdef CONFIG_LINUX_IO_URING
+    } else if (!strcmp(mode, "io_uring")) {
+        *flags |= BDRV_O_IO_URING;
+#endif
+    } else {
+        return -1;
+    }
+
+    return 0;
+}
+
 /**
  * Set open flags for a given discard mode
  *
@@ -1976,18 +1998,19 @@ char *bdrv_perm_names(uint64_t perm)
         { 0, NULL }
     };
 
-    char *result = g_strdup("");
+    GString *result = g_string_sized_new(30);
     struct perm_name *p;
 
     for (p = permissions; p->name; p++) {
         if (perm & p->perm) {
-            char *old = result;
-            result = g_strdup_printf("%s%s%s", old, *old ? ", " : "", p->name);
-            g_free(old);
+            if (result->len > 0) {
+                g_string_append(result, ", ");
+            }
+            g_string_append(result, p->name);
         }
     }
 
-    return result;
+    return g_string_free(result, FALSE);
 }
 
 /*
@@ -2227,6 +2250,24 @@ void bdrv_format_default_perms(BlockDriverState *bs, BdrvChild *c,
     *nshared = shared;
 }
 
+uint64_t bdrv_qapi_perm_to_blk_perm(BlockPermission qapi_perm)
+{
+    static const uint64_t permissions[] = {
+        [BLOCK_PERMISSION_CONSISTENT_READ]  = BLK_PERM_CONSISTENT_READ,
+        [BLOCK_PERMISSION_WRITE]            = BLK_PERM_WRITE,
+        [BLOCK_PERMISSION_WRITE_UNCHANGED]  = BLK_PERM_WRITE_UNCHANGED,
+        [BLOCK_PERMISSION_RESIZE]           = BLK_PERM_RESIZE,
+        [BLOCK_PERMISSION_GRAPH_MOD]        = BLK_PERM_GRAPH_MOD,
+    };
+
+    QEMU_BUILD_BUG_ON(ARRAY_SIZE(permissions) != BLOCK_PERMISSION__MAX);
+    QEMU_BUILD_BUG_ON(1UL << ARRAY_SIZE(permissions) != BLK_PERM_ALL + 1);
+
+    assert(qapi_perm < BLOCK_PERMISSION__MAX);
+
+    return permissions[qapi_perm];
+}
+
 static void bdrv_replace_child_noperm(BdrvChild *child,
                                       BlockDriverState *new_bs)
 {
@@ -4854,36 +4895,23 @@ static void xdbg_graph_add_node(XDbgBlockGraphConstructor *gr, void *node,
 static void xdbg_graph_add_edge(XDbgBlockGraphConstructor *gr, void *parent,
                                 const BdrvChild *child)
 {
-    typedef struct {
-        unsigned int flag;
-        BlockPermission num;
-    } PermissionMap;
-
-    static const PermissionMap permissions[] = {
-        { BLK_PERM_CONSISTENT_READ, BLOCK_PERMISSION_CONSISTENT_READ },
-        { BLK_PERM_WRITE,           BLOCK_PERMISSION_WRITE },
-        { BLK_PERM_WRITE_UNCHANGED, BLOCK_PERMISSION_WRITE_UNCHANGED },
-        { BLK_PERM_RESIZE,          BLOCK_PERMISSION_RESIZE },
-        { BLK_PERM_GRAPH_MOD,       BLOCK_PERMISSION_GRAPH_MOD },
-        { 0, 0 }
-    };
-    const PermissionMap *p;
+    BlockPermission qapi_perm;
     XDbgBlockGraphEdge *edge;
 
-    QEMU_BUILD_BUG_ON(1UL << (ARRAY_SIZE(permissions) - 1) != BLK_PERM_ALL + 1);
-
     edge = g_new0(XDbgBlockGraphEdge, 1);
 
     edge->parent = xdbg_graph_node_num(gr, parent);
     edge->child = xdbg_graph_node_num(gr, child->bs);
     edge->name = g_strdup(child->name);
 
-    for (p = permissions; p->flag; p++) {
-        if (p->flag & child->perm) {
-            QAPI_LIST_ADD(edge->perm, p->num);
+    for (qapi_perm = 0; qapi_perm < BLOCK_PERMISSION__MAX; qapi_perm++) {
+        uint64_t flag = bdrv_qapi_perm_to_blk_perm(qapi_perm);
+
+        if (flag & child->perm) {
+            QAPI_LIST_ADD(edge->perm, qapi_perm);
         }
-        if (p->flag & child->shared_perm) {
-            QAPI_LIST_ADD(edge->shared_perm, p->num);
+        if (flag & child->shared_perm) {
+            QAPI_LIST_ADD(edge->shared_perm, qapi_perm);
         }
     }
 
@@ -6414,6 +6442,7 @@ void bdrv_refresh_filename(BlockDriverState *bs)
                 child->bs->exact_filename);
         pstrcpy(bs->filename, sizeof(bs->filename), child->bs->filename);
 
+        qobject_unref(bs->full_open_options);
         bs->full_open_options = qobject_ref(child->bs->full_open_options);
 
         return;