+void qemu_chr_init_mem(CharDriverState *chr)
+{
+ MemoryDriver *d;
+
+ d = qemu_malloc(sizeof(*d));
+ d->outbuf_size = 0;
+ d->outbuf_capacity = 4096;
+ d->outbuf = qemu_mallocz(d->outbuf_capacity);
+
+ memset(chr, 0, sizeof(*chr));
+ chr->opaque = d;
+ chr->chr_write = mem_chr_write;
+}
+
+QString *qemu_chr_mem_to_qs(CharDriverState *chr)
+{
+ MemoryDriver *d = chr->opaque;
+ return qstring_from_substr((char *) d->outbuf, 0, d->outbuf_size - 1);
+}
+
+/* NOTE: this driver can not be closed with qemu_chr_close()! */
+void qemu_chr_close_mem(CharDriverState *chr)
+{
+ MemoryDriver *d = chr->opaque;
+
+ qemu_free(d->outbuf);
+ qemu_free(chr->opaque);
+ chr->opaque = NULL;
+ chr->chr_write = NULL;
+}
+
+size_t qemu_chr_mem_osize(const CharDriverState *chr)
+{
+ const MemoryDriver *d = chr->opaque;
+ return d->outbuf_size;
+}
+
+QemuOpts *qemu_chr_parse_compat(const char *label, const char *filename)