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-rw-r--r--hw/core/loader.c17
-rw-r--r--hw/core/or-irq.c3
-rw-r--r--hw/core/register.c30
3 files changed, 42 insertions, 8 deletions
diff --git a/hw/core/loader.c b/hw/core/loader.c
index 8b980e91fb..bf17b42cbe 100644
--- a/hw/core/loader.c
+++ b/hw/core/loader.c
@@ -435,6 +435,19 @@ int load_elf_as(const char *filename,
                 uint64_t *highaddr, int big_endian, int elf_machine,
                 int clear_lsb, int data_swab, AddressSpace *as)
 {
+    return load_elf_ram(filename, translate_fn, translate_opaque,
+                        pentry, lowaddr, highaddr, big_endian, elf_machine,
+                        clear_lsb, data_swab, as, true);
+}
+
+/* return < 0 if error, otherwise the number of bytes loaded in memory */
+int load_elf_ram(const char *filename,
+                 uint64_t (*translate_fn)(void *, uint64_t),
+                 void *translate_opaque, uint64_t *pentry, uint64_t *lowaddr,
+                 uint64_t *highaddr, int big_endian, int elf_machine,
+                 int clear_lsb, int data_swab, AddressSpace *as,
+                 bool load_rom)
+{
     int fd, data_order, target_data_order, must_swab, ret = ELF_LOAD_FAILED;
     uint8_t e_ident[EI_NIDENT];
 
@@ -473,11 +486,11 @@ int load_elf_as(const char *filename,
     if (e_ident[EI_CLASS] == ELFCLASS64) {
         ret = load_elf64(filename, fd, translate_fn, translate_opaque, must_swab,
                          pentry, lowaddr, highaddr, elf_machine, clear_lsb,
-                         data_swab, as);
+                         data_swab, as, load_rom);
     } else {
         ret = load_elf32(filename, fd, translate_fn, translate_opaque, must_swab,
                          pentry, lowaddr, highaddr, elf_machine, clear_lsb,
-                         data_swab, as);
+                         data_swab, as, load_rom);
     }
 
  fail:
diff --git a/hw/core/or-irq.c b/hw/core/or-irq.c
index 1ac090d1a4..1485d5b285 100644
--- a/hw/core/or-irq.c
+++ b/hw/core/or-irq.c
@@ -89,6 +89,9 @@ static void or_irq_class_init(ObjectClass *klass, void *data)
     dc->props = or_irq_properties;
     dc->realize = or_irq_realize;
     dc->vmsd = &vmstate_or_irq;
+
+    /* Reason: Needs to be wired up to work, e.g. see stm32f205_soc.c */
+    dc->cannot_instantiate_with_device_add_yet = true;
 }
 
 static const TypeInfo or_irq_type_info = {
diff --git a/hw/core/register.c b/hw/core/register.c
index 4bfbc508de..dc335a79a9 100644
--- a/hw/core/register.c
+++ b/hw/core/register.c
@@ -59,6 +59,15 @@ static inline uint64_t register_read_val(RegisterInfo *reg)
     return 0; /* unreachable */
 }
 
+static inline uint64_t register_enabled_mask(int data_size, unsigned size)
+{
+    if (data_size < size) {
+        size = data_size;
+    }
+
+    return MAKE_64BIT_MASK(0, size * 8);
+}
+
 void register_write(RegisterInfo *reg, uint64_t val, uint64_t we,
                     const char *prefix, bool debug)
 {
@@ -192,11 +201,7 @@ void register_write_memory(void *opaque, hwaddr addr,
     }
 
     /* Generate appropriate write enable mask */
-    if (reg->data_size < size) {
-        we = MAKE_64BIT_MASK(0, reg->data_size * 8);
-    } else {
-        we = MAKE_64BIT_MASK(0, size * 8);
-    }
+    we = register_enabled_mask(reg->data_size, size);
 
     register_write(reg, value, we, reg_array->prefix,
                    reg_array->debug);
@@ -208,6 +213,7 @@ uint64_t register_read_memory(void *opaque, hwaddr addr,
     RegisterInfoArray *reg_array = opaque;
     RegisterInfo *reg = NULL;
     uint64_t read_val;
+    uint64_t re;
     int i;
 
     for (i = 0; i < reg_array->num_elements; i++) {
@@ -223,7 +229,10 @@ uint64_t register_read_memory(void *opaque, hwaddr addr,
         return 0;
     }
 
-    read_val = register_read(reg, size * 8, reg_array->prefix,
+    /* Generate appropriate read enable mask */
+    re = register_enabled_mask(reg->data_size, size);
+
+    read_val = register_read(reg, re, reg_array->prefix,
                              reg_array->debug);
 
     return extract64(read_val, 0, size * 8);
@@ -274,9 +283,18 @@ void register_finalize_block(RegisterInfoArray *r_array)
     g_free(r_array);
 }
 
+static void register_class_init(ObjectClass *oc, void *data)
+{
+    DeviceClass *dc = DEVICE_CLASS(oc);
+
+    /* Reason: needs to be wired up to work */
+    dc->cannot_instantiate_with_device_add_yet = true;
+}
+
 static const TypeInfo register_info = {
     .name  = TYPE_REGISTER,
     .parent = TYPE_DEVICE,
+    .class_init = register_class_init,
 };
 
 static void register_register_types(void)