Merge remote-tracking branch 'remotes/pmaydell/tags/pull-target-arm-20170207-1' into staging

target-arm:
 * new "unimplemented" device for stubbing out devices in a
   system model so accesses can be logged
 * stellaris: document the SoC memory map
 * arm: create instruction syndromes for AArch32 data aborts
 * arm: Correctly handle watchpoints for BE32 CPUs
 * Fix Thumb-1 BE32 execution and disassembly
 * arm: Add cfgend parameter for ARM CPU selection
 * sd: sdhci: check data length during dma_memory_read
 * aspeed: add a watchdog controller
 * integratorcp: adding vmstate for save/restore

# gpg: Signature made Tue 07 Feb 2017 19:20:19 GMT
# gpg:                using RSA key 0x3C2525ED14360CDE
# gpg: Good signature from "Peter Maydell <peter.maydell@linaro.org>"
# gpg:                 aka "Peter Maydell <pmaydell@gmail.com>"
# gpg:                 aka "Peter Maydell <pmaydell@chiark.greenend.org.uk>"
# Primary key fingerprint: E1A5 C593 CD41 9DE2 8E83  15CF 3C25 25ED 1436 0CDE

* remotes/pmaydell/tags/pull-target-arm-20170207-1:
  stellaris: Use the 'unimplemented' device for parts we don't implement
  hw/misc: New "unimplemented" sysbus device
  stellaris: Document memory map and which SoC devices are unimplemented
  target/arm: A32, T32: Create Instruction Syndromes for Data Aborts
  target/arm: Abstract out pbit/wbit tests in ARM ldr/str decode
  arm: Correctly handle watchpoints for BE32 CPUs
  Fix Thumb-1 BE32 execution and disassembly.
  target/arm: Add cfgend parameter for ARM CPU selection.
  hw/arm/integratorcp: Support specifying features via -cpu
  sd: sdhci: check data length during dma_memory_read
  aspeed: add a watchdog controller
  wdt: Add Aspeed watchdog device model
  integratorcp: adding vmstate for save/restore

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>

1 files changed, 39 insertions, 0 deletions

diff --git a/include/hw/misc/unimp.h b/include/hw/misc/unimp.h
new file mode 100644
index 0000000000..3462d85836
--- /dev/null
+++ b/include/hw/misc/unimp.h
@@ -0,0 +1,39 @@
+/*
+ * "Unimplemented" device
+ *
+ * Copyright Linaro Limited, 2017
+ * Written by Peter Maydell
+ */
+
+#ifndef HW_MISC_UNIMP_H
+#define HW_MISC_UNIMP_H
+
+#define TYPE_UNIMPLEMENTED_DEVICE "unimplemented-device"
+
+/**
+ * create_unimplemented_device: create and map a dummy device
+ * @name: name of the device for debug logging
+ * @base: base address of the device's MMIO region
+ * @size: size of the device's MMIO region
+ *
+ * This utility function creates and maps an instance of unimplemented-device,
+ * which is a dummy device which simply logs all guest accesses to
+ * it via the qemu_log LOG_UNIMP debug log.
+ * The device is mapped at priority -1000, which means that you can
+ * use it to cover a large region and then map other devices on top of it
+ * if necessary.
+ */
+static inline void create_unimplemented_device(const char *name,
+                                               hwaddr base,
+                                               hwaddr size)
+{
+    DeviceState *dev = qdev_create(NULL, TYPE_UNIMPLEMENTED_DEVICE);
+
+    qdev_prop_set_string(dev, "name", name);
+    qdev_prop_set_uint64(dev, "size", size);
+    qdev_init_nofail(dev);
+
+    sysbus_mmio_map_overlap(SYS_BUS_DEVICE(dev), 0, base, -1000);
+}
+
+#endif