Merge remote-tracking branch 'remotes/pmaydell/tags/pull-target-arm-20160714' into staging

target-arm queue:
 * add virtio-mmio transport base address to device path
   (avoid an assertion failure with multiple virtio-scsi-devices)
 * revert hw/ptimer commit 5a50307 which causes regressions on
   SPARC guests
 * use Neon to accelerate zero-page checking on AArch64 hosts
 * set the MPIDR for TCG to match how KVM does it (and fit with
   GICv2/GICv3 restrictions on SGI target lists)
 * add some missing AArch32 TLBI hypervisor TLB operations
 * m25p80: Fix QIOR/DIOR handling for Winbond
 * hw/misc: fix typo in Aspeed SCU hw-strap2 property name
 * ast2400: pretend DMAs are done for U-boot
 * ast2400: some minor code cleanups

# gpg: Signature made Thu 14 Jul 2016 17:21:30 BST
# 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-20160714:
  ast2400: externalize revision numbers
  ast2400: pretend DMAs are done for U-boot
  ast2400: replace aspeed_smc_is_implemented()
  hw/misc: fix typo in Aspeed SCU hw-strap2 property name
  m25p80: Fix QIOR/DIOR handling for Winbond
  target-arm: Add missed AArch32 TLBI sytem registers
  hw/arm/virt: tcg: adjust MPIDR like KVM
  gic: provide defines for v2/v3 targetlist sizes
  target-arm: Use Neon for zero checking
  Revert "hw/ptimer: Perform counter wrap around if timer already expired"
  virtio-mmio: format transport base address in BusClass.get_dev_path

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

1 files changed, 49 insertions, 0 deletions

diff --git a/hw/virtio/virtio-mmio.c b/hw/virtio/virtio-mmio.c
index eb84b74532..13798b3cb8 100644
--- a/hw/virtio/virtio-mmio.c
+++ b/hw/virtio/virtio-mmio.c
@@ -91,6 +91,7 @@ typedef struct {
     VirtioBusState bus;
     bool ioeventfd_disabled;
     bool ioeventfd_started;
+    bool format_transport_address;
 } VirtIOMMIOProxy;
 
 static bool virtio_mmio_ioeventfd_started(DeviceState *d)
@@ -469,6 +470,12 @@ assign_error:
 
 /* virtio-mmio device */
 
+static Property virtio_mmio_properties[] = {
+    DEFINE_PROP_BOOL("format_transport_address", VirtIOMMIOProxy,
+                     format_transport_address, true),
+    DEFINE_PROP_END_OF_LIST(),
+};
+
 static void virtio_mmio_realizefn(DeviceState *d, Error **errp)
 {
     VirtIOMMIOProxy *proxy = VIRTIO_MMIO(d);
@@ -489,6 +496,7 @@ static void virtio_mmio_class_init(ObjectClass *klass, void *data)
     dc->realize = virtio_mmio_realizefn;
     dc->reset = virtio_mmio_reset;
     set_bit(DEVICE_CATEGORY_MISC, dc->categories);
+    dc->props = virtio_mmio_properties;
 }
 
 static const TypeInfo virtio_mmio_info = {
@@ -500,6 +508,46 @@ static const TypeInfo virtio_mmio_info = {
 
 /* virtio-mmio-bus. */
 
+static char *virtio_mmio_bus_get_dev_path(DeviceState *dev)
+{
+    BusState *virtio_mmio_bus;
+    VirtIOMMIOProxy *virtio_mmio_proxy;
+    char *proxy_path;
+    SysBusDevice *proxy_sbd;
+    char *path;
+
+    virtio_mmio_bus = qdev_get_parent_bus(dev);
+    virtio_mmio_proxy = VIRTIO_MMIO(virtio_mmio_bus->parent);
+    proxy_path = qdev_get_dev_path(DEVICE(virtio_mmio_proxy));
+
+    /*
+     * If @format_transport_address is false, then we just perform the same as
+     * virtio_bus_get_dev_path(): we delegate the address formatting for the
+     * device on the virtio-mmio bus to the bus that the virtio-mmio proxy
+     * (i.e., the device that implements the virtio-mmio bus) resides on. In
+     * this case the base address of the virtio-mmio transport will be
+     * invisible.
+     */
+    if (!virtio_mmio_proxy->format_transport_address) {
+        return proxy_path;
+    }
+
+    /* Otherwise, we append the base address of the transport. */
+    proxy_sbd = SYS_BUS_DEVICE(virtio_mmio_proxy);
+    assert(proxy_sbd->num_mmio == 1);
+    assert(proxy_sbd->mmio[0].memory == &virtio_mmio_proxy->iomem);
+
+    if (proxy_path) {
+        path = g_strdup_printf("%s/virtio-mmio@" TARGET_FMT_plx, proxy_path,
+                               proxy_sbd->mmio[0].addr);
+    } else {
+        path = g_strdup_printf("virtio-mmio@" TARGET_FMT_plx,
+                               proxy_sbd->mmio[0].addr);
+    }
+    g_free(proxy_path);
+    return path;
+}
+
 static void virtio_mmio_bus_class_init(ObjectClass *klass, void *data)
 {
     BusClass *bus_class = BUS_CLASS(klass);
@@ -516,6 +564,7 @@ static void virtio_mmio_bus_class_init(ObjectClass *klass, void *data)
     k->ioeventfd_assign = virtio_mmio_ioeventfd_assign;
     k->has_variable_vring_alignment = true;
     bus_class->max_dev = 1;
+    bus_class->get_dev_path = virtio_mmio_bus_get_dev_path;
 }
 
 static const TypeInfo virtio_mmio_bus_info = {