Merge tag 'pull-target-arm-20250225' of https://git.linaro.org/people/pmaydell/qemu-arm into staging

target-arm queue:
 * hw/arm/smmuv3: Fill u.f_cd_fetch.addr for SMMU_EVT_F_CD_FETCH
 * hw/arm/virt: Support larger highmem MMIO regions
 * machine: Centralize -machine dumpdtb option handling and report
   attempt to dump nonexistent DTB as an error
 * fpu: remove target ifdefs and build it only once
 * target/arm: Refactor to move TCG-only vfp_helper code into tcg/
 * target/arm/hvf: Disable SME feature
 * target/arm/hvf: sign extend the data for a load operation when SSE=1
 * hw/misc/npcm_clk: fix buffer-overflow
 * hw/arm: Add i.MX 8M Plus EVK board ("imx8mp-evk")

# -----BEGIN PGP SIGNATURE-----
#
# iQJNBAABCAA3FiEE4aXFk81BneKOgxXPPCUl7RQ2DN4FAme+BaQZHHBldGVyLm1h
# eWRlbGxAbGluYXJvLm9yZwAKCRA8JSXtFDYM3kG0EACuWqAhqYdn2muu1Rc3WQMh
# uMOdb/f7oaqbCpeBEdV1dazWfZJQ1Zk05J31t+tdoYowqM7nS55Vw9zrSntoC6Ll
# IYRzBmGWE+FnsODKhA0wx/lQO08GeMTrkHoGM72hiwIjbuC/Nps9aOQ2GH6WOCjN
# TACXF1dYNpoy+H979yIwGMWH1SSgn1fS+9zw3LsKCGtbnt7g80DyWpb6qlfKPJ78
# KHmpth//sCPbu6UtsFKTBlIb0dYtAWTnRoS834WBq9bw51OPh81WoApSBkjV479z
# kTcLyaJnoTKsPnz+6A/z3Fm/qi4aATk4/eCCT2ry3Oyi3ffafSlBf/KiFqAZ0Fue
# vq6/b/wsVTdyjnkcptmCHJ+6qEhPshNi3F4hu8YOFQsx+6zFR7NUkZrNt/IQIhZB
# DOcjtMFymg/duEbRW9RdLeVC3Ds2qVuxnzEbLmNJntBp+jkhm5QkWf6ZEJ6iviOf
# tSP+SLOFyCT71BdQSIMhLJHS9UPJ3vzgGkN54YCLDYg24aNCMSe0nqLFMxfchQJm
# njn1BdyX4pDibXv6tdDJdtOv3sLgvVaZZKEGlTGtNx8kq8qmXnzIJl6iQSBTrmD5
# qMb4NxaYG6hpzSQOV+XxLQ1BdLNj2qXs90EU1Jqfp378sOdl6Oyx5po5NIcyp36o
# g+GsbLqphJL4DkosoH8eFA==
# =MBWK
# -----END PGP SIGNATURE-----
# gpg: Signature made Wed 26 Feb 2025 02:02:12 HKT
# gpg:                using RSA key E1A5C593CD419DE28E8315CF3C2525ED14360CDE
# gpg:                issuer "peter.maydell@linaro.org"
# gpg: Good signature from "Peter Maydell <peter.maydell@linaro.org>" [full]
# gpg:                 aka "Peter Maydell <pmaydell@gmail.com>" [full]
# gpg:                 aka "Peter Maydell <pmaydell@chiark.greenend.org.uk>" [full]
# gpg:                 aka "Peter Maydell <peter@archaic.org.uk>" [unknown]
# Primary key fingerprint: E1A5 C593 CD41 9DE2 8E83  15CF 3C25 25ED 1436 0CDE

* tag 'pull-target-arm-20250225' of https://git.linaro.org/people/pmaydell/qemu-arm: (43 commits)
  hw/arm/fsl-imx8mp: Add on-chip RAM
  hw/arm/fsl-imx8mp: Add USB support
  hw/arm/fsl-imx8mp: Add Ethernet controller
  hw/arm/fsl-imx8mp: Implement general purpose timers
  hw/arm/fsl-imx8mp: Add watchdog support
  hw/arm/fsl-imx8mp: Add SPI controllers
  hw/arm/fsl-imx8mp: Add I2C controllers
  hw/arm/fsl-imx8mp: Add GPIO controllers
  hw/arm/fsl-imx8mp: Add PCIe support
  hw/arm/fsl-imx8mp: Add USDHC storage controllers
  hw/arm/fsl-imx8mp: Add SNVS
  hw/arm/fsl-imx8mp: Implement clock tree
  hw/arm: Add i.MX 8M Plus EVK board
  hw/gpio/pca955*: Move Kconfig switches next to implementations
  hw/pci-host/designware: Prevent device attachment on internal PCIe root bus
  hw/usb/hcd-dwc3: Align global registers size with Linux
  hw/misc/npcm_clk: fix buffer-overflow
  target/arm/hvf: sign extend the data for a load operation when SSE=1
  target/arm/hvf: Disable SME feature
  target/arm: Rename vfp_helper.c to vfp_fpscr.c
  ...

Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>

1 files changed, 17 insertions, 1 deletions

diff --git a/hw/pci-host/designware.c b/hw/pci-host/designware.c
index 3e8c36e6a7..c07740bfaa 100644
--- a/hw/pci-host/designware.c
+++ b/hw/pci-host/designware.c
@@ -55,6 +55,17 @@
 #define DESIGNWARE_PCIE_ATU_DEVFN(x)               (((x) >> 16) & 0xff)
 #define DESIGNWARE_PCIE_ATU_UPPER_TARGET           0x91C
 
+static void designware_pcie_root_bus_class_init(ObjectClass *klass, void *data)
+{
+    BusClass *k = BUS_CLASS(klass);
+
+    /*
+     * Designware has only a single root complex. Enforce the limit on the
+     * parent bus
+     */
+    k->max_dev = 1;
+}
+
 static DesignwarePCIEHost *
 designware_pcie_root_to_host(DesignwarePCIERoot *root)
 {
@@ -699,7 +710,7 @@ static void designware_pcie_host_realize(DeviceState *dev, Error **errp)
                                      &s->pci.memory,
                                      &s->pci.io,
                                      0, 4,
-                                     TYPE_PCIE_BUS);
+                                     TYPE_DESIGNWARE_PCIE_ROOT_BUS);
     pci->bus->flags |= PCI_BUS_EXTENDED_CONFIG_SPACE;
 
     memory_region_init(&s->pci.address_space_root,
@@ -754,6 +765,11 @@ static void designware_pcie_host_init(Object *obj)
 
 static const TypeInfo designware_pcie_types[] = {
     {
+        .name           = TYPE_DESIGNWARE_PCIE_ROOT_BUS,
+        .parent         = TYPE_PCIE_BUS,
+        .instance_size  = sizeof(DesignwarePCIERootBus),
+        .class_init     = designware_pcie_root_bus_class_init,
+    }, {
         .name           = TYPE_DESIGNWARE_PCIE_HOST,
         .parent         = TYPE_PCI_HOST_BRIDGE,
         .instance_size  = sizeof(DesignwarePCIEHost),