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")

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# gpg: Signature made Wed 26 Feb 2025 02:02:12 HKT
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# 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, 23 insertions, 0 deletions

diff --git a/hw/core/machine.c b/hw/core/machine.c
index 02cff735b3..b68b8b94a3 100644
--- a/hw/core/machine.c
+++ b/hw/core/machine.c
@@ -19,6 +19,7 @@
 #include "qemu/error-report.h"
 #include "qapi/error.h"
 #include "qapi/qapi-visit-machine.h"
+#include "qapi/qapi-commands-machine.h"
 #include "qemu/madvise.h"
 #include "qom/object_interfaces.h"
 #include "system/cpus.h"
@@ -1696,6 +1697,22 @@ void qemu_remove_machine_init_done_notifier(Notifier *notify)
     notifier_remove(notify);
 }
 
+static void handle_machine_dumpdtb(MachineState *ms)
+{
+    if (!ms->dumpdtb) {
+        return;
+    }
+#ifdef CONFIG_FDT
+    qmp_dumpdtb(ms->dumpdtb, &error_fatal);
+    exit(0);
+#else
+    error_report("This machine doesn't have an FDT");
+    error_printf("(this machine type definitely doesn't use FDT, and "
+                 "this QEMU doesn't have FDT support compiled in)\n");
+    exit(1);
+#endif
+}
+
 void qdev_machine_creation_done(void)
 {
     cpu_synchronize_all_post_init();
@@ -1712,6 +1729,12 @@ void qdev_machine_creation_done(void)
     phase_advance(PHASE_MACHINE_READY);
     qdev_assert_realized_properly();
 
+    /*
+     * If the user used -machine dumpdtb=file.dtb to request that we
+     * dump the DTB to a file,  do it now, and exit.
+     */
+    handle_machine_dumpdtb(current_machine);
+
     /* TODO: once all bus devices are qdevified, this should be done
      * when bus is created by qdev.c */
     /*