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-rw-r--r--hw/arm/boot.c42
-rw-r--r--hw/arm/virt.c8
2 files changed, 47 insertions, 3 deletions
diff --git a/hw/arm/boot.c b/hw/arm/boot.c
index d391cd01bb..1e57c4ab9e 100644
--- a/hw/arm/boot.c
+++ b/hw/arm/boot.c
@@ -25,6 +25,7 @@
 #include "hw/boards.h"
 #include "system/reset.h"
 #include "hw/loader.h"
+#include "hw/mem/memory-device.h"
 #include "elf.h"
 #include "system/device_tree.h"
 #include "qemu/config-file.h"
@@ -515,6 +516,29 @@ static void fdt_add_psci_node(void *fdt, ARMCPU *armcpu)
     qemu_fdt_setprop_cell(fdt, "/psci", "migrate", migrate_fn);
 }
 
+static int fdt_add_pmem_node(void *fdt, uint32_t acells, uint32_t scells,
+                             int64_t mem_base, int64_t size, int64_t node)
+{
+    int ret;
+
+    g_autofree char *nodename = g_strdup_printf("/pmem@%" PRIx64, mem_base);
+
+    qemu_fdt_add_subnode(fdt, nodename);
+    qemu_fdt_setprop_string(fdt, nodename, "compatible", "pmem-region");
+    ret = qemu_fdt_setprop_sized_cells(fdt, nodename, "reg", acells,
+                                       mem_base, scells, size);
+    if (ret) {
+        return ret;
+    }
+
+    if (node >= 0) {
+        return qemu_fdt_setprop_cell(fdt, nodename, "numa-node-id",
+                                     node);
+    }
+
+    return 0;
+}
+
 int arm_load_dtb(hwaddr addr, const struct arm_boot_info *binfo,
                  hwaddr addr_limit, AddressSpace *as, MachineState *ms,
                  ARMCPU *cpu)
@@ -525,6 +549,7 @@ int arm_load_dtb(hwaddr addr, const struct arm_boot_info *binfo,
     unsigned int i;
     hwaddr mem_base, mem_len;
     char **node_path;
+    g_autofree MemoryDeviceInfoList *md_list = NULL;
     Error *err = NULL;
 
     if (binfo->dtb_filename) {
@@ -628,6 +653,23 @@ int arm_load_dtb(hwaddr addr, const struct arm_boot_info *binfo,
         }
     }
 
+    md_list = qmp_memory_device_list();
+    for (MemoryDeviceInfoList *m = md_list; m != NULL; m = m->next) {
+        MemoryDeviceInfo *mi = m->value;
+
+        if (mi->type == MEMORY_DEVICE_INFO_KIND_NVDIMM) {
+            PCDIMMDeviceInfo *di = mi->u.nvdimm.data;
+
+            rc = fdt_add_pmem_node(fdt, acells, scells,
+                                   di->addr, di->size, di->node);
+            if (rc < 0) {
+                fprintf(stderr, "couldn't add NVDIMM /pmem@%"PRIx64" node\n",
+                        di->addr);
+                goto fail;
+            }
+        }
+    }
+
     rc = fdt_path_offset(fdt, "/chosen");
     if (rc < 0) {
         qemu_fdt_add_subnode(fdt, "/chosen");
diff --git a/hw/arm/virt.c b/hw/arm/virt.c
index 9326cfc895..1e63f40fbe 100644
--- a/hw/arm/virt.c
+++ b/hw/arm/virt.c
@@ -2917,7 +2917,7 @@ static void virt_memory_pre_plug(HotplugHandler *hotplug_dev, DeviceState *dev,
     const MachineState *ms = MACHINE(hotplug_dev);
     const bool is_nvdimm = object_dynamic_cast(OBJECT(dev), TYPE_NVDIMM);
 
-    if (!vms->acpi_dev) {
+    if (!vms->acpi_dev && !(is_nvdimm && !dev->hotplugged)) {
         error_setg(errp,
                    "memory hotplug is not enabled: missing acpi-ged device");
         return;
@@ -2949,8 +2949,10 @@ static void virt_memory_plug(HotplugHandler *hotplug_dev,
         nvdimm_plug(ms->nvdimms_state);
     }
 
-    hotplug_handler_plug(HOTPLUG_HANDLER(vms->acpi_dev),
-                         dev, &error_abort);
+    if (vms->acpi_dev) {
+        hotplug_handler_plug(HOTPLUG_HANDLER(vms->acpi_dev),
+                             dev, &error_abort);
+    }
 }
 
 static void virt_machine_device_pre_plug_cb(HotplugHandler *hotplug_dev,