@@ -1040,6 +1040,37 @@ static void virt_mem_plug(HotplugHandler *hotplug_dev,
dev, &error_abort);
}
+#ifdef CONFIG_TPM
+static void virt_tpm_plug(LoongArchMachineState *lams, TPMIf *tpmif)
+{
+ PlatformBusDevice *pbus = PLATFORM_BUS_DEVICE(lams->platform_bus_dev);
+ hwaddr pbus_base = VIRT_PLATFORM_BUS_BASEADDRESS;
+ SysBusDevice *sbdev = SYS_BUS_DEVICE(tpmif);
+ MemoryRegion *sbdev_mr;
+ hwaddr tpm_base;
+ uint64_t tpm_size;
+
+ if (!sbdev || !object_dynamic_cast(OBJECT(sbdev), TYPE_SYS_BUS_DEVICE)) {
+ return;
+ }
+
+ tpm_base = platform_bus_get_mmio_addr(pbus, sbdev, 0);
+ assert(tpm_base != -1);
+
+ tpm_base += pbus_base;
+
+ sbdev_mr = sysbus_mmio_get_region(sbdev, 0);
+ tpm_size = memory_region_size(sbdev_mr);
+
+ if (object_property_find(OBJECT(sbdev), "baseaddr")) {
+ object_property_set_uint(OBJECT(sbdev), "baseaddr", tpm_base, NULL);
+ }
+ if (object_property_find(OBJECT(sbdev), "size")) {
+ object_property_set_uint(OBJECT(sbdev), "size", tpm_size, NULL);
+ }
+}
+#endif
+
static void loongarch_machine_device_plug_cb(HotplugHandler *hotplug_dev,
DeviceState *dev, Error **errp)
{
@@ -1054,6 +1085,12 @@ static void loongarch_machine_device_plug_cb(HotplugHandler *hotplug_dev,
} else if (memhp_type_supported(dev)) {
virt_mem_plug(hotplug_dev, dev, errp);
}
+
+#ifdef CONFIG_TPM
+ if (object_dynamic_cast(OBJECT(dev), TYPE_TPM_IF)) {
+ virt_tpm_plug(lams, TPM_IF(dev));
+ }
+#endif
}
static HotplugHandler *virt_machine_get_hotplug_handler(MachineState *machine,
TPM needs to know its own base address in order to generate its DSDT device entry. Signed-off-by: Joelle van Dyne <j@getutm.app> --- hw/loongarch/virt.c | 37 +++++++++++++++++++++++++++++++++++++ 1 file changed, 37 insertions(+)