[v4] tpm: introduce TPM CRB SysBus device

[PATCH v4 08/14] hw/loongarch/virt: connect TPM to platform bus

Joelle van Dyne posted 14 patches 1 year ago

Diff against v1 v2 v3 v5
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Maintainers: Stefan Berger <stefanb@linux.vnet.ibm.com>, "Michael S. Tsirkin" <mst@redhat.com>, Igor Mammedov <imammedo@redhat.com>, Ani Sinha <anisinha@redhat.com>, Paolo Bonzini <pbonzini@redhat.com>, Peter Maydell <peter.maydell@linaro.org>, Shannon Zhao <shannon.zhaosl@gmail.com>, Richard Henderson <richard.henderson@linaro.org>, Eduardo Habkost <eduardo@habkost.net>, Marcel Apfelbaum <marcel.apfelbaum@gmail.com>, Song Gao <gaosong@loongson.cn>, Palmer Dabbelt <palmer@dabbelt.com>, Alistair Francis <alistair.francis@wdc.com>, Bin Meng <bin.meng@windriver.com>, Weiwei Li <liweiwei@iscas.ac.cn>, Daniel Henrique Barboza <dbarboza@ventanamicro.com>, Liu Zhiwei <zhiwei_liu@linux.alibaba.com>, Thomas Huth <thuth@redhat.com>, Laurent Vivier <lvivier@redhat.com>

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[PATCH v4 08/14] hw/loongarch/virt: connect TPM to platform bus

Posted by Joelle van Dyne 1 year ago

Signed-off-by: Joelle van Dyne <j@getutm.app>
Reviewed-by: Stefan Berger <stefanb@linux.ibm.com>
---
 hw/loongarch/virt.c  | 7 +++++++
 hw/loongarch/Kconfig | 1 +
 2 files changed, 8 insertions(+)

diff --git a/hw/loongarch/virt.c b/hw/loongarch/virt.c
index 4b7dc67a2d..feed0f8bbf 100644
--- a/hw/loongarch/virt.c
+++ b/hw/loongarch/virt.c
@@ -1004,6 +1004,13 @@ 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)) {
+        tpm_sysbus_plug(TPM_IF(dev), OBJECT(lams->platform_bus_dev),
+                        VIRT_PLATFORM_BUS_BASEADDRESS);
+    }
+#endif
 }
 
 static HotplugHandler *virt_machine_get_hotplug_handler(MachineState *machine,
diff --git a/hw/loongarch/Kconfig b/hw/loongarch/Kconfig
index 5727efed6d..25da190ffc 100644
--- a/hw/loongarch/Kconfig
+++ b/hw/loongarch/Kconfig
@@ -5,6 +5,7 @@ config LOONGARCH_VIRT
     imply VIRTIO_VGA
     imply PCI_DEVICES
     imply NVDIMM
+    imply TPM_TIS_SYSBUS
     select SERIAL
     select VIRTIO_PCI
     select PLATFORM_BUS
-- 
2.41.0