TPM code updater
This commit introduces a TPM code updater that currently supports
reading the firmware version for both Infineon and Nuvoton TPM 2.0.
Support for firmware updates will be introduced in a future patch.
The updater's configuration are managed by the EM [1].
[1] https://gerrit.openbmc.org/c/openbmc/entity-manager/+/82416
Tested on Yosemite5 with the following steps:
1. Display the fw inventory:
```
curl --silent $creds https://$bmc/redfish/v1/UpdateService/FirmwareInventory
{
"@odata.id": "/redfish/v1/UpdateService/FirmwareInventory",
"@odata.type": "#SoftwareInventoryCollection.SoftwareInventoryCollection",
"Members": [
{...},
{
"@odata.id": "/redfish/v1/UpdateService/FirmwareInventory/Yosemite5_TPM_4945"
},
{...}
],
"Members@odata.count": 4,
"Name": "Software Inventory Collection"
}
```
2. Query TPM version:
```
curl --silent $creds https://$bmc/redfish/v1/UpdateService/FirmwareInventory/Yosemite5_TPM_4945
{
"@odata.id": "/redfish/v1/UpdateService/FirmwareInventory/Yosemite5_TPM_4945",
"@odata.type": "#SoftwareInventory.v1_1_0.SoftwareInventory",
"Description": "Unknown image",
"Id": "Yosemite5_TPM_4945",
"Name": "Software Inventory",
"Status": {
"Health": "Warning",
"HealthRollup": "OK",
"State": "Disabled"
},
"Updateable": false,
"Version": "15.23"
}
```
Change-Id: I42568242356d55fe005ba1f41ddf8aaf9f682fc8
Signed-off-by: Kevin Tung <kevin.tung.openbmc@gmail.com>
diff --git a/tpm/tpm_device.cpp b/tpm/tpm_device.cpp
new file mode 100644
index 0000000..43f8853
--- /dev/null
+++ b/tpm/tpm_device.cpp
@@ -0,0 +1,66 @@
+#include "tpm_device.hpp"
+
+#include "tpm2/tpm2.hpp"
+
+#include <phosphor-logging/lg2.hpp>
+#include <sdbusplus/async.hpp>
+
+PHOSPHOR_LOG2_USING;
+
+TPMDevice::TPMDevice(sdbusplus::async::context& ctx, enum TPMType tpmType,
+ uint8_t tpmIndex, SoftwareConfig& config,
+ ManagerInf::SoftwareManager* parent) :
+ Device(ctx, config, parent, {RequestedApplyTimes::OnReset})
+{
+ switch (tpmType)
+ {
+ case TPMType::TPM2:
+ tpmInterface = std::make_unique<TPM2Interface>(ctx, tpmIndex);
+ break;
+ default:
+ tpmInterface = nullptr;
+ error("Unsupported TPM type: {TYPE}", "TYPE",
+ static_cast<int>(tpmType));
+ break;
+ }
+}
+
+sdbusplus::async::task<bool> TPMDevice::updateDevice(const uint8_t* image,
+ size_t imageSize)
+{
+ if (tpmInterface == nullptr)
+ {
+ error("TPM interface is not initialized");
+ co_return false;
+ }
+
+ setUpdateProgress(10);
+
+ if (!co_await tpmInterface->updateFirmware(image, imageSize))
+ {
+ error("Failed to update TPM firmware");
+ co_return false;
+ }
+
+ setUpdateProgress(100);
+ debug("Successfully updated TPM");
+ co_return true;
+}
+
+sdbusplus::async::task<std::string> TPMDevice::getVersion()
+{
+ std::string version = "Unknown";
+
+ if (tpmInterface == nullptr)
+ {
+ error("TPM interface is not initialized");
+ co_return version;
+ }
+
+ if (!co_await tpmInterface->getVersion(version))
+ {
+ error("Failed to get TPM version");
+ }
+
+ co_return version;
+}