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Linux Patch for ACPI Device ID MSFT010100
Introduction
ACPI (Advanced Configuration and Power Interface) is a hardware abstraction layer that provides a standardized interface for operating systems to access and manage hardware devices. In Linux, ACPI is implemented through a kernel module called acpi.
Issue with MSFT010100
MSFT010100 is an ACPI device ID referring to the Intel R Management Engine Interface part of TPM. There are TPM drivers in Linux that can recognize this device, but there is a known issue where these drivers may fail to claim the resource for the device.
Linux Patch
To address this issue, a patch has been created for the Linux kernel. The patch adds a new function to the acpi kernel module that prints the resource range if the device fails to claim it. This information can be used to determine which other device or driver has already claimed the resource.
Usage
To use the patch, you can apply it to the Linux kernel source code and rebuild the kernel. Once the patch has been applied, the kernel will print the resource range for any ACPI device that fails to claim its resource.
Benefits
The patch provides the following benefits:
- Helps to identify which device or driver is conflicting with the TPM driver
- Provides information to help resolve the conflict
- Improves the stability of the Linux system
Conclusion
The Linux patch for ACPI device ID MSFT010100 is a useful tool for diagnosing and resolving resource conflicts. By adding a new function to the acpi kernel module, the patch provides information that can be used to troubleshoot and fix the issue.
If you are experiencing issues with the TPM driver in Linux, it is recommended to apply the patch and rebuild the kernel.
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