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Microsoft Surface Pro 2 TPM firmware update issues

https://www.computerworld.com/article/3289630/microsoft-windows/surface-pro-2-owners-wonder-will-microsoft-ship-tpm-firmware-that-works.html

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AMI Adds TPM Support on Arm-based Systems Running Aptio® V UEFI Firmware

AMI has announced support for TPM on Arm®-based systems running AMI’s flagship Aptio® V UEFI Firmware. […] Previously, AMI only provided TPM support for x86 platforms. With the growing need to extend TPM support for additional platforms, AMI has added TPM support for Arm-based systems currently running AMI’s Aptio® V UEFI firmware. The added TPM support for Arm-based systems includes features specifically for the Arm architecture such as TPM driver support within Arm® TrustZone® technology and Linux OS support. The Arm TrustZone TPM Firmware can be accessed by the BIOS and OS via the Command Response Buffer interface using Secure Monitor calls. Other generic features supported by TPM include cryptographic algorithms and measurement of SecureBoot variables.[…]

https://ami.com/en/news/press-releases/american-megatrends-adds-tpm-support-on-armbased-systems-running-aptio-v-uefi-firmware/

 

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