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Updated AMD Zen 1 Through Zen 3 CPU Microcode Published

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  • middy
    replied
    Originally posted by boxie View Post
    Given the recent bios updates for x370 I wonder if it is related?
    i had a similar thought. first gen ryzen might need firmware updates to work on newer agesa.

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  • boxie
    replied
    Given the recent bios updates for x370 I wonder if it is related?

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  • Nuc!eoN
    replied
    Very weird.

    I hope it does not have anything to to with their PSP module.

    EDIT, for those that do not know what it is:
    Originally posted by Lasergurke3D
    The PSP is an ARM Cortex A5 with some private SRAM, a hardware crypto engine (a rather impressive one, if I may add), and on chip boot rom. The PSP has unlimited DMA access into every memory region, and can even override the IOMMU.

    It features an fully fledged operating system, called "Kinibi" (formerly <t-base) by Trustonic. It loads various drivers and applications during bootup. One of them is the fTPM, which is a trusted application emulating a TPM module.

    On Ryzen processors with integrated graphics, HDCP is handled by the PSP. It is also responsible for DRAM initialization, and supervises the boot process.
    Last edited by Nuc!eoN; 10 April 2022, 09:46 AM.

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  • Jabberwocky
    replied
    Not even making the effort of lying to us. I feel neglected. xD

    Seriously, thanks for observing and documenting this Michael.

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  • Updated AMD Zen 1 Through Zen 3 CPU Microcode Published

    Phoronix: Updated AMD Zen 1 Through Zen 3 CPU Microcode Published

    On Friday AMD published new CPU microcode files for both Family 17h and Family 19h for Zen 1/2/3 processors. At the moment there isn't any public insight into the changes with this updated microcode but it may be significant...

    https://www.phoronix.com/scan.php?pa...2022-AMD-ucode
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