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My understanding was that a CPU microcode update is stored in non-volatile memory on the motherboard and is loaded by the BIOS or UEFI into volatile memory on the CPU during boot. And because the ...
Video gamers know about cheat codes, but assembly language programmers are often in search of undocumented instructions. One way to find them is to map out all of a CPU’s opcodes and where there are ...
What just happened? AMD has confirmed a security vulnerability in some of its processors, which was inadvertently revealed through a beta BIOS update from Asus. The flaw, described as a "microcode ...
On January 8th Intel released new Linux Processor microcode data files that can be used to mitigate the Spectre and and Meltdown vulnerabilities in Intel CPUs. Using microcode files, an operating ...
Gregory Tang and Rajat Bahl, AMD, Inc. Alex Wakefield and Padmaraj Ramachandran, Synopsys Inc. As microprocessor designs have grown considerably in complexity, the use of hand-written directed tests ...
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AMD Zen 5 CPUs also affected by microcode vulnerability — Granite Ridge, Turin, Ryzen AI 300, and Fire Range at risk
Last month, the Google Security Team identified a security vulnerability in AMD's CPUs ranging from Zen 1 to Zen 4 dubbed "EntrySign" that allowed malicious users with ring 0 access to load unsigned ...
What just happened? A significant vulnerability, known as EntrySign, has been uncovered by Google security researchers, affecting all AMD Zen processors from Zen 1 to Zen 4. This flaw allows attackers ...
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