IBM POWER9 CPUs Need To Flush Their L1 Cache Between Privilege Boundaries Due To New Bug Written by Michael Larabel in Hardware on 20 November 2020 at 07:09 AM EST. 16 Comments CVE-2020-4788 is now public and it's not good for IBM and their POWER9 processors... This new vulnerability means these IBM processors need to be flushing their L1 data cache between privilege boundaries, similar to other r
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IBMは同社が開発したPOWERプロセッサの命令セット(POWER Instruction Set Architecture:ISA)をOpenPOWER Foundaionへ寄贈し、誰でも無償で利用できるオープンな仕様にすることを発表しました(IBMの発表。OpenPOWER Foundationの発表) POWER ISAだけでなく、プロセッサとメモリのあいだのデータ転送を効率的に行うための仕様であるOpen Coherent Accelerator Processor Interface(OpenCAPI)およびOpen Memory Interface(OMI)もあわせてオープンになりました。 "We're taking the POWER ISA, licensing it to the #OpenPOWER Foundation so anyone can implement
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