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Linux 6.14 Looks To Support AMD's Zen 5 RMPREAD Instruction & Segmented RMP Mode
For further enhancing the AMD EPYC virtualization experience on Linux, the upcoming Linux 6.14 looks like it will support Zen 5's new RMPREAD instruction and segmented RMP mode as part of Secure Encrypted Virtualization Secure Nested Paging (SEV-SNP).
RMPREAD is a new instruction with Zen 5 processors for reading architectural-defined RMP (Reverse Map Table) entries. With it making it now to a TIP branch weeks before the Linux 6.14 merge window opens in late January, these feature patches should be in the next kernel barring any last minute problems.About The AuthorMichael Larabel is the principal author of Phoronix.com and founded the site in 2004 with a focus on enriching the Linux hardware experience. Michael is also the lead developer of the Phoronix Test Suite, Phoromatic, and OpenBenchmarking.org automated benchmarking software.
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