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[$] The misc control group
Tuesday May 18, 2021. 11:39 PM , from LWN.net
Control groups (cgroups) are meant to limit access to a shared resource among
processes in the system. One such resource is the values used to specify an encrypted-memory region for a virtual machine, such as the address-space identifiers (ASIDs) used by the AMD Secure Encrypted Virtualization (SEV) feature. Vipin Sharma set out to add a control group for these ASIDs back in September; based on the feedback, though, he expanded the idea into a controller to track and limit any countable resource. The patch set became the controller for the misc control group and has been merged for Linux 5.13.
https://lwn.net/Articles/856438/rss
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