Konstantin Belousov 17edf152e5 Control for Special Register Buffer Data Sampling mitigation. ... New microcode update for Intel enables mitigation for SRBDS, which slows down RDSEED and related instructions. The update also provides a control to limit the mitigation to SGX enclaves, which should restore the speed of random generator by the cost of potential cross-core bufer sampling. See https://software.intel.com/security-software-guidance/insights/deep-dive-special-register-buffer-data-sampling GIve the user control over it. Reviewed by: markj Sponsored by: The FreeBSD Foundation MFC after: 1 week Differential revision: https://reviews.freebsd.org/D25221		2020-06-12 22:14:45 +00:00
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cpuctl.c	Control for Special Register Buffer Data Sampling mitigation.	2020-06-12 22:14:45 +00:00