CVSROOT:        /cvs
Module name:    src
Changes by:        2018/03/12 23:10:40

Modified files:
        sys/arch/amd64/amd64: cpu.c 

Log message:
We don't save+restore FS.base and GS.base on every context switch but
rather reset GS.base and restore FS.base to what was set via __tcb_set(),
so we can't really support the wr{fs,gs}base instructions by userspace.
Enabling CR4_FSGSBASE is therefore incorrect so stop doing so.

ok jsg@ krw@

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