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hyperv: Allow userland to ro-mmap reference TSC page

Description

hyperv: Allow userland to ro-mmap reference TSC page

This paves way to implement VDSO for the enlightened time counter.

Reviewed by: kib
MFC after: 1 week
Sponsored by: Microsoft
Differential Revision: https://reviews.freebsd.org/D8768

Details

Provenance
sepheAuthored on
Reviewer
kib
Differential Revision
D8768: hyperv: Allow userland to ro-mmap reference TSC page
Parents
rS310100: cxgbe(4): Deal with compressed error vectors.
Branches
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Tags
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