MFC 310048,310101,310239

310048
    hyperv: Implement "enlightened" time counter, which is rdtsc based.

    Reviewed by:    kib
    Sponsored by:   Microsoft
    Differential Revision:  https://reviews.freebsd.org/D8763

310101
    hyperv: Allow userland to ro-mmap reference TSC page

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

    Reviewed by:    kib
    Sponsored by:   Microsoft
    Differential Revision:  https://reviews.freebsd.org/D8768

310239
    hyperv: Implement userspace gettimeofday(2) with Hyper-V reference TSC

    This 6 times gettimeofday performance, as measured by
    tools/tools/syscall_timing

    Reviewed by:    kib
    Sponsored by:   Microsoft
    Differential Revision:  https://reviews.freebsd.org/D8789

0 files changed, 0 insertions, 0 deletions