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Introduce ipi_self_from_nmi().

Description

Introduce ipi_self_from_nmi().

It allows safe IPI sending to current CPU from NMI context.

Unlike other ipi_*() functions this waits for delivery to leave LAPIC in
a state safe for interrupted code.

MFC after: 2 weeks
Sponsored by: iXsystems, Inc.

Details

Provenance
mavAuthored on
Parents
rS363494: Merge llvm, clang, compiler-rt, libc++, libunwind, lld, lldb and openmp
Branches
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