KVM: arm64: selftests: Add support for cpu_relax

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Implement the guest helper routine, cpu_relax(), to yield
the processor to other tasks.

The function was derived from
arch/arm64/include/asm/vdso/processor.h.

Signed-off-by: Raghavendra Rao Ananta <rananta@google.com>
Reviewed-by: Oliver Upton <oupton@google.com>
Reviewed-by: Andrew Jones <drjones@redhat.com>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20211007233439.1826892-6-rananta@google.com

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Raghavendra Rao Ananta 2021-10-07 23:34:29 +00:00 • committed by Marc Zyngier

parent b3c79c6130

commit 740826ec02

1 changed files with 5 additions and 0 deletions

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tools/testing/selftests/kvm/include/aarch64/processor.h

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