KVM: arm64: selftests: Add guest support to get the vcpuid

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At times, such as when in the interrupt handler, the guest wants
to get the vcpuid that it's running on to pull the per-cpu private
data. As a result, introduce guest_get_vcpuid() that returns the
vcpuid of the calling vcpu. The interface is architecture
independent, but defined only for arm64 as of now.

Suggested-by: Reiji Watanabe <reijiw@google.com>
Signed-off-by: Raghavendra Rao Ananta <rananta@google.com>
Reviewed-by: Ricardo Koller <ricarkol@google.com>
Reviewed-by: Reiji Watanabe <reijiw@google.com>
Reviewed-by: Andrew Jones <drjones@redhat.com>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20211007233439.1826892-11-rananta@google.com

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

parent 0226cd531c

commit 17229bdc86

2 changed files with 8 additions and 0 deletions

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tools/testing/selftests/kvm/include/kvm_util.h

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tools/testing/selftests/kvm/lib/aarch64/processor.c

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