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| author | Raghavendra Rao Ananta <rananta@google.com> | 2021-10-08 02:34:34 +0300 |
|---|---|---|
| committer | Marc Zyngier <maz@kernel.org> | 2021-10-17 13:17:21 +0300 |
| commit | 17229bdc86c9e618e8832b5ca8451e367e07511b (patch) | |
| tree | 31afdf79e928bc8f41bd4bcfc5d73226eb40f8f9 /tools/testing/selftests/kvm/include/kvm_util.h | |
| parent | 0226cd531c587e0cd51e5ce5622051d319182506 (diff) | |
| download | linux-17229bdc86c9e618e8832b5ca8451e367e07511b.tar.xz | |
KVM: arm64: selftests: Add guest support to get the vcpuid
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
Diffstat (limited to 'tools/testing/selftests/kvm/include/kvm_util.h')
| -rw-r--r-- | tools/testing/selftests/kvm/include/kvm_util.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/tools/testing/selftests/kvm/include/kvm_util.h b/tools/testing/selftests/kvm/include/kvm_util.h index 010b59b13917..bcf05f5381ed 100644 --- a/tools/testing/selftests/kvm/include/kvm_util.h +++ b/tools/testing/selftests/kvm/include/kvm_util.h @@ -400,4 +400,6 @@ uint64_t get_ucall(struct kvm_vm *vm, uint32_t vcpu_id, struct ucall *uc); int vm_get_stats_fd(struct kvm_vm *vm); int vcpu_get_stats_fd(struct kvm_vm *vm, uint32_t vcpuid); +uint32_t guest_get_vcpuid(void); + #endif /* SELFTEST_KVM_UTIL_H */ |