On Wed, Aug 04, 2021 at 08:58:12AM +0000, Oliver Upton wrote: > The KVM_GET_REG_LIST vCPU ioctl returns a list of supported registers > for a given vCPU. Add a helper to check if a register exists in the list > of supported registers. > > Signed-off-by: Oliver Upton <[email protected]> > --- > .../testing/selftests/kvm/include/kvm_util.h | 2 ++ > tools/testing/selftests/kvm/lib/kvm_util.c | 19 +++++++++++++++++++ > 2 files changed, 21 insertions(+) > > diff --git a/tools/testing/selftests/kvm/include/kvm_util.h > b/tools/testing/selftests/kvm/include/kvm_util.h > index 1b3ef5757819..077082dd2ca7 100644 > --- a/tools/testing/selftests/kvm/include/kvm_util.h > +++ b/tools/testing/selftests/kvm/include/kvm_util.h > @@ -215,6 +215,8 @@ void vcpu_fpu_get(struct kvm_vm *vm, uint32_t vcpuid, > struct kvm_fpu *fpu); > void vcpu_fpu_set(struct kvm_vm *vm, uint32_t vcpuid, > struct kvm_fpu *fpu); > + > +bool vcpu_has_reg(struct kvm_vm *vm, uint32_t vcpuid, uint64_t reg_id); > void vcpu_get_reg(struct kvm_vm *vm, uint32_t vcpuid, struct kvm_one_reg > *reg); > void vcpu_set_reg(struct kvm_vm *vm, uint32_t vcpuid, struct kvm_one_reg > *reg); > #ifdef __KVM_HAVE_VCPU_EVENTS > diff --git a/tools/testing/selftests/kvm/lib/kvm_util.c > b/tools/testing/selftests/kvm/lib/kvm_util.c > index 0fe66ca6139a..a5801d4ed37d 100644 > --- a/tools/testing/selftests/kvm/lib/kvm_util.c > +++ b/tools/testing/selftests/kvm/lib/kvm_util.c > @@ -1823,6 +1823,25 @@ void vcpu_fpu_set(struct kvm_vm *vm, uint32_t vcpuid, > struct kvm_fpu *fpu) > ret, errno, strerror(errno)); > } > > +bool vcpu_has_reg(struct kvm_vm *vm, uint32_t vcpuid, uint64_t reg_id) > +{ > + struct kvm_reg_list *list; > + bool ret = false; > + uint64_t i; > + > + list = vcpu_get_reg_list(vm, vcpuid); > + > + for (i = 0; i < list->n; i++) { > + if (list->reg[i] == reg_id) { > + ret = true; > + break; > + } > + } > + > + free(list); > + return ret; > +} > + > void vcpu_get_reg(struct kvm_vm *vm, uint32_t vcpuid, struct kvm_one_reg > *reg) > { > int ret; > -- > 2.32.0.605.g8dce9f2422-goog >
Reviewed-by: Andrew Jones <[email protected]> _______________________________________________ kvmarm mailing list [email protected] https://lists.cs.columbia.edu/mailman/listinfo/kvmarm
