On Wed, Mar 15, 2023 at 02:17:28AM +0000, Anish Moorthy wrote:
[...]
> @@ -6172,3 +6181,22 @@ int kvm_vm_create_worker_thread(struct kvm *kvm, kvm_vm_thread_fn_t thread_fn,
>
> return init_context.err;
> }
> +
> +inline int kvm_memfault_exit_or_efault(
> + struct kvm_vcpu *vcpu, uint64_t gpa, uint64_t len, uint64_t exit_flags)
> +{
> + if (!(vcpu->kvm->memfault_exit_reasons & exit_flags))
> + return -EFAULT;
<snip>
> + vcpu->run->exit_reason = KVM_EXIT_MEMORY_FAULT;
> + vcpu->run->memory_fault.gpa = gpa;
> + vcpu->run->memory_fault.len = len;
> + vcpu->run->memory_fault.flags = exit_flags;
</snip>
Please spin this off into a helper and make use of it on the arm64 side.
> + return -1;
> +}
> +
> +bool kvm_memfault_exit_flags_valid(uint64_t reasons)
> +{
> + uint64_t valid_flags = KVM_MEMFAULT_REASON_UNKNOWN;
> +
> + return !(reasons & !valid_flags);
> +}
> --
> 2.40.0.rc1.284.g88254d51c5-goog
>
>
--
Thanks,
Oliver
