KVM_SEV_SNP_PAGE_TYPE_ZERO
if (WARN_ON_ONCE(sev_populate_args->type != KVM_SEV_SNP_PAGE_TYPE_ZERO && !src_page))
params.type != KVM_SEV_SNP_PAGE_TYPE_ZERO &&
src = params.type == KVM_SEV_SNP_PAGE_TYPE_ZERO ? NULL : u64_to_user_ptr(params.uaddr);
if (params.type != KVM_SEV_SNP_PAGE_TYPE_ZERO)