On Tue, Oct 10, 2017 at 05:32:53PM +0300, Jarkko Sakkinen wrote:
> diff --git a/drivers/platform/x86/intel_sgx/sgx_main.c b/drivers/platform/x86/intel_sgx/sgx_main.c
> new file mode 100644
> index 000000000000..2ad2dc88edff
> --- /dev/null
> +++ b/drivers/platform/x86/intel_sgx/sgx_main.c
>
> +static dev_t sgx_devt;
> +
> +static void sgx_dev_release(struct device *dev)
> +{
> + struct sgx_context *ctx = container_of(dev, struct sgx_context, dev);
> + kfree(ctx);
> +}
> +
> +static struct sgx_context *sgx_ctx_alloc(struct device *parent)
> +{
> + struct sgx_context *ctx;
> +
> + ctx = kzalloc(sizeof(*ctx), GFP_KERNEL);
> + if (!ctx)
> + return ERR_PTR(-ENOMEM);
> +
> + device_initialize(&ctx->dev);
> +
> + ctx->dev.bus = &sgx_subsys;
> + ctx->dev.parent = parent;
> + ctx->dev.devt = MKDEV(MAJOR(sgx_devt), 0);
> + ctx->dev.release = sgx_dev_release;
> +
> + dev_set_name(&ctx->dev, "sgx");
/dev/sgx is created with 0600 permissions, does access to SGX really
need to be restricted to root by default?
> +
> + cdev_init(&ctx->cdev, &sgx_fops);
> + ctx->cdev.owner = THIS_MODULE;
> +
> + dev_set_drvdata(parent, ctx);
> +
> + return ctx;
> +}
> +
