Re: [PATCH v13 06/13] x86/sgx: Detect Intel SGX

From: Andy Shevchenko
Date: Mon Sep 03 2018 - 10:26:58 EST


On Mon, Aug 27, 2018 at 9:57 PM Jarkko Sakkinen
<jarkko.sakkinen@xxxxxxxxxxxxxxx> wrote:
>
> From: Sean Christopherson <sean.j.christopherson@xxxxxxxxx>
>
> Intel(R) SGX is a set of CPU instructions that can be used by applications
> to set aside private regions of code and data. The code outside the enclave
> is disallowed to access the memory inside the enclave by the CPU access
> control.
>
> Add a check for SGX to arch/x86 and a new config option, INTEL_SGX_CORE.
> Expose a boolean variable 'sgx_enabled' to query whether or not the SGX
> support is available.

> + prompt "Intel SGX core functionality"
> + def_bool n

Default 'default' is 'n'. Perhaps changing prompt to bool will make it
one line less.

> +#include <asm/sgx.h>
> +#include <asm/sgx_pr.h>

Don't we put linux/* followed by asm/* ?

> +#include <linux/freezer.h>
> +#include <linux/highmem.h>
> +#include <linux/kthread.h>
> +#include <linux/ratelimit.h>
> +#include <linux/sched/signal.h>
> +#include <linux/slab.h>

--
With Best Regards,
Andy Shevchenko