linux-kernel - Re: [PATCH v4 5/6] x86/sgx: Hook sgx_memory

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Message-ID: <49fccddbbf92279f575409851a9c682495146ad8.camel@kernel.org>
Date:   Fri, 03 Sep 2021 09:12:58 +0300
From:   Jarkko Sakkinen <jarkko@...nel.org>
To:     Tony Luck <tony.luck@...el.com>,
        Sean Christopherson <seanjc@...gle.com>,
        Dave Hansen <dave.hansen@...el.com>
Cc:     Cathy Zhang <cathy.zhang@...el.com>, x86@...nel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH v4 5/6] x86/sgx: Hook sgx_memory_failure() into mainline
 code

On Fri, 2021-08-27 at 12:55 -0700, Tony Luck wrote:
> +#ifdef CONFIG_X86_SGX
> +int sgx_memory_failure(unsigned long pfn, int flags);
> +bool sgx_is_epc_page(u64 paddr);
> +#else
> +static inline int sgx_memory_failure(unsigned long pfn, int flags)
> +{
> +	return -ENXIO;
> +}
> +
> +static inline bool sgx_is_epc_page(u64 paddr)
> +{
> +	return false;
> +}
> +#endif

These decl's should be in arch/x86/include/asm/sgx.h, and as part of
patch that contains the implementations.

/Jarkko