linux-kernel - Re: [PATCH] x86/sgx: Add a basic NUMA allocation scheme to sgx_alloc_epc

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Date:   Tue, 23 Feb 2021 11:20:55 -0800
From:   Dave Hansen <dave.hansen@...el.com>
To:     Jarkko Sakkinen <jarkko@...nel.org>
Cc:     linux-sgx@...r.kernel.org, haitao.huang@...el.com,
        dan.j.williams@...el.com, Thomas Gleixner <tglx@...utronix.de>,
        Ingo Molnar <mingo@...hat.com>, Borislav Petkov <bp@...en8.de>,
        x86@...nel.org, "H. Peter Anvin" <hpa@...or.com>,
        Dave Hansen <dave.hansen@...ux.intel.com>,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH] x86/sgx: Add a basic NUMA allocation scheme to
 sgx_alloc_epc_page()

On 2/23/21 11:17 AM, Jarkko Sakkinen wrote:
> Instead, let's just:
> 
> 1. Have a global sgx_free_epc_list and remove sgx_epc_section.
>    Pages from this are allocated from this in LIFO fashion.
> 2. Instead add struct list_head node_list and use that for node
>    associated pages.
> 3. Replace 'int section' with 'int node'.

I was thinking of something similar.

I'm fine with this approach.