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Date:   Mon, 8 Nov 2021 07:21:55 +0100
From:   Greg Kroah-Hartman <gregkh@linuxfoundation.org>
To:     Jarkko Sakkinen <jarkko@kernel.org>
Cc:     Thomas Gleixner <tglx@linutronix.de>,
        Ingo Molnar <mingo@redhat.com>, Borislav Petkov <bp@alien8.de>,
        x86@kernel.org, "H. Peter Anvin" <hpa@zytor.com>,
        Dave Hansen <dave.hansen@linux.intel.com>,
        "Rafael J. Wysocki" <rafael@kernel.org>, reinette.chatre@intel.com,
        tony.luck@intel.com, nathaniel@profian.com,
        linux-kernel@vger.kernel.org, linux-sgx@vger.kernel.org
Subject: Re: [PATCH v12 2/2] x86/sgx: Add an attribute for the amount of SGX
 memory in a NUMA node
Message-ID: <YYjCA/69f/l3NwXn@kroah.com>
References: <20211107173233.417034-1-jarkko@kernel.org>
 <20211107173233.417034-2-jarkko@kernel.org>
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On Sun, Nov 07, 2021 at 07:32:33PM +0200, Jarkko Sakkinen wrote:
> The amount of SGX memory on the system is determined by the BIOS and it
> varies wildly between systems.  It can be from dozens of MB's on desktops
> or VM's, up to many GB's on servers.  Just like for regular memory, it is
> sometimes useful to know the amount of usable SGX memory in the system.
> 
> Introduce CONFIG_HAVE_ARCH_NODE_DEV_GROUP opt-in flag to expose an arch
> specific attribute group, and add an attribute for the amount of SGX
> memory in bytes to each NUMA node:
> 
> /sys/devices/system/node/nodeX/x86/sgx_total_bytes
> 
> Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
> Signed-off-by: Jarkko Sakkinen <jarkko@kernel.org>

Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>