linux-kernel - Re: [PATCH v3 5/5] drivers/node: Show in sysfs node's crypto capabilities

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Message-ID: <YaujvjBFsb3ricUx@kroah.com>
Date:   Sat, 4 Dec 2021 18:22:06 +0100
From:   Greg KH <gregkh@...uxfoundation.org>
To:     Martin Fernandez <martin.fernandez@...ypsium.com>
Cc:     linux-kernel@...r.kernel.org, linux-efi@...r.kernel.org,
        platform-driver-x86@...r.kernel.org, linux-mm@...ck.org,
        tglx@...utronix.de, mingo@...hat.com, bp@...en8.de,
        dave.hansen@...ux.intel.com, x86@...nel.org, hpa@...or.com,
        ardb@...nel.org, dvhart@...radead.org, andy@...radead.org,
        rafael@...nel.org, rppt@...nel.org, akpm@...ux-foundation.org,
        daniel.gutson@...ypsium.com, hughsient@...il.com,
        alex.bazhaniuk@...ypsium.com, alison.schofield@...el.com
Subject: Re: [PATCH v3 5/5] drivers/node: Show in sysfs node's crypto
 capabilities

On Sat, Dec 04, 2021 at 01:35:15PM -0300, Martin Fernandez wrote:
> On 12/4/21, Greg KH <gregkh@...uxfoundation.org> wrote:
> >
> > You forgot a Documentation/ABI/ update for this new sysfs file you
> > added :(
> >
> 
> Damn, I forgot to add it to the patch. It will be in my next patch,
> this is what it looks like:
> 
> diff --git a/Documentation/ABI/testing/sysfs-devices-node
> b/Documentation/ABI/testing/sysfs-devices-node
> new file mode 100644
> index 000000000000..ab46fdd3f6a8
> --- /dev/null
> +++ b/Documentation/ABI/testing/sysfs-devices-node
> @@ -0,0 +1,10 @@
> +What:		/sys/devices/system/node/nodeX/crypto_capable
> +Date:		October 2021

October is long gone :(

> +Contact:	Martin Fernandez <martin.fernandez@...ypsium.com>
> +Users:		fwupd

Maybe a link to what 'fwupd' is?

> +Description:
> +		This value is 1 if all system memory in this node is
> +		marked with EFI_MEMORY_CPU_CRYPTO, indicating that the
> +		system memory is capable of being protected with the
> +		CPU’s memory cryptographic capabilities. It is 0
> +		otherwise.

thanks,

greg k-h