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

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Message-ID: <CAKgze5Yw6=PjY9+cn=FKX5UsiSon5rVOK_Gc-3Hs8dQspSFaYA@mail.gmail.com>
Date:   Sat, 4 Dec 2021 13:35:15 -0300
From:   Martin Fernandez <martin.fernandez@...ypsium.com>
To:     Greg KH <gregkh@...uxfoundation.org>
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 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
+Contact:	Martin Fernandez <martin.fernandez@...ypsium.com>
+Users:		fwupd
+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.
\ No newline at end of file