linux-kernel - [PATCH v4 3/3] x86/sgx: Document SGX_MemTotal to Documentation/x86/meminfo.rst

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Message-Id: <20210910001726.811497-3-jarkko@kernel.org>
Date:   Fri, 10 Sep 2021 03:17:26 +0300
From:   Jarkko Sakkinen <jarkko@...nel.org>
To:     Thomas Gleixner <tglx@...utronix.de>,
        Ingo Molnar <mingo@...hat.com>, Borislav Petkov <bp@...en8.de>,
        x86@...nel.org, "H. Peter Anvin" <hpa@...or.com>,
        Jonathan Corbet <corbet@....net>,
        Jarkko Sakkinen <jarkko@...nel.org>,
        Dave Hansen <dave.hansen@...ux.intel.com>
Cc:     Dave Hansen <dave.hansen@...el.com>, linux-kernel@...r.kernel.org,
        linux-doc@...r.kernel.org, linux-sgx@...r.kernel.org
Subject: [PATCH v4 3/3] x86/sgx: Document SGX_MemTotal to Documentation/x86/meminfo.rst

Document SGX_MemTotal field of /proc/meminfo to
Documentation/x86/meminfo.rst. This is a new file for x86 specific
meminfo fields.

Suggested-by: Dave Hansen <dave.hansen@...el.com>
Signed-off-by: Jarkko Sakkinen <jarkko@...nel.org>
---
v4:
* A new patch.
 Documentation/x86/meminfo.rst | 11 +++++++++++
 1 file changed, 11 insertions(+)
 create mode 100644 Documentation/x86/meminfo.rst

diff --git a/Documentation/x86/meminfo.rst b/Documentation/x86/meminfo.rst
new file mode 100644
index 000000000000..999b676a04a8
--- /dev/null
+++ b/Documentation/x86/meminfo.rst
@@ -0,0 +1,11 @@
+This document describes x86 specific fields of /proc/meminfo.
+
+Supplemental fields for /proc/meminfo
+=====================================
+
+SGX_MemTotal
+                Total usable physical SGX memory, also known as Enclave
+                Page Cache (EPC), in kB's. This is the physical memory
+                used for enclave pages. It is below the amount set in
+                the BIOS: a portion of that memory is required for
+                the state of the enclave pages.
-- 
2.25.1