linux-kernel - [PATCH 2/2] Documentation/vmcoreinfo: Add documentation for 'KERNELPACMASK'

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Date:   Thu, 19 Mar 2020 13:09:11 +0530
From:   Amit Daniel Kachhap <amit.kachhap@....com>
To:     linux-arm-kernel@...ts.infradead.org
Cc:     kexec@...ts.infradead.org, linux-kernel@...r.kernel.org,
        Bhupesh Sharma <bhsharma@...hat.com>,
        Vincenzo Frascino <Vincenzo.Frascino@....com>,
        Mark Rutland <mark.rutland@....com>,
        Catalin Marinas <catalin.marinas@....com>,
        Will Deacon <will@...nel.org>,
        Amit Daniel Kachhap <amit.kachhap@....com>,
        James Morse <james.morse@....com>,
        Dave Anderson <anderson@...hat.com>
Subject: [PATCH 2/2] Documentation/vmcoreinfo: Add documentation for 'KERNELPACMASK'

Add documentation for KERNELPACMASK variable being added to vmcoreinfo.

It indicates the PAC bits mask information of signed kernel pointers if
ARMv8.3-A Pointer Authentication feature is present.

Cc: Catalin Marinas <catalin.marinas@....com>
Cc: Will Deacon <will@...nel.org>
Cc: Mark Rutland <mark.rutland@....com>
Cc: James Morse <james.morse@....com>
Cc: Dave Anderson <anderson@...hat.com>
Signed-off-by: Amit Daniel Kachhap <amit.kachhap@....com>
---
 Documentation/admin-guide/kdump/vmcoreinfo.rst | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/Documentation/admin-guide/kdump/vmcoreinfo.rst b/Documentation/admin-guide/kdump/vmcoreinfo.rst
index 007a6b8..5cc3ee6 100644
--- a/Documentation/admin-guide/kdump/vmcoreinfo.rst
+++ b/Documentation/admin-guide/kdump/vmcoreinfo.rst
@@ -393,6 +393,12 @@ KERNELOFFSET
 The kernel randomization offset. Used to compute the page offset. If
 KASLR is disabled, this value is zero.
 
+KERNELPACMASK
+-------------
+
+Indicates the PAC bits mask information if Pointer Authentication is
+enabled and address authentication feature is present.
+
 arm
 ===
 
-- 
2.7.4