From: Amit Daniel Kachhap <amit.kachhap@arm.com>
To: linux-arm-kernel@lists.infradead.org
Cc: Mark Rutland <mark.rutland@arm.com>, Baoquan He <bhe@redhat.com>,
Catalin Marinas <catalin.marinas@arm.com>,
Bhupesh Sharma <bhsharma@redhat.com>,
Dave Young <dyoung@redhat.com>,
kexec@lists.infradead.org, linux-kernel@vger.kernel.org,
James Morse <james.morse@arm.com>,
Amit Daniel Kachhap <amit.kachhap@arm.com>,
Vincenzo Frascino <Vincenzo.Frascino@arm.com>,
Will Deacon <will@kernel.org>
Subject: [PATCH v3 2/2] Documentation/vmcoreinfo: Add documentation for 'KERNELPACMASK'
Date: Mon, 11 May 2020 18:31:56 +0530 [thread overview]
Message-ID: <1589202116-18265-2-git-send-email-amit.kachhap@arm.com> (raw)
In-Reply-To: <1589202116-18265-1-git-send-email-amit.kachhap@arm.com>
Add documentation for KERNELPACMASK variable being added to the 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@arm.com>
Cc: Will Deacon <will@kernel.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Dave Young <dyoung@redhat.com>
Cc: Baoquan He <bhe@redhat.com>
Signed-off-by: Amit Daniel Kachhap <amit.kachhap@arm.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..e4ee8b2 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
+-------------
+
+The mask to extract the Pointer Authentication Code from a kernel virtual
+address.
+
arm
===
--
2.7.4
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next prev parent reply other threads:[~2020-05-11 13:01 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-05-11 13:01 [PATCH v3 1/2] arm64/crash_core: Export KERNELPACMASK in vmcoreinfo Amit Daniel Kachhap
2020-05-11 13:01 ` Amit Daniel Kachhap [this message]
2020-05-11 16:27 ` Will Deacon
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