From c0fc00ec6304a8e2e438ca1688b243815084dc50 Mon Sep 17 00:00:00 2001 From: Amit Daniel Kachhap Date: Mon, 11 May 2020 18:31:56 +0530 Subject: [PATCH] Documentation/vmcoreinfo: Add documentation for 'KERNELPACMASK' 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. Signed-off-by: Amit Daniel Kachhap Cc: Catalin Marinas Cc: Will Deacon Cc: Mark Rutland Cc: Dave Young Cc: Baoquan He Link: https://lore.kernel.org/r/1589202116-18265-2-git-send-email-amit.kachhap@arm.com Signed-off-by: Will Deacon --- 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 007a6b86e0ee..e4ee8b2db604 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 ===