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| author | Amit Daniel Kachhap <amit.kachhap@arm.com> | 2020-05-11 16:01:56 +0300 |
|---|---|---|
| committer | Will Deacon <will@kernel.org> | 2020-05-11 16:29:10 +0300 |
| commit | c0fc00ec6304a8e2e438ca1688b243815084dc50 (patch) | |
| tree | 39885b15843bf96990c3e9b79ee6dcb43d40831e /Documentation/admin-guide/kdump | |
| parent | 203b1152d18c04823f73b843eb3b0ad646e4dbb2 (diff) | |
| download | linux-c0fc00ec6304a8e2e438ca1688b243815084dc50.tar.xz | |
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 <amit.kachhap@arm.com>
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>
Link: https://lore.kernel.org/r/1589202116-18265-2-git-send-email-amit.kachhap@arm.com
Signed-off-by: Will Deacon <will@kernel.org>
Diffstat (limited to 'Documentation/admin-guide/kdump')
| -rw-r--r-- | Documentation/admin-guide/kdump/vmcoreinfo.rst | 6 |
1 files changed, 6 insertions, 0 deletions
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 === |