On 3/20/20 5:26 AM, Amit Kachhap wrote:
Hi,
On 3/19/20 7:21 PM, John Donnelly wrote:
On 3/19/20 2:39 AM, Amit Daniel Kachhap wrote:
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 <[email protected]>
Cc: Will Deacon <[email protected]>
Cc: Mark Rutland <[email protected]>
Cc: James Morse <[email protected]>
Cc: Dave Anderson <[email protected]>
Signed-off-by: Amit Daniel Kachhap <[email protected]>
---
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
===
Hi,
Does this require changes to the makedumpfile or crash utilities ?
I did the corresponding change in crash tool. The link is mentioned in
first patch of the series.
Thanks,
Amit Daniel
Hi,
What are the consequences if this is present in the kernel yet the crash
utility is not updated ? Does crash still work ?
Thank You,
John
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