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
===
--
2.7.4
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 ?
--
Thank You,
John
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
>
>
>