Messages in this thread | | | Subject | Re: [PATCH v2 2/2] Documentation/vmcoreinfo: Add documentation for 'KERNELPACMASK' | From | Amit Kachhap <> | Date | Wed, 6 May 2020 17:37:10 +0530 |
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Hi,
On 5/4/20 11:04 PM, Will Deacon wrote: > On Mon, Apr 27, 2020 at 11:55:02AM +0530, Amit Daniel Kachhap wrote: >> 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..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. > > This is a bit cryptic. How about: > > The mask to extract the Pointer Authentication Code from a kernel virtual > address.
Ok sure. I will update like this in the v3 version.
Cheers, Amit Daniel > > Will >
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