Add documentation for TCR_EL1.T1SZ variable being added to
vmcoreinfo.

It indicates the size offset of the memory region addressed by TTBR1_EL1
and hence can be used for determining the vabits_actual value.

Cc: James Morse <james.morse@arm.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Will Deacon <will@kernel.org>
Cc: Steve Capper <redacted>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Ard Biesheuvel <redacted>
Cc: Dave Anderson <redacted>
Cc: Kazuhito Hagio <redacted>
Cc: linux-arm-kernel@lists.infradead.org
Cc: linux-kernel@vger.kernel.org
Cc: kexec@lists.infradead.org
Signed-off-by: Bhupesh Sharma <redacted>
---
 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 447b64314f56..f9349f9d3345 100644
--- a/Documentation/admin-guide/kdump/vmcoreinfo.rst
+++ b/Documentation/admin-guide/kdump/vmcoreinfo.rst

@@ -398,6 +398,12 @@ KERNELOFFSET
 The kernel randomization offset. Used to compute the page offset. If
 KASLR is disabled, this value is zero.
 
+TCR_EL1.T1SZ
+------------
+
+Indicates the size offset of the memory region addressed by TTBR1_EL1
+and hence can be used for determining the vabits_actual value.
+
 arm
 ===
 

-- 
2.7.4