docs/system/arm: Add placeholder doc for xlnx-zcu102 board

Add a placeholder doc for the xlnx-zcu102 board.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Cédric Le Goater <clg@redhat.com>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Message-id: 20241018141332.942844-6-peter.maydell@linaro.org

MAINTAINERS

@@ -1018,6 +1018,7 @@ F: include/hw/ssi/xilinx_spips.h
 F: hw/display/dpcd.c
 F: include/hw/display/dpcd.h
 F: docs/system/arm/xlnx-versal-virt.rst
+F: docs/system/arm/xlnx-zcu102.rst
 
 Xilinx Versal OSPI
 M: Francisco Iglesias <francisco.iglesias@amd.com>

docs/system/arm/xlnx-zcu102.rst

@@ -0,0 +1,19 @@
+Xilinx ZynqMP ZCU102 (``xlnx-zcu102``)
+======================================
+
+The ``xlnx-zcu102`` board models the Xilinx ZynqMP ZCU102 board.
+This board has 4 Cortex-A53 CPUs and 2 Cortex-R5F CPUs.
+
+Machine-specific options
+""""""""""""""""""""""""
+
+The following machine-specific options are supported:
+
+secure
+  Set ``on``/``off`` to enable/disable emulating a guest CPU which implements the
+  Arm Security Extensions (TrustZone). The default is ``off``.
+
+virtualization
+  Set ``on``/``off`` to enable/disable emulating a guest CPU which implements the
+  Arm Virtualization Extensions. The default is ``off``.
+

docs/system/target-arm.rst

@@ -107,6 +107,7 @@ undocumented; you can get a complete list by running
    arm/xenpvh
    arm/xlnx-versal-virt
    arm/xlnx-zynq
+   arm/xlnx-zcu102
 
 Emulated CPU architecture support
 =================================