system/arm/sbsa.rst

1 Arm Server Base System Architecture Reference board (``sbsa-ref``)
4 The ``sbsa-ref`` board intends to look like real hardware (while the ``virt``
5 board is a generic board platform that doesn't match any real hardware).
9   - `Base System Architecture <https://developer.arm.com/documentation/den0094/>`__ (BSA)
10   - `Server Base System Architecture <https://developer.arm.com/documentation/den0029/>`__ (SBSA)
21 The ``sbsa-ref`` board supports:
23   - A configurable number of AArch64 CPUs
24   - GIC version 3
25   - System bus AHCI controller
26   - System bus XHCI controller
27   - CDROM and hard disc on AHCI bus
28   - E1000E ethernet card on PCIe bus
29   - Bochs display adapter on PCIe bus
30   - A generic SBSA watchdog device
36 ``sbsa-ref`` is a static system that reports a very minimal devicetree to the
37 firmware for non-discoverable information about system components. This
60    - CPUs
61    - memory
62    - platform version
63    - GIC addresses
64    - NUMA node id for CPUs and memory
65    - CPU topology information
71 what kind of ``sbsa-ref`` board it is running on. It is neither
75 The ``machine-version-major`` value is updated when changes breaking
76 fw compatibility are introduced. The ``machine-version-minor`` value
91   The USB controller is an XHCI device, not EHCI.