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[v2,0/4] hw/arm: xlnx-zcu102: Disable unsupported FDT firmware nodes

Message ID 20200423121114.4274-1-edgar.iglesias@gmail.com
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Series hw/arm: xlnx-zcu102: Disable unsupported FDT firmware nodes | expand

Message

Edgar E. Iglesias April 23, 2020, 12:11 p.m. UTC 
From: "Edgar E. Iglesias" <edgar.iglesias@xilinx.com>

When users try direct Linux runs on the ZynqMP models without enabling
EL3 (and using appropriate FW) they run into trouble because the
upstream kernel device-tree has EL3 based firmware nodes by default.
PSCI firmware nodes work because we emulate the firmware in QEMU.

This series avoids that problem by disabling firmware nodes that the
machine cannot support due to lack of EL3 or EL2 support.

This means we can now (without manually editing DTBs) run the following
in a current Linux tree:

qemu-system-aarch64 -M xlnx-zcu102 -m 2G -dtb arch/arm64/boot/dts/xilinx/zynqmp-zcu102-rev1.0.dtb -serial mon:stdio -kernel arch/arm64/boot/Image -initrd zu-rootfs.cpio.gz -append rdinit=/bin/sh

Cheers,
Edgar

ChangeLog:

v1 -> v2:
* Constify compat in qemu_fdt_node_path().

Edgar E. Iglesias (4):
  device_tree: Allow name wildcards in qemu_fdt_node_path()
  device_tree: Constify compat in qemu_fdt_node_path()
  hw/arm: xlnx-zcu102: Move arm_boot_info into XlnxZCU102
  hw/arm: xlnx-zcu102: Disable unsupported FDT firmware nodes

 device_tree.c                |  4 ++--
 hw/arm/xlnx-zcu102.c         | 39 ++++++++++++++++++++++++++++++++----
 include/sysemu/device_tree.h |  5 ++++-
 3 files changed, 41 insertions(+), 7 deletions(-)