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[v1,0/3] hw/arm: xlnx-zcu102: Disable unsupported FDT firmware nodes

Message ID 20200419162727.19148-1-edgar.iglesias@gmail.com (mailing list archive)
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Series hw/arm: xlnx-zcu102: Disable unsupported FDT firmware nodes | expand

Message

Edgar E. Iglesias April 19, 2020, 4:27 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 non-PSCI firmware nodes by default.
PSCI firmware nodes work because we emulate the firmware in QEMU.

This series avoids that problem by disabling zynqmp-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

Edgar E. Iglesias (3):
  device_tree: Allow name wildcards 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                |  2 +-
 hw/arm/xlnx-zcu102.c         | 40 ++++++++++++++++++++++++++++++++----
 include/sysemu/device_tree.h |  3 +++
 3 files changed, 40 insertions(+), 5 deletions(-)