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From: "Edgar E. Iglesias" <edgar.iglesias@gmail.com>
To: qemu-devel@nongnu.org
Cc: figlesia@xilinx.com, peter.maydell@linaro.org,
	sstabellini@kernel.org, edgar.iglesias@xilinx.com,
	sai.pavan.boddu@xilinx.com, frasse.iglesias@gmail.com,
	alistair@alistair23.me, richard.henderson@linaro.org,
	frederic.konrad@adacore.com, qemu-arm@nongnu.org,
	philmd@redhat.com, luc.michel@greensocs.com,
	david@gibson.dropbear.id.au
Subject: [PATCH v1 0/3] hw/arm: xlnx-zcu102: Disable unsupported FDT firmware nodes
Date: Sun, 19 Apr 2020 18:27:24 +0200	[thread overview]
Message-ID: <20200419162727.19148-1-edgar.iglesias@gmail.com> (raw)

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(-)

-- 
2.20.1



             reply	other threads:[~2020-04-19 16:28 UTC|newest]

Thread overview: 10+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-04-19 16:27 Edgar E. Iglesias [this message]
2020-04-19 16:27 ` [PATCH v1 1/3] device_tree: Allow name wildcards in qemu_fdt_node_path() Edgar E. Iglesias
2020-04-20 19:44   ` Alistair Francis
2020-04-19 16:27 ` [PATCH v1 2/3] hw/arm: xlnx-zcu102: Move arm_boot_info into XlnxZCU102 Edgar E. Iglesias
2020-04-20  6:47   ` Philippe Mathieu-Daudé
2020-04-19 16:27 ` [PATCH v1 3/3] hw/arm: xlnx-zcu102: Disable unsupported FDT firmware nodes Edgar E. Iglesias
2020-04-20 19:46   ` Alistair Francis
2020-04-23 11:21   ` Peter Maydell
2020-04-23 11:44     ` Edgar E. Iglesias
2020-04-23 11:46       ` Peter Maydell

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