xemu/include
Greg Kurz 040bdafce1 spapr: Adjust firmware path of PCI devices
It is currently not possible to perform a strict boot from USB storage:

$ qemu-system-ppc64 -accel kvm -nodefaults -nographic -serial stdio \
	-boot strict=on \
	-device qemu-xhci \
	-device usb-storage,drive=disk,bootindex=0 \
	-blockdev driver=file,node-name=disk,filename=fedora-ppc64le.qcow2

SLOF **********************************************************************
QEMU Starting
 Build Date = Jul 17 2020 11:15:24
 FW Version = git-e18ddad8516ff2cf
 Press "s" to enter Open Firmware.

Populating /vdevice methods
Populating /vdevice/vty@71000000
Populating /vdevice/nvram@71000001
Populating /pci@800000020000000
                     00 0000 (D) : 1b36 000d    serial bus [ usb-xhci ]
No NVRAM common partition, re-initializing...
Scanning USB
  XHCI: Initializing
    USB Storage
       SCSI: Looking for devices
          101000000000000 DISK     : "QEMU     QEMU HARDDISK    2.5+"
Using default console: /vdevice/vty@71000000

  Welcome to Open Firmware

  Copyright (c) 2004, 2017 IBM Corporation All rights reserved.
  This program and the accompanying materials are made available
  under the terms of the BSD License available at
  http://www.opensource.org/licenses/bsd-license.php

Trying to load:  from: /pci@800000020000000/usb@0/storage@1/disk@101000000000000 ...
E3405: No such device

E3407: Load failed

  Type 'boot' and press return to continue booting the system.
  Type 'reset-all' and press return to reboot the system.

Ready!
0 >

The device tree handed over by QEMU to SLOF indeed contains:

qemu,boot-list =
	"/pci@800000020000000/usb@0/storage@1/disk@101000000000000 HALT";

but the device node is named usb-xhci@0, not usb@0.

This happens because the firmware names of PCI devices returned
by get_boot_devices_list() come from pcibus_get_fw_dev_path(),
while the sPAPR PHB code uses a different naming scheme for
device nodes. This inconsistency has always been there but it was
hidden for a long time because SLOF used to rename USB device
nodes, until this commit, merged in QEMU 4.2.0 :

commit 85164ad4ed
Author: Alexey Kardashevskiy <aik@ozlabs.ru>
Date:   Wed Sep 11 16:24:32 2019 +1000

    pseries: Update SLOF firmware image

    This fixes USB host bus adapter name in the device tree to match QEMU's
    one.

    Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru>
    Signed-off-by: David Gibson <david@gibson.dropbear.id.au>

Fortunately, sPAPR implements the firmware path provider interface.
This provides a way to override the default firmware paths.

Just factor out the sPAPR PHB naming logic from spapr_dt_pci_device()
to a helper, and use it in the sPAPR firmware path provider hook.

Fixes: 85164ad4ed ("pseries: Update SLOF firmware image")
Signed-off-by: Greg Kurz <groug@kaod.org>
Message-Id: <20210122170157.246374-1-groug@kaod.org>
Reviewed-by: Daniel Henrique Barboza <danielhb413@gmail.com>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2021-02-10 10:43:50 +11:00
..
authz Prefer 'on' | 'off' over 'yes' | 'no' for bool options 2021-01-29 17:07:53 +00:00
block Emulated NVMe device updates 2021-02-09 13:24:37 +00:00
chardev
crypto
disas
exec * Fuzzing improvements (Qiuhao, Alexander) 2021-02-09 10:04:51 +00:00
fpu
hw spapr: Adjust firmware path of PCI devices 2021-02-10 10:43:50 +11:00
io
libdecnumber
migration migration: introduce a delete_snapshot wrapper 2021-02-08 11:19:51 +00:00
monitor
net net: checksum: Introduce fine control over checksum type 2021-01-25 17:04:56 +08:00
qapi qapi: Introduce QAPI_LIST_APPEND 2021-01-28 08:08:45 +01:00
qemu * Fuzzing improvements (Qiuhao, Alexander) 2021-02-09 10:04:51 +00:00
qom qom: Allow optional sugar props 2021-02-08 16:57:37 +11:00
scsi scsi/utils: Add INVALID_PARAM_VALUE sense code definition 2021-01-22 14:51:35 +01:00
standard-headers Update linux headers to 5.11-rc2 2021-01-21 11:19:45 +01:00
sysemu sev: Add Error ** to sev_kvm_init() 2021-02-08 16:57:38 +11:00
tcg tcg: Restart code generation when we run out of temps 2021-01-24 08:03:27 -10:00
ui display/ui: add a callback to indicate GL state is flushed 2021-02-04 15:58:54 +01:00
user
elf.h
glib-compat.h
qemu-common.h
qemu-io.h
trace-tcg.h