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qemu/hw/ppc
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Alexey Kardashevskiy a49f62b9fd spapr: Add /chosen to FDT only at reset time to preserve kernel and initramdisk 
Since "spapr: Render full FDT on ibm,client-architecture-support" we build
the entire flatten device tree (FDT) twice - at the reset time and
when "ibm,client-architecture-support" (CAS) is called. The full FDT from
CAS is then applied on top of the SLOF internal device tree.

This is mostly ok, however there is a case when the QEMU is started with
-initrd and for some reason the guest decided to move/unpack the init RAM
disk image - the guest correctly notifies SLOF about the change but
at CAS it is overridden with the QEMU initial location addresses and
the guest may fail to boot if the original initrd memory was changed.

This fixes the problem by only adding the /chosen node at the reset time
to prevent the original QEMU's linux,initrd-start/linux,initrd-end to
override the updated addresses.

This only treats /chosen differently as we know there is a special case
already and it is unlikely anything else will need to change /chosen at CAS
we are better off not touching /chosen after we handed it over to SLOF.

Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru>
Message-Id: <20191024041308.5673-1-aik@ozlabs.ru>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: Laurent Vivier <lvivier@redhat.com>
2019-11-18 11:50:33 +01:00
..
e500-ccsr.h ppc: do not use ../ in include files 2013-03-01 13:57:33 +01:00
e500.c sysemu: Split sysemu/runstate.h off sysemu/sysemu.h 2019-08-16 13:37:36 +02:00
e500.h platform-bus-device: use device plug callback instead of machine_done notifier 2018-05-10 18:10:56 +01:00
e500plat.c Include hw/boards.h a bit less 2019-08-16 13:31:53 +02:00
fdt.c target/ppc: Split page size information into a separate allocation 2018-04-27 18:05:22 +10:00
fw_cfg.c hw/ppc: Implement fw_cfg_arch_key_name() 2019-05-23 14:10:31 +02:00
Kconfig spapr/xive: add KVM support 2019-05-29 11:39:45 +10:00
mac_newworld.c core: replace getpagesize() with qemu_real_host_page_size 2019-10-26 15:38:06 +02:00
mac_oldworld.c Include hw/qdev-properties.h less 2019-08-16 13:31:53 +02:00
mac.h ide: Include hw/ide/internal a bit less outside hw/ide/ 2019-08-16 13:31:52 +02:00
Makefile.objs hw/ppc/pnv_homer: add PowerNV homer device model 2019-10-04 10:25:23 +10:00
mpc8544_guts.c sysemu: Split sysemu/runstate.h off sysemu/sysemu.h 2019-08-16 13:37:36 +02:00
mpc8544ds.c Include hw/boards.h a bit less 2019-08-16 13:31:53 +02:00
pnv_bmc.c ppc/pnv: fix "bmc" node name in DT 2019-10-04 10:25:23 +10:00
pnv_core.c ppc: Add intc_destroy() handlers to SpaprInterruptController/PnvChip 2019-11-18 11:49:11 +01:00
pnv_homer.c hw/ppc/pnv_homer: add PowerNV homer device model 2019-10-04 10:25:23 +10:00
pnv_lpc.c Clean up inclusion of sysemu/sysemu.h 2019-08-16 13:31:53 +02:00
pnv_occ.c hw/ppc/pnv_occ: add sram device model for occ common area 2019-10-04 10:25:23 +10:00
pnv_psi.c ppc/pnv: Use address_space_stq_be() when triggering an interrupt from PSI 2019-10-24 09:36:55 +11:00
pnv_xscom.c hw/ppc/pnv_xscom: retrieve homer/occ base address from PBA BARs 2019-10-04 10:25:23 +10:00
pnv.c ppc: Add intc_destroy() handlers to SpaprInterruptController/PnvChip 2019-11-18 11:49:11 +01:00
ppc4xx_devs.c Include hw/hw.h exactly where needed 2019-08-16 13:31:52 +02:00
ppc4xx_pci.c Include hw/hw.h exactly where needed 2019-08-16 13:31:52 +02:00
ppc405_boards.c hw: Move M48T59 device from hw/timer/ to hw/rtc/ subdirectory 2019-10-24 20:20:45 +02:00
ppc405_uc.c Include hw/boards.h a bit less 2019-08-16 13:31:53 +02:00
ppc405.h ppc4xx: Export ECB and PLB emulation 2017-09-08 09:30:55 +10:00
ppc440_bamboo.c Include hw/hw.h exactly where needed 2019-08-16 13:31:52 +02:00
ppc440_pcix.c Include hw/hw.h exactly where needed 2019-08-16 13:31:52 +02:00
ppc440_uc.c Include hw/qdev-properties.h less 2019-08-16 13:31:53 +02:00
ppc440.h ppc440_uc: Basic emulation of PPC440 DMA controller 2018-07-03 09:56:52 +10:00
ppc_booke.c sysemu: Split sysemu/runstate.h off sysemu/sysemu.h 2019-08-16 13:37:36 +02:00
ppc.c migration: Do not re-read the clock on pre_save in case of paused guest 2019-08-21 17:17:11 +10:00
ppce500_spin.c Clean up inclusion of sysemu/sysemu.h 2019-08-16 13:31:53 +02:00
prep_systemio.c sysemu: Split sysemu/runstate.h off sysemu/sysemu.h 2019-08-16 13:37:36 +02:00
prep.c hw: Move M48T59 device from hw/timer/ to hw/rtc/ subdirectory 2019-10-24 20:20:45 +02:00
rs6000_mc.c ppc: rs6000_mc: drop usage of memory_region_allocate_system_memory() 2019-10-23 23:37:42 -03:00
sam460ex.c Include hw/qdev-properties.h less 2019-08-16 13:31:53 +02:00
spapr_caps.c ppc: fix memory leak in spapr_caps_add_properties 2019-08-21 17:17:11 +10:00
spapr_cpu_core.c ppc: Add intc_destroy() handlers to SpaprInterruptController/PnvChip 2019-11-18 11:49:11 +01:00
spapr_drc.c ppc: fix memory leak in spapr_dt_drc() 2019-08-21 17:17:11 +10:00
spapr_events.c spapr_events: Rewrite a fall through comment 2019-08-21 10:59:10 +02:00
spapr_hcall.c spapr: Use less cryptic representation of which irq backends are supported 2019-10-04 19:08:23 +10:00
spapr_iommu.c memory: allow memory_region_register_iommu_notifier() to fail 2019-10-04 18:49:18 +02:00
spapr_irq.c ppc: Add intc_destroy() handlers to SpaprInterruptController/PnvChip 2019-11-18 11:49:11 +01:00
spapr_ovec.c Include migration/vmstate.h less 2019-08-16 13:31:52 +02:00
spapr_pci_nvlink2.c spapr/pci: Convert types to QEMU coding style 2019-08-29 09:46:07 +10:00
spapr_pci_vfio.c Include qemu-common.h exactly where needed 2019-06-12 13:20:20 +02:00
spapr_pci.c core: replace getpagesize() with qemu_real_host_page_size 2019-10-26 15:38:06 +02:00
spapr_rng.c Clean up inclusion of sysemu/sysemu.h 2019-08-16 13:31:53 +02:00
spapr_rtas_ddw.c Include qemu/module.h where needed, drop it from qemu-common.h 2019-06-12 13:18:33 +02:00
spapr_rtas.c spapr: Stop providing RTAS blob 2019-10-04 10:25:23 +10:00
spapr_rtc.c Include migration/vmstate.h less 2019-08-16 13:31:52 +02:00
spapr_tpm_proxy.c spapr-tpm-proxy: Drop misleading check 2019-10-04 10:25:23 +10:00
spapr_vio.c spapr: Replace spapr_vio_qirq() helper with spapr_vio_irq_pulse() helper 2019-10-04 19:08:22 +10:00
spapr.c spapr: Add /chosen to FDT only at reset time to preserve kernel and initramdisk 2019-11-18 11:50:33 +01:00
trace-events spapr: Remove unhelpful tracepoints from spapr_irq_free_xics() 2019-10-04 19:08:22 +10:00
virtex_ml507.c Include hw/qdev-properties.h less 2019-08-16 13:31:53 +02:00