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Greg Kurz 930ef3b5c2 spapr: Fix reset of transient DR connectors 
Documentation of object_property_iter_init() clearly stipulates that
"it is forbidden to modify the property list while iterating". But this
is exactly what we do when resetting transient DR connectors during CAS.
The call to spapr_drc_reset() can finalize the hot-unplug sequence of a
PHB or a PCI bridge, both of which will then in turn destroy their PCI
DRCs. This could potentially invalidate the iterator. It is pure luck
that this haven't caused any issues so far.

Change spapr_drc_reset() to return true if it caused a device to be
removed. Restart from scratch in this case. This can potentially
increase the overall DRC reset time, especially with a high maxmem
which generates a lot of LMB DRCs. But this kind of setup is rare,
and so is the use case of rebooting a guest while doing hot-unplug.

Signed-off-by: Greg Kurz <groug@kaod.org>
Message-Id: <20201218103400.689660-3-groug@kaod.org>
Reviewed-by: Daniel Henrique Barboza <danielhb413@gmail.com>
Tested-by: Daniel Henrique Barboza <danielhb413@gmail.com>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2021-01-06 11:09:59 +11:00
..
e500-ccsr.h Use OBJECT_DECLARE_SIMPLE_TYPE when possible 2020-09-18 14:12:32 -04:00
e500.c vl: make qemu_get_machine_opts static 2020-12-15 12:51:55 -05:00
e500.h Use OBJECT_DECLARE_TYPE when possible 2020-09-18 14:12:32 -04:00
e500plat.c ppc/e500: use memdev for RAM 2020-02-19 16:50:00 +00:00
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 ppc: Convert PPC UIC to a QOM device 2021-01-06 11:09:59 +11:00
mac.h mac_newworld: Allow loading binary ROM image 2020-10-19 08:11:21 +01:00
mac_newworld.c vl: extract softmmu/datadir.c 2020-12-10 12:15:18 -05:00
mac_oldworld.c vl: extract softmmu/datadir.c 2020-12-10 12:15:18 -05:00
meson.build ppc: introducing spapr_numa.c NUMA code helper 2020-09-08 10:08:43 +10:00
mpc8544_guts.c Use OBJECT_DECLARE_SIMPLE_TYPE when possible 2020-09-18 14:12:32 -04:00
mpc8544ds.c ppc/e500: use memdev for RAM 2020-02-19 16:50:00 +00:00
pnv.c vl: extract softmmu/datadir.c 2020-12-10 12:15:18 -05:00
pnv_bmc.c ppc/pnv: Add a HIOMAP erase command 2020-09-08 10:08:42 +10:00
pnv_core.c non-virt: Fix Lesser GPL version number 2020-11-15 16:38:24 +01:00
pnv_homer.c ppc/pnv: change the PowerNV machine devices to be non user creatable 2020-02-02 14:07:57 +11:00
pnv_lpc.c non-virt: Fix Lesser GPL version number 2020-11-15 16:38:24 +01:00
pnv_occ.c ppc/pnv: change the PowerNV machine devices to be non user creatable 2020-02-02 14:07:57 +11:00
pnv_pnor.c qdev: Move softmmu properties to qdev-properties-system.h 2020-12-18 15:20:17 -05:00
pnv_psi.c non-virt: Fix Lesser GPL version number 2020-11-15 16:38:24 +01:00
pnv_xscom.c non-virt: Fix Lesser GPL version number 2020-11-15 16:38:24 +01:00
ppc.c hw/ppc: Do not re-read the clock on pre_save if doing savevm 2020-12-14 15:54:12 +11:00
ppc4xx_devs.c ppc: Convert PPC UIC to a QOM device 2021-01-06 11:09:59 +11:00
ppc4xx_pci.c Pull request trivial patches 20200919 2020-09-22 15:42:23 +01:00
ppc405.h ppc4xx: Export ECB and PLB emulation 2017-09-08 09:30:55 +10:00
ppc405_boards.c vl: extract softmmu/datadir.c 2020-12-10 12:15:18 -05:00
ppc405_uc.c Include hw/boards.h a bit 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
ppc440_bamboo.c hw/ppc/ppc440_bamboo: Drop use of ppcuic_init() 2021-01-06 11:09:59 +11:00
ppc440_pcix.c Use OBJECT_DECLARE_SIMPLE_TYPE when possible 2020-09-18 14:12:32 -04:00
ppc440_uc.c Use OBJECT_DECLARE_SIMPLE_TYPE when possible 2020-09-18 14:12:32 -04:00
ppc_booke.c sysemu: Split sysemu/runstate.h off sysemu/sysemu.h 2019-08-16 13:37:36 +02:00
ppce500_spin.c powerpc tcg: Fix Lesser GPL version number 2020-11-15 16:38:50 +01:00
prep.c ppc: do not use ram_size global 2020-12-10 12:15:09 -05:00
prep_systemio.c Use OBJECT_DECLARE_SIMPLE_TYPE when possible 2020-09-18 14:12:32 -04:00
rs6000_mc.c Use OBJECT_DECLARE_SIMPLE_TYPE when possible 2020-09-18 14:12:32 -04:00
sam460ex.c vl: extract softmmu/datadir.c 2020-12-10 12:15:18 -05:00
spapr.c spapr: Allow memory unplug to always succeed 2021-01-06 11:09:59 +11:00
spapr_caps.c spapr: Add a return value to spapr_check_pagesize() 2020-10-09 10:15:06 +11:00
spapr_cpu_core.c spapr: Simplify spapr_cpu_core_realize() and spapr_cpu_core_unrealize() 2020-10-28 01:08:53 +11:00
spapr_drc.c spapr: Fix reset of transient DR connectors 2021-01-06 11:09:59 +11:00
spapr_events.c spapr: Allow memory unplug to always succeed 2021-01-06 11:09:59 +11:00
spapr_hcall.c spapr: Fix reset of transient DR connectors 2021-01-06 11:09:59 +11:00
spapr_iommu.c memory: Add IOMMUTLBEvent 2020-12-08 13:48:57 -05:00
spapr_irq.c spapr/xics: Drop unused argument to xics_kvm_has_broken_disconnect() 2020-12-14 15:50:55 +11:00
spapr_numa.c spapr_numa: consider user input when defining associativity 2020-10-09 15:06:11 +11:00
spapr_nvdimm.c ppc/spapr: cleanup -machine pseries,nvdimm=X handling 2020-12-15 12:51:53 -05:00
spapr_ovec.c spapr: Rename DT functions to newer naming convention 2020-03-17 17:00:19 +11:00
spapr_pci.c spapr: Don't use qdev_get_machine() in spapr_msi_write() 2020-12-14 15:54:12 +11:00
spapr_pci_nvlink2.c spapr_numa: move NVLink2 associativity handling to spapr_numa.c 2020-09-08 10:08:43 +10:00
spapr_pci_vfio.c Include qemu-common.h exactly where needed 2019-06-12 13:20:20 +02:00
spapr_rng.c Use OBJECT_DECLARE_SIMPLE_TYPE when possible 2020-09-18 14:12:32 -04:00
spapr_rtas.c pseries: fix kvmppc_set_fwnmi() 2020-07-27 11:09:25 +10:00
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_rtc.c qom: Drop parameter @errp of object_property_add() & friends 2020-05-15 07:07:58 +02:00
spapr_tpm_proxy.c qdev: Unrealize must not fail 2020-05-15 07:08:14 +02:00
spapr_vio.c ppc: do not use ram_size global 2020-12-10 12:15:09 -05:00
trace-events hw/ppc/spapr_tpm_proxy: Fix hexadecimal format string specifier 2020-12-14 15:54:12 +11:00
trace.h trace: switch position of headers to what Meson requires 2020-08-21 06:18:24 -04:00
virtex_ml507.c hw/ppc/virtex_ml507: Drop use of ppcuic_init() 2021-01-06 11:09:59 +11:00