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c55bcb1f47
qemu/hw/ppc
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Greg Kurz c55bcb1f47 spapr: Clarify error and documentation for broken KVM XICS 
When starting an L2 KVM guest with `ic-mode=dual,kernel-irqchip=on`,
QEMU fails with:

KVM is too old to support ic-mode=dual,kernel-irqchip=on

This error message was introduced to detect older KVM versions that
didn't allow destruction and re-creation of the XICS KVM device that
we do at reboot. But it is actually the same issue that we get with
nested guests : when running under pseries, KVM currently provides
a genuine XICS device (not the XICS-on-XIVE device that we get
under powernv) which doesn't support destruction/re-creation.

This will eventually be fixed in KVM but in the meantime, update
the error message and documentation to mention the nested case.
While here, mention that in "No XIVE support in KVM" section that
this can also happen with "guest OSes supporting XIVE" since
we check this at init time before starting the guest.

Reported-by: Satheesh Rajendran <sathnaga@linux.vnet.ibm.com>
Buglink: https://bugs.launchpad.net/qemu/+bug/1890290
Signed-off-by: Greg Kurz <groug@kaod.org>
Message-Id: <159664243614.622889.18307368735989783528.stgit@bahia.lan>
Reviewed-by: Cédric Le Goater <clg@kaod.org>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2020-08-12 13:16:27 +10:00
..
e500-ccsr.h ppc: do not use ../ in include files 2013-03-01 13:57:33 +01:00
e500.c hw/i2c: Rename i2c_create_slave() as i2c_slave_create_simple() 2020-07-16 12:30:54 -05:00
e500.h platform-bus-device: use device plug callback instead of machine_done notifier 2018-05-10 18:10:56 +01:00
e500plat.c 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/pnv: Fix PCI_EXPRESS dependency 2020-02-21 09:15:03 +11:00
mac_newworld.c qom: Put name parameter before value / visitor parameter 2020-07-10 15:18:08 +02:00
mac_oldworld.c qom: Put name parameter before value / visitor parameter 2020-07-10 15:18:08 +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 spapr: Add NVDIMM device support 2020-02-21 09:15:04 +11:00
mpc8544_guts.c sysemu: Split sysemu/runstate.h off sysemu/sysemu.h 2019-08-16 13:37:36 +02:00
mpc8544ds.c ppc/e500: use memdev for RAM 2020-02-19 16:50:00 +00:00
pnv_bmc.c qdev: Convert bus-less devices to qdev_realize() with Coccinelle 2020-06-15 22:06:04 +02:00
pnv_core.c error: Eliminate error_propagate() with Coccinelle, part 1 2020-07-10 15:18:08 +02:00
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 hw/ppc/pnv: Fix typo in comment 2020-03-17 09:41:14 +11:00
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 ppc/pnv: improve error logging when a PNOR update fails 2020-02-02 14:07:57 +11:00
pnv_psi.c ppc/pnv: Make PSI device types not user creatable 2020-07-20 09:21:39 +10:00
pnv_xscom.c ppc/pnv: Introduce PnvChipClass::xscom_pcba() method 2019-12-17 10:59:11 +11:00
pnv.c error: Eliminate error_propagate() with Coccinelle, part 1 2020-07-10 15:18:08 +02:00
ppc4xx_devs.c bamboo, sam460ex: Tidy up error message for unsupported RAM size 2020-04-29 08:01:52 +02:00
ppc4xx_pci.c Include hw/hw.h exactly where needed 2019-08-16 13:31:52 +02:00
ppc405_boards.c ppc/ppc405_boards: Remove unnecessary NULL check 2020-03-24 11:56:37 +11:00
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 ppc/{ppc440_bamboo, sam460ex}: use memdev for RAM 2020-02-19 16:50:00 +00:00
ppc440_pcix.c Include hw/hw.h exactly where needed 2019-08-16 13:31:52 +02:00
ppc440_uc.c sysbus: Convert to sysbus_realize() etc. with Coccinelle 2020-06-15 22:05:28 +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 hw/ppc/prep: Remove the deprecated "prep" machine and the OpenHackware BIOS 2020-02-02 14:07:57 +11:00
ppce500_spin.c Clean up inclusion of sysemu/sysemu.h 2019-08-16 13:31:53 +02:00
prep_systemio.c qdev: set properties with device_class_set_props() 2020-01-24 20:59:15 +01:00
prep.c sysbus: Convert to sysbus_realize() etc. with Coccinelle 2020-06-15 22:05:28 +02:00
rs6000_mc.c error: Avoid unnecessary error_propagate() after error_setg() 2020-07-10 15:18:08 +02:00
sam460ex.c hw/i2c: Rename i2c_create_slave() as i2c_slave_create_simple() 2020-07-16 12:30:54 -05:00
spapr_caps.c spapr: Forbid nested KVM-HV in pre-power9 compat mode 2020-08-12 13:16:27 +10:00
spapr_cpu_core.c error: Eliminate error_propagate() manually 2020-07-10 15:18:08 +02:00
spapr_drc.c qom: Change object_get_canonical_path_component() not to malloc 2020-07-21 16:23:43 +02:00
spapr_events.c ppc/spapr: Don't kill the guest if a recovered FWNMI machine check delivery fails 2020-04-07 08:55:10 +10:00
spapr_hcall.c qom: Crash more nicely on object_property_get_link() failure 2020-07-10 15:18:08 +02:00
spapr_iommu.c qdev: Convert bus-less devices to qdev_realize() with Coccinelle 2020-06-15 22:06:04 +02:00
spapr_irq.c spapr: Clarify error and documentation for broken KVM XICS 2020-08-12 13:16:27 +10:00
spapr_nvdimm.c spapr_nvdimm: Tweak error messages 2020-05-07 11:10:50 +10:00
spapr_ovec.c spapr: Rename DT functions to newer naming convention 2020-03-17 17:00:19 +11:00
spapr_pci_nvlink2.c spapr: Add a new level of NUMA for GPUs 2020-07-20 09:21:39 +10:00
spapr_pci_vfio.c Include qemu-common.h exactly where needed 2019-06-12 13:20:20 +02:00
spapr_pci.c spapr: Add a new level of NUMA for GPUs 2020-07-20 09:21:39 +10:00
spapr_rng.c qom: Drop object_property_set_description() parameter @errp 2020-05-15 07:06:49 +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 pseries: fix kvmppc_set_fwnmi() 2020-07-27 11:09:25 +10:00
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 spapr: Fix typos in comments and macro indentation 2020-06-26 09:22:30 +10:00
spapr.c ppc/spapr: Fix 32 bit logical memory block size assumptions 2020-08-12 13:16:27 +10:00
trace-events qom: Change object_get_canonical_path_component() not to malloc 2020-07-21 16:23:43 +02:00
virtex_ml507.c sysbus: Convert to sysbus_realize() etc. with Coccinelle 2020-06-15 22:05:28 +02:00