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3725ef1a94
qemu/hw/ppc
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Greg Kurz 3725ef1a94 spapr: Don't migrate the hpt_maxpagesize cap to older machine types 
Commit 0b8c89be7f7b added the hpt_maxpagesize capability to the migration
stream. This is okay for new machine types but it breaks backward migration
to older QEMUs, which don't expect the extra subsection.

Add a compatibility boolean flag to the sPAPR machine class and use it to
skip migration of the capability for machine types 4.0 and older. This
fixes migration to an older QEMU. Note that the destination will emit a
warning:

qemu-system-ppc64: warning: cap-hpt-max-page-size lower level (16) in incoming stream than on destination (24)

This is expected and harmless though. It is okay to migrate from a lower
HPT maximum page size (64k) to a greater one (16M).

Fixes: 0b8c89be7f7b "spapr: Add forgotten capability to migration stream"
Based-on: <20190522074016.10521-3-clg@kaod.org>
Signed-off-by: Greg Kurz <groug@kaod.org>
Message-Id: <155853262675.1158324.17301777846476373459.stgit@bahia.lan>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2019-05-29 11:39:47 +10:00
..
e500-ccsr.h ppc: do not use ../ in include files 2013-03-01 13:57:33 +01:00
e500.c PPC: E500: Add FSL I2C controller and integrate RTC with it 2019-03-12 14:33:04 +11:00
e500.h platform-bus-device: use device plug callback instead of machine_done notifier 2018-05-10 18:10:56 +01:00
e500plat.c hw/ppc: Use the IEC binary prefix definitions 2018-07-02 15:41:16 +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 mac_newworld: use node name instead of alias name for hd device in FWPathProvider 2019-03-12 14:33:04 +11:00
mac_oldworld.c mac_oldworld: use node name instead of alias name for hd device in FWPathProvider 2019-03-12 14:33:04 +11:00
mac.h macio: move MACIOIDEState type declarations to macio.h 2018-08-30 10:42:18 +10:00
Makefile.objs hw/ppc: Implement fw_cfg_arch_key_name() 2019-05-23 14:10:31 +02:00
mpc8544_guts.c shutdown: Add source information to SHUTDOWN and RESET 2017-05-23 13:28:17 +02:00
mpc8544ds.c ppc: e500: switch E500 based machines to full machine definition 2018-04-27 18:05:23 +10:00
pnv_bmc.c Include qapi/error.h exactly where needed 2018-02-09 13:50:17 +01:00
pnv_core.c ppc/pnv: POWER9 XSCOM quad support 2019-03-12 14:33:04 +11:00
pnv_lpc.c ppc/pnv: add SerIRQ routing registers 2019-03-12 14:33:04 +11:00
pnv_occ.c ppc/pnv: add a OCC model for POWER9 2019-03-12 14:33:04 +11:00
pnv_psi.c ppc/pnv: Fix variable size in pnv_psi_power9_irq_set() 2019-03-19 15:20:14 +11:00
pnv_xscom.c ppc/pnv: add more dummy XSCOM addresses 2019-03-12 14:33:05 +11:00
pnv.c hw/ppc/pnv: Use object_initialize_child for correct reference counting 2019-05-24 15:29:02 -03:00
ppc4xx_devs.c ppc4xx: Pass array index to function instead of pointer into the array 2019-02-04 18:44:17 +11:00
ppc4xx_pci.c ppc4xx_pci: convert SysBus init method to a realize method 2018-11-08 12:04:40 +11:00
ppc405_boards.c pflash: Clean up after commit 368a354f02, part 2 2019-03-11 22:53:44 +01:00
ppc405_uc.c hw/ppc: Move ppc40x_*reset() functions from ppc405_uc.c to ppc.c 2019-02-04 18:44:18 +11:00
ppc405.h ppc4xx: Export ECB and PLB emulation 2017-09-08 09:30:55 +10:00
ppc440_bamboo.c elf: Add optional function ptr to load_elf() to parse ELF notes 2019-02-05 16:50:16 +01:00
ppc440_pcix.c ppc440_pcix: convert SysBus init method to a realize method 2018-11-08 12:04:40 +11:00
ppc440_uc.c ppc440: Avoid reporting error when reading non-existent RAM slot 2019-02-04 18:44:17 +11:00
ppc440.h ppc440_uc: Basic emulation of PPC440 DMA controller 2018-07-03 09:56:52 +10:00
ppc_booke.c hw/ppc: Don't include m48t59.h if it is not necessary 2019-02-04 18:44:20 +11:00
ppc.c target/ppc: Consolidate 64-bit server processor detection in a helper 2019-03-29 10:22:22 +11:00
ppce500_spin.c hw/ppc: Use the IEC binary prefix definitions 2018-07-02 15:41:16 +02:00
prep_systemio.c prep: add PReP System I/O 2017-01-31 10:10:13 +11:00
prep.c hw/ppc/40p: use 1900 as a base year 2019-05-29 11:39:44 +10:00
rs6000_mc.c hw/ppc: Use the IEC binary prefix definitions 2018-07-02 15:41:16 +02:00
sam460ex.c pflash: Clean up after commit 368a354f02, part 2 2019-03-11 22:53:44 +01:00
spapr_caps.c spapr: Don't migrate the hpt_maxpagesize cap to older machine types 2019-05-29 11:39:47 +10:00
spapr_cpu_core.c target/ppc: Set PSSCR_EC on cpu halt to prevent spurious wakeup 2019-05-29 11:39:45 +10:00
spapr_drc.c spapr: Use CamelCase properly 2019-03-12 14:33:05 +11:00
spapr_events.c spapr: Use CamelCase properly 2019-03-12 14:33:05 +11:00
spapr_hcall.c spapr: Print out extra hints when CAS negotiation of interrupt mode fails 2019-05-29 11:39:45 +10:00
spapr_iommu.c spapr: Use CamelCase properly 2019-03-12 14:33:05 +11:00
spapr_irq.c spapr/irq: add KVM support to the 'dual' machine 2019-05-29 11:39:46 +10:00
spapr_ovec.c spapr: Use CamelCase properly 2019-03-12 14:33:05 +11:00
spapr_pci_nvlink2.c spapr: Support NVIDIA V100 GPU with NVLink2 2019-04-26 10:41:23 +10:00
spapr_pci_vfio.c spapr: Use CamelCase properly 2019-03-12 14:33:05 +11:00
spapr_pci.c spapr: Drop duplicate PCI swizzle code 2019-04-26 11:37:57 +10:00
spapr_rng.c spapr: Use CamelCase properly 2019-03-12 14:33:05 +11:00
spapr_rtas_ddw.c spapr: Use CamelCase properly 2019-03-12 14:33:05 +11:00
spapr_rtas.c target/ppc: Set PSSCR_EC on cpu halt to prevent spurious wakeup 2019-05-29 11:39:45 +10:00
spapr_rtc.c spapr: Use CamelCase properly 2019-03-12 14:33:05 +11:00
spapr_vio.c spapr: Use CamelCase properly 2019-03-12 14:33:05 +11:00
spapr.c spapr: Don't migrate the hpt_maxpagesize cap to older machine types 2019-05-29 11:39:47 +10:00
trace-events trace-events: Fix attribution of trace points to source 2019-03-22 16:18:07 +00:00
virtex_ml507.c pflash: Clean up after commit 368a354f02, part 2 2019-03-11 22:53:44 +01:00