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qemu-e2k/hw/ppc
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Laurent Vivier 1481fe5fcf spapr: don't initialize PATB entry if max-cpu-compat < power9 
if KVM is enabled and KVM capabilities MMU radix is available,
the partition table entry (patb_entry) for the radix mode is
initialized by default in ppc_spapr_reset().

It's a problem if we want to migrate the guest to a POWER8 host
while the kernel is not started to set the value to the one
expected for a POWER8 CPU.

The "-machine max-cpu-compat=power8" should allow to migrate
a POWER9 KVM host to a POWER8 KVM host, but because patb_entry
is set, the destination QEMU tries to enable radix mode on the
POWER8 host. This fails and cancels the migration:

    Process table config unsupported by the host
    error while loading state for instance 0x0 of device 'spapr'
    load of migration failed: Invalid argument

This patch doesn't set the PATB entry if the user provides
a CPU compatibility mode that doesn't support radix mode.

Signed-off-by: Laurent Vivier <lvivier@redhat.com>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
 		2017-12-15 09:50:29 +11:00
..
Makefile.objs ppc4xx_i2c: Move to hw/i2c 2017-09-08 09:30:55 +10:00
e500-ccsr.h ppc: do not use ../ in include files 2013-03-01 13:57:33 +01:00
e500.c e500: name openpic and pci host bridge 2017-12-15 09:49:23 +11:00
e500.h target-ppc: Eliminate redundant and incorrect function booke206_page_size_to_tlb 2016-07-01 09:57:01 +10:00
e500plat.c ppc: mpc8544ds/e500plat: use generic cpu_model parsing 2017-10-17 10:34:00 +11:00
fdt.c Move target-* CPU file into a target/ folder 2016-12-20 21:52:12 +01:00
mac.h macio: use object link between MACIO_IDE and MAC_DBDMA object 2017-09-27 13:05:41 +10:00
mac_newworld.c ppc: mac_newworld: use generic cpu_model parsing 2017-10-17 10:34:00 +11:00
mac_oldworld.c ppc: mac_oldworld: use generic cpu_model parsing 2017-10-17 10:34:00 +11:00
mpc8544_guts.c shutdown: Add source information to SHUTDOWN and RESET 2017-05-23 13:28:17 +02:00
mpc8544ds.c ppc: mpc8544ds/e500plat: use generic cpu_model parsing 2017-10-17 10:34:00 +11:00
pnv.c ppc: pnv: consolidate type definitions and batch register them 2017-10-17 10:34:01 +11:00
pnv_bmc.c ppc/pnv: generate an OEM SEL event on shutdown 2017-04-26 12:41:56 +10:00
pnv_core.c ppc/xics: assign of the CPU 'intc' pointer under the core 2017-12-15 09:49:24 +11:00
pnv_lpc.c ppc/pnv: enable only one LPC bus 2017-04-26 12:41:55 +10:00
pnv_occ.c ppc/pnv: Add OCC model stub with interrupt support 2017-04-26 12:00:42 +10:00
pnv_psi.c xics: introduce macros for ICP/ICS link properties 2017-06-09 12:12:34 +10:00
pnv_xscom.c kvm: move cpu synchronization code 2017-01-19 22:07:46 +01:00
ppc.c ppc: spapr: replace ppc_cpu_parse_features() with cpu_parse_cpu_model() 2017-10-17 10:34:00 +11:00
ppc4xx_devs.c ppc: replace cpu_model with cpu_type on ref405ep,taihu boards 2017-10-17 10:34:00 +11:00
ppc4xx_pci.c pci: Add INTERFACE_CONVENTIONAL_PCI_DEVICE to Conventional PCI devices 2017-10-15 05:54:43 +03:00
ppc405.h ppc4xx: Export ECB and PLB emulation 2017-09-08 09:30:55 +10:00
ppc405_boards.c hw: Use new memory_region_init_{ram, rom, rom_device}() functions 2017-07-14 17:59:42 +01:00
ppc405_uc.c ppc: replace cpu_model with cpu_type on ref405ep,taihu boards 2017-10-17 10:34:00 +11:00
ppc440_bamboo.c ppc: bamboo: use generic cpu_model parsing 2017-10-17 10:34:00 +11:00
ppc_booke.c ppc_booke: drop useless assignment 2017-05-07 09:57:51 +03:00
ppce500_spin.c hw/ppc: QOM'ify ppce500_spin.c 2017-01-31 10:10:13 +11:00
prep.c ppc: 40p/prep: replace cpu_model with cpu_type 2017-10-17 10:34:00 +11:00
prep_systemio.c prep: add PReP System I/O 2017-01-31 10:10:13 +11:00
rs6000_mc.c prep: add IBM RS/6000 7020 (40p) memory controller 2017-01-31 10:10:13 +11:00
spapr.c spapr: don't initialize PATB entry if max-cpu-compat < power9 2017-12-15 09:50:29 +11:00
spapr_cpu_core.c ppc/xics: assign of the CPU 'intc' pointer under the core 2017-12-15 09:49:24 +11:00
spapr_drc.c spapr: reset DRCs after devices 2017-11-20 10:10:56 +11:00
spapr_events.c spapr_events: drop bogus cell from "interrupt-ranges" property 2017-12-15 09:49:24 +11:00
spapr_hcall.c target/ppc: correct htab shift for hash on radix 2017-11-14 10:28:32 +11:00
spapr_iommu.c migration: pre_save return int 2017-09-27 11:35:59 +01:00
spapr_ovec.c spapr: replace debug printf with trace points 2017-02-22 11:28:28 +11:00
spapr_pci.c spapr: fix LSI interrupt specifiers in the device tree 2017-12-15 09:49:24 +11:00
spapr_pci_vfio.c Use #include "..." for our own headers, <...> for others 2016-07-12 16:19:16 +02:00
spapr_rng.c spapr_rng: Convert to DEFINE_PROP_LINK 2017-07-14 12:04:43 +02:00
spapr_rtas.c spapr/rtas: do not reset the MSR in stop-self command 2017-12-15 09:49:24 +11:00
spapr_rtas_ddw.c spapr_pci/spapr_pci_vfio: Support Dynamic DMA Windows (DDW) 2016-07-05 14:31:08 +10:00
spapr_rtc.c hw/ppc/spapr_rtc: Mark the RTC device with user_creatable = false 2017-08-22 21:26:46 +10:00
spapr_vio.c spapr: fix LSI interrupt specifiers in the device tree 2017-12-15 09:49:24 +11:00
trace-events spapr: move the IRQ allocation routines under the machine 2017-12-15 09:49:24 +11:00
virtex_ml507.c ppc: virtex-ml507: replace cpu_model with cpu_type 2017-10-17 10:34:00 +11:00