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xemu/hw/ppc
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Fabiano Rosas ab5add4c7b hw/ppc/spapr.c: Make sure the host supports the selected MMU mode 
Starting with Linux kernel v5.12 we dropped support[1] in KVM for
hosts that can't have their threads running in different MMU modes
(POWER9 < DD2.2). In these hosts, KVM will no longer report the
KVM_CAP_PPC_MMU_HASH_V3 capability[2] when the host is running Radix.

For guests that support both MMU modes, the negotiation during CAS
will make sure it selects the correct one.

For guests that only support Hash, such as P8 compat mode guests, the
following error is currently thrown:

  $ ~/qemu-system-ppc64 -machine pseries,accel=kvm,max-cpu-compat=power8 ...
  error: kvm run failed Invalid argument
  NIP 0000000000000100   LR 0000000000000000 CTR 0000000000000000 XER 0000000000000000 CPU#0
  MSR 8000000000001000 HID0 0000000000000000  HF 8000000000000000 iidx 3 didx 3
  TB 00000000 00000000 DECR 0
  GPR00 0000000000000000 0000000000000000 0000000000000000 000000007ff00000
  GPR04 0000000000000000 0000000000000000 0000000000000000 0000000000000000
  GPR08 0000000000000000 0000000000000000 0000000000000000 0000000000000000
  GPR12 0000000000000000 0000000000000000 0000000000000000 0000000000000000
  GPR16 0000000000000000 0000000000000000 0000000000000000 0000000000000000
  GPR20 0000000000000000 0000000000000000 0000000000000000 0000000000000000
  GPR24 0000000000000000 0000000000000000 0000000000000000 0000000000000000
  GPR28 0000000000000000 0000000000000000 0000000000000000 0000000000000000
  CR 00000000  [ -  -  -  -  -  -  -  -  ]             RES ffffffffffffffff
   SRR0 0000000000000000  SRR1 0000000000000000    PVR 00000000004e1201 VRSAVE 0000000000000000
  SPRG0 0000000000000000 SPRG1 0000000000000000  SPRG2 0000000000000000  SPRG3 0000000000000000
  SPRG4 0000000000000000 SPRG5 0000000000000000  SPRG6 0000000000000000  SPRG7 0000000000000000
  HSRR0 0000000000000000 HSRR1 0000000000000000
   CFAR 0000000000000000
   LPCR 000000000004f01f
   PTCR 0000000000000000   DAR 0000000000000000  DSISR 0000000000000000

This patch adds a verification during the writing of the platform
support vector so that we error out as soon as we determine this guest
only supports Hash and the host doesn't.

  ~/qemu-system-ppc64 -machine pseries,accel=kvm,max-cpu-compat=power8 ...
  qemu-system-ppc64: Guest requested unavailable MMU mode (hash).

1- https://git.kernel.org/torvalds/p/b1b1697ae0cc8
2- https://git.kernel.org/torvalds/p/a722076e94702

Signed-off-by: Fabiano Rosas <farosas@linux.ibm.com>
Message-Id: <20210505001130.3999968-3-farosas@linux.ibm.com>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
 		2021-05-19 10:30:28 +10:00
..
Kconfig hw/ppc: Add emulation of Genesi/bPlan Pegasos II 2021-05-04 11:41:25 +10:00
e500-ccsr.h Use OBJECT_DECLARE_SIMPLE_TYPE when possible 2020-09-18 14:12:32 -04:00
e500.c Do not include exec/address-spaces.h if it's not really necessary 2021-05-02 17:24:51 +02:00
e500.h Use OBJECT_DECLARE_TYPE when possible 2020-09-18 14:12:32 -04:00
e500plat.c hw/ppc/e500plat: Only try to add valid dynamic sysbus devices to platform bus 2021-04-06 11:49:14 +01:00
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
mac.h mac_newworld: Allow loading binary ROM image 2020-10-19 08:11:21 +01:00
mac_newworld.c ppc patch queue 2021-05-04 2021-05-05 20:29:14 +01:00
mac_oldworld.c Do not include exec/address-spaces.h if it's not really necessary 2021-05-02 17:24:51 +02:00
meson.build hw/ppc: Add emulation of Genesi/bPlan Pegasos II 2021-05-04 11:41:25 +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
pef.c spapr: PEF: prevent migration 2021-02-08 16:57:38 +11:00
pegasos2.c hw/ppc: Add emulation of Genesi/bPlan Pegasos II 2021-05-04 11:41:25 +10:00
pnv.c Do not include exec/address-spaces.h if it's not really necessary 2021-05-02 17:24:51 +02:00
pnv_bmc.c Various spelling fixes 2021-03-09 21:19:10 +01:00
pnv_core.c hw/ppc/pnv_core: Update hflags after setting msr 2021-05-04 11:41:24 +10:00
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 ppc/pnv: Introduce a LPC FW memory region attribute to map the PNOR 2021-02-10 10:43:50 +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 hw: Do not include qemu/log.h if it is not necessary 2021-05-02 17:24:50 +02:00
pnv_psi.c ppc patch queue 2021-05-04 2021-05-05 20:29:14 +01:00
pnv_xscom.c exec/memory: Use struct Object typedef 2021-03-09 21:53:57 +01:00
ppc.c Do not include cpu.h if it's not really necessary 2021-05-02 17:24:51 +02:00
ppc4xx_devs.c Do not include hw/boards.h if it's not really necessary 2021-05-02 17:24:51 +02:00
ppc4xx_pci.c Do not include exec/address-spaces.h if it's not really necessary 2021-05-02 17:24:51 +02:00
ppc405.h hw/ppc/ppc405_uc: Drop use of ppcuic_init() 2021-01-19 10:20:29 +11:00
ppc405_boards.c Do not include exec/address-spaces.h if it's not really necessary 2021-05-02 17:24:51 +02:00
ppc405_uc.c hw: Do not include qemu/log.h if it is not necessary 2021-05-02 17:24:50 +02:00
ppc440.h ppc440_uc: Basic emulation of PPC440 DMA controller 2018-07-03 09:56:52 +10:00
ppc440_bamboo.c Do not include exec/address-spaces.h if it's not really necessary 2021-05-02 17:24:51 +02:00
ppc440_pcix.c Do not include exec/address-spaces.h if it's not really necessary 2021-05-02 17:24:51 +02:00
ppc440_uc.c Do not include exec/address-spaces.h if it's not really necessary 2021-05-02 17:24:51 +02:00
ppc_booke.c hw: Do not include qemu/log.h if it is not necessary 2021-05-02 17:24:50 +02:00
ppce500_spin.c powerpc tcg: Fix Lesser GPL version number 2020-11-15 16:38:50 +01:00
prep.c Do not include exec/address-spaces.h if it's not really necessary 2021-05-02 17:24:51 +02:00
prep_systemio.c prep: add ppc-parity write method 2021-02-08 15:15:32 +01:00
rs6000_mc.c Do not include hw/boards.h if it's not really necessary 2021-05-02 17:24:51 +02:00
sam460ex.c Do not include exec/address-spaces.h if it's not really necessary 2021-05-02 17:24:51 +02:00
spapr.c hw/ppc/spapr.c: Make sure the host supports the selected MMU mode 2021-05-19 10:30:28 +10:00
spapr_caps.c qtest: delete superfluous inclusions of qtest.h 2021-03-09 06:03:53 +01:00
spapr_cpu_core.c spapr_cpu_core.c: use g_auto* in spapr_create_vcpu() 2021-01-19 10:20:29 +11:00
spapr_drc.c ppc patch queue 2021-05-04 2021-05-05 20:29:14 +01:00
spapr_events.c Do not include cpu.h if it's not really necessary 2021-05-02 17:24:51 +02:00
spapr_hcall.c hw/ppc/spapr.c: Extract MMU mode error reporting into a function 2021-05-19 10:30:28 +10:00
spapr_iommu.c Do not include exec/address-spaces.h if it's not really necessary 2021-05-02 17:24:51 +02:00
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.c: fix ibm,max-associativity-domains calculation 2021-02-10 10:43:50 +11:00
spapr_nvdimm.c ppc/spapr: Add support for implement support for H_SCM_HEALTH 2021-05-04 11:41:25 +10:00
spapr_ovec.c spapr: Improve handling of memory unplug with old guests 2021-01-19 10:20:29 +11:00
spapr_pci.c Do not include exec/address-spaces.h if it's not really necessary 2021-05-02 17:24:51 +02:00
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 Do not include cpu.h if it's not really necessary 2021-05-02 17:24:51 +02:00
spapr_rng.c Do not include cpu.h if it's not really necessary 2021-05-02 17:24:51 +02:00
spapr_rtas.c ppc patch queue 2021-05-04 2021-05-05 20:29:14 +01:00
spapr_rtas_ddw.c Do not include cpu.h if it's not really necessary 2021-05-02 17:24:51 +02:00
spapr_rtc.c Do not include cpu.h if it's not really necessary 2021-05-02 17:24:51 +02:00
spapr_tpm_proxy.c Do not include cpu.h if it's not really necessary 2021-05-02 17:24:51 +02:00
spapr_vio.c hw/ppc/spapr_vio: Reset TCE table object with device_cold_reset() 2021-05-04 13:12:59 +10:00
trace-events spapr: rename spapr_drc_detach() to spapr_drc_unplug_request() 2021-03-10 09:07:08 +11:00
trace.h trace: switch position of headers to what Meson requires 2020-08-21 06:18:24 -04:00
virtex_ml507.c Do not include exec/address-spaces.h if it's not really necessary 2021-05-02 17:24:51 +02:00