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linux-stable/arch/powerpc/kvm
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Cédric Le Goater f5af0a9787 KVM: PPC: Book3S HV: XIVE: Add support for automatic save-restore 
On P10, the feature doing an automatic "save & restore" of a VCPU
interrupt context is set by default in OPAL. When a VP context is
pulled out, the state of the interrupt registers are saved by the XIVE
interrupt controller under the internal NVP structure representing the
VP. This saves a costly store/load in guest entries and exits.

If OPAL advertises the "save & restore" feature in the device tree,
it should also have set the 'H' bit in the CAM line. Check that when
vCPUs are connected to their ICP in KVM before going any further.

Signed-off-by: Cédric Le Goater <clg@kaod.org>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20210720134209.256133-3-clg@kaod.org
2021-08-10 23:15:02 +10:00
..
book3s.c KVM: debugfs: Reuse binary stats descriptors 2021-06-24 18:00:29 -04:00
book3s.h KVM: PPC: Convert to the gfn-based MMU notifier callbacks 2021-04-17 08:31:07 -04:00
book3s_32_mmu.c KVM: PPC: Use fallthrough; 2020-03-19 16:39:52 +11:00
book3s_32_mmu_host.c powerpc/32s: move CTX_TO_VSID() into mmu-hash.h 2021-06-17 00:09:08 +10:00
book3s_32_sr.S treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 266 2019-06-05 17:30:28 +02:00
book3s_64_entry.S KVM: PPC: Book3S HV P9: implement hash host / hash guest support 2021-06-10 22:12:15 +10:00
book3s_64_mmu.c KVM: PPC: Use fallthrough; 2020-03-19 16:39:52 +11:00
book3s_64_mmu_host.c powerpc/kvm: Fix build error when PPC_MEM_KEYS/PPC_PSERIES=n 2021-04-27 10:48:37 +10:00
book3s_64_mmu_hv.c KVM: PPC: Book3S HV: Fix kvm_unmap_gfn_range_hv() for Hash MMU 2021-05-12 11:07:39 +10:00
book3s_64_mmu_radix.c KVM: PPC: Book3S HV: Use H_RPT_INVALIDATE in nested KVM 2021-06-22 23:38:28 +10:00
book3s_64_slb.S treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 266 2019-06-05 17:30:28 +02:00
book3s_64_vio.c KVM: PPC: Book3S: Fix symbol undeclared warnings 2020-09-22 11:53:55 +10:00
book3s_64_vio_hv.c KVM: PPC: Book3S HV: Remove virt mode checks from real mode handlers 2021-06-10 22:12:14 +10:00
book3s_emulate.c powerpc/32s: Change mfsrin() into a static inline function 2021-02-09 01:10:15 +11:00
book3s_exports.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 266 2019-06-05 17:30:28 +02:00
book3s_hv.c KVM: PPC: Book3S HV: XICS: Fix mapping of passthrough interrupts 2021-08-10 23:15:01 +10:00
book3s_hv_builtin.c powerpc: Replace deprecated CPU-hotplug functions. 2021-08-10 23:14:56 +10:00
book3s_hv_hmi.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 114 2019-05-24 17:39:01 +02:00
book3s_hv_interrupts.S KVM: PPC: Book3S HV: remove ISA v3.0 and v3.1 support from P7/8 path 2021-06-10 22:12:15 +10:00
book3s_hv_nested.c KVM: PPC: Book3S HV Nested: Sanitise H_ENTER_NESTED TM state 2021-07-23 16:19:38 +10:00
book3s_hv_p9_entry.c KVM: PPC: Book3S HV P9: Fix guest TM support 2021-07-15 21:53:37 +10:00
book3s_hv_ras.c KVM: PPC: Book3S HV: Don't attempt to recover machine checks for FWNMI enabled guests 2020-12-04 01:01:23 +11:00
book3s_hv_rm_mmu.c ARM: 2021-06-28 15:40:51 -07:00
book3s_hv_rm_xics.c powerpc/powernv/pci: Rework pnv_opal_pci_msi_eoi() 2021-08-10 23:15:01 +10:00
book3s_hv_rm_xive.c mm: reorder includes after introduction of linux/pgtable.h 2020-06-09 09:39:13 -07:00
book3s_hv_rmhandlers.S KVM: PPC: Book3S HV: remove ISA v3.0 and v3.1 support from P7/8 path 2021-06-10 22:12:15 +10:00
book3s_hv_tm.c KVM: PPC: Book3S HV: Treat TM-related invalid form instructions on P9 like the valid ones 2020-03-19 16:39:52 +11:00
book3s_hv_tm_builtin.c KVM: PPC: Book3S HV: Treat TM-related invalid form instructions on P9 like the valid ones 2020-03-19 16:39:52 +11:00
book3s_hv_uvmem.c Merge branch 'akpm' (patches from Andrew) 2021-06-29 17:29:11 -07:00
book3s_interrupts.S PPC KVM update for 5.9 2020-08-09 13:24:02 -04:00
book3s_mmu_hpte.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 266 2019-06-05 17:30:28 +02:00
book3s_paired_singles.c KVM: PPC: Clean up redundant 'kvm_run' parameters 2020-05-27 11:39:31 +10:00
book3s_pr.c powerpc updates for 5.14 2021-07-02 12:54:34 -07:00
book3s_pr_papr.c KVM: stats: Separate generic stats from architecture specific ones 2021-06-24 11:47:56 -04:00
book3s_rmhandlers.S powerpc: Replace RFI by rfi on book3s/32 and booke 2020-11-19 16:56:54 +11:00
book3s_rtas.c KVM: PPC: Book3S: Fix H_RTAS rets buffer overflow 2021-07-23 16:14:31 +10:00
book3s_segment.S KVM: PPC: Book3S 64: move bad_host_intr check to HV handler 2021-06-10 22:12:12 +10:00
book3s_xics.c KVM: PPC: Book3S: Assign boolean values to a bool variable 2020-12-15 22:22:06 +11:00
book3s_xics.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
book3s_xive.c KVM: PPC: Book3S HV: XIVE: Add support for automatic save-restore 2021-08-10 23:15:02 +10:00
book3s_xive.h KVM: PPC: Book3S HV: XIVE: Add support for automatic save-restore 2021-08-10 23:15:02 +10:00
book3s_xive_native.c KVM: PPC: Book3S HV: XIVE: Add support for automatic save-restore 2021-08-10 23:15:02 +10:00
book3s_xive_template.c powerpc/xive: Remove P9 DD1 flag XIVE_IRQ_FLAG_EOI_FW 2020-12-11 09:53:10 +11:00
booke.c KVM: debugfs: Reuse binary stats descriptors 2021-06-24 18:00:29 -04:00
booke.h KVM: PPC: Clean up redundant 'kvm_run' parameters 2020-05-27 11:39:31 +10:00
booke_emulate.c KVM: PPC: Clean up redundant 'kvm_run' parameters 2020-05-27 11:39:31 +10:00
booke_interrupts.S KVM: PPC: Clean up redundant kvm_run parameters in assembly 2020-07-23 15:50:01 +10:00
bookehv_interrupts.S KVM: PPC: Clean up redundant kvm_run parameters in assembly 2020-07-23 15:50:01 +10:00
e500.c KVM: PPC: Kill kvmppc_ops::mmu_destroy() and kvmppc_mmu_destroy() 2020-03-19 16:43:07 +11:00
e500.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
e500_emulate.c KVM: PPC: Clean up redundant 'kvm_run' parameters 2020-05-27 11:39:31 +10:00
e500_mmu.c KVM: PPC: Kill kvmppc_ops::mmu_destroy() and kvmppc_mmu_destroy() 2020-03-19 16:43:07 +11:00
e500_mmu_host.c KVM: PPC: Convert to the gfn-based MMU notifier callbacks 2021-04-17 08:31:07 -04:00
e500_mmu_host.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
e500mc.c KVM: PPC: Kill kvmppc_ops::mmu_destroy() and kvmppc_mmu_destroy() 2020-03-19 16:43:07 +11:00
emulate.c KVM: PPC: Clean up redundant 'kvm_run' parameters 2020-05-27 11:39:31 +10:00
emulate_loadstore.c MIPS: 2020-06-12 11:05:52 -07:00
fpu.S mm: reorder includes after introduction of linux/pgtable.h 2020-06-09 09:39:13 -07:00
irq.h
Kconfig powerpc/kvm: Force selection of CONFIG_PPC_FPU 2021-01-30 11:39:32 +11:00
Makefile KVM: stats: Add fd-based API to read binary stats data 2021-06-24 11:47:57 -04:00
mpic.c KVM: Remove unnecessary asm/kvm_host.h includes 2020-03-16 17:57:34 +01:00
powerpc.c KVM: PPC: Fix kvm_arch_vcpu_ioctl vcpu_load leak 2021-07-17 14:33:18 +10:00
timing.c powerpc/kvm: no need to check return value of debugfs_create functions 2020-03-04 22:44:25 +11:00
timing.h KVM: Remove unnecessary asm/kvm_host.h includes 2020-03-16 17:57:34 +01:00
tm.S treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 174 2019-05-30 11:26:41 -07:00
trace.h
trace_book3s.h
trace_booke.h KVM: Move arm64's MMU notifier trace events to generic code 2021-04-17 08:30:56 -04:00
trace_hv.h KVM: PPC: Fix typo on H_DISABLE_AND_GET hcall 2020-07-23 17:43:35 +10:00
trace_pr.h