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linux-stable/arch/powerpc/kvm
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Paul Mackerras 8943633cf9 KVM: PPC: Work around POWER7 DABR corruption problem 
It turns out that on POWER7, writing to the DABR can cause a corrupted
value to be written if the PMU is active and updating SDAR in continuous
sampling mode.  To work around this, we make sure that the PMU is inactive
and SDAR updates are disabled (via MMCRA) when we are context-switching
DABR.

When the guest sets DABR via the H_SET_DABR hypercall, we use a slightly
different workaround, which is to read back the DABR and write it again
if it got corrupted.

While we are at it, make it consistent that the saving and restoring
of the guest's non-volatile GPRs and the FPRs are done with the guest
setup of the PMU active.

Signed-off-by: Paul Mackerras <paulus@samba.org>
Signed-off-by: Alexander Graf <agraf@suse.de>
Signed-off-by: Avi Kivity <avi@redhat.com>
2012-04-08 14:01:36 +03:00
..
44x.c KVM: PPC: booke: Move vm core init/destroy out of booke.c 2012-04-08 12:51:05 +03:00
44x_emulate.c KVM: PPC: fix exit accounting for SPRs, tlbwe, tlbsx 2011-05-22 08:47:47 -04:00
44x_tlb.c KVM: PPC: e500: Add shadow PID support 2011-07-12 13:16:39 +03:00
44x_tlb.h
book3s.c KVM: PPC: booke: rework rescheduling checks 2012-04-08 12:55:05 +03:00
book3s_32_mmu.c KVM: PPC: Put segment registers in shared page 2010-10-24 10:52:11 +02:00
book3s_32_mmu_host.c KVM: PPC: Use get/set for to_svcpu to help preemption 2012-03-05 14:52:30 +02:00
book3s_32_sr.S KVM: PPC: book3s_pr: Simplify transitions between virtual and real mode 2011-09-25 19:52:29 +03:00
book3s_64_mmu.c KVM: PPC: Interpret SDR1 as HVA in PAPR mode 2011-09-25 19:52:21 +03:00
book3s_64_mmu_host.c KVM: PPC: Use get/set for to_svcpu to help preemption 2012-03-05 14:52:30 +02:00
book3s_64_mmu_hv.c KVM: PPC: factor out lpid allocator from book3s_64_mmu_hv 2012-04-08 12:51:02 +03:00
book3s_64_slb.S KVM: PPC: book3s_pr: Simplify transitions between virtual and real mode 2011-09-25 19:52:29 +03:00
book3s_64_vio_hv.c KVM: PPC: Accelerate H_PUT_TCE by implementing it in real mode 2011-07-12 13:16:56 +03:00
book3s_emulate.c powerpc/kvm: Fallout from system.h disintegration 2012-04-02 14:00:04 +10:00
book3s_exports.c powerpc: various straight conversions from module.h --> export.h 2011-10-31 19:30:44 -04:00
book3s_hv.c KVM: PPC: Book3S HV: Report stolen time to guest through dispatch trace log 2012-04-08 14:01:29 +03:00
book3s_hv_builtin.c KVM: PPC: Book3S HV: Fix kvm_alloc_linear in case where no linears exist 2012-04-03 16:42:22 +10:00
book3s_hv_interrupts.S KVM: PPC: Work around POWER7 DABR corruption problem 2012-04-08 14:01:36 +03:00
book3s_hv_rm_mmu.c KVM: Move gfn_to_memslot() to kvm_host.h 2012-03-05 14:57:22 +02:00
book3s_hv_rmhandlers.S KVM: PPC: Work around POWER7 DABR corruption problem 2012-04-08 14:01:36 +03:00
book3s_interrupts.S KVM: PPC: Save/Restore CR over vcpu_run 2012-04-03 16:42:34 +10:00
book3s_mmu_hpte.c KVM: PPC: Move fields between struct kvm_vcpu_arch and kvmppc_vcpu_book3s 2011-07-12 13:16:46 +03:00
book3s_paired_singles.c powerpc/kvm: Fallout from system.h disintegration 2012-04-02 14:00:04 +10:00
book3s_pr.c KVM: PPC: Book3S: PR: Fix preemption 2012-04-03 16:42:39 +10:00
book3s_pr_papr.c KVM: PPC: Book3s: PR: Add SPAPR H_BULK_REMOVE support 2012-04-08 12:55:31 +03:00
book3s_rmhandlers.S KVM: PPC: book3s_pr: Simplify transitions between virtual and real mode 2011-09-25 19:52:29 +03:00
book3s_segment.S KVM: PPC: book3s_pr: Simplify transitions between virtual and real mode 2011-09-25 19:52:29 +03:00
booke.c KVM: PPC: Booke: only prepare to enter when we enter 2012-04-08 12:55:29 +03:00
booke.h KVM: PPC: booke: standard PPC floating point support 2012-04-08 12:54:15 +03:00
booke_emulate.c KVM: PPC: booke: category E.HV (GS-mode) support 2012-04-08 12:51:19 +03:00
booke_interrupts.S KVM: PPC: Save/Restore CR over vcpu_run 2012-04-03 16:42:34 +10:00
bookehv_interrupts.S Restore guest CR after exit timing calculation 2012-04-08 14:01:31 +03:00
e500.c KVM: PPC: e500: refactor core-specific TLB code 2012-04-08 12:51:12 +03:00
e500.h KVM: PPC: rename CONFIG_KVM_E500 -> CONFIG_KVM_E500V2 2012-04-08 12:54:57 +03:00
e500_emulate.c KVM: PPC: e500mc: Add doorbell emulation support 2012-04-08 12:54:50 +03:00
e500_tlb.c KVM: PPC: e500: fix typo in tlb code 2012-04-08 12:55:22 +03:00
e500mc.c KVM: PPC: e500mc support 2012-04-08 12:54:33 +03:00
emulate.c KVM: PPC: booke: Improve timer register emulation 2012-03-05 14:52:27 +02:00
fpu.S powerpc: Remove fpscr use from [kvm_]cvt_{fd,df} 2010-09-02 14:07:32 +10:00
Kconfig KVM: PPC: make e500v2 kvm and e500mc cpu mutually exclusive 2012-04-08 12:54:59 +03:00
Makefile KVM: PPC: rename CONFIG_KVM_E500 -> CONFIG_KVM_E500V2 2012-04-08 12:54:57 +03:00
powerpc.c KVM: PPC: rename CONFIG_KVM_E500 -> CONFIG_KVM_E500V2 2012-04-08 12:54:57 +03:00
timing.c KVM: PPC: fix partial application of "exit timing in ticks" 2011-07-12 13:16:28 +03:00
timing.h KVM: PPC: booke: category E.HV (GS-mode) support 2012-04-08 12:51:19 +03:00
trace.h KVM: PPC: booke: Add booke206 TLB trace 2012-03-05 14:52:40 +02:00