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Paul Mackerras bad3b5075e KVM: PPC: Book3s HV: Maintain separate guest and host views of R and C bits 
This allows both the guest and the host to use the referenced (R) and
changed (C) bits in the guest hashed page table.  The guest has a view
of R and C that is maintained in the guest_rpte field of the revmap
entry for the HPTE, and the host has a view that is maintained in the
rmap entry for the associated gfn.

Both view are updated from the guest HPT.  If a bit (R or C) is zero
in either view, it will be initially set to zero in the HPTE (or HPTEs),
until set to 1 by hardware.  When an HPTE is removed for any reason,
the R and C bits from the HPTE are ORed into both views.  We have to
be careful to read the R and C bits from the HPTE after invalidating
it, but before unlocking it, in case of any late updates by the hardware.

Signed-off-by: Paul Mackerras <paulus@samba.org>
Signed-off-by: Alexander Graf <agraf@suse.de>
Signed-off-by: Avi Kivity <avi@redhat.com>
 		2012-03-05 14:52:39 +02:00
..
44x.c powerpc: include export.h for files using EXPORT_SYMBOL/THIS_MODULE 2011-10-31 19:30:38 -04:00
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 KVM: ppc: rename 44x MMU functions used in booke.c 2009-03-24 11:02:56 +02:00
Kconfig KVM: PPC: Implement MMU notifiers for Book3S HV guests 2012-03-05 14:52:38 +02:00
Makefile KVM: PPC: Assemble book3s{,_hv}_rmhandlers.S separately 2011-09-25 19:52:28 +03:00
book3s.c KVM: PPC: booke: Improve timer register emulation 2012-03-05 14:52:27 +02:00
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: Book3s HV: Maintain separate guest and host views of R and C bits 2012-03-05 14:52:39 +02:00
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 KVM: PPC: Use get/set for to_svcpu to help preemption 2012-03-05 14:52:30 +02:00
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: Implement MMU notifiers for Book3S HV guests 2012-03-05 14:52:38 +02:00
book3s_hv_builtin.c KVM: PPC: annotate kvm_rma_init as __init 2011-12-27 11:26:40 +02:00
book3s_hv_interrupts.S KVM: PPC: book3s_hv: Add support for PPC970-family processors 2011-07-12 13:16:59 +03:00
book3s_hv_rm_mmu.c KVM: PPC: Book3s HV: Maintain separate guest and host views of R and C bits 2012-03-05 14:52:39 +02:00
book3s_hv_rmhandlers.S KVM: PPC: Allow for read-only pages backing a Book3S HV guest 2012-03-05 14:52:38 +02:00
book3s_interrupts.S KVM: PPC: book3s_pr: Simplify transitions between virtual and real mode 2011-09-25 19:52:29 +03:00
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 Merge branch 'kvm-updates/2.6.37' of git://git.kernel.org/pub/scm/virt/kvm/kvm 2010-10-24 12:47:25 -07:00
book3s_pr.c KVM: PPC: Book3S: PR: Fix signal check race 2012-03-05 14:52:30 +02:00
book3s_pr_papr.c KVM: PPC: Add PAPR hypercall code for PR mode 2011-09-25 19:52:24 +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: Improve timer register emulation 2012-03-05 14:52:27 +02:00
booke.h KVM: PPC: booke: Improve timer register emulation 2012-03-05 14:52:27 +02:00
booke_emulate.c KVM: PPC: booke: Improve timer register emulation 2012-03-05 14:52:27 +02:00
booke_interrupts.S KVM: PPC: Paravirtualize SPRG4-7, ESR, PIR, MASn 2012-03-05 14:52:26 +02:00
e500.c KVM: PPC: Paravirtualize SPRG4-7, ESR, PIR, MASn 2012-03-05 14:52:26 +02:00
e500_emulate.c KVM: PPC: Paravirtualize SPRG4-7, ESR, PIR, MASn 2012-03-05 14:52:26 +02:00
e500_tlb.c KVM: PPC: e500: use hardware hint when loading TLB0 entries 2012-03-05 14:52:34 +02:00
e500_tlb.h KVM: PPC: Paravirtualize SPRG4-7, ESR, PIR, MASn 2012-03-05 14:52:26 +02:00
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
powerpc.c KVM: PPC: Add KVM_CAP_NR_VCPUS and KVM_CAP_MAX_VCPUS 2012-03-05 14:52:38 +02:00
timing.c KVM: PPC: fix partial application of "exit timing in ticks" 2011-07-12 13:16:28 +03:00
timing.h KVM: powerpc: Fix BUILD_BUG_ON condition 2009-12-03 09:32:22 +02:00
trace.h KVM: PPC: Use get/set for to_svcpu to help preemption 2012-03-05 14:52:30 +02:00