Re: [PATCH 5/5] KVM: PPC: Book3s HV: Implement H_CLEAR_REF and H_CLEAR_MOD hcalls

[PATCH 0/5] Make use of hardware reference and change bits in HPT · Paul Mackerras <hidden> · 2011-12-15
[PATCH 1/5] KVM: PPC: Book3S HV: Keep HPTE locked when invalidating · Paul Mackerras <hidden> · 2011-12-15
[PATCH 2/5] KVM: PPC: Book3s HV: Maintain separate guest and host views of R and C bits · Paul Mackerras <hidden> · 2011-12-15
[PATCH 3/5] KVM: PPC: Book3S HV: Use the hardware referenced bit for kvm_age_hva · Paul Mackerras <hidden> · 2011-12-15
[PATCH 4/5] KVM: PPC: Book3s HV: Implement get_dirty_log using hardware changed bit · Paul Mackerras <hidden> · 2011-12-15
Re: [PATCH 4/5] KVM: PPC: Book3s HV: Implement get_dirty_log using hardware changed bit · Alexander Graf <hidden> · 2011-12-23
Re: [PATCH 4/5] KVM: PPC: Book3s HV: Implement get_dirty_log using hardware changed bit · Paul Mackerras <hidden> · 2011-12-25
Re: [PATCH 4/5] KVM: PPC: Book3s HV: Implement get_dirty_log using hardware changed bit · Takuya Yoshikawa <hidden> · 2011-12-26
Re: [PATCH 4/5] KVM: PPC: Book3s HV: Implement get_dirty_log using hardware changed bit · Paul Mackerras <hidden> · 2011-12-31
[PATCH 5/5] KVM: PPC: Book3s HV: Implement H_CLEAR_REF and H_CLEAR_MOD hcalls · Paul Mackerras <hidden> · 2011-12-15
Re: [PATCH 5/5] KVM: PPC: Book3s HV: Implement H_CLEAR_REF and H_CLEAR_MOD hcalls · Alexander Graf <hidden> · 2011-12-23
Re: [PATCH 0/5] Make use of hardware reference and change bits in HPT · Alexander Graf <hidden> · 2011-12-23

From: Alexander Graf <hidden>
Date: 2011-12-23 13:26:13
Also in: kvm

On 15.12.2011, at 13:04, Paul Mackerras wrote:

This adds implementations for the H_CLEAR_REF (test and clear =

reference

bit) and H_CLEAR_MOD (test and clear changed bit) hypercalls.  These
hypercalls are not used by Linux guests at this stage, and these
implementations are only compile tested.

Do we need them then? Are they mandatory in PAPR? I don't feel all that =
great having unused / untested code accessible from the guest.

Alex

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