From: Nico Boehr <nrb@linux.ibm.com>
To: Claudio Imbrenda <imbrenda@linux.ibm.com>
Cc: kvm@vger.kernel.org, borntraeger@de.ibm.com,
frankja@linux.ibm.com, thuth@redhat.com, pasic@linux.ibm.com,
david@redhat.com, linux-s390@vger.kernel.org,
linux-kernel@vger.kernel.org, scgl@linux.ibm.com,
mimu@linux.ibm.com
Subject: Re: [PATCH v10 04/19] KVM: s390: pv: refactor s390_reset_acc
Date: Mon, 30 May 2022 09:40:43 +0200 [thread overview]
Message-ID: <4aa518425958496e763294023ac950837ff8eac3.camel@linux.ibm.com> (raw)
In-Reply-To: <20220516181134.40652725@p-imbrenda>
On Mon, 2022-05-16 at 18:11 +0200, Claudio Imbrenda wrote:
[...]
> > [...]
> > > diff --git a/arch/s390/mm/gmap.c b/arch/s390/mm/gmap.c
> > > index e8904cb9dc38..a3a1f90f6ec1 100644
> > > --- a/arch/s390/mm/gmap.c
> > > +++ b/arch/s390/mm/gmap.c
> > > @@ -2676,44 +2676,81 @@ void s390_reset_cmma(struct mm_struct
> > > *mm)
> > > }
> > > EXPORT_SYMBOL_GPL(s390_reset_cmma);
> > >
> > > -/*
> > > - * make inaccessible pages accessible again
> > > - */
> > > -static int __s390_reset_acc(pte_t *ptep, unsigned long addr,
> > > - unsigned long next, struct mm_walk
> > > *walk)
> > > +#define DESTROY_LOOP_THRESHOLD 32
> >
> > maybe GATHER_NUM_PAGE_REFS_TO_TAKE?
>
> what about GATHER_GET_PAGES ?
Yes, that's good as well.
next prev parent reply other threads:[~2022-05-30 7:41 UTC|newest]
Thread overview: 42+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-04-14 8:02 [PATCH v10 00/19] KVM: s390: pv: implement lazy destroy for reboot Claudio Imbrenda
2022-04-14 8:02 ` [PATCH v10 01/19] KVM: s390: pv: leak the topmost page table when destroy fails Claudio Imbrenda
2022-04-14 11:30 ` Janosch Frank
2022-04-14 12:19 ` Claudio Imbrenda
2022-05-05 14:45 ` Thomas Huth
2022-05-06 11:30 ` Claudio Imbrenda
2022-05-16 7:22 ` Nico Boehr
2022-05-16 15:55 ` Claudio Imbrenda
2022-04-14 8:02 ` [PATCH v10 02/19] KVM: s390: pv: handle secure storage violations for protected guests Claudio Imbrenda
2022-05-05 17:10 ` Thomas Huth
2022-05-06 11:33 ` Claudio Imbrenda
2022-04-14 8:02 ` [PATCH v10 03/19] KVM: s390: pv: handle secure storage exceptions for normal guests Claudio Imbrenda
2022-04-14 8:02 ` [PATCH v10 04/19] KVM: s390: pv: refactor s390_reset_acc Claudio Imbrenda
2022-05-16 8:04 ` Nico Boehr
2022-05-16 16:11 ` Claudio Imbrenda
2022-05-30 7:40 ` Nico Boehr [this message]
2022-05-30 10:50 ` Claudio Imbrenda
2022-04-14 8:02 ` [PATCH v10 05/19] KVM: s390: pv: usage counter instead of flag Claudio Imbrenda
2022-04-14 8:02 ` [PATCH v10 06/19] KVM: s390: pv: add export before import Claudio Imbrenda
2022-04-14 8:02 ` [PATCH v10 07/19] KVM: s390: pv: module parameter to fence lazy destroy Claudio Imbrenda
2022-04-14 8:02 ` [PATCH v10 08/19] KVM: s390: pv: clear the state without memset Claudio Imbrenda
2022-04-14 8:03 ` [PATCH v10 09/19] KVM: s390: pv: Add kvm_s390_cpus_from_pv to kvm-s390.h and add documentation Claudio Imbrenda
2022-04-14 8:03 ` [PATCH v10 10/19] KVM: s390: pv: add mmu_notifier Claudio Imbrenda
2022-04-14 8:03 ` [PATCH v10 11/19] s390/mm: KVM: pv: when tearing down, try to destroy protected pages Claudio Imbrenda
2022-04-14 8:03 ` [PATCH v10 12/19] KVM: s390: pv: refactoring of kvm_s390_pv_deinit_vm Claudio Imbrenda
2022-04-14 8:03 ` [PATCH v10 13/19] KVM: s390: pv: destroy the configuration before its memory Claudio Imbrenda
2022-05-30 7:37 ` Nico Boehr
2022-05-30 12:05 ` Claudio Imbrenda
2022-04-14 8:03 ` [PATCH v10 14/19] KVM: s390: pv: cleanup leftover protected VMs if needed Claudio Imbrenda
2022-05-30 8:11 ` Nico Boehr
2022-05-30 10:43 ` Claudio Imbrenda
2022-04-14 8:03 ` [PATCH v10 15/19] KVM: s390: pv: asynchronous destroy for reboot Claudio Imbrenda
2022-05-30 9:46 ` Nico Boehr
2022-05-30 11:06 ` Claudio Imbrenda
2022-04-14 8:03 ` [PATCH v10 16/19] KVM: s390: pv: api documentation for asynchronous destroy Claudio Imbrenda
2022-05-30 9:47 ` Nico Boehr
2022-04-14 8:03 ` [PATCH v10 17/19] KVM: s390: pv: add KVM_CAP_S390_PROTECTED_ASYNC_DISABLE Claudio Imbrenda
2022-05-30 10:24 ` Nico Boehr
2022-04-14 8:03 ` [PATCH v10 18/19] KVM: s390: pv: avoid export before import if possible Claudio Imbrenda
2022-05-30 10:07 ` Nico Boehr
2022-05-30 11:16 ` Claudio Imbrenda
2022-04-14 8:03 ` [PATCH v10 19/19] KVM: s390: pv: support for Destroy fast UVC Claudio Imbrenda
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