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Re: [PATCH RFC 0/2] KVM: s390: avoid having to enable vm.alloc_pgste

From Heiko Carstens <heiko.carstens@de.ibm.com>
Newsgroups linux.kernel
Subject Re: [PATCH RFC 0/2] KVM: s390: avoid having to enable vm.alloc_pgste
Date 2017-06-02 09:10 +0200
Message-ID <tNOSC-698-17@gated-at.bofh.it> (permalink)
References <tMvS2-2uZ-7@gated-at.bofh.it> <tNvPY-1sb-15@gated-at.bofh.it> <tNwsF-1V9-5@gated-at.bofh.it>
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On Thu, Jun 01, 2017 at 01:27:28PM +0200, David Hildenbrand wrote:
> An alternative: Have some process that enables PGSTE for all of its
> future children. Fork+execv qemu. However, such a process in between
> will most likely confuse tooling like libvirt when it comes to process ids.

That would be something like sys_personality() vs setarch, e.g. adding a
new s390 specific personality flag and then do something like

setarch s390x --kvm qemu...

However I'm afraid that this is also not acceptable from a usability point
of view.

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[PATCH RFC 0/2] KVM: s390: avoid having to enable vm.alloc_pgste David Hildenbrand <david@redhat.com> - 2017-05-29 18:40 +0200
  [PATCH RFC 2/2] KVM: s390: Introduce KVM_VM_S390_LATE_MMAP David Hildenbrand <david@redhat.com> - 2017-05-29 18:40 +0200
  [PATCH RFC 1/2] s390x: mm: allow mixed page table types (2k and 4k) David Hildenbrand <david@redhat.com> - 2017-05-29 18:40 +0200
    Re: [PATCH RFC 1/2] s390x: mm: allow mixed page table types (2k and  4k) Christian Borntraeger <borntraeger@de.ibm.com> - 2017-06-01 13:40 +0200
      Re: [PATCH RFC 1/2] s390x: mm: allow mixed page table types (2k and  4k) David Hildenbrand <david@redhat.com> - 2017-06-01 14:50 +0200
    Re: [PATCH RFC 1/2] s390x: mm: allow mixed page table types (2k and  4k) David Hildenbrand <david@redhat.com> - 2017-06-01 15:00 +0200
      Re: [PATCH RFC 1/2] s390x: mm: allow mixed page table types (2k and  4k) Christian Borntraeger <borntraeger@de.ibm.com> - 2017-06-02 09:20 +0200
  Re: [PATCH RFC 0/2] KVM: s390: avoid having to enable  vm.alloc_pgste Martin Schwidefsky <schwidefsky@de.ibm.com> - 2017-06-01 12:50 +0200
    Re: [PATCH RFC 0/2] KVM: s390: avoid having to enable vm.alloc_pgste Christian Borntraeger <borntraeger@de.ibm.com> - 2017-06-01 13:30 +0200
    Re: [PATCH RFC 0/2] KVM: s390: avoid having to enable vm.alloc_pgste David Hildenbrand <david@redhat.com> - 2017-06-01 13:30 +0200
      Re: [PATCH RFC 0/2] KVM: s390: avoid having to enable vm.alloc_pgste Heiko Carstens <heiko.carstens@de.ibm.com> - 2017-06-02 09:10 +0200
    Re: [PATCH RFC 0/2] KVM: s390: avoid having to enable vm.alloc_pgste Heiko Carstens <heiko.carstens@de.ibm.com> - 2017-06-02 09:10 +0200
      Re: [PATCH RFC 0/2] KVM: s390: avoid having to enable  vm.alloc_pgste Martin Schwidefsky <schwidefsky@de.ibm.com> - 2017-06-02 09:20 +0200
        Re: [PATCH RFC 0/2] KVM: s390: avoid having to enable vm.alloc_pgste Christian Borntraeger <borntraeger@de.ibm.com> - 2017-06-02 09:30 +0200
          Re: [PATCH RFC 0/2] KVM: s390: avoid having to enable  vm.alloc_pgste Martin Schwidefsky <schwidefsky@de.ibm.com> - 2017-06-02 10:20 +0200
        Re: [PATCH RFC 0/2] KVM: s390: avoid having to enable vm.alloc_pgste Christian Borntraeger <borntraeger@de.ibm.com> - 2017-06-02 09:30 +0200
      Re: [PATCH RFC 0/2] KVM: s390: avoid having to enable vm.alloc_pgste Christian Borntraeger <borntraeger@de.ibm.com> - 2017-06-02 09:20 +0200
      Re: [PATCH RFC 0/2] KVM: s390: avoid having to enable  vm.alloc_pgste Martin Schwidefsky <schwidefsky@de.ibm.com> - 2017-06-02 11:50 +0200
        Re: [PATCH RFC 0/2] KVM: s390: avoid having to enable vm.alloc_pgste Christian Borntraeger <borntraeger@de.ibm.com> - 2017-06-02 12:20 +0200
          Re: [PATCH RFC 0/2] KVM: s390: avoid having to enable  vm.alloc_pgste Martin Schwidefsky <schwidefsky@de.ibm.com> - 2017-06-02 13:00 +0200
            Re: [PATCH RFC 0/2] KVM: s390: avoid having to enable vm.alloc_pgste Christian Borntraeger <borntraeger@de.ibm.com> - 2017-06-02 15:30 +0200
              Re: [PATCH RFC 0/2] KVM: s390: avoid having to enable  vm.alloc_pgste Martin Schwidefsky <schwidefsky@de.ibm.com> - 2017-06-07 14:40 +0200
        Re: [PATCH RFC 0/2] KVM: s390: avoid having to enable vm.alloc_pgste Heiko Carstens <heiko.carstens@de.ibm.com> - 2017-06-02 12:30 +0200
          Re: [PATCH RFC 0/2] KVM: s390: avoid having to enable  vm.alloc_pgste Martin Schwidefsky <schwidefsky@de.ibm.com> - 2017-06-02 12:50 +0200
      Re: [PATCH RFC 0/2] KVM: s390: avoid having to enable vm.alloc_pgste David Hildenbrand <david@redhat.com> - 2017-06-02 13:00 +0200

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