linux-kernel - [PATCH RFC v3 0/9] KVM: allow dynamic kvm->vcpus array

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Message-Id: <20170821203530.9266-1-rkrcmar@redhat.com>
Date:   Mon, 21 Aug 2017 22:35:21 +0200
From:   Radim Krčmář <rkrcmar@...hat.com>
To:     linux-kernel@...r.kernel.org, kvm@...r.kernel.org,
        linux-mips@...ux-mips.org, kvm-ppc@...r.kernel.org,
        linux-s390@...r.kernel.org, linux-arm-kernel@...ts.infradead.org
Cc:     Paolo Bonzini <pbonzini@...hat.com>,
        David Hildenbrand <david@...hat.com>,
        Christoffer Dall <cdall@...aro.org>,
        Marc Zyngier <marc.zyngier@....com>,
        Christian Borntraeger <borntraeger@...ibm.com>,
        Cornelia Huck <cohuck@...hat.com>,
        James Hogan <james.hogan@...tec.com>,
        Paul Mackerras <paulus@...abs.org>,
        Alexander Graf <agraf@...e.com>
Subject: [PATCH RFC v3 0/9] KVM: allow dynamic kvm->vcpus array

The only common part with v2 is [v3 5/9].

The crucial part of this series is adding a separate mechanism for
kvm_for_each_vcpu() [v3 8/9] and with that change, I think that the
dynamic array [v3 9/9] would be nicer if protected by RCU, like in v2:
The protection can be nicely hidden in kvm_get_vcpu().  I just had the
split done before implementing [v3 8/9] and presented it for
consideration.

Smoke tested on x86 only.


Radim Krčmář (9):
  KVM: s390: optimize detection of started vcpus
  KVM: arm/arm64: fix vcpu self-detection in vgic_v3_dispatch_sgi()
  KVM: remember position in kvm->vcpus array
  KVM: arm/arm64: use locking helpers in kvm_vgic_create()
  KVM: remove unused __KVM_HAVE_ARCH_VM_ALLOC
  KVM: rework kvm_vcpu_on_spin loop
  KVM: add kvm_free_vcpus and kvm_arch_free_vcpus
  KVM: implement kvm_for_each_vcpu with a list
  KVM: split kvm->vcpus into chunks

 arch/mips/kvm/mips.c                |  19 ++----
 arch/powerpc/kvm/book3s_32_mmu.c    |   3 +-
 arch/powerpc/kvm/book3s_64_mmu.c    |   3 +-
 arch/powerpc/kvm/book3s_hv.c        |   7 +-
 arch/powerpc/kvm/book3s_pr.c        |   5 +-
 arch/powerpc/kvm/book3s_xics.c      |   2 +-
 arch/powerpc/kvm/book3s_xics.h      |   3 +-
 arch/powerpc/kvm/book3s_xive.c      |  18 +++---
 arch/powerpc/kvm/book3s_xive.h      |   3 +-
 arch/powerpc/kvm/e500_emulate.c     |   3 +-
 arch/powerpc/kvm/powerpc.c          |  16 ++---
 arch/s390/include/asm/kvm_host.h    |   1 +
 arch/s390/kvm/interrupt.c           |   3 +-
 arch/s390/kvm/kvm-s390.c            |  77 ++++++++--------------
 arch/s390/kvm/kvm-s390.h            |   6 +-
 arch/s390/kvm/sigp.c                |   3 +-
 arch/x86/kvm/hyperv.c               |   3 +-
 arch/x86/kvm/i8254.c                |   3 +-
 arch/x86/kvm/i8259.c                |   7 +-
 arch/x86/kvm/ioapic.c               |   3 +-
 arch/x86/kvm/irq_comm.c             |  10 +--
 arch/x86/kvm/lapic.c                |   5 +-
 arch/x86/kvm/svm.c                  |   3 +-
 arch/x86/kvm/vmx.c                  |   5 +-
 arch/x86/kvm/x86.c                  |  34 ++++------
 include/linux/kvm_host.h            |  81 ++++++++++++-----------
 virt/kvm/arm/arch_timer.c           |  10 ++-
 virt/kvm/arm/arm.c                  |  25 ++++----
 virt/kvm/arm/pmu.c                  |   3 +-
 virt/kvm/arm/psci.c                 |   7 +-
 virt/kvm/arm/vgic/vgic-init.c       |  31 ++++-----
 virt/kvm/arm/vgic/vgic-kvm-device.c |  30 +++++----
 virt/kvm/arm/vgic/vgic-mmio-v2.c    |   5 +-
 virt/kvm/arm/vgic/vgic-mmio-v3.c    |  22 ++++---
 virt/kvm/arm/vgic/vgic.c            |   3 +-
 virt/kvm/kvm_main.c                 | 124 +++++++++++++++++++++++-------------
 36 files changed, 278 insertions(+), 308 deletions(-)

-- 
2.13.3