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Subject[PATCH 0/4] KVM: add KVM_CREATE_VM2 to allow dynamic kvm->vcpus array
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The basic idea is to let userspace provide the desired maximal number of
VCPUs and allocate only necessary memory for them.

The goal is to freeze KVM_MAX_VCPUS at its current level and only increase the
new KVM_MAX_CONFIGURABLE_VCPUS, probably directly to INT_MAX/KVM_VCPU_ID, so we
don't have to worry about it for a while.

PPC should be interested in this as they set KVM_MAX_VCPUS to NR_CPUS
and probably waste few pages for every guest this way.


Radim Krčmář (4):
KVM: remove unused __KVM_HAVE_ARCH_VM_ALLOC
KVM: allocate kvm->vcpus separately
KVM: add KVM_CREATE_VM2 system ioctl
KVM: x86: enable configurable MAX_VCPU

Documentation/virtual/kvm/api.txt | 28 +++++++++++++++
arch/x86/include/asm/kvm_host.h | 1 +
arch/x86/kvm/irq_comm.c | 4 +--
include/linux/kvm_host.h | 23 +++++-------
include/uapi/linux/kvm.h | 8 +++++
virt/kvm/kvm_main.c | 76 +++++++++++++++++++++++++++++++++------
6 files changed, 114 insertions(+), 26 deletions(-)

--
2.12.0

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