[PATCH 0/5] KVM: Cap KVM_CAP_NR_VCPUS by KVM_CAP_MAX_VCPUS and re-purpose it on x86

Vitaly Kuznetsov
2021-11-11T16:28:04Z

This is a comtinuation of "KVM: x86: Drop arbitraty KVM_SOFT_MAX_VCPUS"
(https://lore.kernel.org/kvm/20211111134733.86601-1-vkuznets@redhat.com/)
work.

1) Enforce KVM_CAP_NR_VCPUS <= KVM_CAP_MAX_VCPUS rule on all
architectures. [Sean Christopherson]
2) Make KVM_CAP_NR_VCPUS return num_online_cpus() and not an arbitrary
value of '710' on x86.

Everything but x86 was only 'eyeball tested', the change is trivial
but sorry in advance if I screwed up)

Vitaly Kuznetsov (5):
KVM: arm64: Cap KVM_CAP_NR_VCPUS by KVM_CAP_MAX_VCPUS
KVM: MIPS: Cap KVM_CAP_NR_VCPUS by KVM_CAP_MAX_VCPUS
KVM: PPC: Cap KVM_CAP_NR_VCPUS by KVM_CAP_MAX_VCPUS
KVM: RISC-V: Cap KVM_CAP_NR_VCPUS by KVM_CAP_MAX_VCPUS
KVM: x86: Drop arbitraty KVM_SOFT_MAX_VCPUS

arch/arm64/kvm/arm.c | 7 ++++++-
arch/mips/kvm/mips.c | 2 +-
arch/powerpc/kvm/powerpc.c | 4 ++--
arch/riscv/kvm/vm.c | 2 +-
arch/x86/include/asm/kvm_host.h | 1 -
arch/x86/kvm/x86.c | 2 +-
6 files changed, 11 insertions(+), 7 deletions(-)

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2.33.1