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

[Christian Borntraeger]

Am 11.11.21 um 17:32 schrieb Paolo Bonzini:
> On 11/11/21 17:27, Vitaly Kuznetsov wrote:
>> 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)
> 
> Christian, can you look at this for s390?  Returning a fixed value seems wrong for KVM_CAP_NR_VCPUS.

will do. (Sorry I was OOO the last days).
> 
> Thanks,
> 
> Paolo
> 
>> 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(-)
>>
>