From: Vitaly Kuznetsov <vkuznets@redhat.com>
To: kvm@vger.kernel.org, Paolo Bonzini <pbonzini@redhat.com>
Cc: Sean Christopherson <seanjc@google.com>,
Wanpeng Li <wanpengli@tencent.com>,
Jim Mattson <jmattson@google.com>,
Eduardo Habkost <ehabkost@redhat.com>,
Marc Zyngier <maz@kernel.org>, Andrew Jones <drjones@redhat.com>,
Huacai Chen <chenhuacai@kernel.org>,
Aleksandar Markovic <aleksandar.qemu.devel@gmail.com>,
Anup Patel <anup.patel@wdc.com>,
Paul Mackerras <paulus@ozlabs.org>,
Michael Ellerman <mpe@ellerman.id.au>,
Christian Borntraeger <borntraeger@de.ibm.com>,
Janosch Frank <frankja@linux.ibm.com>,
kvm-ppc@vger.kernel.org, linux-arm-kernel@lists.infradead.org,
linux-mips@vger.kernel.org, kvm-riscv@lists.infradead.org,
linux-s390@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: [PATCH v2 0/6] KVM: Cap KVM_CAP_NR_VCPUS by KVM_CAP_MAX_VCPUS and re-purpose it on x86
Date: Tue, 16 Nov 2021 17:34:37 +0100 [thread overview]
Message-ID: <20211116163443.88707-1-vkuznets@redhat.com> (raw)
Changes since v1:
- PATCH6 for s390 added.
- On ARM64, do not make KVM_CAP_NR_VCPUS return value dependent on whether
it is a system-wide ioctl or a per-VM one [Marc Zyngier].
Original description:
This is a continuation 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 (6):
KVM: arm64: Cap KVM_CAP_NR_VCPUS by kvm_arm_default_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: s390: Cap KVM_CAP_NR_VCPUS by num_online_cpus()
KVM: x86: Drop arbitraty KVM_SOFT_MAX_VCPUS
arch/arm64/kvm/arm.c | 9 ++++++++-
arch/mips/kvm/mips.c | 2 +-
arch/powerpc/kvm/powerpc.c | 4 ++--
arch/riscv/kvm/vm.c | 2 +-
arch/s390/kvm/kvm-s390.c | 2 ++
arch/x86/include/asm/kvm_host.h | 1 -
arch/x86/kvm/x86.c | 2 +-
7 files changed, 15 insertions(+), 7 deletions(-)
--
2.33.1
next reply other threads:[~2021-11-16 16:34 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-11-16 16:34 Vitaly Kuznetsov [this message]
2021-11-16 16:34 ` [PATCH v2 1/6] KVM: arm64: Cap KVM_CAP_NR_VCPUS by kvm_arm_default_max_vcpus() Vitaly Kuznetsov
2021-11-17 9:13 ` Marc Zyngier
2021-11-17 12:07 ` Paolo Bonzini
2021-11-16 16:34 ` [PATCH v2 2/6] KVM: MIPS: Cap KVM_CAP_NR_VCPUS by KVM_CAP_MAX_VCPUS Vitaly Kuznetsov
2021-11-16 16:34 ` [PATCH v2 3/6] KVM: PPC: " Vitaly Kuznetsov
2021-11-16 16:34 ` [PATCH v2 4/6] KVM: RISC-V: " Vitaly Kuznetsov
2021-11-17 5:02 ` Anup Patel
2021-11-16 16:34 ` [PATCH v2 5/6] KVM: s390: Cap KVM_CAP_NR_VCPUS by num_online_cpus() Vitaly Kuznetsov
2021-11-17 7:33 ` Christian Borntraeger
2021-11-16 16:34 ` [PATCH v2 6/6] KVM: x86: Drop arbitraty KVM_SOFT_MAX_VCPUS Vitaly Kuznetsov
2021-11-17 12:12 ` Paolo Bonzini
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