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Message-ID: <6519e3f4-7cea-01a6-724e-a0bce10c3c19@redhat.com>
Date: Fri, 21 Jul 2023 17:12:51 +0200
From: Paolo Bonzini <pbonzini@...hat.com>
To: Sean Christopherson <seanjc@...gle.com>,
Marc Zyngier <maz@...nel.org>,
Oliver Upton <oliver.upton@...ux.dev>,
Huacai Chen <chenhuacai@...nel.org>,
Michael Ellerman <mpe@...erman.id.au>,
Anup Patel <anup@...infault.org>,
Paul Walmsley <paul.walmsley@...ive.com>,
Palmer Dabbelt <palmer@...belt.com>,
Albert Ou <aou@...s.berkeley.edu>,
"Matthew Wilcox (Oracle)" <willy@...radead.org>,
Andrew Morton <akpm@...ux-foundation.org>,
Paul Moore <paul@...l-moore.com>,
James Morris <jmorris@...ei.org>,
"Serge E. Hallyn" <serge@...lyn.com>
Cc: kvm@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
kvmarm@...ts.linux.dev, linux-mips@...r.kernel.org,
linuxppc-dev@...ts.ozlabs.org, kvm-riscv@...ts.infradead.org,
linux-riscv@...ts.infradead.org, linux-fsdevel@...r.kernel.org,
linux-mm@...ck.org, linux-security-module@...r.kernel.org,
linux-kernel@...r.kernel.org,
Chao Peng <chao.p.peng@...ux.intel.com>,
Fuad Tabba <tabba@...gle.com>,
Jarkko Sakkinen <jarkko@...nel.org>,
Yu Zhang <yu.c.zhang@...ux.intel.com>,
Vishal Annapurve <vannapurve@...gle.com>,
Ackerley Tng <ackerleytng@...gle.com>,
Maciej Szmigiero <mail@...iej.szmigiero.name>,
Vlastimil Babka <vbabka@...e.cz>,
David Hildenbrand <david@...hat.com>,
Quentin Perret <qperret@...gle.com>,
Michael Roth <michael.roth@....com>,
Wang <wei.w.wang@...el.com>,
Liam Merwick <liam.merwick@...cle.com>,
Isaku Yamahata <isaku.yamahata@...il.com>,
"Kirill A . Shutemov" <kirill.shutemov@...ux.intel.com>
Subject: Re: [RFC PATCH v11 16/29] KVM: Allow arch code to track number of
memslot address spaces per VM
On 7/19/23 01:44, Sean Christopherson wrote:
> @@ -4725,9 +4725,9 @@ static int kvm_vm_ioctl_check_extension_generic(struct kvm *kvm, long arg)
> case KVM_CAP_IRQ_ROUTING:
> return KVM_MAX_IRQ_ROUTES;
> #endif
> -#if KVM_ADDRESS_SPACE_NUM > 1
> +#if KVM_MAX_NR_ADDRESS_SPACES > 1
> case KVM_CAP_MULTI_ADDRESS_SPACE:
> - return KVM_ADDRESS_SPACE_NUM;
> + return KVM_MAX_NR_ADDRESS_SPACES;
> #endif
Since this is a VM ioctl, it should return
kvm_arch_nr_memslot_as_ids(kvm) if kvm != NULL.
Paolo
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