From: Sean Christopherson <seanjc@google.com>
To: Oliver Upton <oliver.upton@linux.dev>
Cc: kvm@vger.kernel.org, Paolo Bonzini <pbonzini@redhat.com>,
Oliver Upton <oupton@google.com>
Subject: Re: [PATCH v3 4/6] KVM: Pass the name of the VM fd to kvm_create_vm_debugfs()
Date: Fri, 5 Aug 2022 19:20:35 +0000 [thread overview]
Message-ID: <Yu1tg3z08hb7Vqon@google.com> (raw)
In-Reply-To: <20220720092259.3491733-5-oliver.upton@linux.dev>
On Wed, Jul 20, 2022, Oliver Upton wrote:
> From: Oliver Upton <oupton@google.com>
>
> At the time the VM fd is used in kvm_create_vm_debugfs(), the fd has
> been allocated but not yet installed. It is only really useful as an
> identifier in strings for the VM (such as debugfs).
>
> Treat it exactly as such by passing the string name of the fd to
> kvm_create_vm_debugfs(), futureproofing against possible misuse of the
> VM fd.
One last whine session,
kvm_create_vm_debugfs() to guard against attempts to consume the fd
before it is installed.
> Suggested-by: Sean Christopherson <seanjc@google.com>
> Signed-off-by: Oliver Upton <oupton@google.com>
> ---
Reviewed-by: Sean Christopherson <seanjc@google.com>
next prev parent reply other threads:[~2022-08-05 19:20 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-07-20 9:22 [PATCH v3 0/6] KVM: Clean up debugfs init/destroy Oliver Upton
2022-07-20 9:22 ` [PATCH v3 1/6] KVM: Shove vm stats_id init into kvm_create_vm() Oliver Upton
2022-08-05 19:09 ` Sean Christopherson
2022-07-20 9:22 ` [PATCH v3 2/6] KVM: Shove vcpu stats_id init into kvm_vcpu_init() Oliver Upton
2022-08-05 19:06 ` Sean Christopherson
2022-08-09 14:52 ` Paolo Bonzini
2022-07-20 9:22 ` [PATCH v3 3/6] KVM: Get an fd before creating the VM Oliver Upton
2022-08-05 19:03 ` Sean Christopherson
2022-07-20 9:22 ` [PATCH v3 4/6] KVM: Pass the name of the VM fd to kvm_create_vm_debugfs() Oliver Upton
2022-08-05 19:20 ` Sean Christopherson [this message]
2022-07-20 9:22 ` [PATCH v3 5/6] KVM: Actually create debugfs in kvm_create_vm() Oliver Upton
2022-08-05 19:16 ` Sean Christopherson
2022-07-20 9:22 ` [PATCH v3 6/6] KVM: Hoist debugfs_dentry init to kvm_create_vm_debugfs() (again) Oliver Upton
2022-08-05 19:02 ` Sean Christopherson
2022-08-09 14:56 ` Paolo Bonzini
2022-08-09 19:59 ` Oliver Upton
2022-07-20 9:22 ` [PATCH v3 0/6] KVM: Clean up debugfs init/destroy Oliver Upton
2022-07-20 9:22 ` [PATCH v3 1/6] KVM: Shove vm stats_id init into kvm_create_vm() Oliver Upton
2022-07-20 9:22 ` [PATCH v3 2/6] KVM: Shove vcpu stats_id init into kvm_vcpu_init() Oliver Upton
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