From: Greg KH <gregkh@linuxfoundation.org>
To: "Enrico Weigelt, metux IT consult" <lkml@metux.net>
Cc: Jing Zhang <jingzhangos@google.com>, KVM <kvm@vger.kernel.org>,
KVMARM <kvmarm@lists.cs.columbia.edu>,
LinuxMIPS <linux-mips@vger.kernel.org>,
KVMPPC <kvm-ppc@vger.kernel.org>,
LinuxS390 <linux-s390@vger.kernel.org>,
Linuxkselftest <linux-kselftest@vger.kernel.org>,
Paolo Bonzini <pbonzini@redhat.com>,
Marc Zyngier <maz@kernel.org>, James Morse <james.morse@arm.com>,
Julien Thierry <julien.thierry.kdev@gmail.com>,
Suzuki K Poulose <suzuki.poulose@arm.com>,
Will Deacon <will@kernel.org>,
Huacai Chen <chenhuacai@kernel.org>,
Aleksandar Markovic <aleksandar.qemu.devel@gmail.com>,
Thomas Bogendoerfer <tsbogend@alpha.franken.de>,
Paul Mackerras <paulus@ozlabs.org>,
Christian Borntraeger <borntraeger@de.ibm.com>,
Janosch Frank <frankja@linux.ibm.com>,
David Hildenbrand <david@redhat.com>,
Cornelia Huck <cohuck@redhat.com>,
Claudio Imbrenda <imbrenda@linux.ibm.com>,
Sean Christopherson <seanjc@google.com>,
Vitaly Kuznetsov <vkuznets@redhat.com>,
Jim Mattson <jmattson@google.com>,
Peter Shier <pshier@google.com>, Oliver Upton <oupton@google.com>,
David Rientjes <rientjes@google.com>,
Emanuele Giuseppe Esposito <eesposit@redhat.com>,
David Matlack <dmatlack@google.com>,
Ricardo Koller <ricarkol@google.com>,
Krish Sadhukhan <krish.sadhukhan@oracle.com>,
Fuad Tabba <tabba@google.com>
Subject: Re: [PATCH v9 0/5] KVM statistics data fd-based binary interface
Date: Tue, 15 Jun 2021 11:21:38 +0200 [thread overview]
Message-ID: <YMhxIiciyzPchF/2@kroah.com> (raw)
In-Reply-To: <b86aa6df-5fd7-d705-1688-4d325df6f7d9@metux.net>
On Tue, Jun 15, 2021 at 10:37:36AM +0200, Enrico Weigelt, metux IT consult wrote:
> Why not putting this into sysfs ?
Because sysfs is "one value per file".
> I see two options:
>
> a) if it's really kvm-specific (and no chance of using the same
> interface for other hypervisors), we could put it under the
> kvm device (/sys/class/misc/kvm).
Again, that is NOT what sysfs is for.
> b) have a generic VMM stats interface that theroretically could work
> with any hypervisor.
What other hypervisor matters?
greg k-h
WARNING: multiple messages have this Message-ID (diff)
From: Greg KH <gregkh@linuxfoundation.org>
To: "Enrico Weigelt, metux IT consult" <lkml@metux.net>
Cc: KVM <kvm@vger.kernel.org>, David Hildenbrand <david@redhat.com>,
Paul Mackerras <paulus@ozlabs.org>,
Linuxkselftest <linux-kselftest@vger.kernel.org>,
Claudio Imbrenda <imbrenda@linux.ibm.com>,
Will Deacon <will@kernel.org>,
KVMARM <kvmarm@lists.cs.columbia.edu>,
Emanuele Giuseppe Esposito <eesposit@redhat.com>,
LinuxS390 <linux-s390@vger.kernel.org>,
Janosch Frank <frankja@linux.ibm.com>,
Marc Zyngier <maz@kernel.org>,
Huacai Chen <chenhuacai@kernel.org>,
Christian Borntraeger <borntraeger@de.ibm.com>,
Aleksandar Markovic <aleksandar.qemu.devel@gmail.com>,
David Rientjes <rientjes@google.com>,
KVMPPC <kvm-ppc@vger.kernel.org>,
Krish Sadhukhan <krish.sadhukhan@oracle.com>,
David Matlack <dmatlack@google.com>,
Jim Mattson <jmattson@google.com>,
Thomas Bogendoerfer <tsbogend@alpha.franken.de>,
Sean Christopherson <seanjc@google.com>,
Cornelia Huck <cohuck@redhat.com>,
Peter Shier <pshier@google.com>,
LinuxMIPS <linux-mips@vger.kernel.org>,
Paolo Bonzini <pbonzini@redhat.com>,
Vitaly Kuznetsov <vkuznets@redhat.com>
Subject: Re: [PATCH v9 0/5] KVM statistics data fd-based binary interface
Date: Tue, 15 Jun 2021 11:21:38 +0200 [thread overview]
Message-ID: <YMhxIiciyzPchF/2@kroah.com> (raw)
In-Reply-To: <b86aa6df-5fd7-d705-1688-4d325df6f7d9@metux.net>
On Tue, Jun 15, 2021 at 10:37:36AM +0200, Enrico Weigelt, metux IT consult wrote:
> Why not putting this into sysfs ?
Because sysfs is "one value per file".
> I see two options:
>
> a) if it's really kvm-specific (and no chance of using the same
> interface for other hypervisors), we could put it under the
> kvm device (/sys/class/misc/kvm).
Again, that is NOT what sysfs is for.
> b) have a generic VMM stats interface that theroretically could work
> with any hypervisor.
What other hypervisor matters?
greg k-h
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kvmarm@lists.cs.columbia.edu
https://lists.cs.columbia.edu/mailman/listinfo/kvmarm
WARNING: multiple messages have this Message-ID (diff)
From: Greg KH <gregkh@linuxfoundation.org>
To: "Enrico Weigelt, metux IT consult" <lkml@metux.net>
Cc: Jing Zhang <jingzhangos@google.com>, KVM <kvm@vger.kernel.org>,
KVMARM <kvmarm@lists.cs.columbia.edu>,
LinuxMIPS <linux-mips@vger.kernel.org>,
KVMPPC <kvm-ppc@vger.kernel.org>,
LinuxS390 <linux-s390@vger.kernel.org>,
Linuxkselftest <linux-kselftest@vger.kernel.org>,
Paolo Bonzini <pbonzini@redhat.com>,
Marc Zyngier <maz@kernel.org>, James Morse <james.morse@arm.com>,
Julien Thierry <julien.thierry.kdev@gmail.com>,
Suzuki K Poulose <suzuki.poulose@arm.com>,
Will Deacon <will@kernel.org>,
Huacai Chen <chenhuacai@kernel.org>,
Aleksandar Markovic <aleksandar.qemu.devel@gmail.com>,
Thomas Bogendoerfer <tsbogend@alpha.franken.de>,
Paul Mackerras <paulus@ozlabs.org>,
Christian Borntraeger <borntraeger@de.ibm.com>,
Janosch Frank <frankja@linux.ibm.com>,
David Hildenbrand <david@redhat.com>,
Cornelia Huck <cohuck@redhat.com>,
Claudio Imbrenda <imbrenda@linux.ibm.com>,
Sean Christopherson <seanjc@google.com>,
Vitaly Kuznetsov <vkuznets@redhat.com>,
Jim Mattson <jmattson@google.com>,
Peter Shier <pshier@google.com>, Oliver Upton <oupton@google.com>,
David Rientjes <rientjes@google.com>,
Emanuele Giuseppe Esposito <eesposit@redhat.com>,
David Matlack <dmatlack@google.com>,
Ricardo Koller <ricarkol@google.com>,
Krish Sadhukhan <krish.sadhukhan@oracle.com>,
Fuad Tabba <tabba@google.com>
Subject: Re: [PATCH v9 0/5] KVM statistics data fd-based binary interface
Date: Tue, 15 Jun 2021 09:21:38 +0000 [thread overview]
Message-ID: <YMhxIiciyzPchF/2@kroah.com> (raw)
In-Reply-To: <b86aa6df-5fd7-d705-1688-4d325df6f7d9@metux.net>
On Tue, Jun 15, 2021 at 10:37:36AM +0200, Enrico Weigelt, metux IT consult wrote:
> Why not putting this into sysfs ?
Because sysfs is "one value per file".
> I see two options:
>
> a) if it's really kvm-specific (and no chance of using the same
> interface for other hypervisors), we could put it under the
> kvm device (/sys/class/misc/kvm).
Again, that is NOT what sysfs is for.
> b) have a generic VMM stats interface that theroretically could work
> with any hypervisor.
What other hypervisor matters?
greg k-h
next prev parent reply other threads:[~2021-06-15 9:21 UTC|newest]
Thread overview: 65+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-06-14 21:21 [PATCH v9 0/5] KVM statistics data fd-based binary interface Jing Zhang
2021-06-14 21:21 ` Jing Zhang
2021-06-14 21:21 ` [PATCH v9 1/5] KVM: stats: Separate generic stats from architecture specific ones Jing Zhang
2021-06-14 21:21 ` Jing Zhang
2021-06-14 21:21 ` Jing Zhang
2021-06-14 21:21 ` [PATCH v9 2/5] KVM: stats: Add fd-based API to read binary stats data Jing Zhang
2021-06-14 21:21 ` Jing Zhang
2021-06-14 21:21 ` Jing Zhang
2021-06-16 17:12 ` Paolo Bonzini
2021-06-16 17:12 ` Paolo Bonzini
2021-06-16 17:12 ` Paolo Bonzini
2021-06-16 18:04 ` Jing Zhang
2021-06-16 18:04 ` Jing Zhang
2021-06-16 18:04 ` Jing Zhang
2021-06-14 21:21 ` [PATCH v9 3/5] KVM: stats: Add documentation for statistics data binary interface Jing Zhang
2021-06-14 21:21 ` Jing Zhang
2021-06-14 21:21 ` Jing Zhang
2021-06-16 15:21 ` Greg KH
2021-06-16 15:21 ` Greg KH
2021-06-16 15:21 ` Greg KH
2021-06-16 16:59 ` Paolo Bonzini
2021-06-16 16:59 ` Paolo Bonzini
2021-06-16 16:59 ` Paolo Bonzini
2021-06-16 18:18 ` Greg KH
2021-06-16 18:18 ` Greg KH
2021-06-16 18:18 ` Greg KH
2021-06-16 19:45 ` Paolo Bonzini
2021-06-16 19:45 ` Paolo Bonzini
2021-06-16 19:45 ` Paolo Bonzini
2021-06-14 21:21 ` [PATCH v9 4/5] KVM: selftests: Add selftest for KVM " Jing Zhang
2021-06-14 21:21 ` Jing Zhang
2021-06-14 21:21 ` Jing Zhang
2021-06-15 8:03 ` Fuad Tabba
2021-06-15 8:03 ` Fuad Tabba
2021-06-15 8:03 ` Fuad Tabba
2021-06-16 21:35 ` Jing Zhang
2021-06-16 21:35 ` Jing Zhang
2021-06-16 21:35 ` Jing Zhang
2021-06-14 21:21 ` [PATCH v9 5/5] KVM: stats: Remove code duplication for binary and debugfs stats Jing Zhang
2021-06-14 21:21 ` Jing Zhang
2021-06-14 21:21 ` Jing Zhang
2021-06-15 5:25 ` [PATCH v9 0/5] KVM statistics data fd-based binary interface Leon Romanovsky
2021-06-15 5:25 ` Leon Romanovsky
2021-06-15 5:25 ` Leon Romanovsky
2021-06-15 7:06 ` Paolo Bonzini
2021-06-15 7:06 ` Paolo Bonzini
2021-06-15 7:06 ` Paolo Bonzini
2021-06-15 7:53 ` Leon Romanovsky
2021-06-15 7:53 ` Leon Romanovsky
2021-06-15 7:53 ` Leon Romanovsky
2021-06-15 11:03 ` Paolo Bonzini
2021-06-15 11:03 ` Paolo Bonzini
2021-06-15 11:03 ` Paolo Bonzini
2021-06-15 13:34 ` Leon Romanovsky
2021-06-15 13:34 ` Leon Romanovsky
2021-06-15 13:34 ` Leon Romanovsky
2021-06-15 8:37 ` Enrico Weigelt, metux IT consult
2021-06-15 8:37 ` Enrico Weigelt, metux IT consult
2021-06-15 8:37 ` Enrico Weigelt, metux IT consult
2021-06-15 9:21 ` Greg KH [this message]
2021-06-15 9:21 ` Greg KH
2021-06-15 9:21 ` Greg KH
2021-06-15 11:31 ` Paolo Bonzini
2021-06-15 11:31 ` Paolo Bonzini
2021-06-15 11:31 ` Paolo Bonzini
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