From: Greg KH <gregkh@linuxfoundation.org>
To: Jing Zhang <jingzhangos@google.com>
Cc: 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 v10 3/5] KVM: stats: Add documentation for binary statistics interface
Date: Thu, 17 Jun 2021 07:52:42 +0200 [thread overview]
Message-ID: <YMrjKhV8TNwmRtf6@kroah.com> (raw)
In-Reply-To: <20210617044146.2667540-4-jingzhangos@google.com>
On Thu, Jun 17, 2021 at 04:41:44AM +0000, Jing Zhang wrote:
> + struct kvm_stats_desc {
> + __u32 flags;
> + __s16 exponent;
> + __u16 size;
> + __u32 offset;
> + __u32 unused;
> + char name[0];
> + };
> +
> +The ``flags`` field contains the type and unit of the statistics data described
> +by this descriptor. The following flags are supported:
> +
> +Bits 0-3 of ``flags`` encode the type:
<snip>
As flags is a bit field, what is the endian of it? Native or LE or BE?
I'm guessing "cpu native", but you should be explicit as userspace will
have to deal with this somehow.
thanks,
greg k-h
next prev parent reply other threads:[~2021-06-17 5:52 UTC|newest]
Thread overview: 29+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-06-17 4:41 [PATCH v10 0/5] KVM statistics data fd-based binary interface Jing Zhang
2021-06-17 4:41 ` [PATCH v10 1/5] KVM: stats: Separate generic stats from architecture specific ones Jing Zhang
2021-06-17 4:41 ` [PATCH v10 2/5] KVM: stats: Add fd-based API to read binary stats data Jing Zhang
2021-06-17 7:03 ` Greg KH
2021-06-17 11:23 ` Paolo Bonzini
2021-06-17 14:48 ` Jing Zhang
2021-06-17 7:24 ` Greg KH
2021-06-17 11:27 ` Paolo Bonzini
2021-06-17 14:56 ` Jing Zhang
2021-06-17 15:29 ` Paolo Bonzini
2021-06-17 15:42 ` Jing Zhang
2021-06-17 4:41 ` [PATCH v10 3/5] KVM: stats: Add documentation for binary statistics interface Jing Zhang
2021-06-17 5:52 ` Greg KH [this message]
2021-06-17 15:09 ` Jing Zhang
2021-06-17 5:56 ` Greg KH
2021-06-17 11:29 ` Paolo Bonzini
2021-06-17 11:42 ` Greg KH
2021-06-17 11:46 ` Paolo Bonzini
2021-06-17 15:45 ` Jing Zhang
2021-06-17 15:20 ` Jing Zhang
2021-06-17 22:15 ` Jing Zhang
2021-06-17 6:05 ` Greg KH
2021-06-17 15:41 ` Jing Zhang
2021-06-17 6:07 ` Greg KH
2021-06-17 11:19 ` Paolo Bonzini
2021-06-17 11:34 ` Greg KH
2021-06-17 15:51 ` Jing Zhang
2021-06-17 4:41 ` [PATCH v10 4/5] KVM: selftests: Add selftest for KVM statistics data binary interface Jing Zhang
2021-06-17 4:41 ` [PATCH v10 5/5] KVM: stats: Remove code duplication for binary and debugfs stats Jing Zhang
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