From: Christian Borntraeger <borntraeger@de.ibm.com>
To: Avi Kivity <avi@redhat.com>
Cc: Carsten Otte <cotte@de.ibm.com>,
Marcelo Tossati <mtosatti@redhat.com>,
Heiko Carstens <heiko.carstens@de.ibm.com>,
Martin Schwidefsky <schwidefsky@de.ibm.com>,
Cornelia Huck <cornelia.huck@de.ibm.com>,
KVM <kvm@vger.kernel.org>
Subject: Re: [patch 2/2] [PATCH] kvm-s390: pseudo page fault support
Date: Thu, 17 Nov 2011 16:13:25 +0100 [thread overview]
Message-ID: <4EC52495.3090207@de.ibm.com> (raw)
In-Reply-To: <4EC5098B.70101@redhat.com>
>> + VCPU_EVENT(vcpu, 5, "synchronous page fault at guest %lx user %lx",
>> + current->thread.gmap_addr, uaddr);
>> +
>> + fault_in_pages_readable((char __user *)uaddr, PAGE_SIZE);
>> +}
>
> These may make sense as tracepoints (this is what x86 does). The
> kvm_stat script knows how to pick them up and generate an event
> histogram dynamically, along with all the other goodies tracepoints bring.
Coverting these to trace points is on my todo list.
prev parent reply other threads:[~2011-11-17 15:13 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-11-17 11:19 [patch 0/2] kvm-s390: asnychronous page faults Carsten Otte
2011-11-17 11:19 ` [patch 1/2] [PATCH] kvm: nowait retry for asynchronous " Carsten Otte
2011-11-17 11:19 ` [patch 2/2] [PATCH] kvm-s390: pseudo page fault support Carsten Otte
2011-11-17 13:18 ` Avi Kivity
2011-11-17 13:38 ` Carsten Otte
2011-11-17 14:18 ` Avi Kivity
2011-11-17 14:50 ` Carsten Otte
2011-11-17 15:13 ` Christian Borntraeger [this message]
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