From mboxrd@z Thu Jan  1 00:00:00 1970
From: Segher Boessenkool <segher@kernel.crashing.org>
Date: Tue, 31 May 2011 22:34:43 +0000
Subject: Re: [PATCH 10/13] kvm/powerpc: Add support for Book3S processors in hypervisor mode
Message-Id: <c71b71560e43813012b6f293230dc78e@kernel.crashing.org>
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References: <20110511103443.GA2837@brick.ozlabs.ibm.com> <20110511104456.GK2837@brick.ozlabs.ibm.com> <BDD550B2-02CA-4B1A-A05B-6CB3EF89B7B3@suse.de> <20110516055809.GA3590@drongo> <D8CAE971-9A97-4C02-8908-2B199C81947A@suse.de> <20110527103334.GA4236@brick.ozlabs.ibm.com> <b833d9df4fc8e1e6a8b6a56311c6f344@kernel.crashing.org> <6A1CA2C8-8032-4D67-9C14-4ABD81ABCDD7@suse.de> <10cc079a31947ec4b6d39f30f2ac50f2@kernel.crashing.org> <A052DEF7-7DA0-4573-89EC-0A685ED4B498@pobox.com>
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To: Jimi Xenidis <jimix@pobox.com>
Cc: Paul Mackerras <paulus@samba.org>, KVM list <kvm@vger.kernel.org>, Alexander Graf <agraf@suse.de>, Linuxppc-dev <linuxppc-dev@ozlabs.org>, kvm-ppc@vger.kernel.org

>>> Sure, but that shouldn't happen with HDEC during the odd 50 
>>> instructions that it takes to enter the guest :)
>>
>> It's more like 500 insns, including some ptesync, so lots of cycles 
>> too.
>
> I don't think its actually that bad.

There's a loop of 128 iterations of 3 insns.

I'm not saying it is actually bad, just that that 50 is slightly off ;-)


Segher