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From: Avi Kivity <avi@redhat.com>
To: Jan Kiszka <jan.kiszka@web.de>
Cc: Beth Kon <eak@us.ibm.com>, kvm@vger.kernel.org
Subject: Re: [PATCH 2/2][RFC] Kernel changes for HPET legacy mode (v7)
Date: Mon, 22 Jun 2009 12:24:41 +0300	[thread overview]
Message-ID: <4A3F4DD9.5050902@redhat.com> (raw)
In-Reply-To: <4A3F4B6E.2050301@web.de>

On 06/22/2009 12:14 PM, Jan Kiszka wrote:
>>> Hmm, stead of introducing a new pair of singe-purpose IOCTLs, why not
>>> add KVM_GET/SET_PIT2 which exchanges an extended kvm_pit_state2. And
>>> that struct should also include some flags field and enough padding to
>>> be potentially extended yet again in the future. In that case I see no
>>> problem having also a mode read-back interface.
>>>
>>>        
>> We'd only add kernel hpet if we were forced to (I imagine the same
>> applications/kernels that forced the PIT into the kernel will do the
>> same for HPET).
>>
>>      
>
> Answer and citation does not yet correlate for me.
>    

Misquote.  I meant to reply to your 'Is it planned to add in-kernel hpet 
support?' question.  Must be early in the morning in some timezone.

> Could you comment more explicitly if your are fine with Beth's proposed
> interface, rather prefer something like my suggestion or even want
> something totally different?
>    

GET/SET PIT2 looks like the best choice to me, at least until I find 
whoever designed the HPET/PIT interdependency and make him take it back.

-- 
error compiling committee.c: too many arguments to function


  reply	other threads:[~2009-06-22  9:23 UTC|newest]

Thread overview: 11+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2009-06-18 12:47 [PATCH 0/2][RFC] Completing HPET in KVM (v7) Beth Kon
2009-06-18 12:47 ` [PATCH 1/2][RFC] Userspace changes for KVM HPET (v7) Beth Kon
2009-06-18 12:47 ` [PATCH 2/2][RFC] Kernel changes for HPET legacy mode (v7) Beth Kon
2009-06-18 19:04   ` Jan Kiszka
2009-06-19 13:54     ` Beth Kon
2009-06-22  8:56     ` Avi Kivity
2009-06-22  9:14       ` Jan Kiszka
2009-06-22  9:24         ` Avi Kivity [this message]
2009-06-23  0:09           ` Beth Kon
2009-06-23 11:04             ` Jan Kiszka
2009-06-22  8:56 ` [PATCH 0/2][RFC] Completing HPET in KVM (v7) Avi Kivity

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