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RE: [Xen-devel] [PATCH] Move RTC from Qemu to HV

To: "Keir Fraser" <Keir.Fraser@xxxxxxxxxxxx>, "Li, Xin B" <xin.b.li@xxxxxxxxx>, "Yang, Xiaowei" <xiaowei.yang@xxxxxxxxx>
Subject: RE: [Xen-devel] [PATCH] Move RTC from Qemu to HV
From: "Dong, Eddie" <eddie.dong@xxxxxxxxx>
Date: Fri, 29 Sep 2006 15:27:36 +0800
Cc: "Mallick, Asit K" <asit.k.mallick@xxxxxxxxx>, xen-devel@xxxxxxxxxxxxxxxxxxx, "Nakajima, Jun" <jun.nakajima@xxxxxxxxx>
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Thread-topic: [Xen-devel] [PATCH] Move RTC from Qemu to HV
Keir Fraser wrote:
> On 29/9/06 6:43 am, "Li, Xin B" <xin.b.li@xxxxxxxxx> wrote:
>> Keir, how about using the attached patch as workaround for xen 3.0.3.
>> With it 64 bit win2003 UP and SMP can work fine, 64bit SMP can go
>> hct stress for 20 hours. 
>> Signed-off-by: Xin Li <xin.b.li@xxxxxxxxx>
>> Signed-off-by: Eddie Dong <eddie.dong@xxxxxxxxx>
> Rotfl. No. HVM guests would sleep no longer than 16us!
> We'll get the proper patch in asap.
>  -- Keir
        The proper patch is either to move RTC into hypervisor or modify
DM IRQ injection mechanism. I'd prefer to take the prior solution while
your concern is righ too as we are in RC1 now and want this size of
patch. For the later one, the change is much tricky and it may introduce
some regression issue and big imapct to other architecture like IA-64.
        So, what is your tradeoff now? We must fix this kind of bug,

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