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Re: [Qemu-arm] [Qemu-devel] [PATCH for 4.1] aspeed/timer: Provide back-p

From: Philippe Mathieu-Daudé
Subject: Re: [Qemu-arm] [Qemu-devel] [PATCH for 4.1] aspeed/timer: Provide back-pressure information for short periods
Date: Tue, 16 Jul 2019 09:02:19 +0200
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:60.0) Gecko/20100101 Thunderbird/60.7.0

On 7/16/19 9:00 AM, Joel Stanley wrote:
> On Tue, 16 Jul 2019 at 06:54, Joel Stanley <address@hidden> wrote:
>> Hi Peter,
>> On Thu, 4 Jul 2019 at 12:26, Paolo Bonzini <address@hidden> wrote:
>>> On 04/07/19 12:13, Stefan Hajnoczi wrote:
>>>> On Thu, Jul 04, 2019 at 11:26:53AM +0200, Philippe Mathieu-Daudé wrote:
>>>>> CC'ing Stefan & Paolo for a non-ARM view on this...
>>>> I'm not familiar with the various clock smoothing techniques implemented
>>>> in QEMU and KVM, but this looks okay given that Linux guests expect
>>>> this.
>>> Yeah, even KVM applies a minimum period of 200us to the x86 LAPIC timer.
>> Can we please merge this so guests can boot on 4.1?
> Cédric pointed out this lacks my reviewed by. I had not provided it in
> the past as I wondered if we could come up with a better fix. However,
> I consider this a good fix for 4.1, and if sometime finds time to
> further rework the timer model in the future then we can do that work
> later.


> Reviewed-by: Joel Stanley <address@hidden>
> Tested-by: Joel Stanley <address@hidden>

Reviewed-by: Philippe Mathieu-Daudé <address@hidden>

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