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Re: [Qemu-devel] [PATCH v3 1/4] vl: improve/fix documentation related to


From: Paolo Bonzini
Subject: Re: [Qemu-devel] [PATCH v3 1/4] vl: improve/fix documentation related to RTC function
Date: Thu, 18 Oct 2018 16:36:57 +0200
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:60.0) Gecko/20100101 Thunderbird/60.0

On 18/10/2018 09:12, Artem Pisarenko wrote:
> +To even prevent it from progressing during suspension, you can set it to
> address@hidden (virtual clock). Virtual clock is the clock seen by guest,
> +In icount mode of emulation its (long term) speed will be different from
> +any host clock, when icount configured to non-auto value or virtual cpu 
> sleeping
> +is off, and no synchronization algorithm is active.
>  

Slight rephrasing:

To even prevent the RTC from progressing during suspension, you can set
@option{clock} to @code{vm} (virtual clock). @samp{clock=vm} is
recommended especially in icount mode in order to preserve determinism;
however, note that in icount mode the speed of the virtual clock is
variable and can in general differ from the host clock.

(omitting the reference to -icount auto etc.)
Paolo



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