Re: Re: [RFC] arm/cpu: fix soft lockup panic after resuming from stop

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On 13/03/2019 01:57, Heyi Guo wrote:
> Dear all,
> 
> Really appreciate your comments and information. For "Live Physical
> Time", is there any document to tell the whole story? And may I know the
> timeline to make it happen?

The documentation is available here:
https://developer.arm.com/docs/den0057/a

I also posted an RFC for Linux support last year:
http://lists.infradead.org/pipermail/linux-arm-kernel/2018-December/620338.html

In terms of timeline I don't have anything definite. We need to get the
spec nailed down before much progress can be made on the code. And at
the moment Live Physical Time (LPT) isn't that useful on it's own
because there are a number of other issues with migrating an arm64 guest
from one host to another which has different hardware (e.g. handling
different CPU errata).

Steve
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