On 20/12/2018 13:15, Pu Wen wrote:
> The Hygon Dhyana CPU don't save/restore FDP/FIP/FOP unless an exception
> is pending. So add support for it in the function xrstor.

Really?

Zen was the first AMD processor to fix this (mis)feature, and the Xen
code doesn't appear to have caught up yet.

I'm putting together a series trying to fix this, and several other
similar issues.

~Andrew

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