Re: [Xen-devel] [PATCH RFC 00/55] x86: use domheap page for xen page tables

["Nuernberger, Stefan" <snu@xxxxxxxxx>]

On Thu, 2019-02-07 at 16:44 +0000, Wei Liu wrote:
> This series switches xen page tables from xenheap page to domheap
> page.
> 
> This is required so that when we implement xenheap on top of vmap
> there won't
> be a loop.
> 
> It is done in roughly three steps:
> 
> 1. Introduce a new set of APIs, implement the old APIs on top of the
> new ones.
>    New APIs still use xenheap pages.
> 2. Switch each site which manipulate page tables to use the new APIs.
> 3. Switch new APIs to use domheap page.
> 
> You can find the series at:
> 
>   https://xenbits.xen.org/git-http/people/liuw/xen.git xen-pt-
> allocation-1
> 
> Wei.

Tested-by: Stefan Nuernberger <snu@xxxxxxxxx>

I backported the latest series to an internal version based on the
4.11.1 release.

I gave it a good spin on a variety of hardware generations. It's stable
with no regressions found. I did not do any performance measurements,
though. I did not test PV guests, only HVM domU with PV dom0.

- Stefan



Amazon Development Center Germany GmbH
Krausenstr. 38
10117 Berlin
Geschaeftsfuehrer: Christian Schlaeger, Ralf Herbrich
Ust-ID: DE 289 237 879
Eingetragen am Amtsgericht Charlottenburg HRB 149173 B

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