Re: [Xen-devel] [PATCH] x86: clarify shadow paging Dom0 support

[Roger Pau Monné <roger.pau@xxxxxxxxxx>]

On Mon, Mar 27, 2017 at 12:31:38PM +0100, Wei Liu wrote:
> Classic PV shadow paging Dom0 has been broken for years, and can't
> possibly be configured after 4045953.
> 
> PVH shadow paging Dom0 should still be possible.
> 
> Change the code and documentation to clarify that.
> 
> Signed-off-by: Wei Liu <wei.liu2@xxxxxxxxxx>

Acked-by: Roger Pau Monné <roger.pau@xxxxxxxxxx>

With one minor nit, AFAIK the need_paging check in dom0_compute_nr_pages can be
simplified to:

need_paging = is_hvm_domain(d) && (!iommu_hap_pt_share || !paging_mode_hap(d));

Roger.

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