Re: [Xen-devel] [PATCH v2 03/10] xen: extend XEN_DOMCTL_memory_mapping to handle memory policy

[Stefano Stabellini <sstabellini@xxxxxxxxxx>]

On Thu, 2 May 2019, Jan Beulich wrote:
> >>> On 30.04.19 at 23:02, <sstabellini@xxxxxxxxxx> wrote:
> > --- a/xen/include/public/domctl.h
> > +++ b/xen/include/public/domctl.h
> > @@ -571,12 +571,24 @@ struct xen_domctl_bind_pt_irq {
> >  */
> >  #define DPCI_ADD_MAPPING         1
> >  #define DPCI_REMOVE_MAPPING      0
> > +/*
> > + * Default memory policy. Corresponds to:
> > + * Arm: MEMORY_POLICY_ARM_DEV_nGRE
> > + * x86: MEMORY_POLICY_X86_UC
> > + */
> > +#define MEMORY_POLICY_DEFAULT    0
> > +/* x86 only. Memory type UNCACHABLE */
> > +#define MEMORY_POLICY_X86_UC     0
> 
> I'm afraid this may end up misleading, as on NPT and in
> shadow mode we use UC- instead of UC afaics. Andrew,
> do you have an opinion either way what exactly should
> be stated here?

Ping?

I am happy to use any naming scheme you prefer, please provide input.

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