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Re: [Xen-ia64-devel] [Discussion]: dynamic shared_info_va

To: "Magenheimer, Dan (HP Labs Fort Collins)" <dan.magenheimer@xxxxxx>, <xen-ia64-devel@xxxxxxxxxxxxxxxxxxx>
Subject: Re: [Xen-ia64-devel] [Discussion]: dynamic shared_info_va
From: Tristan Gingold <Tristan.Gingold@xxxxxxxx>
Date: Tue, 9 May 2006 15:45:42 +0200
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Le Mardi 09 Mai 2006 15:38, Magenheimer, Dan (HP Labs Fort Collins) a écrit :
> > > Or specify an architected value and provide a hypercall
> > > that allows a guest to change it to a different value if
> > > it wishes.
> >
> > Do you have any usage model for changing hypercall imm value ?
> > I can't imagine a reason.  Changing hypercall imm value is
> > not easy: it is
> > almost hard-coded into the code, it is also used in
> > pal/sal/efi stubs and is
> > a domain-wide value.
>
> The problem only occurs if a future version of Linux or
> a future non-Linux guest chooses to use the hypercall
> break imm value for some other use.
Yes.
I thought you meant dynamically (ie during execution) changing break imm 
value.

Tristan.

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