On Fri, 2012-07-27 at 15:21 +0100, Russell King - ARM Linux wrote:
> On Fri, Jul 27, 2012 at 02:02:18PM +0100, Stefano Stabellini wrote:
> > > > > +/**
> > > > > + * hypercall.h
> > > > > + *
> > > > > + * Linux-specific hy
On Fri, 2012-07-27 at 14:02 +0100, Stefano Stabellini wrote:
> On Fri, 27 Jul 2012, Ian Campbell wrote:
> > On Thu, 2012-07-26 at 17:33 +0100, Konrad Rzeszutek Wilk wrote:
> > > On Thu, Jul 26, 2012 at 04:33:44PM +0100, Stefano Stabellini wrote:
> > > > Use r12 to pass the hypercall number to the h
On Fri, Jul 27, 2012 at 03:39:31PM +0100, Ian Campbell wrote:
> On Fri, 2012-07-27 at 15:21 +0100, Russell King - ARM Linux wrote:
> > On Fri, Jul 27, 2012 at 02:02:18PM +0100, Stefano Stabellini wrote:
> > > > > > +/**
> >
On Fri, 27 Jul 2012, Russell King - ARM Linux wrote:
> On Fri, Jul 27, 2012 at 02:02:18PM +0100, Stefano Stabellini wrote:
> > > > > +/**
> > > > > + * hypercall.h
> > > > > + *
> > > > > + * Linux-specific hypervisor handl
On Fri, Jul 27, 2012 at 02:02:18PM +0100, Stefano Stabellini wrote:
> > > > +/**
> > > > + * hypercall.h
> > > > + *
> > > > + * Linux-specific hypervisor handling.
> > > > + *
> > > > + * Stefano Stabellini , Citrix, 2012
On Fri, 27 Jul 2012, Ian Campbell wrote:
> > > > Should this comment be by 'privcmd_call'?
> > >
> > > When we add a 5 argument hypercall I suppose we'll see the required
> > > push/pop of r4 added to this macro too.
> >
> > For performance and simplicity I would add a second macro that push/pop
On Fri, 27 Jul 2012, Ian Campbell wrote:
> On Thu, 2012-07-26 at 17:33 +0100, Konrad Rzeszutek Wilk wrote:
> > On Thu, Jul 26, 2012 at 04:33:44PM +0100, Stefano Stabellini wrote:
> > > Use r12 to pass the hypercall number to the hypervisor.
> > >
> > > We need a register to pass the hypercall numb
On 26/07/12 16:33, Stefano Stabellini wrote:
>
> + * The hvc ISS is required to be 0xEA1, that is the Xen specific ARM
> + * hypercall tag.
Is this number, 0xea1, assigned to Xen by some external body?
David
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On Thu, Jul 26, 2012 at 04:33:44PM +0100, Stefano Stabellini wrote:
> Use r12 to pass the hypercall number to the hypervisor.
>
> We need a register to pass the hypercall number because we might not
> know it at compile time and HVC only takes an immediate argument.
>
> Among the available regist
On Thu, 2012-07-26 at 17:33 +0100, Konrad Rzeszutek Wilk wrote:
> On Thu, Jul 26, 2012 at 04:33:44PM +0100, Stefano Stabellini wrote:
> > Use r12 to pass the hypercall number to the hypervisor.
> >
> > We need a register to pass the hypercall number because we might not
> > know it at compile time
On Thu, 2012-07-26 at 17:56 +0100, David Vrabel wrote:
> On 26/07/12 16:33, Stefano Stabellini wrote:
> >
> > + * The hvc ISS is required to be 0xEA1, that is the Xen specific ARM
> > + * hypercall tag.
>
> Is this number, 0xea1, assigned to Xen by some external body?
The value and semantics of
On Thu, 26 Jul 2012, David Vrabel wrote:
> On 26/07/12 16:33, Stefano Stabellini wrote:
> >
> > + * The hvc ISS is required to be 0xEA1, that is the Xen specific ARM
> > + * hypercall tag.
>
> Is this number, 0xea1, assigned to Xen by some external body?
I am not aware of any "external body" tha
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