RE: RFC: proposal for VM reset hcall

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> -----Original Message-----
> From: Wood Scott-B07421
> Sent: Monday, July 01, 2013 12:32 PM
> To: Yoder Stuart-B08248
> Cc: Wood Scott-B07421; Alexander Graf; Bhushan Bharat-R65777; kvm@xxxxxxxxxxxxxxx
> Subject: Re: RFC: proposal for VM reset hcall
> 
> On 07/01/2013 12:28:34 PM, Yoder Stuart-B08248 wrote:
> >
> >
> > > -----Original Message-----
> > > From: Wood Scott-B07421
> > > Sent: Monday, July 01, 2013 11:49 AM
> > > To: Yoder Stuart-B08248
> > > Cc: Alexander Graf; Wood Scott-B07421; Bhushan Bharat-R65777;
> > kvm@xxxxxxxxxxxxxxx
> > > Subject: Re: RFC: proposal for VM reset hcall
> > >
> > > On 07/01/2013 10:56:54 AM, Yoder Stuart-B08248 wrote:
> > > > For the e500 PV platform we need a VM reset mechanisms.
> > > >
> > > > Hypercall: KVM_HC_VM_RESET
> > > > Description:  Requests that the virtual machine be reset.  The
> > > >               hcall takes no arguments. If successful the hcall
> > does
> > > > not
> > > >               return.
> > > >
> > > > Arguments:
> > > >      r11    hcall-token   KVM_HC_VM_RESET
> > > >
> > > > Return values
> > > >      r3     status        Status of the hcall.  If the hcall
> > succeeds
> > > >                           it does not return.  If an error occurs
> > > >                           EV_INTERNAL is returned.
> > > >
> > > >
> > > > Implementation notes:
> > > >
> > > >    -expect hcall token to be defined with
> > > > KVM_HCALL_TOKEN(KVM_HC_VM_RESET)
> > > >
> > > >    -the KVM_HC_FEATURES hcall should be expanded with a new
> > feature
> > > > bit
> > > >     to advertise the reset hcall to the VM:  #define
> > > > KVM_FEATURE_VM_RESET
> > >
> > > What about shutdown rather than reset?
> >
> > 'Shutdown' means something completely to me than 'reset',
> > and doesn't imply a reboot or reset.   I think the name
> > should be reset/restart/reboot.
> 
> My point is that Alex talked about wanting both reboot and shutdown
> support.  I wasn't suggesting a name change.

Ok, let's get Alex's input as to what shutdown support would
look like.  Not sure what a 'shutdown' hcall would do.

Stuart

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