Re: [PATCH v2 14/22] target/arm/kvm-rme: Add Realm Personalization Value parameter

["Daniel P. Berrangé" <berrange@redhat.com>]

On Tue, Apr 23, 2024 at 01:20:20PM +0100, Peter Maydell wrote:
> On Fri, 19 Apr 2024 at 16:59, Jean-Philippe Brucker
> <jean-philippe@linaro.org> wrote:
> >
> > The Realm Personalization Value (RPV) is provided by the user to
> > distinguish Realms that have the same initial measurement.
> >
> > The user provides up to 64 hexadecimal bytes. They are stored into the
> > RPV in the same order, zero-padded on the right.
> >
> > Cc: Eric Blake <eblake@redhat.com>
> > Cc: Markus Armbruster <armbru@redhat.com>
> > Cc: Daniel P. Berrangé <berrange@redhat.com>
> > Cc: Eduardo Habkost <eduardo@habkost.net>
> > Signed-off-by: Jean-Philippe Brucker <jean-philippe@linaro.org>
> > ---
> > v1->v2: Move parsing early, store as-is rather than reverted
> > ---
> >  qapi/qom.json        |  15 +++++-
> >  target/arm/kvm-rme.c | 111 +++++++++++++++++++++++++++++++++++++++++++
> >  2 files changed, 125 insertions(+), 1 deletion(-)
> >
> > diff --git a/qapi/qom.json b/qapi/qom.json
> > index 623ec8071f..91654aa267 100644
> > --- a/qapi/qom.json
> > +++ b/qapi/qom.json
> > @@ -931,6 +931,18 @@
> >    'data': { '*cpu-affinity': ['uint16'],
> >              '*node-affinity': ['uint16'] } }
> >
> > +##
> > +# @RmeGuestProperties:
> > +#
> > +# Properties for rme-guest objects.
> > +#
> > +# @personalization-value: Realm personalization value, as a 64-byte hex string
> > +#     (default: 0)
> > +#
> > +# Since: FIXME
> > +##
> > +{ 'struct': 'RmeGuestProperties',
> > +  'data': { '*personalization-value': 'str' } }
> >
> >  ##
> >  # @ObjectType:
> > @@ -1066,7 +1078,8 @@
> >        'tls-creds-x509':             'TlsCredsX509Properties',
> >        'tls-cipher-suites':          'TlsCredsProperties',
> >        'x-remote-object':            'RemoteObjectProperties',
> > -      'x-vfio-user-server':         'VfioUserServerProperties'
> > +      'x-vfio-user-server':         'VfioUserServerProperties',
> > +      'rme-guest':                  'RmeGuestProperties'
> >    } }
> 
> This list is in alphabetical order. Are we obliged to add new
> items to the end for some compatibility reason, or should this new
> item be filed in its correct place with the other 'r's ?

Ordering has no bearing on compatibility, so this should be at the
correct alphbetical position.

With regards,
Daniel
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