Hi Will, > On 10 Jun 2020, at 08:43, Will Deacon <will@xxxxxxxxxx> wrote: > > On Tue, Jun 09, 2020 at 04:35:51PM -0600, Rob Herring wrote: >> On Mon, Jun 01, 2020 at 10:45:10AM +0100, Sudeep Holla wrote: >>> Add devicetree bindings for a Arm PSA FF-A compliant non-secure partition >>> at virtual interface(VMs). >>> >>> Signed-off-by: Sudeep Holla <sudeep.holla@xxxxxxx> >>> --- >>> .../devicetree/bindings/arm/arm,psa-ffa.txt | 47 +++++++++++++++++++ >>> 1 file changed, 47 insertions(+) >>> create mode 100644 Documentation/devicetree/bindings/arm/arm,psa-ffa.txt >> >> I'm hoping this goes away if the firmware is discoverable, but if not DT >> bindings are DT schema now. > > We'll need the binding for the kvm host side, because there are plenty > of partition properties that are not discoverable (e.g. number of vCPUs). Just trying to understand the req. a bit better… The FF-A driver in the host can use FFA_PARTITION_INFO_GET to determine the count of partitions and their vCPUs. Is this about a guest being able to find out how many vCPUs it has? Cheers, Achin > > I'll have a go a yamlifying what I have... > > Will >
