Re: [Xen-devel] [PATCH v1 5/6] libxl: create DTS node for OP-TEE if it is enabled

[Volodymyr Babchuk <volodymyr_babchuk@xxxxxxxx>]

Hi,

On 22.08.18 20:32, Julien Grall wrote:
> Hi,
>
> On 22/08/18 15:11, Volodymyr Babchuk wrote:
> > Signed-off-by: Volodymyr Babchuk <volodymyr_babchuk@xxxxxxxx>
> I am a bit confused. The DT is only here to tell the guest OP-TEE is 
> present. But I don't see anything to tell the hypervisor the guest will 
> use OP-TEE.
Yes, this is what I wanted to discuss. I had a felling that it is not 
quite right. I think your idea with DOMCTL is better. I'll rework this 
part in the  following way:
if there is "optee=1" in a config file, then libxl will create DT entry 
and ask hypervisor to enable access to TEE for this domain.
--
Volodymyr Babchuk

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