On 12/6/17 4:31 PM, Julien Grall wrote:
Hi Stuart,
On 12/05/2017 03:36 PM, Stuart Yoder wrote:
There are limit on pCPUs, though. But this is not a problem, because
XEN scheduler will decide which guest will access OP-TEE right now.
OP-TEE don't have own scheduler at all, by the way. It is s
Hi,
Answering to myself.
On 12/04/2017 02:30 PM, Julien Grall wrote:
On 01/12/17 22:58, Stefano Stabellini wrote:
On Mon, 27 Nov 2017, Volodymyr Babchuk wrote:
= Xen command forwarding =
In the code below, it looks like Xen is forwarding everything to OP-TEE.
Are there some commands Xen shoul
Hi Stuart,
On 12/05/2017 03:36 PM, Stuart Yoder wrote:
There are limit on pCPUs, though. But this is not a problem, because
XEN scheduler will decide which guest will access OP-TEE right now.
OP-TEE don't have own scheduler at all, by the way. It is scheduled
by normal world.
Do you mind to
There are limit on pCPUs, though. But this is not a problem, because
XEN scheduler will decide which guest will access OP-TEE right now.
OP-TEE don't have own scheduler at all, by the way. It is scheduled
by normal world.
Do you mind to give a bit more explanation here? Do you plan to add know
Hi Stefano,
On 05.12.17 00:06, Stefano Stabellini wrote:
On Mon, 4 Dec 2017, Volodymyr Babchuk wrote:
= Xen command forwarding =
In the code below, it looks like Xen is forwarding everything to OP-TEE.
Are there some commands Xen should avoid forwarding? Should we have a
whitelist or a blackl
Hi,
On 04/12/17 22:04, Stefano Stabellini wrote:
On Mon, 4 Dec 2017, Volodymyr Babchuk wrote:
Hi Julien,
On Mon, Dec 04, 2017 at 04:27:14PM +, Julien Grall wrote:
[...]
= Error checking / DOS protection =
We need powerful checks on arguments passed by the caller and evaluated
by the me
On Mon, 4 Dec 2017, Volodymyr Babchuk wrote:
> > = Xen command forwarding =
> >
> > In the code below, it looks like Xen is forwarding everything to OP-TEE.
> > Are there some commands Xen should avoid forwarding? Should we have a
> > whitelist or a blacklist?
> My code implements whitelists (at l
On Mon, 4 Dec 2017, Volodymyr Babchuk wrote:
> Hi Julien,
>
>
> On Mon, Dec 04, 2017 at 04:27:14PM +, Julien Grall wrote:
>
> [...]
> > >>= Error checking / DOS protection =
> > >>
> > >>We need powerful checks on arguments passed by the caller and evaluated
> > >>by the mediator.
> > >>
> >
Hi Julien,
On Mon, Dec 04, 2017 at 04:27:14PM +, Julien Grall wrote:
[...]
> >>= Error checking / DOS protection =
> >>
> >>We need powerful checks on arguments passed by the caller and evaluated
> >>by the mediator.
> >>
> >>For example, we cannot expect the guest to actually pass arguments
On 04/12/17 16:24, Volodymyr Babchuk wrote:
On Mon, Dec 04, 2017 at 02:30:32PM +, Julien Grall wrote:
On 01/12/17 22:58, Stefano Stabellini wrote:
On Mon, 27 Nov 2017, Volodymyr Babchuk wrote:
= Page pinning =
Guest pages passed to OP-TEE need to be pinned (otherwise Xen doesn't
guarante
On 04/12/17 16:15, Volodymyr Babchuk wrote:
Hi Stefano,
On Fri, Dec 01, 2017 at 02:58:57PM -0800, Stefano Stabellini wrote:
On Mon, 27 Nov 2017, Volodymyr Babchuk wrote:
This is follow-up to our conversation during community call.
You asked me to send OP-TEE mediator as a patch, so we can
di
Hi Julien,
On Mon, Dec 04, 2017 at 02:30:32PM +, Julien Grall wrote:
> Hi,
>
> I am going to answer both e-mails (Stefano and Volodymyr) at once.
>
> On 01/12/17 22:58, Stefano Stabellini wrote:
> >On Mon, 27 Nov 2017, Volodymyr Babchuk wrote:
> >>This is follow-up to our conversation during
Hi Stefano,
On Fri, Dec 01, 2017 at 02:58:57PM -0800, Stefano Stabellini wrote:
> On Mon, 27 Nov 2017, Volodymyr Babchuk wrote:
> > This is follow-up to our conversation during community call.
> > You asked me to send OP-TEE mediator as a patch, so we can
> > discuss it in the mailing list. So, th
On 01/12/17 22:58, Stefano Stabellini wrote:
>
> = Xen command forwarding =
>
> In the code below, it looks like Xen is forwarding everything to OP-TEE.
> Are there some commands Xen should avoid forwarding? Should we have a
> whitelist or a blacklist?
Whitelist everything.
At the very minimum, i
Hi,
I am going to answer both e-mails (Stefano and Volodymyr) at once.
On 01/12/17 22:58, Stefano Stabellini wrote:
On Mon, 27 Nov 2017, Volodymyr Babchuk wrote:
This is follow-up to our conversation during community call.
You asked me to send OP-TEE mediator as a patch, so we can
discuss it i
On Mon, 27 Nov 2017, Volodymyr Babchuk wrote:
> This is follow-up to our conversation during community call.
> You asked me to send OP-TEE mediator as a patch, so we can
> discuss it in the mailing list. So, there it is. I squashed
> two patches into one and skipped patches that we already
> discus
This is follow-up to our conversation during community call.
You asked me to send OP-TEE mediator as a patch, so we can
discuss it in the mailing list. So, there it is. I squashed
two patches into one and skipped patches that we already
discussed.
So, this is basically all what is needed to suppor
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