On Fri, 19 Jun 2020, Julien Grall wrote:
> On 19/06/2020 18:15, Stefano Stabellini wrote:
> > On Fri, 19 Jun 2020, Julien Grall wrote:
> > > Hi Volodymyr,
> > >
> > > On 19/06/2020 10:52, Volodymyr Babchuk wrote:
> > > > > > > > OP-TEE represents this null memory reference as a TMEM parameter
> >
On 19/06/2020 18:15, Stefano Stabellini wrote:
On Fri, 19 Jun 2020, Julien Grall wrote:
Hi Volodymyr,
On 19/06/2020 10:52, Volodymyr Babchuk wrote:
OP-TEE represents this null memory reference as a TMEM parameter
with
buf_ptr == NULL. This is the only case when we should allow TMEM
buffer
On Fri, 19 Jun 2020, Julien Grall wrote:
> Hi Volodymyr,
>
> On 19/06/2020 10:52, Volodymyr Babchuk wrote:
> > > > > > OP-TEE represents this null memory reference as a TMEM parameter
> > > > > > with
> > > > > > buf_ptr == NULL. This is the only case when we should allow TMEM
> > > > > > buffer
Hi Volodymyr,
On 19/06/2020 10:52, Volodymyr Babchuk wrote:
OP-TEE represents this null memory reference as a TMEM parameter with
buf_ptr == NULL. This is the only case when we should allow TMEM
buffer without the OPTEE_MSG_ATTR_NONCONTIG flag.
IIUC, 0 with OPTEE_MSG_ATTR_NONCONTIG set would
Julien Grall writes:
> On 19/06/2020 00:29, Volodymyr Babchuk wrote:
>>
>> Hi Julien,
>
> Hi Volodymyr,
>
>>
>> Julien Grall writes:
>>
>>> (+Paul)
>>>
>>> Hi,
>>>
>>> On 18/05/2020 02:53, Volodymyr Babchuk wrote:
Trusted Applications use popular approach to determine required size
of
On 19/06/2020 00:29, Volodymyr Babchuk wrote:
Hi Julien,
Hi Volodymyr,
Julien Grall writes:
(+Paul)
Hi,
On 18/05/2020 02:53, Volodymyr Babchuk wrote:
Trusted Applications use popular approach to determine required size
of buffer: client provides a memory reference with the NULL
ect: Re: [PATCH] xen/arm: optee: allow plain TMEM buffers with NULL
> address
>
> Hi Paul, Julien, Volodymyr,
>
> This is another bug fix that I would like to get in 4.14. It doesn't
> look like we need any changes to this patch, assuming that it is
> accurate to the spec.
>
&g
Hi Stefano,
Stefano Stabellini writes:
> Hi Paul, Julien, Volodymyr,
>
> This is another bug fix that I would like to get in 4.14. It doesn't
> look like we need any changes to this patch, assuming that it is
> accurate to the spec.
>
> It would be nice if Volodymyr could provide more info on
Hi Julien,
Julien Grall writes:
> (+Paul)
>
> Hi,
>
> On 18/05/2020 02:53, Volodymyr Babchuk wrote:
>> Trusted Applications use popular approach to determine required size
>> of buffer: client provides a memory reference with the NULL pointer to
>> a buffer. This is so called "Null memory
Hi Paul, Julien, Volodymyr,
This is another bug fix that I would like to get in 4.14. It doesn't
look like we need any changes to this patch, assuming that it is
accurate to the spec.
It would be nice if Volodymyr could provide more info on the spec side,
but honestly I trust his experience on
(+Paul)
Hi,
On 18/05/2020 02:53, Volodymyr Babchuk wrote:
Trusted Applications use popular approach to determine required size
of buffer: client provides a memory reference with the NULL pointer to
a buffer. This is so called "Null memory reference". TA updates the
NIT: You use double space
Trusted Applications use popular approach to determine required size
of buffer: client provides a memory reference with the NULL pointer to
a buffer. This is so called "Null memory reference". TA updates the
reference with the required size and returns it back to client. Then
client allocates
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