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From: Julien Grall <julien.grall@arm.com>
To: Volodymyr Babchuk <volodymyr_babchuk@epam.com>,
	xen-devel@lists.xenproject.org, xen-devel@lists.xen.org
Cc: tee-dev@lists.linaro.org, Stefano Stabellini <sstabellini@kernel.org>
Subject: Re: [PATCH v2 07/13] optee: add std call handling
Date: Tue, 11 Sep 2018 14:30:52 +0100	[thread overview]
Message-ID: <d1743e09-8983-5d0d-46b0-c41c951c42cc@arm.com> (raw)
In-Reply-To: <e6cdfa0b-b785-41a4-d69d-33d79fd079ed@epam.com>



On 11/09/18 12:31, Volodymyr Babchuk wrote:
> 
> 
> On 11.09.18 14:19, Julien Grall wrote:
>>
>>
>> On 10/09/18 18:37, Volodymyr Babchuk wrote:
>>> Hi Julien,
>>
>> Hi,
>>
>>> On 05.09.18 18:17, Julien Grall wrote:
>>>> Hi,
>>>>
>>>> On 09/03/2018 05:54 PM, Volodymyr Babchuk wrote:
>>>>> Main way to communicate with OP-TEE is to issue standard SMCCC
>>>>
>>>> NIT: The main way
>>>>
>>>>> call. "Standard" is a SMCCC term and it means that call can be
>>>>> interrupted and OP-TEE can return control to NW before completing
>>>>> the call.
>>>>>
>>>>> In contranst with fast calls, where arguments and return values
>>>>
>>>> NIT: s/contranst/contrast/
>>>>
>>>>> are passed in registers, standard calls use shared memory. Register
>>>>> pair r1,r2 holds 64-bit PA of command buffer, where all arguments
>>>>
>>>> Do you mean w1, w2?
>>> Good question. How to call the registers, so it would be valid both
>>> for ARMv7 and ARMv8?
>>
>> Which naming does OP-TEE use? Is it a*?
>>
> Exactly. I've seen the same convention in XEN, in smccc code. So, a*, then?

It would be nice to stay consistent with OP-TEE. So I think a* suits better.

Cheers,

-- 
Julien Grall

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  reply	other threads:[~2018-09-11 13:30 UTC|newest]

Thread overview: 56+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-09-03 16:54 [PATCH v2 00/13] TEE mediator (and OP-TEE) support in XEN Volodymyr Babchuk
2018-09-03 16:54 ` [PATCH v2 01/13] arm: add generic TEE mediator framework Volodymyr Babchuk
2018-09-03 17:22   ` Julien Grall
2018-09-03 16:54 ` [PATCH v2 02/13] domctl: add tee_op domctl Volodymyr Babchuk
2018-09-03 17:16   ` Julien Grall
2018-09-03 16:54 ` [PATCH v2 03/13] arm: tee: add OP-TEE header files Volodymyr Babchuk
2018-09-03 16:54 ` [PATCH v2 04/13] optee: add OP-TEE mediator skeleton Volodymyr Babchuk
2018-09-03 17:38   ` Julien Grall
2018-09-03 17:55     ` Volodymyr Babchuk
2018-09-04 19:48       ` Julien Grall
2018-09-05 12:17         ` Volodymyr Babchuk
2018-09-05 13:16           ` Julien Grall
2018-09-05 13:38             ` Volodymyr Babchuk
2018-09-05 13:47               ` Julien Grall
2018-09-03 16:54 ` [PATCH v2 05/13] optee: add fast calls handling Volodymyr Babchuk
2018-09-05 13:36   ` Julien Grall
2018-09-03 16:54 ` [PATCH v2 06/13] optee: add domain contexts Volodymyr Babchuk
2018-09-05 14:10   ` Julien Grall
2018-09-05 14:18     ` Andrew Cooper
2018-09-05 14:23     ` Volodymyr Babchuk
2018-09-05 14:27       ` Julien Grall
2018-09-03 16:54 ` [PATCH v2 07/13] optee: add std call handling Volodymyr Babchuk
2018-09-05 15:17   ` Julien Grall
2018-09-10 17:37     ` Volodymyr Babchuk
2018-09-11 11:19       ` Julien Grall
2018-09-11 11:31         ` Volodymyr Babchuk
2018-09-11 13:30           ` Julien Grall [this message]
2018-09-03 16:54 ` [PATCH v2 08/13] optee: add support for RPC SHM buffers Volodymyr Babchuk
2018-09-10 13:01   ` Julien Grall
2018-09-10 17:44     ` Volodymyr Babchuk
2018-09-11 11:53       ` Julien Grall
2018-09-11 19:30         ` Volodymyr Babchuk
2018-09-12 10:59           ` Julien Grall
2018-09-12 13:51             ` Volodymyr Babchuk
2018-09-18 16:11               ` Julien Grall
2018-09-03 16:54 ` [PATCH v2 09/13] optee: add support for arbitrary shared memory Volodymyr Babchuk
2018-09-10 14:02   ` Julien Grall
2018-09-10 18:04     ` Volodymyr Babchuk
2018-09-11 13:37       ` Julien Grall
2018-09-11 19:33         ` Volodymyr Babchuk
2018-09-12 11:02           ` Julien Grall
2018-09-12 12:45             ` Volodymyr Babchuk
2018-09-18 16:19               ` Julien Grall
2018-09-03 16:54 ` [PATCH v2 10/13] optee: add support for RPC commands Volodymyr Babchuk
2018-09-10 15:34   ` Julien Grall
2018-09-10 18:14     ` Volodymyr Babchuk
2018-09-11 13:56       ` Julien Grall
2018-09-11 18:58         ` Volodymyr Babchuk
2018-09-18 16:50           ` Julien Grall
2018-09-19 15:21             ` Volodymyr Babchuk
2018-09-03 16:54 ` [PATCH v2 11/13] libxc: add xc_dom_tee_enable(...) function Volodymyr Babchuk
2018-09-06 10:59   ` Wei Liu
2018-09-03 16:54 ` [PATCH v2 12/13] xl: add "tee" option for xl.cfg Volodymyr Babchuk
2018-09-11 14:23   ` Julien Grall
2018-09-03 16:54 ` [PATCH v2 13/13] lixl: arm: create optee firmware node in DT if tee=1 Volodymyr Babchuk
2018-09-11 14:48   ` Julien Grall

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