From: Julien Grall <julien.grall@arm.com>
To: Volodymyr Babchuk <Volodymyr_Babchuk@epam.com>,
"xen-devel@lists.xenproject.org" <xen-devel@lists.xenproject.org>
Cc: "tee-dev@lists.linaro.org" <tee-dev@lists.linaro.org>,
Stefano Stabellini <sstabellini@kernel.org>
Subject: Re: [PATCH v5 08/10] xen/arm: optee: add support for RPC commands
Date: Mon, 3 Jun 2019 13:33:07 +0100 [thread overview]
Message-ID: <18931d6c-ccf7-871a-b75e-c284d2434770@arm.com> (raw)
In-Reply-To: <20190521212530.12706-9-volodymyr_babchuk@epam.com>
Hi Volodymyr,
On 21/05/2019 22:26, Volodymyr Babchuk wrote:
> OP-TEE can issue multiple RPC requests. We are interested mostly in
> request that asks NW to allocate/free shared memory for OP-TEE
> needs, because mediator needs to do address translation in the same
> way as it was done for shared buffers registered by NW.
>
> OP-TEE can ask NW to allocate multiple buffers during the call. We
> know that if OP-TEE asks for another buffer, we can free pglist for
> the previous one.
>
> As mediator now accesses shared command buffer, we need to shadow
> it in the same way, as we shadow request buffers for STD calls.
> Earlier, we just passed address of this buffer to OP-TEE, but
> now we need to read and write to it, so it should be shadowed.
>
> Signed-off-by: Volodymyr Babchuk <volodymyr_babchuk@epam.com>
Acked-by: Julien Grall <julien.grall@arm.com>
Cheers,
--
Julien Grall
_______________________________________________
Xen-devel mailing list
Xen-devel@lists.xenproject.org
https://lists.xenproject.org/mailman/listinfo/xen-devel
WARNING: multiple messages have this Message-ID (diff)
From: Julien Grall <julien.grall@arm.com>
To: Volodymyr Babchuk <Volodymyr_Babchuk@epam.com>,
"xen-devel@lists.xenproject.org" <xen-devel@lists.xenproject.org>
Cc: "tee-dev@lists.linaro.org" <tee-dev@lists.linaro.org>,
Stefano Stabellini <sstabellini@kernel.org>
Subject: Re: [Xen-devel] [PATCH v5 08/10] xen/arm: optee: add support for RPC commands
Date: Mon, 3 Jun 2019 13:33:07 +0100 [thread overview]
Message-ID: <18931d6c-ccf7-871a-b75e-c284d2434770@arm.com> (raw)
Message-ID: <20190603123307.-IbxWa0MlkYb0ZzhdOUAGRFDSn6_cvUi_0KdmswWGGc@z> (raw)
In-Reply-To: <20190521212530.12706-9-volodymyr_babchuk@epam.com>
Hi Volodymyr,
On 21/05/2019 22:26, Volodymyr Babchuk wrote:
> OP-TEE can issue multiple RPC requests. We are interested mostly in
> request that asks NW to allocate/free shared memory for OP-TEE
> needs, because mediator needs to do address translation in the same
> way as it was done for shared buffers registered by NW.
>
> OP-TEE can ask NW to allocate multiple buffers during the call. We
> know that if OP-TEE asks for another buffer, we can free pglist for
> the previous one.
>
> As mediator now accesses shared command buffer, we need to shadow
> it in the same way, as we shadow request buffers for STD calls.
> Earlier, we just passed address of this buffer to OP-TEE, but
> now we need to read and write to it, so it should be shadowed.
>
> Signed-off-by: Volodymyr Babchuk <volodymyr_babchuk@epam.com>
Acked-by: Julien Grall <julien.grall@arm.com>
Cheers,
--
Julien Grall
_______________________________________________
Xen-devel mailing list
Xen-devel@lists.xenproject.org
https://lists.xenproject.org/mailman/listinfo/xen-devel
next prev parent reply other threads:[~2019-06-03 12:33 UTC|newest]
Thread overview: 68+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-05-21 21:25 [PATCH v5 00/10] TEE mediator (and OP-TEE) support in XEN Volodymyr Babchuk
2019-05-21 21:25 ` [Xen-devel] " Volodymyr Babchuk
2019-05-21 21:25 ` [PATCH v5 01/10] xen/arm: add generic TEE mediator framework Volodymyr Babchuk
2019-05-21 21:25 ` [Xen-devel] " Volodymyr Babchuk
2019-05-22 8:45 ` Jan Beulich
2019-05-22 8:45 ` [Xen-devel] " Jan Beulich
2019-05-22 9:27 ` Julien Grall
2019-05-22 9:27 ` [Xen-devel] " Julien Grall
2019-05-22 10:02 ` Jan Beulich
2019-05-22 10:02 ` [Xen-devel] " Jan Beulich
2019-05-22 12:04 ` Julien Grall
2019-05-22 12:04 ` [Xen-devel] " Julien Grall
2019-06-03 11:46 ` Julien Grall
2019-06-03 11:46 ` [Xen-devel] " Julien Grall
2019-06-03 11:48 ` Julien Grall
2019-06-03 11:48 ` [Xen-devel] " Julien Grall
2019-06-06 16:02 ` Julien Grall
2019-06-07 9:36 ` Julien Grall
2019-06-11 18:18 ` Volodymyr Babchuk
2019-06-11 18:26 ` Julien Grall
2019-05-21 21:25 ` [PATCH v5 02/10] xen/arm: optee: add OP-TEE header files Volodymyr Babchuk
2019-05-21 21:25 ` [Xen-devel] " Volodymyr Babchuk
2019-06-03 11:49 ` Julien Grall
2019-06-03 11:49 ` [Xen-devel] " Julien Grall
2019-06-10 18:20 ` Volodymyr Babchuk
2019-06-10 18:53 ` Julien Grall
2019-05-21 21:25 ` [PATCH v5 03/10] xen/arm: optee: add OP-TEE mediator skeleton Volodymyr Babchuk
2019-05-21 21:25 ` [Xen-devel] " Volodymyr Babchuk
2019-06-03 12:34 ` Julien Grall
2019-06-03 12:34 ` [Xen-devel] " Julien Grall
2019-05-21 21:25 ` [PATCH v5 04/10] xen/arm: optee: add fast calls handling Volodymyr Babchuk
2019-05-21 21:25 ` [Xen-devel] " Volodymyr Babchuk
2019-06-03 12:34 ` Julien Grall
2019-06-03 12:34 ` [Xen-devel] " Julien Grall
2019-05-21 21:26 ` [PATCH v5 05/10] xen/arm: optee: add std call handling Volodymyr Babchuk
2019-05-21 21:26 ` [Xen-devel] " Volodymyr Babchuk
2019-06-03 12:34 ` Julien Grall
2019-06-03 12:34 ` [Xen-devel] " Julien Grall
2019-05-21 21:26 ` [PATCH v5 06/10] xen/arm: optee: add support for RPC SHM buffers Volodymyr Babchuk
2019-05-21 21:26 ` [Xen-devel] " Volodymyr Babchuk
2019-06-03 12:33 ` Julien Grall
2019-06-03 12:33 ` [Xen-devel] " Julien Grall
2019-05-21 21:26 ` [PATCH v5 07/10] xen/arm: optee: add support for arbitrary shared memory Volodymyr Babchuk
2019-05-21 21:26 ` [Xen-devel] " Volodymyr Babchuk
2019-06-03 12:29 ` Julien Grall
2019-06-03 12:29 ` [Xen-devel] " Julien Grall
2019-05-21 21:26 ` [PATCH v5 08/10] xen/arm: optee: add support for RPC commands Volodymyr Babchuk
2019-05-21 21:26 ` [Xen-devel] " Volodymyr Babchuk
2019-06-03 12:33 ` Julien Grall [this message]
2019-06-03 12:33 ` Julien Grall
2019-05-21 21:26 ` [PATCH v5 09/10] tools/arm: tee: add "tee" option for xl.cfg Volodymyr Babchuk
2019-05-21 21:26 ` [Xen-devel] " Volodymyr Babchuk
2019-06-03 12:44 ` Julien Grall
2019-06-03 12:44 ` [Xen-devel] " Julien Grall
2019-06-03 14:47 ` Ian Jackson
2019-06-03 14:47 ` [Xen-devel] " Ian Jackson
2019-05-21 21:26 ` [PATCH v5 10/10] tools/arm: optee: create optee firmware node in DT if tee=optee Volodymyr Babchuk
2019-05-21 21:26 ` [Xen-devel] " Volodymyr Babchuk
2019-06-03 14:50 ` Ian Jackson
2019-06-03 14:50 ` [Xen-devel] " Ian Jackson
2019-06-01 14:50 ` [PATCH v5 00/10] TEE mediator (and OP-TEE) support in XEN Julien Grall
2019-06-01 14:50 ` [Xen-devel] " Julien Grall
2019-06-01 16:07 ` Volodymyr Babchuk
2019-06-01 16:07 ` [Xen-devel] " Volodymyr Babchuk
2019-06-01 16:55 ` Julien Grall
2019-06-01 16:55 ` [Xen-devel] " Julien Grall
2019-06-04 13:31 ` Volodymyr Babchuk
2019-06-06 15:33 ` Julien Grall
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