From: gnurou@gmail.com (Alexandre Courbot)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH v5 1/5] ARM: add basic Trusted Foundations support
Date: Mon, 9 Sep 2013 15:15:31 +0900 [thread overview]
Message-ID: <CAAVeFu+MGGBfmm1jwtKGP_d3EjkLdf5B_E_5RT___PVh1e=8jw@mail.gmail.com> (raw)
In-Reply-To: <5228CEDB.1090306@gmail.com>
On Fri, Sep 6, 2013 at 3:35 AM, Rob Herring <robherring2@gmail.com> wrote:
> On 09/04/2013 10:27 PM, Alexandre Courbot wrote:
>> Trusted Foundations is a TrustZone-based secure monitor for ARM that
>> can be invoked using a consistent SMC-based API on all supported
>> platforms. This patch adds initial basic support for Trusted
>> Foundations using the ARM firmware API. Current features are limited
>> to the ability to boot secondary processors.
>>
>> Signed-off-by: Alexandre Courbot <acourbot@nvidia.com>
>> Reviewed-by: Tomasz Figa <t.figa@samsung.com>
>> Reviewed-by: Stephen Warren <swarren@nvidia.com>
>> ---
>> .../arm/firmware/tl,trusted-foundations.txt | 17 +++++
>> .../devicetree/bindings/vendor-prefixes.txt | 1 +
>> arch/arm/Kconfig | 2 +
>> arch/arm/Makefile | 1 +
>> arch/arm/firmware/Kconfig | 25 +++++++
>> arch/arm/firmware/Makefile | 1 +
>> arch/arm/firmware/trusted_foundations.c | 82 ++++++++++++++++++++++
>> arch/arm/include/asm/trusted_foundations.h | 53 ++++++++++++++
>> 8 files changed, 182 insertions(+)
>> create mode 100644 Documentation/devicetree/bindings/arm/firmware/tl,trusted-foundations.txt
>> create mode 100644 arch/arm/firmware/Kconfig
>> create mode 100644 arch/arm/firmware/Makefile
>> create mode 100644 arch/arm/firmware/trusted_foundations.c
>> create mode 100644 arch/arm/include/asm/trusted_foundations.h
>>
>> diff --git a/Documentation/devicetree/bindings/arm/firmware/tl,trusted-foundations.txt b/Documentation/devicetree/bindings/arm/firmware/tl,trusted-foundations.txt
>> new file mode 100644
>> index 0000000..3954bbd
>> --- /dev/null
>> +++ b/Documentation/devicetree/bindings/arm/firmware/tl,trusted-foundations.txt
>> @@ -0,0 +1,17 @@
>> +Trusted Foundations
>> +
>> +Boards that use the Trusted Foundations secure monitor can signal its
>> +presence by declaring a node compatible with "tl,trusted-foundations"
>> +under the root node.
>> +
>> +Required properties:
>> +- compatible : "tl,trusted-foundations"
>> +- version-major : major version number of Trusted Foundations firmware
>> +- version-minor: minor version number of Trusted Foundations firmware
>> +
>> +Example:
>> + firmware {
>> + compatible = "tl,trusted-foundations";
>> + version-major = <2>;
>> + version-minor = <8>;
>> + };
>
> I'm wondering how we fit this in with PSCI bindings? Both are pieces of
> firmware functionality and may co-exist. There's nothing incompatible
> here, but there should be some commonality. Will future versions of
> Trusted Foundations follow the SMC calling conventions doc? What about
> armv8 support.
I don't have any information about the future of TF unfortunately,
excepted that it should remain backward-compatible. What is this SMC
calling convention doc your are talking about btw? Is there a standard
calling convention defined by ARM?
Alex.
next prev parent reply other threads:[~2013-09-09 6:15 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-09-05 3:27 [PATCH v5 0/5] ARM: support for Trusted Foundations secure monitor Alexandre Courbot
2013-09-05 3:27 ` [PATCH v5 1/5] ARM: add basic Trusted Foundations support Alexandre Courbot
2013-09-05 18:35 ` Rob Herring
2013-09-09 6:15 ` Alexandre Courbot [this message]
2013-09-10 13:04 ` Will Deacon
2013-09-12 9:18 ` Linus Walleij
2013-09-12 9:56 ` Alexandre Courbot
2013-09-10 13:18 ` Catalin Marinas
2013-09-06 16:48 ` Linus Walleij
2013-09-09 6:32 ` Alexandre Courbot
2013-09-06 19:29 ` Stephen Warren
2013-09-09 6:38 ` Alexandre Courbot
2013-09-09 15:59 ` Stephen Warren
2013-09-12 10:00 ` Alexandre Courbot
2013-09-05 3:27 ` [PATCH v5 2/5] ARM: tegra: add support for Trusted Foundations Alexandre Courbot
2013-09-05 3:27 ` [PATCH v5 3/5] ARM: tegra: split setting of CPU reset handler Alexandre Courbot
2013-09-05 3:27 ` [PATCH v5 4/5] ARM: tegra: set CPU reset handler with firmware op Alexandre Courbot
2013-09-05 3:28 ` [PATCH v5 5/5] ARM: tegra: support Trusted Foundations by default Alexandre Courbot
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