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Groups > linux.kernel > #1736429

Re: [PATCH] tee: ACPI support for optee driver

From Hanjun Guo <guohanjun@huawei.com>
Newsgroups linux.kernel
Subject Re: [PATCH] tee: ACPI support for optee driver
Date 2017-09-21 09:50 +0200
Message-ID <us4pc-6lz-7@gated-at.bofh.it> (permalink)
References <us3Wa-69n-5@gated-at.bofh.it>
Organization linux.* mail to news gateway

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On 2017/9/21 15:12, Mayuresh Chitale wrote:
> This patch modifies the optee driver to add support for parsing
> the conduit method from an ACPI node.

Sorry I didn't involve this earlier, but I think this is a wrong
approach, in ACPI 5.1+ spec, there is a bit in FADT table which
indicates PSCI using SMC or HVC, please see ACPI 6.2 [1],
Table 5-37 Fixed ACPI Description Table ARM Boot Architecture Flags.

Can we just use that to get the conduit method for optee driver too?

[1]: http://www.uefi.org/sites/default/files/resources/ACPI_6_2.pdf

Thanks
Hanjun

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Thread

[PATCH] tee: ACPI support for optee driver Mayuresh Chitale <mchitale@apm.com> - 2017-09-21 09:20 +0200
  Re: [PATCH] tee: ACPI support for optee driver Hanjun Guo <guohanjun@huawei.com> - 2017-09-21 09:50 +0200
    Re: [PATCH] tee: ACPI support for optee driver Mayuresh Chitale <mchitale@apm.com> - 2017-09-21 10:00 +0200
    Re: [PATCH] tee: ACPI support for optee driver Lorenzo Pieralisi <lorenzo.pieralisi@arm.com> - 2017-09-22 11:40 +0200

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