Re: [PATCH] tee: ACPI support for optee driver
From: Hanjun Guo
Date: Thu Sep 21 2017 - 03:46:06 EST
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