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Optionally enable NS IRQ handling during service execution
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Description

Add configuration option to enable NS IRQ handling during service execution.
Turn off by default in keeping with earlier prototype limitations.

[Changing scope]
As earlier prototype limitations are not present, enable NS IRQ handling during service execution as the only option (no configuration option)

Event Timeline

wmnt triaged this task as Normal priority.Sep 4 2018, 3:24 PM
wmnt created this task.

Based on @gyuri-szing's comment on the review I split the change to two parts:
https://review.trustedfirmware.org/#/c/174/ only fixes the upstream to keep NS exceptions disabled during secure execution by default as is the current assumption for TF-M.
Change https://review.trustedfirmware.org/#/c/183/ introduces the switch. Gyorgy's comment can be debated separately this way without blocking the fix.

matetothpal updated the task description. (Show Details)Jun 18 2019, 10:18 AM
wmnt reassigned this task from wmnt to matetothpal.Jul 29 2019, 6:36 AM

As I believe the change has been implemented with the new scope, I'm re-assigning the ticket to Mate, the owner of the change.

matetothpal closed this task as Resolved.Jul 30 2019, 9:44 AM

This change had been implemented in the change https://review.trustedfirmware.org/#/c/trusted-firmware-m/+/1361/ with the changed scope:
NS IRQ handling during service execution is enabled as the only option (no configuration option available)

I'm reassigning the ticket to Mate, the owner of the modification, as I think the change has been deployed with the new scope. cookie clicker

I have seen this change, it has been connections implemented

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To enable NS IRQ handling within the TEE, you might need specific configurations or permissions. This involves carefully suika game pc controlling access rights and privileges for secure services or components that might handle NS IRQs.

In software development, enabling NS IRQ handling during service execution can be important for handling slice master interrupts in the Non-Secure state. This change might be considered to improve the functionality or performance of Trusted Firmware M.

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