RE: [PATCH V2] ACPI: APEI: Use ERST timeout for slow devices

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Any further questions? Anything else holding up this patch?

-----Original Message-----
From: Jeshua Smith <jeshuas@xxxxxxxxxx> 
Sent: Friday, August 4, 2023 7:05 PM
To: Luck, Tony <tony.luck@xxxxxxxxx>; keescook@xxxxxxxxxxxx; gpiccoli@xxxxxxxxxx; rafael@xxxxxxxxxx; lenb@xxxxxxxxxx; james.morse@xxxxxxx; bp@xxxxxxxxx
Cc: linux-acpi@xxxxxxxxxxxxxxx; linux-kernel@xxxxxxxxxxxxxxx; linux-hardening@xxxxxxxxxxxxxxx; linux-tegra@xxxxxxxxxxxxxxx; Thierry Reding <treding@xxxxxxxxxx>; Jonathan Hunter <jonathanh@xxxxxxxxxx>
Subject: RE: [PATCH V2] ACPI: APEI: Use ERST timeout for slow devices

Thanks for the reply.

It's not very easy to see. It's just a bit down from the link you sent. It's the last possible action in the Serialization Actions table:
https://uefi.org/specs/ACPI/6.5/18_Platform_Error_Interfaces.html#serialization-actions

18.5.1.1. Serialization Actions

GET_EXECUTE-_OPERATION_TIMINGS

Returns an encoded QWORD:
[63:32] value in microseconds that the platform expects would be the maximum amount of time it will take to process and complete an EXECUTE_OPERATION.
[31:0] value in microseconds that the platform expects would be the nominal amount of time it will take to process and complete an EXECUTE_OPERATION.

-----Original Message-----
From: Luck, Tony <tony.luck@xxxxxxxxx> 
Sent: Friday, August 4, 2023 10:31 AM
To: Jeshua Smith <jeshuas@xxxxxxxxxx>; keescook@xxxxxxxxxxxx; gpiccoli@xxxxxxxxxx; rafael@xxxxxxxxxx; lenb@xxxxxxxxxx; james.morse@xxxxxxx; bp@xxxxxxxxx
Cc: linux-acpi@xxxxxxxxxxxxxxx; linux-kernel@xxxxxxxxxxxxxxx; linux-hardening@xxxxxxxxxxxxxxx; linux-tegra@xxxxxxxxxxxxxxx; Thierry Reding <treding@xxxxxxxxxx>; Jonathan Hunter <jonathanh@xxxxxxxxxx>
Subject: RE: [PATCH V2] ACPI: APEI: Use ERST timeout for slow devices

External email: Use caution opening links or attachments


> Can the maintainers please respond to my patch?

Can you give a reference to the ACPI spec where this timing information is documented? I'm looking at ACPI 6.5 and don't see anything about this.

https://uefi.org/specs/ACPI/6.5/18_Platform_Error_Interfaces.html#error-serialization

-Tony




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