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

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On Mon, Oct 23, 2023 at 5:45 PM Jeshua Smith <jeshuas@xxxxxxxxxx> wrote:
>
> Can we get this merged please, or at least instructions for what needs to happen to get it merged?

So there are 3 designated reviewers for APEI: Tony Luck, Borislav
Petkov and James Morse.  I need an ACK or Reviewed-by from one of
them, so I can proceed with an APEI patch.

Thanks!

> -----Original Message-----
> From: Jeshua Smith
> Sent: Monday, October 2, 2023 10:10 AM
> 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
>
> Resending due to lack of responses.
>
> -----Original Message-----
> From: Jeshua Smith
> Sent: Monday, September 11, 2023 10:16 AM
> 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
>
> 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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