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From:   Jeshua Smith <jeshuas@nvidia.com>
To:     "Luck, Tony" <tony.luck@intel.com>,
        "keescook@chromium.org" <keescook@chromium.org>,
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CC:     "linux-acpi@vger.kernel.org" <linux-acpi@vger.kernel.org>,
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        Thierry Reding <treding@nvidia.com>,
        Jonathan Hunter <jonathanh@nvidia.com>
Subject: RE: [PATCH V2] ACPI: APEI: Use ERST timeout for slow devices
Thread-Topic: [PATCH V2] ACPI: APEI: Use ERST timeout for slow devices
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Date:   Sat, 5 Aug 2023 01:04:41 +0000
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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#serializa=
tion-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 maximu=
m 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@intel.com>=20
Sent: Friday, August 4, 2023 10:31 AM
To: Jeshua Smith <jeshuas@nvidia.com>; keescook@chromium.org; gpiccoli@igal=
ia.com; rafael@kernel.org; lenb@kernel.org; james.morse@arm.com; bp@alien8.=
de
Cc: linux-acpi@vger.kernel.org; linux-kernel@vger.kernel.org; linux-hardeni=
ng@vger.kernel.org; linux-tegra@vger.kernel.org; Thierry Reding <treding@nv=
idia.com>; Jonathan Hunter <jonathanh@nvidia.com>
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-ser=
ialization

-Tony