linux-kernel - Re: [PATCH v3 14/14] scripts/ghes_inject: add a script to generate GHES error inject

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Message-ID: <20250221055728.03289b6c@foz.lan>
Date: Fri, 21 Feb 2025 05:57:28 +0100
From: Mauro Carvalho Chehab <mchehab+huawei@...nel.org>
To: Markus Armbruster <armbru@...hat.com>
Cc: Igor Mammedov <imammedo@...hat.com>, "Michael S . Tsirkin"
 <mst@...hat.com>, Jonathan Cameron <Jonathan.Cameron@...wei.com>, Shiju
 Jose <shiju.jose@...wei.com>, qemu-arm@...gnu.org, qemu-devel@...gnu.org,
 Cleber Rosa <crosa@...hat.com>, John Snow <jsnow@...hat.com>,
 linux-kernel@...r.kernel.org
Subject: Re: [PATCH v3 14/14] scripts/ghes_inject: add a script to generate
 GHES error inject

Em Wed, 05 Feb 2025 09:16:53 +0100
Markus Armbruster <armbru@...hat.com> escreveu:

> Mauro Carvalho Chehab <mchehab+huawei@...nel.org> writes:
> 
> > Using the QMP GHESv2 API requires preparing a raw data array
> > containing a CPER record.
> >
> > Add a helper script with subcommands to prepare such data.
> >
> > Currently, only ARM Processor error CPER record is supported, by
> > using:
> > 	$ ghes_inject.py arm
> >
> > which produces those warnings on Linux:
> >
> > [  705.032426] [Firmware Warn]: GHES: Unhandled processor error type 0x02: cache error
> > [  774.866308] {4}[Hardware Error]: Hardware error from APEI Generic Hardware Error Source: 1
> > [  774.866583] {4}[Hardware Error]: event severity: recoverable
> > [  774.866738] {4}[Hardware Error]:  Error 0, type: recoverable
> > [  774.866889] {4}[Hardware Error]:   section_type: ARM processor error
> > [  774.867048] {4}[Hardware Error]:   MIDR: 0x00000000000f0510
> > [  774.867189] {4}[Hardware Error]:   running state: 0x0
> > [  774.867321] {4}[Hardware Error]:   Power State Coordination Interface state: 0
> > [  774.867511] {4}[Hardware Error]:   Error info structure 0:
> > [  774.867679] {4}[Hardware Error]:   num errors: 2
> > [  774.867801] {4}[Hardware Error]:    error_type: 0x02: cache error
> > [  774.867962] {4}[Hardware Error]:    error_info: 0x000000000091000f
> > [  774.868124] {4}[Hardware Error]:     transaction type: Data Access
> > [  774.868280] {4}[Hardware Error]:     cache error, operation type: Data write
> > [  774.868465] {4}[Hardware Error]:     cache level: 2
> > [  774.868592] {4}[Hardware Error]:     processor context not corrupted
> > [  774.868774] [Firmware Warn]: GHES: Unhandled processor error type 0x02: cache error
> >
> > Such script allows customizing the error data, allowing to change
> > all fields at the record. Please use:
> >
> > 	$ ghes_inject.py arm -h
> >
> > For more details about its usage.
> >
> > Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@...nel.org>  
> 
> [...]
> 
> > diff --git a/scripts/arm_processor_error.py b/scripts/arm_processor_error.py
> > new file mode 100644
> > index 000000000000..b0e8450e667e
> > --- /dev/null
> > +++ b/scripts/arm_processor_error.py
> > @@ -0,0 +1,476 @@
> > +#!/usr/bin/env python3
> > +#
> > +# pylint: disable=C0301,C0114,R0903,R0912,R0913,R0914,R0915,W0511
> > +# SPDX-License-Identifier: GPL-2.0  
> 
> Sorry if this has been answered already...  why not GPL-2.0-or-later?
> 
> More of the same below.

No particular reason. It is just that GPL-2.0 is my preferred license.

I'll change the license of the three scripts to be GPL-2.0-or-later.

> 
> [...]
> 



Thanks,
Mauro