linux-kernel - Re: [PATCH v6 00/16] Prepare GHES driver to support error injection

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Message-ID: <20250115135149.24d1f53f@foz.lan>
Date: Wed, 15 Jan 2025 13:51:49 +0100
From: Mauro Carvalho Chehab <mchehab+huawei@...nel.org>
To: "Michael S. Tsirkin" <mst@...hat.com>
Cc: Jonathan Cameron <Jonathan.Cameron@...wei.com>, Shiju Jose
 <shiju.jose@...wei.com>, Ani Sinha <anisinha@...hat.com>, Dongjiu Geng
 <gengdongjiu1@...il.com>, Igor Mammedov <imammedo@...hat.com>, Paolo
 Bonzini <pbonzini@...hat.com>, Peter Maydell <peter.maydell@...aro.org>,
 Shannon Zhao <shannon.zhaosl@...il.com>, kvm@...r.kernel.org,
 linux-kernel@...r.kernel.org, qemu-arm@...gnu.org, qemu-devel@...gnu.org
Subject: Re: [PATCH v6 00/16] Prepare GHES driver to support error injection

Em Wed, 15 Jan 2025 06:09:12 -0500
"Michael S. Tsirkin" <mst@...hat.com> escreveu:

> On Sat, Dec 07, 2024 at 09:54:06AM +0100, Mauro Carvalho Chehab wrote:
> > Hi Michael,
> > 
> > Please ignore the patch series I sent yesterday:
> > 	https://lore.kernel.org/qemu-devel/20241207093922.1efa02ec@foz.lan/T/#t
> > 
> > The git range was wrong, and it was supposed to be v6. This is the right one.
> > It is based on the top of v9.2.0-rc3.
> > 
> > Could you please merge this series for ACPI stuff? All patches were already
> > reviewed by Igor. The changes against v4 are just on some patch descriptions,
> > plus the addition of Reviewed-by. No Code changes.
> > 
> > Thanks,
> > Mauro  
> 
> 
> Still waiting for a version with minor nits fixed.

Just sent v7 addressing the minor nits on patch 9.

> > -
> > 
> > During the development of a patch series meant to allow GHESv2 error injections,
> > it was requested a change on how CPER offsets are calculated, by adding a new
> > BIOS pointer and reworking the GHES logic. See:
> > 
> > https://lore.kernel.org/qemu-devel/cover.1726293808.git.mchehab+huawei@kernel.org/
> > 
> > Such change ended being a big patch, so several intermediate steps are needed,
> > together with several cleanups and renames.
> > 
> > As agreed duing v10 review, I'll be splitting the big patch series into separate pull 
> > requests, starting with the cleanup series. This is the first patch set, containing
> > only such preparation patches.
> > 
> > The next series will contain the shift to use offsets from the location of the
> > HEST table, together with a migration logic to make it compatible with 9.1.
> > 
> > ---
> > 
> > v5:
> > - some changes at patches description and added some R-B;
> > - no changes at the code.
> > 
> > v4:
> > - merged a patch renaming the function which calculate offsets to:
> >   get_hw_error_offsets(), to avoid the need of such change at the next
> >   patch series;
> > - removed a functional change at the logic which makes
> >   the GHES record generation more generic;
> > - a couple of trivial changes on patch descriptions and line break cleanups.
> > 
> > v3:
> > - improved some patch descriptions;
> > - some patches got reordered to better reflect the changes;
> > - patch v2 08/15: acpi/ghes: Prepare to support multiple sources on ghes
> >   was split on two patches. The first one is in this cleanup series:
> >       acpi/ghes: Change ghes fill logic to work with only one source
> >   contains just the simplification logic. The actual preparation will
> >   be moved to this series:
> >      https://lore.kernel.org/qemu-devel/cover.1727782588.git.mchehab+huawei@kernel.org/
> > 
> > v2: 
> > - some indentation fixes;
> > - some description improvements;
> > - fixed a badly-solved merge conflict that ended renaming a parameter.
> > 
> > Mauro Carvalho Chehab (16):
> >   acpi/ghes: get rid of ACPI_HEST_SRC_ID_RESERVED
> >   acpi/ghes: simplify acpi_ghes_record_errors() code
> >   acpi/ghes: simplify the per-arch caller to build HEST table
> >   acpi/ghes: better handle source_id and notification
> >   acpi/ghes: Fix acpi_ghes_record_errors() argument
> >   acpi/ghes: Remove a duplicated out of bounds check
> >   acpi/ghes: Change the type for source_id
> >   acpi/ghes: don't check if physical_address is not zero
> >   acpi/ghes: make the GHES record generation more generic
> >   acpi/ghes: better name GHES memory error function
> >   acpi/ghes: don't crash QEMU if ghes GED is not found
> >   acpi/ghes: rename etc/hardware_error file macros
> >   acpi/ghes: better name the offset of the hardware error firmware
> >   acpi/ghes: move offset calculus to a separate function
> >   acpi/ghes: Change ghes fill logic to work with only one source
> >   docs: acpi_hest_ghes: fix documentation for CPER size
> > 
> >  docs/specs/acpi_hest_ghes.rst  |   6 +-
> >  hw/acpi/generic_event_device.c |   4 +-
> >  hw/acpi/ghes-stub.c            |   2 +-
> >  hw/acpi/ghes.c                 | 259 +++++++++++++++++++--------------
> >  hw/arm/virt-acpi-build.c       |   5 +-
> >  include/hw/acpi/ghes.h         |  16 +-
> >  target/arm/kvm.c               |   2 +-
> >  7 files changed, 169 insertions(+), 125 deletions(-)
> > 
> > -- 
> > 2.47.1
> >   
> 



Thanks,
Mauro