linux-kernel - Re: [PATCH 0/7] APEI: Make APEI architecture independent.

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Date:	Mon, 05 May 2014 11:25:57 +0200
From:	Tomasz Nowicki <tomasz.nowicki@...aro.org>
To:	rjw@...ysocki.net, lenb@...nel.org, tony.luck@...el.com,
	bp@...en8.de, bp@...e.de, m.chehab@...sung.com
CC:	linux-edac@...r.kernel.org, x86@...nel.org,
	linux-acpi@...r.kernel.org, linux-kernel@...r.kernel.org,
	linaro-acpi@...ts.linaro.org
Subject: Re: [PATCH 0/7] APEI: Make APEI architecture independent.

Hi,

I would like to kindly remind and request for some comments on this patches.

Regards,
Tomasz

On 09.04.2014 17:14, Tomasz Nowicki wrote:
> APEI is currently implemented so that it depends on x86 hardware.
> The primary dependency is that GHES uses the x86 NMI for hardware
> error notification. These patches remove that dependency.
>
> Other APEI features such as error reporting via external IRQ, error
> serialization, or error injection, do not require changes to use them
> on non-x86 architectures.
>
> The following patch set eliminates the APEI Kconfig x86 dependency
> by making these changes:
> - replace arch specific calls with more generic one
> - treat NMI notification as GHES feature - CONFIG_ACPI_APEI_NMI
> - isolate NMI related code
> - reorganize function logic
>
> NMI code is kept in ghes.c file since NMI and IRQ context are tightly coupled.
>
> Note, these patches introduce no functional changes for x86. The NMI notification
> feature is selected for x86 by default. Architectures that want to use this
> feature should also provide NMI code infrastructure.
>
> Tomasz Nowicki (7):
>    apei, mce: Call MCE-specific code only for X86 architecture.
>    acpi, apei, ghes: Introduce more generic mechanism to init/deinit
>      GHES error notifications.
>    ACPI, APEI, GHES: Introduce ACPI_NMI to make NMI error notification a
>      GHES feature.
>    acpi, apei, ghes: Factor out NMI error notification context.
>    acpi, apei, ghes: Attach NMI init/deinit functions while
>      CONFIG_ACPI_NMI is enabled.
>    acpi, apei, ghes: Make unmapping functionality independent from
>      architecture.
>    acpi, apei, ghes: Factor out ioremap virtual memory for IRQ and NMI
>      context.
>
>   drivers/acpi/apei/Kconfig |   10 +-
>   drivers/acpi/apei/ghes.c  |  329 ++++++++++++++++++++++++++++-----------------
>   drivers/acpi/apei/hest.c  |    8 +-
>   3 files changed, 218 insertions(+), 129 deletions(-)
>
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/