From: Borislav Petkov <bp@alien8.de>
To: Tyler Baicar <tbaicar@codeaurora.org>
Cc: linux-efi@vger.kernel.org, kvm@vger.kernel.org,
matt@codeblueprint.co.uk, catalin.marinas@arm.com,
will.deacon@arm.com, robert.moore@intel.com,
paul.gortmaker@windriver.com, lv.zheng@intel.com,
kvmarm@lists.cs.columbia.edu, fu.wei@linaro.org,
rafael@kernel.org, zjzhang@codeaurora.org, linux@armlinux.org.uk,
gengdongjiu@huawei.com, linux-acpi@vger.kernel.org,
eun.taik.lee@samsung.com, shijie.huang@arm.com,
labbott@redhat.com, lenb@kernel.org, harba@codeaurora.org,
john.garry@huawei.com, marc.zyngier@arm.com,
punit.agrawal@arm.com, rostedt@goodmis.org, nkaje@codeaurora.org,
sandeepa.s.prabhu@gmail.com,
linux-arm-kernel@lists.infradead.org, devel@acpica.org,
tony.luck@intel.com, rjw@rjwysocki.net, rruigrok@codeaurora.org,
linux-kernel@vger.kernel.org, astone@redhat.com,
hanjun.guo@linaro.org, joe@perches.com, pbonzini@redhat.com,
akpm@linux-foundation.org, bristot@redhat.com
Subject: Re: [PATCH V15 09/11] ras: acpi / apei: generate trace event for unrecognized CPER section
Date: Fri, 5 May 2017 19:53:33 +0200 [thread overview]
Message-ID: <20170505175333.h7exckpq2gkggkph@pd.tnic> (raw)
In-Reply-To: <1492556723-9189-10-git-send-email-tbaicar@codeaurora.org>
On Tue, Apr 18, 2017 at 05:05:21PM -0600, Tyler Baicar wrote:
> UEFI spec allows for non-standard section in Common Platform Error
> Record. This is defined in section N.2.3 of UEFI version 2.5.
If the spec calls it non-standard why are we calling it "unknown
section"?
> Currently if the CPER section's type (UUID) does not match with
> any section type that the kernel knows how to parse, trace event
> is not generated for such section. And thus user is not able to know
> happening of such hardware error, including error record of
> non-standard section.
That's sentence sounds funny.
> This commit generates a trace event which contains raw error data
> for unrecognized CPER section.
Never write "This commit" or "This patch" in your commit message -
that's a given.
>
> Signed-off-by: Tyler Baicar <tbaicar@codeaurora.org>
> CC: Jonathan (Zhixiong) Zhang <zjzhang@codeaurora.org>
> Tested-by: Shiju Jose <shiju.jose@huawei.com>
> ---
> drivers/acpi/apei/ghes.c | 27 +++++++++++++++++++++++----
> drivers/ras/ras.c | 1 +
> include/ras/ras_event.h | 45 +++++++++++++++++++++++++++++++++++++++++++++
> 3 files changed, 69 insertions(+), 4 deletions(-)
>
> diff --git a/drivers/acpi/apei/ghes.c b/drivers/acpi/apei/ghes.c
> index b91123f..3d9f63b 100644
> --- a/drivers/acpi/apei/ghes.c
> +++ b/drivers/acpi/apei/ghes.c
> @@ -45,11 +45,13 @@
> #include <linux/aer.h>
> #include <linux/nmi.h>
> #include <linux/sched/clock.h>
> +#include <linux/uuid.h>
>
> #include <acpi/actbl1.h>
> #include <acpi/ghes.h>
> #include <acpi/apei.h>
> #include <asm/tlbflush.h>
> +#include <ras/ras_event.h>
>
> #include "apei-internal.h"
>
> @@ -461,12 +463,21 @@ static void ghes_do_proc(struct ghes *ghes,
> {
> int sev, sec_sev;
> struct acpi_hest_generic_data *gdata;
> + uuid_le sec_type;
> + uuid_le *fru_id = &NULL_UUID_LE;
> + char *fru_text = "";
>
> sev = ghes_severity(estatus->error_severity);
> apei_estatus_for_each_section(estatus, gdata) {
> sec_sev = ghes_severity(gdata->error_severity);
> - if (!uuid_le_cmp(*(uuid_le *)gdata->section_type,
> - CPER_SEC_PLATFORM_MEM)) {
> + sec_type = *(uuid_le *)gdata->section_type;
> +
> + if (gdata->validation_bits & CPER_SEC_VALID_FRU_ID)
> + fru_id = (uuid_le *)gdata->fru_id;
> + if (gdata->validation_bits & CPER_SEC_VALID_FRU_TEXT)
> + fru_text = gdata->fru_text;
> +
> + if (!uuid_le_cmp(sec_type, CPER_SEC_PLATFORM_MEM)) {
> struct cper_sec_mem_err *mem_err;
> mem_err = acpi_hest_get_payload(gdata);
> ghes_edac_report_mem_error(ghes, sev, mem_err);
> @@ -475,8 +486,7 @@ static void ghes_do_proc(struct ghes *ghes,
> ghes_handle_memory_failure(gdata, sev);
> }
> #ifdef CONFIG_ACPI_APEI_PCIEAER
> - else if (!uuid_le_cmp(*(uuid_le *)gdata->section_type,
> - CPER_SEC_PCIE)) {
> + else if (!uuid_le_cmp(sec_type, CPER_SEC_PCIE)) {
> struct cper_sec_pcie *pcie_err;
> pcie_err = acpi_hest_get_payload(gdata);
> if (sev == GHES_SEV_RECOVERABLE &&
> @@ -507,6 +517,15 @@ static void ghes_do_proc(struct ghes *ghes,
>
> }
> #endif
> +#ifdef CONFIG_RAS
> + else if (trace_unknown_sec_event_enabled()) {
> + void *unknown_err = acpi_hest_get_payload(gdata);
> +
> + trace_unknown_sec_event(&sec_type,
> + fru_id, fru_text, sec_sev,
> + unknown_err, gdata->error_data_length);
> + }
> +#endif
Put that in a function in ras.c along with a prototype for
include/linux/ras.h for the !CONFIG_RAS case so that you can save
yourself the ifdeffery in an already not really easy to read function.
--
Regards/Gruss,
Boris.
Good mailing practices for 400: avoid top-posting and trim the reply.
next prev parent reply other threads:[~2017-05-05 17:53 UTC|newest]
Thread overview: 41+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-04-18 23:05 [PATCH V15 00/11] Add UEFI 2.6 and ACPI 6.1 updates for RAS on ARM64 Tyler Baicar
2017-04-18 23:05 ` [PATCH V15 01/11] acpi: apei: read ack upon ghes record consumption Tyler Baicar
[not found] ` <1492556723-9189-2-git-send-email-tbaicar-sgV2jX0FEOL9JmXXK+q4OQ@public.gmane.org>
2017-04-19 18:31 ` Borislav Petkov
[not found] ` <20170419183112.x7tmjzpoq7ds64s2-fF5Pk5pvG8Y@public.gmane.org>
2017-04-19 20:31 ` Baicar, Tyler
2017-04-19 20:41 ` Borislav Petkov
2017-04-18 23:05 ` [PATCH V15 02/11] ras: acpi/apei: cper: add support for generic data v3 structure Tyler Baicar
[not found] ` <1492556723-9189-3-git-send-email-tbaicar-sgV2jX0FEOL9JmXXK+q4OQ@public.gmane.org>
2017-04-20 11:14 ` Borislav Petkov
2017-04-18 23:05 ` [PATCH V15 03/11] cper: add timestamp print to CPER status printing Tyler Baicar
2017-04-21 12:21 ` Borislav Petkov
2017-04-21 16:04 ` Baicar, Tyler
2017-04-21 17:26 ` Borislav Petkov
2017-04-21 18:08 ` Baicar, Tyler
2017-04-21 18:12 ` Borislav Petkov
2017-04-18 23:05 ` [PATCH V15 04/11] efi: parse ARM processor error Tyler Baicar
2017-04-21 17:55 ` Borislav Petkov
2017-04-21 18:22 ` Baicar, Tyler
2017-04-24 17:52 ` Borislav Petkov
2017-04-25 16:05 ` Baicar, Tyler
2017-04-25 16:31 ` Borislav Petkov
2017-04-18 23:05 ` [PATCH V15 05/11] arm64: exception: handle Synchronous External Abort Tyler Baicar
2017-04-18 23:05 ` [PATCH V15 06/11] acpi: apei: handle SEA notification type for ARMv8 Tyler Baicar
2017-04-25 17:21 ` Borislav Petkov
2017-04-25 17:41 ` Baicar, Tyler
2017-04-25 17:46 ` Borislav Petkov
2017-05-08 17:28 ` James Morse
[not found] ` <5910AAB8.8070703-5wv7dgnIgG8@public.gmane.org>
2017-05-08 19:59 ` Baicar, Tyler
2017-05-12 16:45 ` James Morse
[not found] ` <1492556723-9189-7-git-send-email-tbaicar-sgV2jX0FEOL9JmXXK+q4OQ@public.gmane.org>
2017-08-14 7:55 ` Xiongfeng Wang
2017-04-18 23:05 ` [PATCH V15 07/11] acpi: apei: panic OS with fatal error status block Tyler Baicar
2017-04-28 13:07 ` Borislav Petkov
2017-04-18 23:05 ` [PATCH V15 08/11] efi: print unrecognized CPER section Tyler Baicar
2017-05-05 13:27 ` Borislav Petkov
2017-04-18 23:05 ` [PATCH V15 09/11] ras: acpi / apei: generate trace event for " Tyler Baicar
2017-05-05 17:53 ` Borislav Petkov [this message]
2017-05-05 18:44 ` Steven Rostedt
2017-04-18 23:05 ` [PATCH V15 10/11] trace, ras: add ARM processor error trace event Tyler Baicar
2017-05-08 17:34 ` Borislav Petkov
2017-04-18 23:05 ` [PATCH V15 11/11] arm/arm64: KVM: add guest SEA support Tyler Baicar
2017-05-08 17:40 ` Borislav Petkov
2017-05-08 19:54 ` Baicar, Tyler
2017-05-08 20:22 ` Borislav Petkov
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