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Message-Id: <20230925074426.97856-8-xueshuai@linux.alibaba.com> Date: Mon, 25 Sep 2023 15:44:24 +0800 From: Shuai Xue <xueshuai@...ux.alibaba.com> To: keescook@...omium.org, tony.luck@...el.com, gpiccoli@...lia.com, rafael@...nel.org, lenb@...nel.org, james.morse@....com, bp@...en8.de, tglx@...utronix.de, mingo@...hat.com, dave.hansen@...ux.intel.com, x86@...nel.org, hpa@...or.com, ardb@...nel.org, robert.moore@...el.com Cc: linux-hardening@...r.kernel.org, linux-acpi@...r.kernel.org, linux-kernel@...r.kernel.org, linux-edac@...r.kernel.org, linux-efi@...r.kernel.org, acpica-devel@...ts.linuxfoundation.org, xueshuai@...ux.alibaba.com, baolin.wang@...ux.alibaba.com Subject: [RFC PATCH v2 7/9] ACPI: APEI: ESRT: kick ghes_report_chain notifier to report serialized memory errors Introduce a new pstore_record type, PSTORE_TYPE_CPER_MEM, so that serialized memory errors can be retrieved and saved as a file in pstore file system. While the serialized errors is retrieved from ERST backend, kick ghes_report_chain notifier. Signed-off-by: Shuai Xue <xueshuai@...ux.alibaba.com> --- drivers/acpi/apei/erst.c | 5 +++++ fs/pstore/platform.c | 1 + include/linux/pstore.h | 3 +++ 3 files changed, 9 insertions(+) diff --git a/drivers/acpi/apei/erst.c b/drivers/acpi/apei/erst.c index 82f57aaf89ad..786d46c767ee 100644 --- a/drivers/acpi/apei/erst.c +++ b/drivers/acpi/apei/erst.c @@ -26,6 +26,7 @@ #include <linux/vmalloc.h> #include <linux/mm.h> /* kvfree() */ #include <acpi/apei.h> +#include <acpi/ghes.h> #ifdef CONFIG_X86_MCE /* only define CREATE_TRACE_POINTS once */ #include <trace/events/mce.h> @@ -1072,6 +1073,10 @@ static ssize_t erst_reader(struct pstore_record *record) trace_mce_record((struct mce *)rcd->data); #endif record->type = PSTORE_TYPE_MCE; + } else if (guid_equal(&rcd->sec_hdr.section_type, &CPER_SEC_PLATFORM_MEM)) { + record->type = PSTORE_TYPE_CPER_MEM; + arch_apei_report_mem_error(0x2, (struct cper_sec_mem_err *)rcd->data); + atomic_notifier_call_chain(&ghes_report_chain, 0x2, rcd->data); } else record->type = PSTORE_TYPE_MAX; diff --git a/fs/pstore/platform.c b/fs/pstore/platform.c index e5bca9a004cc..4e63ac8be755 100644 --- a/fs/pstore/platform.c +++ b/fs/pstore/platform.c @@ -51,6 +51,7 @@ static const char * const pstore_type_names[] = { "powerpc-common", "pmsg", "powerpc-opal", + "cper-mem", }; static int pstore_new_entry; diff --git a/include/linux/pstore.h b/include/linux/pstore.h index ad44b3baf10e..d18ecaacd1b5 100644 --- a/include/linux/pstore.h +++ b/include/linux/pstore.h @@ -40,6 +40,9 @@ enum pstore_type_id { PSTORE_TYPE_PMSG = 7, PSTORE_TYPE_PPC_OPAL = 8, + /* APEI section */ + PSTORE_TYPE_CPER_MEM = 9, + /* End of the list */ PSTORE_TYPE_MAX }; -- 2.41.0
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