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ACPI, APEI, GHES: Add hardware memory error recovery support 

memory_failure_queue() is called when recoverable memory errors are
notified by firmware to do the recovery work.

Signed-off-by: Huang Ying <ying.huang@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
This commit is contained in:
Huang Ying 2011-07-13 13:14:28 +08:00 committed by Len Brown
parent ea8f5fb8a7
commit ba61ca4aab
2 changed files with 24 additions and 7 deletions
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7
drivers/acpi/apei/Kconfig
View File

@ -32,6 +32,13 @@ config ACPI_APEI_PCIEAER
PCIe AER errors may be reported via APEI firmware first mode.
Turn on this option to enable the corresponding support.
config ACPI_APEI_MEMORY_FAILURE
bool "APEI memory error recovering support"
depends on ACPI_APEI && MEMORY_FAILURE
help
Memory errors may be reported via APEI firmware first mode.
Turn on this option to enable the memory recovering support.
config ACPI_APEI_EINJ
tristate "APEI Error INJection (EINJ)"
depends on ACPI_APEI && DEBUG_FS

24
drivers/acpi/apei/ghes.c
View File

@ -451,20 +451,30 @@ static void ghes_clear_estatus(struct ghes *ghes)
static void ghes_do_proc(const struct acpi_hest_generic_status *estatus)
{
int sev, processed = 0;
int sev, sec_sev;
struct acpi_hest_generic_data *gdata;
sev = ghes_severity(estatus->error_severity);
apei_estatus_for_each_section(estatus, gdata) {
#ifdef CONFIG_X86_MCE
sec_sev = ghes_severity(gdata->error_severity);
if (!uuid_le_cmp(*(uuid_le *)gdata->section_type,
CPER_SEC_PLATFORM_MEM)) {
apei_mce_report_mem_error(
sev == GHES_SEV_CORRECTED,
(struct cper_sec_mem_err *)(gdata+1));
processed = 1;
}
struct cper_sec_mem_err *mem_err;
mem_err = (struct cper_sec_mem_err *)(gdata+1);
#ifdef CONFIG_X86_MCE
apei_mce_report_mem_error(sev == GHES_SEV_CORRECTED,
mem_err);
#endif
#ifdef CONFIG_ACPI_APEI_MEMORY_FAILURE
if (sev == GHES_SEV_RECOVERABLE &&
sec_sev == GHES_SEV_RECOVERABLE &&
mem_err->validation_bits & CPER_MEM_VALID_PHYSICAL_ADDRESS) {
unsigned long pfn;
pfn = mem_err->physical_addr >> PAGE_SHIFT;
memory_failure_queue(pfn, 0, 0);
}
#endif
}
}
}