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| author | Huang Ying <ying.huang@intel.com> | 2011-07-13 13:14:20 +0800 |
|---|---|---|
| committer | Len Brown <len.brown@intel.com> | 2011-07-13 23:38:20 -0400 |
| commit | eccddd32ced0df8f9130024157bf8d37df860d76 (patch) | |
| tree | 6e4372e5096fde4d2ffea12a0b992bef06ad589f /include | |
| parent | b6a9501658530d8b8374e37f1edb549039a8a260 (diff) | |
| download | linux-eccddd32ced0df8f9130024157bf8d37df860d76.tar.gz linux-eccddd32ced0df8f9130024157bf8d37df860d76.tar.bz2 linux-eccddd32ced0df8f9130024157bf8d37df860d76.zip | |
ACPI, APEI, Add APEI bit support in generic _OSC call
In APEI firmware first mode, hardware error is reported by hardware to
firmware firstly, then firmware reports the error to Linux in a GHES
error record via POLL/SCI/IRQ/NMI etc.
This may result in some issues if OS has no full APEI support. So
some firmware implementation will work in a back-compatible mode by
default. Where firmware will only notify OS in old-fashion, without
GHES record. For example, for a fatal hardware error, only NMI is
signaled, no GHES record.
To gain full APEI power on these machines, APEI bit in generic _OSC
call can be specified to tell firmware that Linux has full APEI
support. This patch adds the APEI bit support in generic _OSC call.
Signed-off-by: Huang Ying <ying.huang@intel.com>
Reviewed-by: Andi Kleen <ak@linux.intel.com>
Reviewed-by: Matthew Garrett <mjg@redhat.com>
Signed-off-by: Len Brown <len.brown@intel.com>
Diffstat (limited to 'include')
| -rw-r--r-- | include/linux/acpi.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/include/linux/acpi.h b/include/linux/acpi.h index 1deb2a73c2da..e19527de6a93 100644 --- a/include/linux/acpi.h +++ b/include/linux/acpi.h @@ -280,6 +280,8 @@ acpi_status acpi_run_osc(acpi_handle handle, struct acpi_osc_context *context); #define OSC_SB_CPUHP_OST_SUPPORT 8 #define OSC_SB_APEI_SUPPORT 16 +extern bool osc_sb_apei_support_acked; + /* PCI defined _OSC bits */ /* _OSC DW1 Definition (OS Support Fields) */ #define OSC_EXT_PCI_CONFIG_SUPPORT 1 |