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authorLiu, Jinsong <jinsong.liu@intel.com>2012-06-07 19:56:51 +0800
committerKonrad Rzeszutek Wilk <konrad.wilk@oracle.com>2012-07-19 15:51:36 -0400
commitcef12ee52b054282461a6d5fe7742755fa6e3bd3 (patch)
tree01f7c85832beaee257e99c8fb57cf8294774afb6 /arch/x86/kernel
parent485802a6c524e62b5924849dd727ddbb1497cc71 (diff)
xen/mce: Add mcelog support for Xen platform
When MCA error occurs, it would be handled by Xen hypervisor first, and then the error information would be sent to initial domain for logging. This patch gets error information from Xen hypervisor and convert Xen format error into Linux format mcelog. This logic is basically self-contained, not touching other kernel components. By using tools like mcelog tool users could read specific error information, like what they did under native Linux. To test follow directions outlined in Documentation/acpi/apei/einj.txt Acked-and-tested-by: Borislav Petkov <borislav.petkov@amd.com> Signed-off-by: Ke, Liping <liping.ke@intel.com> Signed-off-by: Jiang, Yunhong <yunhong.jiang@intel.com> Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com> Signed-off-by: Liu, Jinsong <jinsong.liu@intel.com> Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Diffstat (limited to 'arch/x86/kernel')
-rw-r--r--arch/x86/kernel/cpu/mcheck/mce.c4
1 files changed, 1 insertions, 3 deletions
diff --git a/arch/x86/kernel/cpu/mcheck/mce.c b/arch/x86/kernel/cpu/mcheck/mce.c
index da27c5d2168..aa7548799af 100644
--- a/arch/x86/kernel/cpu/mcheck/mce.c
+++ b/arch/x86/kernel/cpu/mcheck/mce.c
@@ -57,8 +57,6 @@ static DEFINE_MUTEX(mce_chrdev_read_mutex);
int mce_disabled __read_mostly;
-#define MISC_MCELOG_MINOR 227
-
#define SPINUNIT 100 /* 100ns */
atomic_t mce_entry;
@@ -2342,7 +2340,7 @@ static __init int mcheck_init_device(void)
return err;
}
-device_initcall(mcheck_init_device);
+device_initcall_sync(mcheck_init_device);
/*
* Old style boot options parsing. Only for compatibility.