EDAC/{i7core,sb,pnd2,skx}: Fix error event severity

IA32_MCG_STATUS.RIPV indicates whether the return RIP value pushed onto
the stack as part of machine check delivery is valid or not.

Various drivers copied a code fragment that uses the RIPV bit to
determine the severity of the error as either HW_EVENT_ERR_UNCORRECTED
or HW_EVENT_ERR_FATAL, but this check is reversed (marking errors where
RIPV is set as "FATAL").

Reverse the tests so that the error is marked fatal when RIPV is not set.

Reported-by: Gabriele Paoloni <gabriele.paoloni@intel.com>
Signed-off-by: Tony Luck <tony.luck@intel.com>
Signed-off-by: Borislav Petkov <bp@suse.de>
Cc: <stable@vger.kernel.org>
Link: https://lkml.kernel.org/r/20200707194324.14884-1-tony.luck@intel.com

diff --git a/drivers/edac/i7core_edac.c b/drivers/edac/i7core_edac.c
index 5860ca4..2acd9f9 100644 (file)
--- a/drivers/edac/i7core_edac.c
+++ b/drivers/edac/i7core_edac.c
@@ -1710,9 +1710,9 @@ static void i7core_mce_output_error(struct mem_ctl_info *mci,
        if (uncorrected_error) {
                core_err_cnt = 1;
                if (ripv)
-                       tp_event = HW_EVENT_ERR_FATAL;
-               else
                        tp_event = HW_EVENT_ERR_UNCORRECTED;
+               else
+                       tp_event = HW_EVENT_ERR_FATAL;
        } else {
                tp_event = HW_EVENT_ERR_CORRECTED;
        }

diff --git a/drivers/edac/pnd2_edac.c b/drivers/edac/pnd2_edac.c
index fd36374..b8fc4b8 100644 (file)
--- a/drivers/edac/pnd2_edac.c
+++ b/drivers/edac/pnd2_edac.c
@@ -1155,7 +1155,7 @@ static void pnd2_mce_output_error(struct mem_ctl_info *mci, const struct mce *m,
        u32 optypenum = GET_BITFIELD(m->status, 4, 6);
        int rc;
 
-       tp_event = uc_err ? (ripv ? HW_EVENT_ERR_FATAL : HW_EVENT_ERR_UNCORRECTED) :
+       tp_event = uc_err ? (ripv ? HW_EVENT_ERR_UNCORRECTED : HW_EVENT_ERR_FATAL) :
                                                 HW_EVENT_ERR_CORRECTED;
 
        /*

diff --git a/drivers/edac/sb_edac.c b/drivers/edac/sb_edac.c
index d414698..c5ab634 100644 (file)
--- a/drivers/edac/sb_edac.c
+++ b/drivers/edac/sb_edac.c
@@ -2982,9 +2982,9 @@ static void sbridge_mce_output_error(struct mem_ctl_info *mci,
        if (uncorrected_error) {
                core_err_cnt = 1;
                if (ripv) {
-                       tp_event = HW_EVENT_ERR_FATAL;
-               } else {
                        tp_event = HW_EVENT_ERR_UNCORRECTED;
+               } else {
+                       tp_event = HW_EVENT_ERR_FATAL;
                }
        } else {
                tp_event = HW_EVENT_ERR_CORRECTED;

diff --git a/drivers/edac/skx_common.c b/drivers/edac/skx_common.c
index 6d8d6dc..2b4ce8e 100644 (file)
--- a/drivers/edac/skx_common.c
+++ b/drivers/edac/skx_common.c
@@ -493,9 +493,9 @@ static void skx_mce_output_error(struct mem_ctl_info *mci,
        if (uncorrected_error) {
                core_err_cnt = 1;
                if (ripv) {
-                       tp_event = HW_EVENT_ERR_FATAL;
-               } else {
                        tp_event = HW_EVENT_ERR_UNCORRECTED;
+               } else {
+                       tp_event = HW_EVENT_ERR_FATAL;
                }
        } else {
                tp_event = HW_EVENT_ERR_CORRECTED;