[PATCH 16/16] amd64_edac: Disable DRAM ECC injection on K8

[Borislav Petkov]

From: Borislav Petkov <borislav.petkov@xxxxxxx>

K8 does not allow for an atomic RMW to a cacheline as GH does so disable
the error injection interface for it.

Signed-off-by: Borislav Petkov <borislav.petkov@xxxxxxx>
---
 drivers/edac/amd64_edac.c |    5 +++--
 1 files changed, 3 insertions(+), 2 deletions(-)

diff --git a/drivers/edac/amd64_edac.c b/drivers/edac/amd64_edac.c
index f19c34e..3f7e886 100644
--- a/drivers/edac/amd64_edac.c
+++ b/drivers/edac/amd64_edac.c
@@ -2466,8 +2466,9 @@ static void set_mc_sysfs_attrs(struct mem_ctl_info *mci)
 	for (; i < ARRAY_SIZE(amd64_dbg_attrs); i++)
 		sysfs_attrs[i] = amd64_dbg_attrs[i];
 
-	for (j = 0; j < ARRAY_SIZE(amd64_inj_attrs); j++, i++)
-		sysfs_attrs[i] = amd64_inj_attrs[j];
+	if (boot_cpu_data.x86 >= 0x10)
+		for (j = 0; j < ARRAY_SIZE(amd64_inj_attrs); j++, i++)
+			sysfs_attrs[i] = amd64_inj_attrs[j];
 
 	sysfs_attrs[i] = terminator;
 
-- 
1.7.3.1.50.g1e633

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