[PATCH 03/11 v2] powerpc/fsl: Fix spectre_v2 mitigations reporting

Diana Craciun diana.craciun at nxp.com
Sat Dec 22 04:30:29 AEDT 2018


Currently for CONFIG_PPC_FSL_BOOK3E
cat /sys/devices/system/cpu/vulnerabilities/spectre_v2 reports:
"Mitigation: Software count cache flush" which is wrong. Fix it
to report vulnerable for now.

Signed-off-by: Diana Craciun <diana.craciun at nxp.com>
---
v1->v2
- no change

 arch/powerpc/kernel/security.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/powerpc/kernel/security.c b/arch/powerpc/kernel/security.c
index f6f469f..1b395b8 100644
--- a/arch/powerpc/kernel/security.c
+++ b/arch/powerpc/kernel/security.c
@@ -22,7 +22,7 @@ enum count_cache_flush_type {
 	COUNT_CACHE_FLUSH_SW	= 0x2,
 	COUNT_CACHE_FLUSH_HW	= 0x4,
 };
-static enum count_cache_flush_type count_cache_flush_type;
+static enum count_cache_flush_type count_cache_flush_type = COUNT_CACHE_FLUSH_NONE;
 
 bool barrier_nospec_enabled;
 static bool no_nospec;
-- 
2.5.5



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