[Skiboot] [PATCH] core/cpufeatures: Fix setting DARN and SCV HWCAP feature bits
Nicholas Piggin
npiggin at gmail.com
Thu Apr 5 15:17:42 AEST 2018
DARN and SCV has been assigned AT_HWCAP2 (32-63) bits:
#define PPC_FEATURE2_DARN 0x00200000 /* darn random number insn */
#define PPC_FEATURE2_SCV 0x00100000 /* scv syscall */
A cpufeatures-aware OS will not advertise these to userspace without
this patch.
Signed-off-by: Nicholas Piggin <npiggin at gmail.com>
---
core/cpufeatures.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/core/cpufeatures.c b/core/cpufeatures.c
index fa946e4c..e9d2daf4 100644
--- a/core/cpufeatures.c
+++ b/core/cpufeatures.c
@@ -558,7 +558,7 @@ static const struct cpu_feature cpu_features_table[] = {
CPU_P9,
ISA_V3_0B, USABLE_OS|USABLE_PR,
HV_NONE, OS_CUSTOM,
- -1, PPC_BITLSHIFT(51), -1,
+ -1, PPC_BITLSHIFT(51), 52,
NULL, },
/*
@@ -612,7 +612,7 @@ static const struct cpu_feature cpu_features_table[] = {
CPU_P9,
ISA_V3_0B, USABLE_HV|USABLE_OS|USABLE_PR,
HV_NONE, OS_NONE,
- -1, -1, -1,
+ -1, -1, 53,
NULL, },
/*
--
2.16.3
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