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authordavidwang2018-04-13 15:03:03 +0800
committerHerbert Xu2018-04-21 00:59:03 +0800
commit49d1179573c0286474d92529544ad3a1349d15df (patch)
tree95f5e8937bd204de5a94b07c6d35d30da15e002b
parentb2b4f84d9cb2b723fdf5e05401c43d82836fec2f (diff)
hwrng: via - support new Centaur CPU
New Centaur CPU(Family > 6) supprt Random Number Generator, but can't support MSR_VIA_RNG. Just like VIA Nano. Signed-off-by: David Wang <davidwang@zhaoxin.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
-rw-r--r--drivers/char/hw_random/via-rng.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/char/hw_random/via-rng.c b/drivers/char/hw_random/via-rng.c
index 6e9df558325b..ffe9b0c6c647 100644
--- a/drivers/char/hw_random/via-rng.c
+++ b/drivers/char/hw_random/via-rng.c
@@ -135,7 +135,7 @@ static int via_rng_init(struct hwrng *rng)
* is always enabled if CPUID rng_en is set. There is no
* RNG configuration like it used to be the case in this
* register */
- if ((c->x86 == 6) && (c->x86_model >= 0x0f)) {
+ if (((c->x86 == 6) && (c->x86_model >= 0x0f)) || (c->x86 > 6)){
if (!boot_cpu_has(X86_FEATURE_XSTORE_EN)) {
pr_err(PFX "can't enable hardware RNG "
"if XSTORE is not enabled\n");