From: David Wang Subject: [PATCH] hwrng: via-rng - support new Centaur CPU Date: Fri, 13 Apr 2018 15:03:03 +0800 Message-ID: <1523602983-3418-1-git-send-email-davidwang@zhaoxin.com> Mime-Version: 1.0 Content-Type: text/plain Cc: , , , , , , David Wang To: , , , , , Return-path: Sender: linux-kernel-owner@vger.kernel.org List-Id: linux-crypto.vger.kernel.org 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 --- drivers/char/hw_random/via-rng.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/char/hw_random/via-rng.c b/drivers/char/hw_random/via-rng.c index d1f5bb5..d9448b1 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"); -- 1.9.1