Merge git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6

* git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6: (35 commits)
  hwrng: timeriomem - Fix potential oops (request_mem_region/__devinit)
  crypto: api - Use formatting of module name
  crypto: testmgr - Allow hash test vectors longer than a page
  crypto: testmgr - Check all test vector lengths
  crypto: hifn_795x - fix __dev{init,exit} markings
  crypto: tcrypt - Do not exit on success in fips mode
  crypto: compress - Return produced bytes in crypto_{,de}compress_{update,final}
  hwrng: via_rng - Support VIA Nano hardware RNG on X86_64 builds
  hwrng: via_rng - Support VIA Nano hardware RNG
  hwrng: via_rng - The VIA Hardware RNG driver is for the CPU, not Chipset
  crypto: testmgr - Skip algs not flagged fips_allowed in fips mode
  crypto: testmgr - Mark algs allowed in fips mode
  crypto: testmgr - Add ctr(aes) test vectors
  crypto: testmgr - Dynamically allocate xbuf and axbuf
  crypto: testmgr - Print self-test pass notices in fips mode
  crypto: testmgr - Catch base cipher self-test failures in fips mode
  crypto: testmgr - Add ansi_cprng test vectors
  crypto: testmgr - Add infrastructure for ansi_cprng self-tests
  crypto: testmgr - Add self-tests for rfc4309(ccm(aes))
  crypto: testmgr - Handle AEAD test vectors expected to fail verification
  ...

1 files changed, 14 insertions, 1 deletions

diff --git a/drivers/char/hw_random/via-rng.c b/drivers/char/hw_random/via-rng.c
index 4e9573c1d39e..794aacb715c1 100644
--- a/drivers/char/hw_random/via-rng.c
+++ b/drivers/char/hw_random/via-rng.c
@@ -132,6 +132,19 @@ static int via_rng_init(struct hwrng *rng)
 	struct cpuinfo_x86 *c = &cpu_data(0);
 	u32 lo, hi, old_lo;
 
+	/* VIA Nano CPUs don't have the MSR_VIA_RNG anymore.  The 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 (!cpu_has_xstore_enabled) {
+			printk(KERN_ERR PFX "can't enable hardware RNG "
+				"if XSTORE is not enabled\n");
+			return -ENODEV;
+		}
+		return 0;
+	}
+
 	/* Control the RNG via MSR.  Tread lightly and pay very close
 	 * close attention to values written, as the reserved fields
 	 * are documented to be "undefined and unpredictable"; but it
@@ -205,5 +218,5 @@ static void __exit mod_exit(void)
 module_init(mod_init);
 module_exit(mod_exit);
 
-MODULE_DESCRIPTION("H/W RNG driver for VIA chipsets");
+MODULE_DESCRIPTION("H/W RNG driver for VIA CPU with PadLock");
 MODULE_LICENSE("GPL");