Re: [PATCH RESEND] hwrng: core - don't pass stack allocated buffer to rng->read()

2016-10-21 Thread Richard W.M. Jones
On Fri, Oct 21, 2016 at 02:04:27PM -0700, Andy Lutomirski wrote: > https://git.kernel.org/cgit/linux/kernel/git/herbert/cryptodev-2.6.git/commit/?id=6d4952d9d9d4dc2bb9c0255d95a09405a1e958f7 I have tested this one, and it also fixes the bug I was seeing. Thanks Laszlo as well for his fix, and sorr

[PATCH v3] crypto: Add a flag allowing the self-tests to be disabled at runtime.

2016-05-03 Thread Richard W.M. Jones
Running self-tests for a short-lived KVM VM takes 28ms on my laptop. This commit adds a flag 'cryptomgr.notests' which allows them to be disabled. However if fips=1 as well, we ignore this flag as FIPS mode mandates that the self-tests are run. Signed-off-by: Richard

[PATCH v3] crypto: Add a flag allowing the self-tests to be disabled at runtime.

2016-05-03 Thread Richard W.M. Jones
v2 -> v3: - Ignore the flag if FIPS mode is enabled. v1 -> v2: - Use printk_once. Because the serial console is so slow, printing the message multiple times actually consumed about 6ms extra later on during the boot. - - - I'm trying to reduce the time taken in the kernel in initcalls

Re: [PATCH] crypto: Add a flag allowing the self-tests to be disabled at runtime.

2016-04-29 Thread Richard W.M. Jones
On Fri, Apr 29, 2016 at 12:59:57PM +0200, Stephan Mueller wrote: > Am Freitag, 29. April 2016, 11:07:43 schrieb Richard W.M. Jones: > > Hi Richard, [...] > > + if (notests) { > > What about if (!fips_enabled && notests) ? > > I am not sure whether the ker

[PATCH v2] crypto: Add a flag allowing the self-tests to be disabled at runtime.

2016-04-29 Thread Richard W.M. Jones
Running self-tests for a short-lived KVM VM takes 28ms on my laptop. This commit adds a flag 'cryptomgr.notests' which allows them to be disabled. Signed-off-by: Richard W.M. Jones --- Documentation/kernel-parameters.txt | 3 +++ crypto/testmgr.c| 9

[PATCH v2] crypto: Add a flag allowing the self-tests to be disabled at runtime.

2016-04-29 Thread Richard W.M. Jones
v1 -> v2: - Use printk_once. Because the serial console is so slow, printing the message multiple times consumed about 6ms extra later on in the boot. Printing it only once is both neater and avoids this extra overhead. Rich. - - - I'm trying to reduce the time taken in the kernel in initcal

[PATCH] crypto: Add a flag allowing the self-tests to be disabled at runtime.

2016-04-29 Thread Richard W.M. Jones
I'm trying to reduce the time taken in the kernel in initcalls, with my aim being to reduce the current ~700ms spent in initcalls before userspace, down to something like 100ms. All times on my Broadwell-U laptop, under virtualization. The purpose of this is to be able to launch VMs around contai

[PATCH] crypto: Add a flag allowing the self-tests to be disabled at runtime.

2016-04-29 Thread Richard W.M. Jones
Running self-tests for a short-lived KVM VM takes 28ms on my laptop. This commit adds a flag 'cryptomgr.notests' which allows them to be disabled. Signed-off-by: Richard W.M. Jones --- Documentation/kernel-parameters.txt | 3 +++ crypto/testmgr.c| 9