lkml.org 
[lkml]   [2022]   [Mar]   [31]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
From
Subject[GIT PULL] random number generator fixes for 5.18-rc1
Date
Hi Linus,

Please pull 5 small patches for 5.18-rc1:

- If a hardware random number generator passes a sufficiently large chunk of
entropy to random.c during early boot, we now skip the "fast_init" business
and let it initialize the RNG. This makes CONFIG_RANDOM_TRUST_BOOTLOADER=y
actually useful.

- We already have the command line `random.trust_cpu=0/1` option for RDRAND,
which let distros enable CONFIG_RANDOM_TRUST_CPU=y while placating concerns
of more paranoid users. Now we add `random.trust_bootloader=0/1` so that
distros can similarly enable CONFIG_RANDOM_TRUST_BOOTLOADER=y.

- Re-add a comment that got removed by accident in the recent revert.

- Add the spec-compliant ACPI CID for vmgenid, which Microsoft added to the
vmgenid spec at Ard's request during earlier review.

- Restore build-time randomness via the latent entropy plugin, which was lost
when we transitioned to using a hash function.

Thanks,
Jason

PS: I noticed that for my previous pull request, in your merge commit, you
replaced my numbered list with a bulleted list, and even went through the
trouble of adjusting the irregular spacing caused by numbers >9. Impressed by
this wild attention to detail, and imagining you clickity-clacking away in
uemacs, I'll stick to hyphen-bullets now.


The following changes since commit 34af78c4e616c359ed428d79fe4758a35d2c5473:

Merge tag 'iommu-updates-v5.18' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu (2022-03-24 19:48:57 -0700)

are available in the Git repository at:

https://git.kernel.org/pub/scm/linux/kernel/git/crng/random.git tags/random-5.18-rc1-for-linus

for you to fetch changes up to 1754abb3e7583c570666fa1e1ee5b317e88c89a0:

random: mix build-time latent entropy into pool at init (2022-03-31 16:43:27 -0400)

----------------------------------------------------------------
Random number generator fixes for Linux 5.18-rc1.

----------------------------------------------------------------
Jason A. Donenfeld (4):
random: skip fast_init if hwrng provides large chunk of entropy
random: treat bootloader trust toggle the same way as cpu trust toggle
random: re-add removed comment about get_random_{u32,u64} reseeding
random: mix build-time latent entropy into pool at init

Michael Kelley (1):
virt: vmgenid: recognize new CID added by Hyper-V

Documentation/admin-guide/kernel-parameters.txt | 6 ++++++
drivers/char/Kconfig | 3 ++-
drivers/char/random.c | 22 +++++++++++++++++-----
drivers/virt/vmgenid.c | 1 +
4 files changed, 26 insertions(+), 6 deletions(-)

\
 
 \ /
  Last update: 2022-03-31 23:24    [W:0.051 / U:1.640 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site