linux-kernel - [PATCH 0/2 v2] x86: kvm: global clock updates

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [thread-next>] [day] [month] [year] [list]

Date:	Fri, 28 Feb 2014 12:52:53 +0100
From:	Andrew Jones <drjones@...hat.com>
To:	kvm@...r.kernel.org, linux-kernel@...r.kernel.org
Cc:	mtosatti@...hat.com, pbonzini@...hat.com
Subject: [PATCH 0/2 v2] x86: kvm: global clock updates

This patch series addresses two issues with global clock updates.
The first fixes a bug found on hosts that have a tsc marked as
unstable. As global clock updates get triggered on every vcpu load
in these cases, guests with a large number of vcpus have their
progress nearly halted. The fix for that bug should also go to
stable. The second patch in this series ensures that NTP corrections
on the host, as well as on guests with all vcpus pinned, will be
propagated periodically. That patch improves things, but doesn't
fix a bug, thus it can be merged at a later time than the first.
I've posted them together as a series, as the second one builds
on the first.

Andrew Jones (2):
  x86: kvm: rate-limit global clock updates
  x86: kvm: introduce periodic global clock updates

 arch/x86/include/asm/kvm_host.h |  2 +
 arch/x86/kvm/x86.c              | 92 +++++++++++++++++++++++++++++++++++++++--
 2 files changed, 90 insertions(+), 4 deletions(-)

-- 
1.8.1.4

--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/