From: "Michael S. Tsirkin" <mst@redhat.com>
To: netdev@vger.kernel.org,
virtualization@lists.linux-foundation.org, kvm@vger.kernel.org,
linux-kernel@vger.kernel.org
Subject: [PATCH 0/2] vhost: a kernel-level virtio server
Date: Mon, 10 Aug 2009 21:51:35 +0300 [thread overview]
Message-ID: <20090810185135.GA13924@redhat.com> (raw)
This implements vhost: a kernel-level backend for virtio,
The main motivation for this work is to reduce virtualization
overhead for virtio by removing system calls on data path,
without guest changes. For virtio-net, this removes up to
4 system calls per packet: vm exit for kick, reentry for kick,
iothread wakeup for packet, interrupt injection for packet.
Some more detailed description attached to the patch itself.
The patches are against 2.6.31-rc4. I'd like them to go into linux-next
and down the road 2.6.32 if possible. Please comment.
Userspace bits using this driver will be posted to kvm@vger shortly.
Michael S. Tsirkin (2):
export cpu_tlbstate to modules
vhost_net: a kernel-level virtio server
MAINTAINERS | 10 +
arch/x86/kvm/Kconfig | 1 +
arch/x86/mm/tlb.c | 1 +
drivers/Makefile | 1 +
drivers/block/virtio_blk.c | 3 +
drivers/vhost/Kconfig | 11 +
drivers/vhost/Makefile | 2 +
drivers/vhost/net.c | 462 ++++++++++++++++++++++++++++++
drivers/vhost/vhost.c | 663 ++++++++++++++++++++++++++++++++++++++++++++
drivers/vhost/vhost.h | 108 +++++++
include/linux/Kbuild | 1 +
include/linux/miscdevice.h | 1 +
include/linux/vhost.h | 100 +++++++
13 files changed, 1364 insertions(+), 0 deletions(-)
create mode 100644 drivers/vhost/Kconfig
create mode 100644 drivers/vhost/Makefile
create mode 100644 drivers/vhost/net.c
create mode 100644 drivers/vhost/vhost.c
create mode 100644 drivers/vhost/vhost.h
create mode 100644 include/linux/vhost.h
reply other threads:[~2009-08-10 18:51 UTC|newest]
Thread overview: [no followups] expand[flat|nested] mbox.gz Atom feed
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20090810185135.GA13924@redhat.com \
--to=mst@redhat.com \
--cc=kvm@vger.kernel.org \
--cc=linux-kernel@vger.kernel.org \
--cc=netdev@vger.kernel.org \
--cc=virtualization@lists.linux-foundation.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).