linux-kernel - [PATCH v2 0/7] Xen transport for 9pfs frontend driver

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]

Message-ID: <alpine.DEB.2.10.1703081557070.8160@sstabellini-ThinkPad-X260>
Date:   Wed, 8 Mar 2017 15:58:01 -0800 (PST)
From:   Stefano Stabellini <sstabellini@...nel.org>
To:     xen-devel@...ts.xenproject.org
cc:     linux-kernel@...r.kernel.org, sstabellini@...nel.org,
        konrad.wilk@...cle.com, boris.ostrovsky@...cle.com,
        jgross@...e.com, ericvh@...il.com, rminnich@...dia.gov,
        lucho@...kov.net, v9fs-developer@...ts.sourceforge.net
Subject: [PATCH v2 0/7] Xen transport for 9pfs frontend driver

Hi all,

This patch series implements a new transport for 9pfs, aimed at Xen
systems.

The transport is based on a traditional Xen frontend and backend drivers
pair. This patch series implements the frontend, which typically runs in
a regular unprivileged guest.

I also sent a series that implements the backend in userspace in QEMU,
which typically runs in Dom0 (but could also run in a another guest).

The frontend complies to the Xen transport for 9pfs specification
version 1, available here:

http://xenbits.xen.org/gitweb/?p=xen.git;a=blob_plain;f=docs/misc/9pfs.markdown;hb=HEAD


Changes in v2:
- use XEN_PAGE_SHIFT instead of PAGE_SHIFT
- remove unnecessary initializations
- fix error paths
- fix memory allocations for 64K kernels
- simplify p9_xen_create and p9_xen_close
- use virt_XXX barriers
- set status = REQ_STATUS_ERROR inside the p9_xen_response loop
- add in-code comments


Stefano Stabellini (7):
      xen: import new ring macros in ring.h
      xen: introduce the header file for the Xen 9pfs transport protocol
      xen/9pfs: introduce Xen 9pfs transport driver
      xen/9pfs: connect to the backend
      xen/9pfs: send requests to the backend
      xen/9pfs: receive responses
      xen/9pfs: build 9pfs Xen transport driver

 include/xen/interface/io/9pfs.h |  40 ++++
 include/xen/interface/io/ring.h | 131 +++++++++++
 net/9p/Kconfig                  |   8 +
 net/9p/Makefile                 |   4 +
 net/9p/trans_xen.c              | 466 ++++++++++++++++++++++++++++++++++++++++
 5 files changed, 649 insertions(+)
 create mode 100644 include/xen/interface/io/9pfs.h
 create mode 100644 net/9p/trans_xen.c


Cheers,

Stefano