linux-kernel - [RFC PATCH 0/3] basic KASAN support for Xen PV domains

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Date:   Tue, 17 Dec 2019 14:08:01 +0000
From:   Sergey Dyasli <sergey.dyasli@...rix.com>
To:     <xen-devel@...ts.xen.org>, <kasan-dev@...glegroups.com>,
        <linux-kernel@...r.kernel.org>
CC:     Andrey Ryabinin <aryabinin@...tuozzo.com>,
        Alexander Potapenko <glider@...gle.com>,
        Dmitry Vyukov <dvyukov@...gle.com>,
        Boris Ostrovsky <boris.ostrovsky@...cle.com>,
        Juergen Gross <jgross@...e.com>,
        "Stefano Stabellini" <sstabellini@...nel.org>,
        George Dunlap <george.dunlap@...rix.com>,
        Ross Lagerwall <ross.lagerwall@...rix.com>,
        Sergey Dyasli <sergey.dyasli@...rix.com>
Subject: [RFC PATCH 0/3] basic KASAN support for Xen PV domains

This series allows to boot and run Xen PV kernels (Dom0 and DomU) with
CONFIG_KASAN=y. It has been used internally for some time now with good
results for finding memory corruption issues in Dom0 kernel.

Only Outline instrumentation is supported at the moment.

Patch 1 is of RFC quality
Patches 2-3 are independent and quite self-contained.

Sergey Dyasli (1):
  x86/xen: add basic KASAN support for PV kernel

Ross Lagerwall (2):
  xen: teach KASAN about grant tables
  xen/netback: Fix grant copy across page boundary with KASAN

 arch/x86/mm/init.c                | 14 ++++++++
 arch/x86/mm/kasan_init_64.c       | 28 ++++++++++++++++
 arch/x86/xen/Makefile             |  7 ++++
 arch/x86/xen/enlighten_pv.c       |  3 ++
 arch/x86/xen/mmu_pv.c             | 13 ++++++--
 arch/x86/xen/multicalls.c         | 10 ++++++
 drivers/net/xen-netback/common.h  |  2 +-
 drivers/net/xen-netback/netback.c | 55 ++++++++++++++++++++++++-------
 drivers/xen/Makefile              |  2 ++
 drivers/xen/grant-table.c         |  5 ++-
 kernel/Makefile                   |  2 ++
 lib/Kconfig.kasan                 |  3 +-
 12 files changed, 128 insertions(+), 16 deletions(-)

-- 
2.17.1