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basic KASAN support for Xen PV domains

From:  Sergey Dyasli <sergey.dyasli-AT-citrix.com>
To:  <xen-devel-AT-lists.xen.org>, <kasan-dev-AT-googlegroups.com>, <linux-mm-AT-kvack.org>, <linux-kernel-AT-vger.kernel.org>
Subject:  [PATCH v3 0/4] basic KASAN support for Xen PV domains
Date:  Fri, 7 Feb 2020 14:26:48 +0000
Message-ID:  <20200207142652.670-1-sergey.dyasli@citrix.com>
Cc:  Andrey Ryabinin <aryabinin-AT-virtuozzo.com>, Alexander Potapenko <glider-AT-google.com>, Dmitry Vyukov <dvyukov-AT-google.com>, Boris Ostrovsky <boris.ostrovsky-AT-oracle.com>, Juergen Gross <jgross-AT-suse.com>, "Stefano Stabellini" <sstabellini-AT-kernel.org>, George Dunlap <george.dunlap-AT-citrix.com>, Ross Lagerwall <ross.lagerwall-AT-citrix.com>, Andrew Morton <akpm-AT-linux-foundation.org>, Sergey Dyasli <sergey.dyasli-AT-citrix.com>
Archive-link:  Article

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.

Sergey Dyasli (2):
  kasan: introduce set_pmd_early_shadow()
  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

 arch/x86/mm/kasan_init_64.c       | 10 +++++-
 arch/x86/xen/Makefile             |  7 ++++
 arch/x86/xen/enlighten_pv.c       |  3 ++
 arch/x86/xen/mmu_pv.c             | 43 ++++++++++++++++++++++
 drivers/net/xen-netback/common.h  |  2 +-
 drivers/net/xen-netback/netback.c | 60 +++++++++++++++++++++++++------
 drivers/xen/Makefile              |  2 ++
 drivers/xen/grant-table.c         |  5 ++-
 include/linux/kasan.h             |  2 ++
 include/xen/xen-ops.h             | 10 ++++++
 lib/Kconfig.kasan                 |  3 +-
 mm/kasan/init.c                   | 32 ++++++++++++-----
 12 files changed, 156 insertions(+), 23 deletions(-)

-- 
2.17.1




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