| From: |
| Stanislav Kinsburskii <staskins-AT-amazon.com> |
| To: |
| unlisted-recipients:; (no To-header on input) |
| Subject: |
| [PATCH 0/3] Introduce Xen fault injection facility |
| Date: |
| Fri, 20 Apr 2018 10:47:20 +0000 |
| Message-ID: |
| <20180420104603.17823.31095.stgit@dev-dsk-staskins-1a-ca5afbf2.eu-west-1.amazon.com> |
| Cc: |
| <jakub.kicinski-AT-netronome.com>, <hpa-AT-zytor.com>, <mcroce-AT-redhat.com>, <staskins-AT-amazon.com>, <tglx-AT-linutronix.de>, <ggarcia-AT-abra.uab.cat>, <daniel-AT-iogearbox.net>, <x86-AT-kernel.org>, <mingo-AT-redhat.com>, <xen-devel-AT-lists.xenproject.org>, <axboe-AT-kernel.dk>, <konrad.wilk-AT-oracle.com>, <amir.jer.levy-AT-intel.com>, <paul.durrant-AT-citrix.com>, <stefanha-AT-redhat.com>, <dsa-AT-cumulusnetworks.com>, <boris.ostrovsky-AT-oracle.com>, <jgross-AT-suse.com>, <linux-block-AT-vger.kernel.org>, <wei.liu2-AT-citrix.com>, <netdev-AT-vger.kernel.org>, <linux-kernel-AT-vger.kernel.org>, <davem-AT-davemloft.net>, <dwmw-AT-amazon.co.uk>, <roger.pau-AT-citrix.com> |
| Archive-link: |
| Article |
This series adds a facility, which can be used to instrument Xen code with
fault injections.
It is based "Fault injection capabilities infrastructure" described here:
- Documentation/fault-injection/fault-injection.txt
First patch adds a generic facility to use anywhere in Xen.
When using it all the fault injection user land control directories (if
any) will appear here:
- /sys/kernel/debug/xen/fault_inject/
To distinguish with generic (or core) Xen fault injections, next two
patches add additional directories to the root path above for blkback and
netback drivers respectively:
- /sys/kernel/debug/xen/fault_inject/xen-blkback/
- /sys/kernel/debug/xen/fault_inject/xen-netback/
---
Stanislav Kinsburskii (3):
xen: add generic fault injection facility
xen netback: add fault injection facility
xen blkback: add fault injection facility
arch/x86/xen/Kconfig | 7 ++
arch/x86/xen/Makefile | 1
arch/x86/xen/fault_inject.c | 109 +++++++++++++++++++++++++++++
drivers/block/Kconfig | 7 ++
drivers/block/xen-blkback/Makefile | 1
drivers/block/xen-blkback/blkback.c | 9 ++
drivers/block/xen-blkback/blkback_fi.c | 116 +++++++++++++++++++++++++++++++
drivers/block/xen-blkback/blkback_fi.h | 37 ++++++++++
drivers/block/xen-blkback/common.h | 3 +
drivers/block/xen-blkback/xenbus.c | 5 +
drivers/net/Kconfig | 8 ++
drivers/net/xen-netback/Makefile | 1
drivers/net/xen-netback/common.h | 3 +
drivers/net/xen-netback/netback.c | 3 +
drivers/net/xen-netback/netback_fi.c | 119 ++++++++++++++++++++++++++++++++
drivers/net/xen-netback/netback_fi.h | 35 +++++++++
drivers/net/xen-netback/xenbus.c | 6 ++
include/xen/fault_inject.h | 45 ++++++++++++
18 files changed, 515 insertions(+)
create mode 100644 arch/x86/xen/fault_inject.c
create mode 100644 drivers/block/xen-blkback/blkback_fi.c
create mode 100644 drivers/block/xen-blkback/blkback_fi.h
create mode 100644 drivers/net/xen-netback/netback_fi.c
create mode 100644 drivers/net/xen-netback/netback_fi.h
create mode 100644 include/xen/fault_inject.h
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