[RFC v2 0/3] I/O Hook: Method for emulating h/w events

From: Rui Wang
Date: Thu Aug 01 2013 - 06:36:56 EST


Hi Bjorn,

In this v2, I made the following changes according to your suggestion:

1) The iohook driver is now built-in so we have alot fewer exported
symbols. But we still need to export two functions because the
loadable modules need to call into the I/O Hook.
2) Non-PCI part moved from drivers/pci into drivers/misc/iohook
3) It's now platform neutral. The PCI part should now work on all
platforms. The memory mapped I/O part can be easily extened later
to non-x86 platforms by modifying their part under arch/

I tested this new version on Westmere-EX. It worked as expected.

Regards,
Rui Wang
Intel Open Source Technology Center

Rui Wang (3):
I/O Hook: core functions and Register Override
I/O Hook: kernel interface to manage the hook
I/O Hook: sysfs interface to emulate h/w events

Documentation/PCI/iohook.txt | 282 ++++++++++
arch/Kconfig | 10 +
arch/x86/boot/compressed/Makefile | 1 +
arch/x86/include/asm/io.h | 57 ++-
arch/x86/vdso/Makefile | 2 +
drivers/misc/Makefile | 1 +
drivers/misc/iohook/Makefile | 1 +
drivers/misc/iohook/iohook.c | 1025 +++++++++++++++++++++++++++++++++++++
drivers/misc/iohook/iohook.h | 6 +
drivers/pci/access.c | 66 +++
include/linux/reg_ovrd.h | 51 ++
11 files changed, 1500 insertions(+), 2 deletions(-)
create mode 100644 Documentation/PCI/iohook.txt
create mode 100644 drivers/misc/iohook/Makefile
create mode 100644 drivers/misc/iohook/iohook.c
create mode 100644 drivers/misc/iohook/iohook.h
create mode 100644 include/linux/reg_ovrd.h

--
1.7.5.4

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