[Bug 20098] Wine fails to run my Kernel Mode Driver in Kernel Mode

[wine-bugs at winehq.org]

http://bugs.winehq.org/show_bug.cgi?id=20098





--- Comment #7 from red-ray <ray at pobox.co.uk>  2009-09-22 05:43:08 ---
(In reply to comment #6)
Thank you for your reply.  How much detial do you need to know, is this enough
?
1) get the thread affinity, so you know which CPU to read
2) ensure the appropiate /dev/cpu/<n>/msr exists, create with mknod() is needed
3) open the device for read
4) get the value of ECX and use that to position (SEEK_SET), needs to use
_lseeki64() as could well be MSR 0xC0000080
5) read 8 bytes
6) close device
7) is read failed pass exception back (my code will catch this)
8) store the low order 4 bytes in EAX
9) store the high order 4 bytes in EDX
10) continue execution
11) on wine exit it's probably a good idea to remove any mknod created devices
12) it might be worth leaving the MSR devices open and closing them on exit
13) SIV will read a few MSRs from ALL the CPUs at regular 1 or 2 second
intervals so it would be wise to leave ALL the MSR devices open
14) I looked in http://www.intel.com/Assets/PDF/manual/253667.pdf for detials
of the RDMSR instruction operation.
15) Would you plan to just do the fixup just for "Kernel Drivers" ?  If
initially you did it for all I will hapilly write and supply source of a
Windows Test program.  I am also happy to implement an command similar to:
siv -save=[wine-msrs]=stdout
which would actually use my driver to read a standard set of MSRs and report
the results.  If you would like me to write both a driver and test program and
give you the source this might be possible, but I doubt if I could port it to
the Wine build environment.

-- 
Configure bugmail: http://bugs.winehq.org/userprefs.cgi?tab=email
Do not reply to this email, post in Bugzilla using the
above URL to reply.
------- You are receiving this mail because: -------
You are watching all bug changes.