How-To Write a Slic-OEM driver x64 ( educational purpose only )

Well that was what I expected. It won't work without some "modification" on x86 but thanks for your info.

 

I compile it to 32bit and test in my computer.
OS:windows 7 Ultimate
It work well.
But sometime (after update) windows show It's not genuine (use SERVICE_BOOT_START).
And I restart windows it tell genuine .
thanks for sharing.

 

Try SERVICE_SYSTEM_START instead.
But well, good to know that it works in x86 as well.

If it does not work, we'll probably need to change the source code

 

The tables listed inside the R/XSDT aren't always in order (highest address last) so you shouldn't use the last pointer to work out where to store the SLIC. Look for the highest address as you loop through and use that one.

Also, appending a new table address to the R/XSDT isn't always possible because the next table can start immediately after it. Sometimes a bit of shuffling is needed, but that's when it can start to get messy

I'll be able to help more at weekend when I have had a chance to play with it.

 

THANKS, I'll fix that issue

 

Is It Possible To sign The Files With Extension .sys with This One......

 

This one refers to.... what? Btw look at my first post, I included a guide for manual driver signing ( x64 ).

 

No I Need For ( x86 ),Will It work If I Do it In 32 Bit Too..

 

Re-Purpose the Royal.inf

Will royal.inf work as my template, or does it require a different method. Was thinking to push the driver into the boot kernel the same way. What do you think ?

Stolen from royal.inf

Code:

[OemBiosDevice.ServiceInstallSection]
DisplayName    = "SLIC OEM BIOS Extension"
ServiceType    = 1;SERVICE_KERNEL_DRIVER
StartType      = 0;SERVICE_BOOT_START
ErrorControl   = 0;SERVICE_ERROR_IGNORE
ServiceBinary  = %12%\%filename%
LoadOrderGroup = "Boot Bus Extender"

[Strings]
Provider= "SLIC OEM Provider"
StdMfg= "SLIC OEM Manufacturer"
DispName= "SLIC OEM BIOS Emulation Driver"
diskid= "DISK0"
filename= "slic86.sys"
device_desc= "SLIC OEM BIOS Extension Device"

Where do we get the GUID from the slic86.sys. Does It change on each compile, or is it persistent.

 

It works in Vmware ( x86 - 1.1.3 ).
Everest Acpi-Report the same as 1.1.2
Acpi(Increased four unknown table and two slic table)

 

That's a known bug of the duplicated slic tables, fix is under construction.
Acpi increase is fixed in actual 1.1.3 ( checked it in everest under VirtualBox )
Btw.. thanks for the feedback

@Machiavelli: maybe, but I would recommend to use the .inf on a virtual machine

 

I compile 1.1.3 x86 and test in my computer.
OS:windows 7 Ultimate
It not work (I think there is no free space for PrPatchSdtPtr).

PS: 1.1.2 x86 work well.

 

Thx for the info, but for now I'm facing another problem. Somehow RtlCompareMemory causes a random driver freeze bug on my pc although it works in VirtualBox...

 

Thanks a lot!!

 

secr9tos, thanks for share it with full source code.

 

I've updated the driver to a new version.

Updates in the future:

* Digital signature
* Installer (.inf )

 

version 1.3.1 x86.
I have same proplem with 1.1.3. No SLIC add (no free space for SdPatchSdtTable).
See attached files.
Thanks for your share.

 

Well that's a serious problem. For now I don't know how to fix this issue but I'll think abou it.

Btw.. did you use one of the loaders so far? Would be interesting to see how they deal with this issue.

 

Now I use wow7.0.1b loader. It overwrite RSDT 2rd (BOOT) with SLIC.
Other computer I mod bios, it insert 1 at last item.
Previous version 1.1.2, it insert and overwrite DSDT.