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Accessing APIC from KEXT

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Accessing APIC from KEXT

Subject: Accessing APIC from KEXT
From: "Arvind Dalvi" <email@hidden>
Date: Mon, 26 Feb 2007 01:51:56 +0530

Hello,

If i need to access APIC registers from KEXT, do i need to develop an
IOKit driver, or a simple KEXT with inline assembly will do ?

If i have to do in Windows, i have to write a basic device driver,
implement an IOCTL, pack few ASM statements, or more better, use
READ_REGISTER_xxx or READ_PORT_xxx function.

So does IOKit or KEXT KPI offers any feature of similar nature ?

Thanks,
a.d.

P.S.
The obvious question here would be why the reason to access APIC or
device memory-mapped registers ?.
I am currently designing a small HWINFO software, which could provide
me with the device information.
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