Messages in this thread | | | Subject | Re: vesafb on archs !ia32 [Re: Calling VESA BIOS routines from kernel?] | Date | Mon, 13 Dec 1999 00:35:12 +0000 (GMT) | From | Alan Cox <> |
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> The "entire x86 vm inside the kernel" is the approach FreeBSD took. It > seems to work well. This has the nice side benefit that all the VESA > functions are available in protected mode, not just real mode.
I'd definitely prfer the vm to be running in user mode via callbacks. That keeps the 8086 vm handling a lot cleaner, and also means it doesnt blow your machine to bits every time you meet a bios bug. Having a single vm doing all the jobs makes sense however, as it keeps the bios single threaded in its happy virtual world
Alan
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