Date: Fri, 09 Jun 2000 13:14:35 -0400 From: "Jeroen C. van Gelderen" <jeroen@vangelderen.org> To: Luoqi Chen <luoqi@watermarkgroup.com> Cc: current@FreeBSD.ORG, emulation@FreeBSD.ORG Subject: Re: VMware detection code in boot loader Message-ID: <394125FB.964917F7@vangelderen.org> References: <200006091527.e59FRYb10540@lor.watermarkgroup.com>
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Luoqi Chen wrote:
>
> Would anyone object if I add a ficl word to detect whether we're booting
> from a vmware virtual machine? I find it extremely useful when I'm running
> FreeBSD as a guest under NT. Because it is a dual cpu box, I can't use a
> single kernel to boot both directly or inside the virtual machine. With this
> new word, I can determine which kernel to use in the loader script, saving
> me the trouble to unload and reload a new kernel each time I reboot.
>
> Here's the patch to the boot loader,
>
> Index: boot/ficl/ficl.h
> ===================================================================
> RCS file: /home/ncvs/src/sys/boot/ficl/ficl.h,v
> retrieving revision 1.14
> diff -u -r1.14 ficl.h
> --- boot/ficl/ficl.h 2000/06/01 18:10:43 1.14
> +++ boot/ficl/ficl.h 2000/06/07 18:18:38
> @@ -860,6 +860,7 @@
> #if defined(__i386__) && !defined(TESTMAIN)
> extern void ficlOutb(FICL_VM *pVM);
> extern void ficlInb(FICL_VM *pVM);
> +extern void vmware(FICL_VM *pVM);
I'm not sure it is a good idea to name this variable VMWare as
that is implementation specific. It may be better to have a var
named 'emulation' set to 'none' or 'vmware' or 'bochs' or ...
Just my EC 0.02,
Jeroen
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