Re: BIOS calls on SMP systems

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From
Neil Bradley <neil@synthcom.com>
Date
30 Aug 1999 21:53:38
Subject
Re: BIOS calls on SMP systems
Message-ID
009c01bef36d$394ee850$076291c6@Engineering.retrocade.com

References to
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> Can someone familiar with the Intel MP spec clarify for me whether it's
> permissible for an AP to call the BIOS, or whether only the BSP may do
> this?

It depends upon what services of the BIOS you're looking to call. If it's
the standard INT services, only the BSP will be able to do it reliably. If
you're calling the PCI functions, then you're most likely safe. But it is
safe for the BSP to call BIOS even when the AP's aren't.

-->Neil



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