Re: [tip:x86/setup] x86, setup: "glove box" BIOS calls -- infrastructure

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Subject: Re: [tip:x86/setup] x86, setup: "glove box" BIOS calls -- infrastructure
From: "H. Peter Anvin" <hpa@xxxxxxxxxxxxxxx>
Date: Mon, 13 Apr 2009 12:08:45 -0700
Cc: "H. Peter Anvin" <hpa@xxxxxxxxx>, Ingo Molnar <mingo@xxxxxxx>, Avi Kivity <avi@xxxxxxxxxx>, Linus Torvalds <torvalds@xxxxxxxxxxxxxxxxxxxx>, Pavel Machek <pavel@xxxxxx>, mingo@xxxxxxxxxx, linux-kernel@xxxxxxxxxxxxxxx, tglx@xxxxxxxxxxxxx, rjw@xxxxxxx, linux-tip-commits@xxxxxxxxxxxxxxx
In-reply-to: <9b2b86520904131134y26f508ffr2bc0303eff203a25@xxxxxxxxxxxxxx>
Organization: Intel Open Source Technology Center
References: <20090410103934.GA21506@xxxxxxx> <20090410113824.GA18823@xxxxxxxxxx> <49E0C1AB.2050608@xxxxxxxxxx> <49E17A6E.5000104@xxxxxxxxx> <alpine.LFD.2.00.0904120754240.4583@xxxxxxxxxxxxxxxxxxxxx> <20090412163356.GA2392@xxxxxxx> <49E2398A.3050405@xxxxxxxxxx> <20090413041625.GF11652@xxxxxxx> <20090413042459.GA6479@xxxxxxx> <49E367E8.7080202@xxxxxxxxx> <9b2b86520904131134y26f508ffr2bc0303eff203a25@xxxxxxxxxxxxxx>
User-agent: Thunderbird 2.0.0.21 (X11/20090320)

Alan Jenkins wrote:

IIRC, the first person to report the issue found that it triggered
when hotplugging a HDMI cable.

Oh, that's right. Either we were invoking the video BIOS from thekernel (which we do actually do sometimes) -- in which case we havecontrol over when it happens -- or there is commingling of the videoBIOS and mainboard BIOS combined with SMM crap. Joy.


	-hpa

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Follow-Ups:
- Re: [tip:x86/setup] x86, setup: "glove box" BIOS calls -- infrastructure
  - From: Ingo Molnar

References:
- Re: [tip:x86/setup] x86, setup: "glove box" BIOS calls -- infrastructure
  - From: Ingo Molnar
- Re: [tip:x86/setup] x86, setup: "glove box" BIOS calls -- infrastructure
  - From: Pavel Machek
- Re: [tip:x86/setup] x86, setup: "glove box" BIOS calls -- infrastructure
  - From: Avi Kivity
- Re: [tip:x86/setup] x86, setup: "glove box" BIOS calls -- infrastructure
  - From: H. Peter Anvin
- Re: [tip:x86/setup] x86, setup: "glove box" BIOS calls -- infrastructure
  - From: Linus Torvalds
- Re: [tip:x86/setup] x86, setup: "glove box" BIOS calls -- infrastructure
  - From: Ingo Molnar
- Re: [tip:x86/setup] x86, setup: "glove box" BIOS calls -- infrastructure
  - From: Avi Kivity
- Re: [tip:x86/setup] x86, setup: "glove box" BIOS calls -- infrastructure
  - From: Ingo Molnar
- Re: [tip:x86/setup] x86, setup: "glove box" BIOS calls -- infrastructure
  - From: Ingo Molnar
- Re: [tip:x86/setup] x86, setup: "glove box" BIOS calls -- infrastructure
  - From: H. Peter Anvin
- Re: [tip:x86/setup] x86, setup: "glove box" BIOS calls -- infrastructure
  - From: Alan Jenkins

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