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From: "Zeng, Star" <star.zeng@intel.com>
To: Michael Zimmermann <sigmaepsilon92@gmail.com>,
	"edk2-devel@lists.01.org" <edk2-devel@ml01.01.org>
Cc: "Kinney, Michael D" <michael.d.kinney@intel.com>,
	"Rothman, Michael A" <michael.a.rothman@intel.com>,
	"Zeng, Star" <star.zeng@intel.com>
Subject: Re: TPL of RegisterKeyNotify
Date: Mon, 12 Dec 2016 01:07:01 +0000	[thread overview]
Message-ID: <0C09AFA07DD0434D9E2A0C6AEB0483103B7A9429@SHSMSX104.ccr.corp.intel.com> (raw)
In-Reply-To: <CAN9vWDL-JSeTNc-7j5sdagbgUk2-RXaNT423SSMJ0bZ_CZ=AvA@mail.gmail.com>

Michael,

There is already an approved UEFI mantis https://mantis.uefi.org/mantis/view.php?id=1634 that has the clarification to the TPL of KeyNotify function.
Currently KB drivers just call the KeyNotify functions in TimerEvent that has TPL_NOTIFY, we are updating code to make the KeyNotify functions called in TPL_CALLBACK to the new mantis.


Thanks,
Star
-----Original Message-----
From: edk2-devel [mailto:edk2-devel-bounces@lists.01.org] On Behalf Of Michael Zimmermann
Sent: Friday, December 9, 2016 8:09 PM
To: edk2-devel@lists.01.org <edk2-devel@ml01.01.org>
Subject: [edk2] TPL of RegisterKeyNotify

I couldn't find any information in the spec about the TPL which notify functions will/should be called with.
When I do File IO from within such an handler DxeCore tells me that 'RaiseTpl with OldTpl(0x10) > NewTpl(0x8)' which translated means TPL_NOTIFY > TPL_CALLBACK.

That probably means that it's called using TPL_NOTIFY, but is that defined somewhere?
Do I have to raise another (TPL_CALLBACK) event to be able to perform my File IO operation to solve this?

Thanks
Michael
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  reply	other threads:[~2016-12-12  1:07 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2016-12-09 12:09 TPL of RegisterKeyNotify Michael Zimmermann
2016-12-12  1:07 ` Zeng, Star [this message]
2017-01-10 14:48   ` Michael Zimmermann
2017-01-10 17:23     ` Andrew Fish

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