lists  /  announce  owl-users  owl-dev  john-users  john-dev  passwdqc-users  yescrypt  popa3d-users  /  oss-security  kernel-hardening  musl  sabotage  tlsify  passwords  /  crypt-dev  xvendor  /  Bugtraq  Full-Disclosure  linux-kernel  linux-netdev  linux-ext4  PHC 
Open Source and information security mailing list archives
Hash Suite: Windows password security audit tool. GUI, reports in PDF.
[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]
Date:	Sat, 22 Dec 2007 21:00:30 -0800 (PST)
From:	Linus Torvalds <>
To:	Jeff Garzik <>
cc:	Arjan van de Ven <>,,,,
	Benjamin Herrenschmidt <>
Subject: Re: [patch] Make MMCONFIG space (extended PCI config space) a driver
 opt-in issue

On Sat, 22 Dec 2007, Jeff Garzik wrote:
> But regardless of problems, enabling should be done globally, not per
> device...

I'm ok with trying the "globally" idea, but it has to be "globally but 
only if absolutely required".

And quite frankly, how do you tell whether it's absolutely required or 

I have an idea: the drivers that really need it will do a "please enable 
MMCONFIG, because I will need it" thing?


And then, since we *need* such a "pci_enable_mmconfig()" call anyway, why 
not let the driver give which device it controls too, so that we can print 
out the information (in case the machine then hangs immediately 
afterwards), and perhaps - if it is shown to help - only do the MMCONFIG 
cycles for that particular device?

Sounds like a plan?

To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to
More majordomo info at
Please read the FAQ at

Powered by blists - more mailing lists