linux-kernel - Re: [PATCH] ACPI, APEI, Add APEI

lists.openwall.net		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 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite for Android: free password hash cracker in your pocket

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <20110617013442.GA30708@srcf.ucam.org>
Date:	Fri, 17 Jun 2011 02:34:42 +0100
From:	Matthew Garrett <mjg59@...f.ucam.org>
To:	Huang Ying <ying.huang@...el.com>
Cc:	Len Brown <lenb@...nel.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	Andi Kleen <andi@...stfloor.org>,
	"Luck, Tony" <tony.luck@...el.com>,
	"linux-acpi@...r.kernel.org" <linux-acpi@...r.kernel.org>
Subject: Re: [PATCH] ACPI, APEI, Add APEI _OSC support

On Fri, Jun 17, 2011 at 08:57:09AM +0800, Huang Ying wrote:
> On 06/16/2011 09:57 AM, Matthew Garrett wrote:
> > Yeah, this is going to be a problem. We have the HEST available at this 
> > point so we ought to be able to parse it, though. I'll take a look 
> > tomorrow.
> 
> We can check the HEST table before _OSC evaluating.  But it is much
> harder to check software part, because we have implemented GHES support
> (Generic Hardware Error Source, the handler of firmware first mode
> hardware error notification) as device driver and module.

If the kernel has been configured with support for the feature then I 
think we ought to be able to assume that the kernel will support it at 
runtime.

> So I think we can do that in 2 steps.  At first, we just enable WHEA
> UUID, because that is easier to do.  Then we find a way to implement
> "APEI bit" in generic _OSC call.  Do you think that is a good idea?

I'm fine with that, providing that GHES isn't disabled purely because 
the WHEA UUID call wasn't successful.

-- 
Matthew Garrett | mjg59@...f.ucam.org
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/