linux-kernel - Re: [PATCH] SVM: reliably detect if SVM was disabled by BIOS

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: Windows password security audit tool. GUI, reports in PDF.

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

Message-ID: <20070622093559.GA18450@amd.com>
Date:	Fri, 22 Jun 2007 11:35:59 +0200
From:	"Joerg Roedel" <joerg.roedel@....com>
To:	"Avi Kivity" <avi@...ranet.com>
cc:	kvm-devel@...ts.sourceforge.net, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] SVM: reliably detect if SVM was disabled by BIOS

On Fri, Jun 22, 2007 at 12:30:48PM +0300, Avi Kivity wrote:
> Joerg Roedel wrote:
> > From: Joerg Roedel <joerg.roedel@....com>
> >
> > This patch adds an implementation to the svm is_disabled function to
> > detect reliably if the BIOS disabled the SVM feature in the CPU. This
> > fixes the issues with kernel panics when loading the kvm-amd module on
> > machines where SVM is available but disabled.
> >
> >   
> 
> Applied; thanks.
> 
> Is this msr documented anywhere?  I assume it is implemented on all
> processors with svm?

Not in the public documentation yet. But it will be documented with one of
the next documentation updates. This MSR is implemented in all SVM
capable processors.

Regards,

Joerg

-- 
           |           AMD Saxony Limited Liability Company & Co. KG
 Operating |         Wilschdorfer Landstr. 101, 01109 Dresden, Germany
 System    |                  Register Court Dresden: HRA 4896
 Research  |              General Partner authorized to represent:
 Center    |             AMD Saxony LLC (Wilmington, Delaware, US)
           | General Manager of AMD Saxony LLC: Dr. Hans-R. Deppe, Thomas McCoy


-
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/