netdev - Re: [GIT PULL] AlacrityVM guest drivers for 2.6.33

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

Date:	Wed, 23 Dec 2009 20:50:52 +0100
From:	Andi Kleen <andi@...stfloor.org>
To:	"Ira W. Snyder" <iws@...o.caltech.edu>
Cc:	Gregory Haskins <gregory.haskins@...il.com>,
	Kyle Moffett <kyle@...fetthome.net>,
	Ingo Molnar <mingo@...e.hu>, Avi Kivity <avi@...hat.com>,
	kvm@...r.kernel.org, Andrew Morton <akpm@...ux-foundation.org>,
	torvalds@...ux-foundation.org,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	netdev@...r.kernel.org,
	"alacrityvm-devel@...ts.sourceforge.net" 
	<alacrityvm-devel@...ts.sourceforge.net>
Subject: Re: [GIT PULL] AlacrityVM guest drivers for 2.6.33

"Ira W. Snyder" <iws@...o.caltech.edu> writes:

> (You'll quickly find that you must use DMA to transfer data across PCI.
> AFAIK, CPU's cannot do burst accesses to the PCI bus. I get a 10+ times

AFAIK that's what write-combining on x86 does. DMA has other
advantages of course.

-Andi
-- 
ak@...ux.intel.com -- Speaking for myself only.
--
To unsubscribe from this list: send the line "unsubscribe netdev" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html