lkml.org 
[lkml]   [2008]   [Sep]   [25]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
SubjectRe: [PATCH 1/2] VMware detection support for x86 and x86-64
From
Date
On Thu, 2008-09-25 at 14:59 -0700, H. Peter Anvin wrote:

> However, it is the particular use of this for detection use that is
> utterly damning. Using random I/O port probes for hardware detect
> should have disappeared in the early 1990's, and it's really disturbing
> that virtualization vendors -- not just VMWare -- are, in effect,
> re-making all the mistakes hardware vendors did in the 1980's.

It's not disturbing, it's expected. Re-using old broken solutions happens all the time, they can be perfectly valid in some contexts. The problem is that they tend to live on and evolve into a larger context where they break again. Surely we can do better, but how to do that isn't always clear-cut. DMI is a pretty good standard for this, but it still doesn't solve the problem in all contexts (userspace apps).

Zach



\
 
 \ /
  Last update: 2008-09-26 00:25    [from the cache]
©2003-2011 Jasper Spaans