Date: Fri, 21 Mar 1997 16:04:00 -0800 From: Amancio Hasty <hasty@rah.star-gate.com> To: Anthony.Kimball@East.Sun.COM Cc: smp@csn.net, multimedia@freebsd.org Subject: Re: Continquous Memory vs Virtual Memory Message-ID: <199703220004.QAA03210@rah.star-gate.com> In-Reply-To: Your message of "Fri, 21 Mar 1997 17:04:27 CST." <199703212304.RAA27833@compound.east.sun.com>
next in thread | previous in thread | raw e-mail | index | archive | help
>From The Desk Of Tony Kimball : > Quoth Steve Passe on Fri, 21 March: > : [kernel memory protection violation of RISC engine programs > : implies need for kernel-level compiler] > > Are there any applications which care? If there are none, your > concerns are excessively zealous. > > Hi Tony, The answer is yes. We have applications which can load up into the driver any old memory address which they want. For instance, dtv passes to the driver the physical address of the frame buffer. Programs like dtv do PCI to PCI data transfer or in a case of a hacker exploit it can do PCI to kernel address space. Regards, Amancio
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?199703220004.QAA03210>