Comments on: Protecting memory from DMA http://rdist.root.org/2007/09/28/protecting-memory-from-dma/ Embedded security, crypto, software protection Tue, 16 Mar 2010 03:16:39 +0000 http://wordpress.com/ hourly 1 By: Stephen http://rdist.root.org/2007/09/28/protecting-memory-from-dma/#comment-4656 Stephen Thu, 26 Jun 2008 21:09:51 +0000 http://rdist.root.org/2007/09/28/protecting-memory-from-dma/#comment-4656 Great write-up. Thanks for the information. Great write-up. Thanks for the information.

]]> By: 0kn0ck(Aditya K Sood) http://rdist.root.org/2007/09/28/protecting-memory-from-dma/#comment-3150 0kn0ck(Aditya K Sood) Mon, 01 Oct 2007 04:44:27 +0000 http://rdist.root.org/2007/09/28/protecting-memory-from-dma/#comment-3150 Virtualization is quiet a differential concept but rising high now a days. The flexibility and enhanced functionality within a system is hardware working code dependent. I think security perspective is hampered when the hardware driving code inherits flaws. But that too comes in applicability but crucial too. Virtualization is quiet a differential concept but rising high now a days. The flexibility and enhanced functionality within a system is hardware working code dependent. I think security perspective is hampered when the hardware driving code inherits flaws.

But that too comes in applicability but crucial too.

]]> By: Nate Lawson http://rdist.root.org/2007/09/28/protecting-memory-from-dma/#comment-3144 Nate Lawson Sun, 30 Sep 2007 20:54:54 +0000 http://rdist.root.org/2007/09/28/protecting-memory-from-dma/#comment-3144 newsham, you're quite right. We're at a critical point in PC history though where concepts that have existed in past systems or niches are becoming mainstream. Virtualization has been around since IBM in the 1970's at least, but there was a big hole the past couple decades where little or no progress was made. I'm excited at the potential for some of these neglected hardware features to be rediscovered and evolved even farther than they've been before. With these features being in a cheap platform and widely accessible through open-source software, things seem ripe for a renaissance in systems research. newsham, you’re quite right. We’re at a critical point in PC history though where concepts that have existed in past systems or niches are becoming mainstream. Virtualization has been around since IBM in the 1970’s at least, but there was a big hole the past couple decades where little or no progress was made. I’m excited at the potential for some of these neglected hardware features to be rediscovered and evolved even farther than they’ve been before. With these features being in a cheap platform and widely accessible through open-source software, things seem ripe for a renaissance in systems research.

]]> By: newsham http://rdist.root.org/2007/09/28/protecting-memory-from-dma/#comment-3135 newsham Sun, 30 Sep 2007 03:55:10 +0000 http://rdist.root.org/2007/09/28/protecting-memory-from-dma/#comment-3135 iommu is fairly new on the x86 arch but has been around for a while on other platforms, such as sparc. iommu is fairly new on the x86 arch but has been around for a while on other platforms, such as sparc.

]]> By: securology http://rdist.root.org/2007/09/28/protecting-memory-from-dma/#comment-3122 securology Fri, 28 Sep 2007 15:51:52 +0000 http://rdist.root.org/2007/09/28/protecting-memory-from-dma/#comment-3122 Nate, excellent posts on DMA/IOMMU and memory architecture in general. I have linked to you (http://securology.blogspot.com/2007/09/nate-lawson-on-dmaiommu.html) as I have recently commented on these topics as well (http://securology.blogspot.com/2007/09/trust-at-foundational-levels-iommu-dma.html). Nate, excellent posts on DMA/IOMMU and memory architecture in general. I have linked to you (http://securology.blogspot.com/2007/09/nate-lawson-on-dmaiommu.html) as I have recently commented on these topics as well (http://securology.blogspot.com/2007/09/trust-at-foundational-levels-iommu-dma.html).

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