Archives

Posts from Ashok Raj (Intel) RSS

Ashok Raj (Intel)

Iam is a Sr. Staff Software engineer at Intel Corporation in the OpenSource Technology Center. Our focus is to make Xeon the platform of choice for OpenSolaris. My recent work was to add Nehalem Support, implementing IOMMU, Interrupt remapping support for OpenSolaris. I have played a crucial role in adding RAS features such as cpu hotplug in Linux. I was part of the team that launched Infiniband support, and lead the team on implementation for Linux and EFI support for Infiniband. I joined Intel in 1999, earlier i spent about a year in Siemens Pyramid Technologies on mass storage architectures. I also worked in India @Wipro Technologies and HCL limited for a period of 3 years. I hold a master's degree in Computer science from Anna University, India. Meet me in my personal blogspace for some random off-work rumblings at http://ashoksblogspace.blogspot.com

IOMMU and BIOS woes...

By Ashok Raj (Intel) (5 posts) on September 17, 2009 at 12:18 pm
Comments (0)

In this weeks blog, i would like to run through some of the BIOS issues we ran into during the enabling program. First realize how much we OS developers love our fellow BIOS developers :-). Most strange problems are caused by BIOS.. so here is a list of what we ran into so far.. there [...]

Continued ›

Category: Manageability & Security, Open Source
Tags:

Decoding the DMAR tables in ACPI...IOMMU Part 2

By Ashok Raj (Intel) (5 posts) on September 11, 2009 at 2:07 pm
Comments (1)

Wow... just realized i pretty much abandoned by blog update.. Bad bad me! Now that we know how to dump the ACPI structures, lets see what they tell us about IOMMU. In this part we will just attempt to decode the different structures, and their purpose. DMAR - indicates the DMA remapping unit responsible for [...]

Continued ›

Category: Uncategorized
Tags:

Intel's Virtualization for Directed I/O (a.k.a IOMMU) Part 1

By Ashok Raj (Intel) (5 posts) on March 2, 2009 at 10:50 pm
Comments (3)

IOMMU's or Input/Output Memory Management Unit is a new entrant to the x86 world. This is something which has existed in the risc based systems for quite some time. You can get a brief introduction on the concept of what an IOMMU is all about from the http://en.wikipedia.org/wiki/IOMMU Basically an IOMMU brokers any DMA request [...]

Continued ›

Category: Open Source, Uncategorized
Tags: , ,

How open is OpenSolaris ?

By Ashok Raj (Intel) (5 posts) on January 21, 2009 at 9:25 pm
Comments (6)

I have always wondered what makes a successful open source project, especially since i worked extensively on Linux and now working on OpenSolaris. Dave Stewart did a presentation a while back on the same subject in another conference. Iam not an expert about all open source projects in general, but only familier with Linux and [...]

Continued ›

Category: Open Source, Uncategorized
Tags: , ,

Finally There...

By Ashok Raj (Intel) (5 posts) on January 5, 2009 at 5:03 pm
Comments (1)

Ok.. should warn everyone this is my first blog...well, at least on the Intel Network. Are your worried about my picture!? I don't eat live/dead cockroaches... and trust me I dont have a 3rd eye either.. that was my first project with CS3. I was inspired by the guy i work for Dave Stewart who [...]

Continued ›

Category: Open Source, Software Tools, Uncategorized
Tags: