Bug 726280

1. Feature Overview:
 a) Name of feature:
Haswell new instructions

 b) Feature Description:
Haswell CPU will support more new instructions. For example,
 - FP fused Multiply Add
 - 256-bit Integer vectors
 - MOVBE support
 - HLE/HLE+
 - etc.

We need expose these features to guest. So, modern guest can use these new
instructiosn. Furthermore, we will use some of these new instructions to
improve the efficiency of KVM.

 2. Feature Details:
 a) Architectures:
64-bit Intel EM64T/AMD64

 b) Bugzilla Dependencies:

 c) Drivers or hardware dependencies:

 d) Upstream acceptance information:

 e) External links:

 f) Severity (H,M,L):
Medium

 g) Feature Needed by:
Q4 2011

 3. Business Justification:
 a) Why is this feature needed?
Performance enhancements for KVM

 b) What hardware does this enable?
Haswell

 c) Business impact?

 d) Other business drivers:

 4. Primary contact at Red Hat, email, phone (chat)

Donald Dugger
donald.d.dugger
303/443-3786

 5. Primary contact at Partner, email, phone (chat)

Keve Gabbert
keve.a.gabbert
Phone Number: +1 503 264 7597