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looking for info on Xeon X 5460 Instruction set

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I was doing some research on Xeon X5460 and was wondering what the instruction set  (-XSAVE/XRESTORE states, -XSETBV/XGETBV are enabled ) are for or what they do ?


Thank you


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This says -



the XSAVE and XRESTORE instruction were introduced which deprecate the older FNSAVE/FXSAVE mechanism

Search XSAVE for more info in that link.

FXSAVE - http://x86.renejesch...x86_id_128.html


Sounds like the "Save" is to save a State (?) and the "Restore" is to "put it back".


This nifty utility will tell you all about a CPU's abilities -



This makes it -appear- (and that seems like other finds about the instruction sets) that it's/they're related to x64 and Hyper-V (VM's) -


Note the Book Name is titled "Mastering Hyper-V 2012 R2 with System Center and Windows Azure".

Why would you care? It's strictly related to the OS/SOftware utilization of said Instructions. I will -assume- it means that the MoBo/CPU is capable of running Hyper-V (VM's), i.e. separately running OS's (with one as the "controller") simultaneously. Try researching that instead.



Edited by submix8c, Today, 05:35 PM.

Someday the tyrants will be unthroned... Jason "Jay" Chasteen; RIP, bro!

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