neovikingx Posted July 11, 2014 Share Posted July 11, 2014 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 Link to comment Share on other sites More sharing options...
submix8c Posted July 11, 2014 Share Posted July 11, 2014 (edited) This says -http://www.emulators.com/docs/nx34_2011_avx.htm the XSAVE and XRESTORE instruction were introduced which deprecate the older FNSAVE/FXSAVE mechanismSearch XSAVE for more info in that link.FXSAVE - http://x86.renejeschke.de/html/file_module_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 -http://technet.microsoft.com/pt-pt/sysinternals/cc835722 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) -http://books.google.com/books?id=crZaAwAAQBAJ&pg=PT126&lpg=PT126&dq=%22XSETBV/XGETBV%22&source=bl&ots=I-cE5EvmRN&sig=486gHMwrDMoha3qmvFb9iYABrTM&hl=en&sa=X&ei=TXLAU-m1MYSryATXoICwCA&ved=0CDoQ6AEwBw#v=onepage&q=%22XSETBV%2FXGETBV%22&f=falseNote 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. HTH Edited July 11, 2014 by submix8c Link to comment Share on other sites More sharing options...
neovikingx Posted July 13, 2014 Author Share Posted July 13, 2014 Thank you for the info. Link to comment Share on other sites More sharing options...
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