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[Qemu-devel] [Bug 588127] Re: qemu fails to recognize host features SSE4


From: Anthony Liguori
Subject: [Qemu-devel] [Bug 588127] Re: qemu fails to recognize host features SSE4.1, SSE4.2
Date: Wed, 02 Jun 2010 21:07:31 -0000

This is a recently added feature that won't be in a release until
0.13.0.

** Changed in: qemu
       Status: New => Fix Released

-- 
qemu fails to recognize host features SSE4.1, SSE4.2
https://bugs.launchpad.net/bugs/588127
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Status in QEMU: Fix Released

Bug description:
Tested on qemu v0.11.0 and v0.12.3:

>qemu-kvm -cpu core2duo,+sse4.1,+sse4.2
CPU feature sse4.1 not found
CPU feature sse4.2 not found

>egrep "model name|flags" /proc/cpuinfo | sort -r | uniq
model name      : Intel(R) Xeon(R) CPU           X5570  @ 2.93GHz
flags           : fpu vme de pse tsc msr pae mce cx8 apic mtrr pge mca cmov pat 
pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe syscall nx rdtscp lm 
constant_tsc arch_perfmon pebs bts rep_good xtopology tsc_reliable nonstop_tsc 
pni dtes64 monitor ds_cpl vmx est tm2 ssse3 cx16 xtpr pdcm dca sse4_1 sse4_2 
popcnt lahf_lm tpr_shadow vnmi flexpriority ept vpid





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