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Who When What Removed Added
CongLi 2013-12-19 11:19:13 UTC Priority unspecified medium
CC juzhang, michen, shuang, xwei
Hai Huang 2013-12-19 12:41:09 UTC CC hhuang
Assignee virt-maint rhod
Ronen Hod 2013-12-19 13:38:57 UTC Assignee rhod dfleytma
Yvugenfi 2014-01-14 14:06:54 UTC CC yvugenfi
Assignee dfleytma ehabkost
lijin 2014-01-22 03:41:47 UTC CC lijin
mazhang 2014-02-12 09:14:36 UTC CC xhan
CC mazhang
Eduardo Habkost 2014-02-24 23:35:00 UTC Status NEW ON_QA
Eduardo Habkost 2014-02-25 14:07:13 UTC Status ON_QA CLOSED
Resolution --- NOTABUG
Doc Text Cause:
Windows 8.1 and Windows 2012R2 require some CPU features that are not present in all qemu-kvm CPU models. e.g.: CMPXCHG8B ("cx8") and CMPXCHG16B ("cx16").

Consequence:
Windows 8.1 and Windows 2012R2 won't boot if using the following CPU models: Opteron_G1, Conroe, kvm64.

Workaround (if any):
Use CPU models that include the features required by Windows 8.1 and Windows 2012 R2, e.g.: Penryn, Nehalem, Westmere, SandyBridge, Haswell, Opteron_G2, Opteron_G3, Opteron_G4, Opteron_G5.

Result:
Doc Type Bug Fix Known Issue
Last Closed 2014-02-25 09:07:13 UTC
Milan Navratil 2014-06-06 00:43:22 UTC CC mnavrati
Doc Text Cause:
Windows 8.1 and Windows 2012R2 require some CPU features that are not present in all qemu-kvm CPU models. e.g.: CMPXCHG8B ("cx8") and CMPXCHG16B ("cx16").

Consequence:
Windows 8.1 and Windows 2012R2 won't boot if using the following CPU models: Opteron_G1, Conroe, kvm64.

Workaround (if any):
Use CPU models that include the features required by Windows 8.1 and Windows 2012 R2, e.g.: Penryn, Nehalem, Westmere, SandyBridge, Haswell, Opteron_G2, Opteron_G3, Opteron_G4, Opteron_G5.

Result:
Windows 8.1 and Windows 2012 R2 require some CPU features that are not present in all qemu-kvm CPU models. Consequently, Windows 8.1 and Windows 2012 R2 do not boot they if certain CPU models are used, namely Opteron_G1, Conroe, and kvm64. To work around this problem, use CPU models that include the features required by Windows 8.1 and Windows 2012 R2, for example Penryn, Nehalem, Westmere, SandyBridge, Haswell, Opteron_G2, Opteron_G3, Opteron_G4, Opteron_G5.

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