Messages in this thread | | | From | "Sebastian Rachuj" <> | Subject | kvm_intel fails to load on Conroe CPUs running Linux 4.12 | Date | Sat, 5 Aug 2017 21:26:42 +0200 |
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Dear linux developers,
since my upgrade from linux 4.11 to linux 4.12 the "kvm_intel" module does not load correctly anymore. "Modprobing" the kernel module gives an Input/Output error. It seems to be related to the CPU architecture and (to my knowledge) affects Conroe CPUs. I did a bisect and found the following commit as the guilty one:
commit 2c82878b0cb38fd516fd612c67852a6bbf282003 Author: Paolo Bonzini <pbonzini@redhat.com> Date: Mon Mar 27 14:37:28 2017 +0200
KVM: VMX: require virtual NMI support
Virtual NMIs are only missing in Prescott and Yonah chips. Both are obsolete for virtualization usage---Yonah is 32-bit only even---so drop vNMI emulation.
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Since the commit message only mentions Prescott and Yonah chips, I wanted to ask whether this commit is also intended to affect Conroe CPUs (which are probably still a bit more widespread). Do you see a solution to bring back support for Conroe chips?
Thank you for your hard work on the kernel!
Best regards, Sebastian Rachuj
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