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Groups > linux.kernel > #1704697
| From | "Sebastian Rachuj" <Rachus@web.de> |
|---|---|
| Newsgroups | linux.kernel |
| Subject | kvm_intel fails to load on Conroe CPUs running Linux 4.12 |
| Date | 2017-08-05 21:30 +0200 |
| Message-ID | <ubcVQ-DP-17@gated-at.bofh.it> (permalink) |
| Organization | linux.* mail to news gateway |
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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kvm_intel fails to load on Conroe CPUs running Linux 4.12 "Sebastian Rachuj" <Rachus@web.de> - 2017-08-05 21:30 +0200
Re: kvm_intel fails to load on Conroe CPUs running Linux 4.12 Paolo Bonzini <pbonzini@redhat.com> - 2017-08-06 23:20 +0200
Re: kvm_intel fails to load on Conroe CPUs running Linux 4.12 Sebastian Rachuj <rachus@web.de> - 2017-08-06 23:30 +0200
Re: kvm_intel fails to load on Conroe CPUs running Linux 4.12 Paolo Bonzini <pbonzini@redhat.com> - 2017-08-07 11:50 +0200
Re: kvm_intel fails to load on Conroe CPUs running Linux 4.12 Nadav Amit <nadav.amit@gmail.com> - 2017-08-07 19:20 +0200
Re: kvm_intel fails to load on Conroe CPUs running Linux 4.12 Sebastian Rachuj <rachus@web.de> - 2017-08-07 19:20 +0200
Re: kvm_intel fails to load on Conroe CPUs running Linux 4.12 Paolo Bonzini <pbonzini@redhat.com> - 2017-08-07 20:00 +0200
Re: kvm_intel fails to load on Conroe CPUs running Linux 4.12 Sebastian Rachuj <rachus@web.de> - 2017-08-07 20:50 +0200
Re: Re: kvm_intel fails to load on Conroe CPUs running Linux 4.12 Niall Walsh <lkml@celtux.org> - 2017-08-08 23:50 +0200
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