[Bug 203994] bhyve kernel module may need to relax some checks when running nested under KVM

[bugzilla-noreply]

https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=203994

--- Comment #12 from Tom M  ---
CPU: Intel(R) Xeon(R) CPU E3-1245 v3 @ 3.40GHz (3392.20-MHz K8-class CPU)

cpucontrol -m 0x480 /dev/cpuctl0
MSR 0x480: 0x00981000 0x11e57ed0
cpucontrol -m 0x482 /dev/cpuctl0
MSR 0x482: 0xfff9fffe 0x0401e172
cpucontrol -m 0x48b /dev/cpuctl0
MSR 0x48b: 0x00fb 0x
cpucontrol -m 0x48c /dev/cpuctl0
MSR 0x48c: 0x0601 0x04114040


CPU: Intel(R) Atom(TM) CPU  C2750  @ 2.40GHz (2400.08-MHz K8-class CPU)

cpucontrol -m 0x480 /dev/cpuctl0
MSR 0x480: 0x00981000 0x11e57ed0
cpucontrol -m 0x482 /dev/cpuctl0
MSR 0x482: 0xfff9fffe 0x0401e172
cpucontrol -m 0x48b /dev/cpuctl0
MSR 0x48b: 0x00eb 0x
cpucontrol -m 0x48c /dev/cpuctl0
MSR 0x48c: 0x0601 0x04114040

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[Bug 218248] [Hyper-V]The OS disk of Gen2 VM was detached if an CD/DVD was attached

[bugzilla-noreply]

https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=218248

Rodney W. Grimes  changed:

   What|Removed |Added

 CC||rgri...@freebsd.org

--- Comment #3 from Rodney W. Grimes  ---
Normally wait tell the MFC is done and then the bug should close for you if the
proper PR was refered to in the commits.  I think this bug was held open
waiting for your 3 day MFC timeout.

Thanks,

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[Bug 203994] bhyve kernel module may need to relax some checks when running nested under KVM

[bugzilla-noreply]

https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=203994

ForkBender  changed:

   What|Removed |Added

 CC||chrisanste...@gmail.com

--- Comment #11 from ForkBender  ---
(In reply to Peter Grehan from comment #9)

I have FreeNas running in Proxmox, and here's my output:

# cpucontrol -m 0x480 /dev/cpuctl0
MSR 0x480: 0x00981000 0x11e57ed0
# cpucontrol -m 0x482 /dev/cpuctl0
MSR 0x482: 0xfff9fffe 0x0401e172
# cpucontrol -m 0x48b /dev/cpuctl0
MSR 0x48b: 0x00fb 0x
# cpucontrol -m 0x48c /dev/cpuctl0
MSR 0x48c: 0x0601 0x04114040

plus a couple of other bits that might be useful:

# uname -a
FreeBSD freenas.local 11.0-STABLE FreeBSD 11.0-STABLE #6 ...

# dmesg | grep CPU
CPU: Intel(R) Xeon(R) CPU E31220 @ 3.10GHz (3092.89-MHz K8-class CPU)

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[Bug 203994] bhyve kernel module may need to relax some checks when running nested under KVM

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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=203994

--- Comment #10 from Roman Bogorodskiy  ---
(In reply to Peter Grehan from comment #9)

Here's what I have in FreeBSD (12-CURRENT as of Feb 22 2017) inside KVM (Fedora
25):

# cpucontrol -m 0x480 /dev/cpuctl0
MSR 0x480: 0x00d81000 0x11e57ed0
# cpucontrol -m 0x482 /dev/cpuctl0
MSR 0x482: 0xfff9fffe 0x0401e172
# cpucontrol -m 0x48b /dev/cpuctl0
MSR 0x48b: 0x00fb 0x
# cpucontrol -m 0x48c /dev/cpuctl0
MSR 0x48c: 0x0601 0x06114041
# 

in case if could be useful, cpu part of dmesg looks like this:


CPU: Intel(R) Core(TM) i5-4690 CPU @ 3.50GHz (3492.07-MHz K8-class CPU)
  Origin="GenuineIntel"  Id=0x306c3  Family=0x6  Model=0x3c  Stepping=3
 
Features=0xf83fbff
 
Features2=0xfffa3223
  AMD Features=0x2c100800
  AMD Features2=0x21
  Structured Extended Features=0x72a
  XSAVE Features=0x1
  VT-x: PAT,HLT,MTF,PAUSE,EPT,UG,VPID
Hypervisor: Origin = "KVMKVMKVM"

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Re: OpenBSD 6.1-snapshot no longer works in bhyve

[Jason Tubnor]

On 5 April 2017 at 14:55, Peter Grehan  wrote:

 You can use bhyve's "-w" option to workaround this.
>
>  I'll cherrypick the hardened BSD commit which fixes this in the meantime
>
> https://github.com/HardenedBSD/hardenedBSD/commit/cc91b57f4d
> 1dabddfbf8b1e7655bc19908f24f78
>
>
I can confirm that -w for this piece of hardware works and it boots as
normal.

I did receive a new SuperMicro with an Atom C2758 SoC CPU and this did not
exhibit the same problem with the original bhyve arguments used for start
up.  So it isn't a far reaching problem.

Thanks for the quick response.

Cheers,

Jason.
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