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Re: [Qemu-devel] Qemu the right way -[Subthread Cores]
From: |
Andrew Randrianasulu |
Subject: |
Re: [Qemu-devel] Qemu the right way -[Subthread Cores] |
Date: |
Thu, 27 Dec 2018 14:21:34 +0300 |
User-agent: |
KMail/1.9.10 |
> Since I do not have networking sorted out yet I cannot update win7 pro, and
> it
might be the updates which are needed for allowing more than two cpus.
hm, brief search on my side resulted in this tip:
https://answers.microsoft.com/en-us/windows/forum/windows_7-hardware/windows-7-professional-x64-only-showing-2-of-8/0155f525-df73-4642-a828-21b80d1564b0
----------
Some recommendations (in Windows, make sure you are running as Administrator):
- Run MSConfig -> Change to Boot tab -> Advanced Options -> "Number of
Processors", make sure there is no check mark.
- Delete processor entries listed in Device Manager, then reboot.
-------------
(I don't think BIOS options from this answer really apply directly to qemu case)
also, if win (or some applications inside it) keep crashing with -cpu host, you
can try to reload host (Linux) kvm module with additional option:
"options kvm ignore_msrs=1" line (without quotes) should be added to
/etc/modprobe.d/kvm.conf
from
https://www.passmark.com/forum/performancetest/4748-startup-error-number-4-on-qemu-bsod