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caandt 2026-01-05 01:53:38 -06:00
parent 1382943989
commit d4a6f228c0
1 changed files with 19 additions and 0 deletions
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19
hosts/tachibana/virt.nix
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@ -22,10 +22,29 @@
extraModprobeConfig = ''
options vfio-pci ids=10de:2b85,10de:22e8
options kvmfr static_size_mb=64
options kvm_amd avic=1
'';
};
services.udev.extraRules = ''
SUBSYSTEM=="kvmfr", GROUP="kvm", MODE="0660"
'';
environment.systemPackages = [pkgs.looking-glass-client];
virtualisation.libvirtd.hooks.qemu = {
"isolatecpu.sh" =
pkgs.writeShellScript "isolatecpu.sh"
''
#!/bin/sh
PIN="AllowedCPUs=8-15,24-31"
ALL="AllowedCPUs=0-31"
if [ "$2" = "started" ]; then
systemctl set-property --runtime -- system.slice $PIN
systemctl set-property --runtime -- user.slice $PIN
systemctl set-property --runtime -- init.scope $PIN
elif [ "$2" = "release" ]; then
systemctl set-property --runtime -- system.slice $ALL
systemctl set-property --runtime -- user.slice $ALL
systemctl set-property --runtime -- init.scope $ALL
fi
'';
};
}