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feat: FAST looking glass! TONS of time on this jesus christ

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Evar 2025-01-26 09:04:27 -05:00
parent d094ec0247
commit ff4eccfb99
8 changed files with 331 additions and 72 deletions
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66
nixos/vm.nix
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@ -6,8 +6,8 @@
}:
let
gpuIDs = [
"1002:7480" # Graphics
"1002:ab30" # Audio
"1002:7480" # Graphics - IOMMU Group 15 / 03:00.0
"1002:ab30" # Audio - IOMMU Group 16 / 03:00.1
];
in {
# https://astrid.tech/2022/09/22/0/nixos-gpu-vfio/ Was a huge gem to find with regard to getting this setup working.
@ -68,8 +68,12 @@ in {
# These are needed, since I'm not currently trying to
# reserve a static IP for the bridge interface
networking.interfaces.eth0.useDHCP = true;
networking.interfaces.winvm0.useDHCP = true;
networking.interfaces.winvm0 = {
useDHCP = false;
ipv4.addresses = [
{ address = "10.0.5.1"; prefixLength = 16; }
];
};
# Trying to ensure the bridge network doesn't cause us to wait
# on boot
@ -101,22 +105,22 @@ in {
# note that the VM needs 64 MB for the shmem in side the
# xml for the full res of the FW laptop
systemd.tmpfiles.rules = [
"f /dev/shm/scream 0660 evar qemu-libvirtd -"
"f /dev/shm/looking-glass 0660 evar qemu-libvirtd -"
];
# systemd.tmpfiles.rules = [
# "f /dev/shm/scream 0660 evar qemu-libvirtd -"
# "f /dev/shm/looking-glass 0660 evar qemu-libvirtd -"
# ];
# service for hooking up scream for audio
systemd.user.services.scream-ivshmem = {
enable = true;
description = "Scream IVSHMEM";
serviceConfig = {
ExecStart = "${pkgs.scream}/bin/scream-ivshmem-pulse /dev/shm/scream";
Restart = "always";
};
wantedBy = [ "multi-user.target" ];
requires = [ "pulseaudio.service" ];
};
# systemd.user.services.scream-ivshmem = {
# enable = true;
# description = "Scream IVSHMEM";
# serviceConfig = {
# ExecStart = "${pkgs.scream}/bin/scream-ivshmem-pulse /dev/shm/scream";
# Restart = "always";
# };
# wantedBy = [ "multi-user.target" ];
# requires = [ "pulseaudio.service" ];
# };
boot = {
initrd.kernelModules = [
@ -166,9 +170,10 @@ in {
"use sendfile" = "yes";
#"max protocol" = "smb2";
"interfaces" = "virbr0";
# note: localhost is the ipv6 localhost ::1
"hosts allow" = "10. 127.0.0.1 localhost";
"hosts deny" = "0.0.0.0/0";
"hosts allow" = "192.168.122.";
# "hosts deny" = "0.0.0.0/0";
"guest account" = "nobody";
"map to guest" = "bad user";
};
@ -194,5 +199,26 @@ in {
networking.firewall.enable = true;
networking.firewall.allowPing = true;
# I got into a stuck state and couldn't start any vm's, whenever I did I got the following:a
# $ sudo cat /var/log/libvirt/qemu/win10.log
# 2025-01-26T04:41:57.245640Z qemu-system-x86_64: -chardev pty,id=charserial0: Failed to create PTY: Operation not permitted
# 2025-01-26 04:41:57.284+0000: shutting down, reason=failed
#
# After some searching, several sources stated that this is something with OVH
# and the workaround is as below.
#
# https://bugzilla.redhat.com/show_bug.cgi?id=1668713
# https://www.linuxglobal.com/fixed-libvirtd-qemu-kvm-monitor-unexpectedly-closed-failed-create-chardev-live-migration-virsh-start/
fileSystems."devpts" = {
device = "devpts";
mountPoint = "/dev/pts";
fsType = "devpts";
noCheck = true;
options = [
"gid=5"
"mode=620"
];
};
};
}