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9ca019c1 AB |
1 | # q35 - VirtIO guest (serial console) |
2 | # ========================================================= | |
3 | # | |
4 | # Usage: | |
5 | # | |
6 | # $ qemu-system-x86_64 \ | |
7 | # -nodefaults \ | |
8 | # -readconfig q35-virtio-serial.cfg \ | |
9 | # -display none -serial mon:stdio | |
10 | # | |
11 | # You will probably need to tweak the lines marked as | |
12 | # CHANGE ME before being able to use this configuration! | |
13 | # | |
14 | # The guest will have a selection of VirtIO devices | |
15 | # tailored towards optimal performance with modern guests, | |
16 | # and will be accessed through the serial console. | |
17 | # | |
18 | # --------------------------------------------------------- | |
19 | # | |
20 | # Using -nodefaults is required to have full control over | |
21 | # the virtual hardware: when it's specified, QEMU will | |
22 | # populate the board with only the builtin peripherals | |
23 | # plus a small selection of core PCI devices and | |
24 | # controllers; the user will then have to explicitly add | |
25 | # further devices. | |
26 | # | |
27 | # The core PCI devices show up in the guest as: | |
28 | # | |
29 | # 00:00.0 Host bridge | |
30 | # 00:1f.0 ISA bridge / LPC | |
31 | # 00:1f.2 SATA (AHCI) controller | |
32 | # 00:1f.3 SMBus controller | |
33 | # | |
34 | # This configuration file adds a number of other useful | |
35 | # devices, more specifically: | |
36 | # | |
37 | # 00.1c.* PCI bridge (PCI Express Root Ports) | |
38 | # 01:00.0 SCSI storage controller | |
39 | # 02:00.0 Ethernet controller | |
40 | # | |
41 | # More information about these devices is available below. | |
42 | # | |
43 | # We use '-display none' to prevent QEMU from creating a | |
44 | # graphical display window, which would serve no use in | |
45 | # this specific configuration, and '-serial mon:stdio' to | |
46 | # multiplex the guest's serial console and the QEMU monitor | |
47 | # to the host's stdio; use 'Ctrl+A h' to learn how to | |
48 | # switch between the two and more. | |
49 | ||
50 | ||
51 | # Machine options | |
52 | # ========================================================= | |
53 | # | |
54 | # We use the q35 machine type and enable KVM acceleration | |
55 | # for better performance. | |
56 | # | |
57 | # Using less than 1 GiB of memory is probably not going to | |
58 | # yield good performance in the guest, and might even lead | |
59 | # to obscure boot issues in some cases. | |
60 | ||
61 | [machine] | |
62 | type = "q35" | |
4477035e TH |
63 | |
64 | [accel] | |
9ca019c1 AB |
65 | accel = "kvm" |
66 | ||
67 | [memory] | |
68 | size = "1024" | |
69 | ||
70 | ||
71 | # PCI bridge (PCI Express Root Ports) | |
72 | # ========================================================= | |
73 | # | |
74 | # We create eight PCI Express Root Ports, and we plug them | |
75 | # all into separate functions of the same slot. Some of | |
76 | # them will be used by devices, the rest will remain | |
77 | # available for hotplug. | |
78 | ||
79 | [device "pcie.1"] | |
80 | driver = "pcie-root-port" | |
81 | bus = "pcie.0" | |
82 | addr = "1c.0" | |
83 | port = "1" | |
84 | chassis = "1" | |
85 | multifunction = "on" | |
86 | ||
87 | [device "pcie.2"] | |
88 | driver = "pcie-root-port" | |
89 | bus = "pcie.0" | |
90 | addr = "1c.1" | |
91 | port = "2" | |
92 | chassis = "2" | |
93 | ||
94 | [device "pcie.3"] | |
95 | driver = "pcie-root-port" | |
96 | bus = "pcie.0" | |
97 | addr = "1c.2" | |
98 | port = "3" | |
99 | chassis = "3" | |
100 | ||
101 | [device "pcie.4"] | |
102 | driver = "pcie-root-port" | |
103 | bus = "pcie.0" | |
104 | addr = "1c.3" | |
105 | port = "4" | |
106 | chassis = "4" | |
107 | ||
108 | [device "pcie.5"] | |
109 | driver = "pcie-root-port" | |
110 | bus = "pcie.0" | |
111 | addr = "1c.4" | |
112 | port = "5" | |
113 | chassis = "5" | |
114 | ||
115 | [device "pcie.6"] | |
116 | driver = "pcie-root-port" | |
117 | bus = "pcie.0" | |
118 | addr = "1c.5" | |
119 | port = "6" | |
120 | chassis = "6" | |
121 | ||
122 | [device "pcie.7"] | |
123 | driver = "pcie-root-port" | |
124 | bus = "pcie.0" | |
125 | addr = "1c.6" | |
126 | port = "7" | |
127 | chassis = "7" | |
128 | ||
129 | [device "pcie.8"] | |
130 | driver = "pcie-root-port" | |
131 | bus = "pcie.0" | |
132 | addr = "1c.7" | |
133 | port = "8" | |
134 | chassis = "8" | |
135 | ||
136 | ||
137 | # SCSI storage controller (and storage) | |
138 | # ========================================================= | |
139 | # | |
140 | # We use virtio-scsi here so that we can (hot)plug a large | |
141 | # number of disks without running into issues; a SCSI disk, | |
142 | # backed by a qcow2 disk image on the host's filesystem, is | |
143 | # attached to it. | |
144 | # | |
145 | # We also create an optical disk, mostly for installation | |
9277d81f | 146 | # purposes: once the guest OS has been successfully |
9ca019c1 AB |
147 | # installed, the guest will no longer boot from optical |
148 | # media. If you don't want, or no longer want, to have an | |
149 | # optical disk in the guest you can safely comment out | |
150 | # all relevant sections below. | |
151 | ||
152 | [device "scsi"] | |
153 | driver = "virtio-scsi-pci" | |
154 | bus = "pcie.1" | |
155 | addr = "00.0" | |
156 | ||
157 | [device "scsi-disk"] | |
158 | driver = "scsi-hd" | |
159 | bus = "scsi.0" | |
160 | drive = "disk" | |
161 | bootindex = "1" | |
162 | ||
163 | [drive "disk"] | |
164 | file = "guest.qcow2" # CHANGE ME | |
165 | format = "qcow2" | |
166 | if = "none" | |
167 | ||
168 | [device "scsi-optical-disk"] | |
169 | driver = "scsi-cd" | |
170 | bus = "scsi.0" | |
171 | drive = "optical-disk" | |
172 | bootindex = "2" | |
173 | ||
174 | [drive "optical-disk"] | |
175 | file = "install.iso" # CHANGE ME | |
176 | format = "raw" | |
177 | if = "none" | |
178 | ||
179 | ||
180 | # Ethernet controller | |
181 | # ========================================================= | |
182 | # | |
183 | # We use virtio-net for improved performance over emulated | |
184 | # hardware; on the host side, we take advantage of user | |
185 | # networking so that the QEMU process doesn't require any | |
186 | # additional privileges. | |
187 | ||
188 | [netdev "hostnet"] | |
189 | type = "user" | |
190 | ||
191 | [device "net"] | |
192 | driver = "virtio-net-pci" | |
193 | netdev = "hostnet" | |
194 | bus = "pcie.2" | |
195 | addr = "00.0" |