@samitouri / QOSamiQemu
Code Commits Issues Pulls Sessions CI/CD
master
master
cfg 195 lines 4.65 KB
Raw
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"
63
64 [accel]
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
146 # purposes: once the guest OS has been successfully
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"