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9d15647dcb
By default Xen only allows guests to write "known safe" values into PCI configuration space, yet many devices require writes to other areas of the configuration space in order to operate properly. To allow writing any values Xen supports the 'permissive' setting, see xl.cfg(5) man page. This change models Xen's permissive setting by adding a writeFiltering attribute on the <source> element of a PCI hostdev. When writeFiltering is set to 'no', the Xen permissive setting will be enabled and guests will be able to write any values into the device's configuration space. The permissive setting remains disabled in the absense of the writeFiltering attribute, of if it is explicitly set to 'yes'. Signed-off-by: Jim Fehlig <jfehlig@suse.com> Signed-off-by: Simon Gaiser <simon@invisiblethingslab.com> Signed-off-by: Marek Marczykowski-Górecki <marmarek@invisiblethingslab.com> Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
118 lines
2.4 KiB
JSON
118 lines
2.4 KiB
JSON
{
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"c_info": {
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"type": "hvm",
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"hap": "True",
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"name": "test-hvm",
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"uuid": "2147d599-9cc6-c0dc-92ab-4064b5446e9b"
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},
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"b_info": {
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"max_vcpus": 4,
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"avail_vcpus": [
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0,
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1,
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2,
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3
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],
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"tsc_mode": "native",
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"max_memkb": 1048576,
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"target_memkb": 1048576,
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"video_memkb": 8192,
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"shadow_memkb": 12288,
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"device_model_version": "qemu_xen",
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"device_model": "/bin/true",
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"sched_params": {
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},
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"type.hvm": {
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"pae": "True",
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"apic": "True",
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"acpi": "True",
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"hpet": "True",
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"vga": {
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"kind": "cirrus"
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},
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"vnc": {
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"enable": "True",
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"findunused": "False"
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},
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"sdl": {
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"enable": "False"
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},
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"spice": {
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},
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"serial": "pty",
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"boot": "c",
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"usbdevice_list": [
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"mouse",
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"tablet"
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],
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"rdm": {
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}
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},
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"arch_arm": {
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}
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},
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"disks": [
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{
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"pdev_path": "/var/lib/xen/images/test-hvm.img",
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"vdev": "hda",
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"backend": "qdisk",
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"format": "raw",
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"removable": 1,
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"readwrite": 1
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},
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{
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"pdev_path": "/root/boot.iso",
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"vdev": "hdb",
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"backend": "qdisk",
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"format": "raw",
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"removable": 1,
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"is_cdrom": 1
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}
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],
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"nics": [
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{
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"devid": 0,
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"model": "netfront",
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"mac": "00:16:3e:7a:35:ce",
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"bridge": "br0",
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"script": "/etc/xen/scripts/vif-bridge",
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"nictype": "vif"
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}
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],
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"pcidevs": [
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{
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"dev": 16,
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"bus": 10,
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"rdm_policy": "invalid"
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},
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{
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"dev": 8,
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"bus": 10,
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"permissive": true,
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"rdm_policy": "invalid"
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}
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],
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"vfbs": [
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{
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"devid": -1,
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"vnc": {
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"enable": "True",
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"findunused": "False"
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},
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"sdl": {
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"enable": "False"
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}
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}
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],
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"vkbs": [
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{
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"devid": -1
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}
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],
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"on_reboot": "restart"
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}
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