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conf: add support for <acpi index='NNN'/> for PCI devices
PCI devices can be associated with a unique integer index that is exposed via ACPI. In Linux OS with systemd, this value is used for provide a NIC device naming scheme that is stable across changes in PCI slot configuration. Reviewed-by: Peter Krempa <pkrempa@redhat.com> Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
This commit is contained in:
parent
ee4abd6312
commit
a9fe9569ab
@ -4363,6 +4363,7 @@ Network interfaces
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<mac address='52:54:00:5d:c7:9e'/>
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<mac address='52:54:00:5d:c7:9e'/>
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<boot order='1'/>
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<boot order='1'/>
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<rom bar='off'/>
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<rom bar='off'/>
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<acpi index='4'/>
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</interface>
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</interface>
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</devices>
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</devices>
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...
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...
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@ -4389,6 +4390,12 @@ when it's in the reserved VMware range by adding a ``type="static"`` attribute
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to the ``<mac/>`` element. Note that this attribute is useless if the provided
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to the ``<mac/>`` element. Note that this attribute is useless if the provided
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MAC address is outside of the reserved VMWare ranges.
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MAC address is outside of the reserved VMWare ranges.
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:since:`Since 7.3.0`, one can set the ACPI index against network interfaces.
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With some operating systems (eg Linux with systemd), the ACPI index is used
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to provide network interface device naming, that is stable across changes
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in PCI addresses assigned to the device. This value is required to be unique
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across all devices and be between 1 and (16*1024-1).
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:anchor:`<a id="elementsNICSVirtual"/>`
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:anchor:`<a id="elementsNICSVirtual"/>`
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Virtual network
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Virtual network
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@ -1444,6 +1444,9 @@
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<optional>
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<optional>
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<ref name="alias"/>
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<ref name="alias"/>
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</optional>
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</optional>
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<optional>
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<ref name="acpi"/>
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</optional>
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<optional>
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<optional>
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<ref name="address"/>
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<ref name="address"/>
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</optional>
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</optional>
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@ -2435,6 +2438,9 @@
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<optional>
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<optional>
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<ref name="alias"/>
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<ref name="alias"/>
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</optional>
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</optional>
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<optional>
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<ref name="acpi"/>
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</optional>
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<optional>
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<optional>
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<ref name="address"/>
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<ref name="address"/>
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</optional>
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</optional>
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@ -2863,6 +2869,9 @@
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<optional>
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<optional>
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<ref name="alias"/>
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<ref name="alias"/>
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</optional>
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</optional>
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<optional>
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<ref name="acpi"/>
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</optional>
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<optional>
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<optional>
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<ref name="address"/>
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<ref name="address"/>
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</optional>
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</optional>
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@ -3520,6 +3529,9 @@
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<optional>
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<optional>
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<ref name="alias"/>
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<ref name="alias"/>
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</optional>
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</optional>
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<optional>
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<ref name="acpi"/>
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</optional>
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<optional>
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<optional>
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<ref name="address"/>
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<ref name="address"/>
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</optional>
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</optional>
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@ -4146,6 +4158,9 @@
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<optional>
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<optional>
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<ref name="alias"/>
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<ref name="alias"/>
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</optional>
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</optional>
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<optional>
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<ref name="acpi"/>
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</optional>
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<optional>
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<optional>
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<ref name="address"/>
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<ref name="address"/>
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</optional>
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</optional>
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@ -4286,6 +4301,9 @@
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<optional>
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<optional>
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<ref name="alias"/>
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<ref name="alias"/>
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</optional>
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</optional>
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<optional>
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<ref name="acpi"/>
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</optional>
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<optional>
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<optional>
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<ref name="address"/>
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<ref name="address"/>
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</optional>
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</optional>
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@ -4538,6 +4556,9 @@
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<optional>
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<optional>
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<ref name="alias"/>
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<ref name="alias"/>
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</optional>
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</optional>
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<optional>
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<ref name="acpi"/>
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</optional>
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<optional>
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<optional>
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<ref name="address"/>
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<ref name="address"/>
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</optional>
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</optional>
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@ -4942,6 +4963,9 @@
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<optional>
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<optional>
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<ref name="alias"/>
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<ref name="alias"/>
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</optional>
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</optional>
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<optional>
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<ref name="acpi"/>
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</optional>
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<optional>
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<optional>
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<ref name="address"/>
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<ref name="address"/>
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</optional>
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</optional>
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@ -5011,6 +5035,9 @@
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<optional>
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<optional>
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<ref name="alias"/>
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<ref name="alias"/>
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</optional>
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</optional>
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<optional>
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<ref name="acpi"/>
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</optional>
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<optional>
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<optional>
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<ref name="address"/>
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<ref name="address"/>
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</optional>
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</optional>
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@ -5043,6 +5070,9 @@
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<optional>
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<optional>
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<ref name="alias"/>
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<ref name="alias"/>
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</optional>
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</optional>
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<optional>
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<ref name="acpi"/>
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</optional>
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<optional>
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<optional>
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<ref name="address"/>
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<ref name="address"/>
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</optional>
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</optional>
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@ -5121,6 +5151,9 @@
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<optional>
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<optional>
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<ref name="alias"/>
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<ref name="alias"/>
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</optional>
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</optional>
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<optional>
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<ref name="acpi"/>
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</optional>
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<optional>
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<optional>
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<ref name="address"/>
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<ref name="address"/>
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</optional>
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</optional>
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@ -5165,6 +5198,9 @@
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<optional>
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<optional>
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<ref name="alias"/>
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<ref name="alias"/>
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</optional>
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</optional>
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<optional>
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<ref name="acpi"/>
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</optional>
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<optional>
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<optional>
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<ref name="address"/>
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<ref name="address"/>
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</optional>
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</optional>
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@ -5192,6 +5228,9 @@
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<optional>
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<optional>
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<ref name="alias"/>
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<ref name="alias"/>
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</optional>
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</optional>
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<optional>
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<ref name="acpi"/>
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</optional>
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<optional>
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<optional>
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<ref name="address"/>
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<ref name="address"/>
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</optional>
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</optional>
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@ -5287,6 +5326,9 @@
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<optional>
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<optional>
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<ref name="alias"/>
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<ref name="alias"/>
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</optional>
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</optional>
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<optional>
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<ref name="acpi"/>
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</optional>
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<optional>
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<optional>
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<element name="driver">
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<element name="driver">
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<ref name="virtioOptions"/>
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<ref name="virtioOptions"/>
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@ -5389,6 +5431,9 @@
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<optional>
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<optional>
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<ref name="alias"/>
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<ref name="alias"/>
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</optional>
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</optional>
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<optional>
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<ref name="acpi"/>
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</optional>
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<optional>
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<optional>
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<ref name="address"/>
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<ref name="address"/>
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</optional>
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</optional>
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@ -5404,6 +5449,9 @@
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<optional>
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<optional>
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<ref name="alias"/>
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<ref name="alias"/>
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</optional>
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</optional>
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<optional>
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<ref name="acpi"/>
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</optional>
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<optional>
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<optional>
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<ref name="address"/>
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<ref name="address"/>
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</optional>
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</optional>
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@ -5423,6 +5471,9 @@
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<optional>
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<optional>
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<ref name="alias"/>
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<ref name="alias"/>
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</optional>
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</optional>
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<optional>
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<ref name="acpi"/>
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</optional>
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<optional>
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<optional>
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<ref name="address"/>
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<ref name="address"/>
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</optional>
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</optional>
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@ -5454,6 +5505,9 @@
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<optional>
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<optional>
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<ref name="alias"/>
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<ref name="alias"/>
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</optional>
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</optional>
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<optional>
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<ref name="acpi"/>
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</optional>
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<optional>
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<optional>
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<ref name="deviceBoot"/>
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<ref name="deviceBoot"/>
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</optional>
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</optional>
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@ -6425,6 +6479,16 @@
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</element>
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</element>
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</define>
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</define>
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<define name="acpi">
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<element name="acpi">
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<optional>
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<attribute name="index">
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<ref name="unsignedInt"/>
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</attribute>
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</optional>
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</element>
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</define>
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<define name="memorydev">
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<define name="memorydev">
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<element name="memory">
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<element name="memory">
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<attribute name="model">
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<attribute name="model">
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@ -6463,6 +6527,9 @@
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<optional>
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<optional>
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<ref name="alias"/>
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<ref name="alias"/>
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</optional>
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</optional>
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<optional>
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<ref name="acpi"/>
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</optional>
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</interleave>
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</interleave>
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</element>
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</element>
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</define>
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</define>
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@ -6554,6 +6621,9 @@
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<optional>
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<optional>
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<ref name="alias"/>
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<ref name="alias"/>
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</optional>
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</optional>
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<optional>
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<ref name="acpi"/>
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</optional>
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<optional>
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<optional>
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<ref name="address"/>
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<ref name="address"/>
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</optional>
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</optional>
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@ -7546,6 +7616,9 @@
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<optional>
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<optional>
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<ref name="alias"/>
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<ref name="alias"/>
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</optional>
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</optional>
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<optional>
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<ref name="acpi"/>
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</optional>
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<optional>
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<optional>
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<ref name="address"/>
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<ref name="address"/>
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</optional>
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</optional>
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@ -159,6 +159,9 @@ struct _virDomainDeviceInfo {
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/* bootIndex is only used for disk, network interface, hostdev
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/* bootIndex is only used for disk, network interface, hostdev
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* and redirdev devices */
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* and redirdev devices */
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unsigned int bootIndex;
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unsigned int bootIndex;
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/* Valid for any PCI device. Can be used for NIC to get
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* stable numbering in Linux */
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unsigned int acpiIndex;
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/* pciConnectFlags is only used internally during address
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/* pciConnectFlags is only used internally during address
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* assignment, never saved and never reported.
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* assignment, never saved and never reported.
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@ -6335,6 +6335,9 @@ virDomainDeviceInfoFormat(virBufferPtr buf,
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virBufferAddLit(buf, "/>\n");
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virBufferAddLit(buf, "/>\n");
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}
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}
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if (info->acpiIndex != 0)
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virBufferAsprintf(buf, "<acpi index='%u'/>\n", info->acpiIndex);
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if (info->type == VIR_DOMAIN_DEVICE_ADDRESS_TYPE_NONE ||
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if (info->type == VIR_DOMAIN_DEVICE_ADDRESS_TYPE_NONE ||
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info->type == VIR_DOMAIN_DEVICE_ADDRESS_TYPE_VIRTIO_S390)
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info->type == VIR_DOMAIN_DEVICE_ADDRESS_TYPE_VIRTIO_S390)
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/* We're done here */
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/* We're done here */
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@ -6661,6 +6664,7 @@ virDomainDeviceInfoParseXML(virDomainXMLOptionPtr xmlopt,
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g_autofree char *romenabled = NULL;
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g_autofree char *romenabled = NULL;
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g_autofree char *rombar = NULL;
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g_autofree char *rombar = NULL;
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g_autofree char *aliasStr = NULL;
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g_autofree char *aliasStr = NULL;
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g_autofree char *acpiIndex = NULL;
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VIR_XPATH_NODE_AUTORESTORE(ctxt)
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VIR_XPATH_NODE_AUTORESTORE(ctxt)
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virDomainDeviceInfoClear(info);
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virDomainDeviceInfoClear(info);
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@ -6709,6 +6713,14 @@ virDomainDeviceInfoParseXML(virDomainXMLOptionPtr xmlopt,
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}
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}
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}
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}
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acpiIndex = virXPathString("string(./acpi/@index)", ctxt);
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if (acpiIndex &&
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virStrToLong_ui(acpiIndex, NULL, 10, &info->acpiIndex) < 0) {
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virReportError(VIR_ERR_XML_ERROR,
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_("Cannot parse ACPI index value '%s'"), acpiIndex);
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goto cleanup;
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}
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if ((address = virXPathNode("./address", ctxt)) &&
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if ((address = virXPathNode("./address", ctxt)) &&
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virDomainDeviceAddressParseXML(address, info) < 0)
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virDomainDeviceAddressParseXML(address, info) < 0)
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goto cleanup;
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goto cleanup;
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@ -22193,6 +22205,13 @@ virDomainDeviceInfoCheckABIStability(virDomainDeviceInfoPtr src,
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break;
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break;
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}
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}
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if (src->acpiIndex != dst->acpiIndex) {
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virReportError(VIR_ERR_CONFIG_UNSUPPORTED,
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_("Target ACPI index '%u' does not match source '%u'"),
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dst->acpiIndex, src->acpiIndex);
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return false;
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}
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return true;
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return true;
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}
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}
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Loading…
Reference in New Issue
Block a user