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20.3. SMBIOS System Information
Some hypervisors allow control over what system information is presented to the guest virtual machine (for example, SMBIOS fields can be populated by a hypervisor and inspected using the
midecode command in the guest virtual machine). The optional sysinfo element covers all such categories of information.
...
<os>
<smbios mode='sysinfo'/>
...
</os>
<sysinfo type='smbios'>
<bios>
<entry name='vendor'>LENOVO</entry>
</bios>
<system>
<entry name='manufacturer'>Fedora</entry>
<entry name='vendor'>Virt-Manager</entry>
</system>
</sysinfo>
...
Figure 20.5. SMBIOS system information
The
<sysinfo> element has a mandatory attribute type that determines the layout of sub-elements, and may be defined as follows:
smbios- Sub-elements call out specific SMBIOS values, which will affect the guest virtual machine if used in conjunction with the smbios sub-element of the<os>element. Each sub-element of sysinfo names a SMBIOS block, and within those elements can be a list of entry elements that describe a field within the block. The following blocks and entries are recognized:bios- This is block 0 of SMBIOS, with entry names drawn fromvendor,version,date, andrelease.<system>- This is block 1 of SMBIOS, with entry names drawn frommanufacturer,product,version,serial,uuid,sku, andfamily. If auuidentry is provided alongside a top-level uuid element, the two values must match.
