On Mon, Jul 20, 2009 at 12:51:12PM +0100, Mark McLoughlin wrote:
When we hot-plug a disk device into a qemu guest, we need to retain its PCI address so that it can be removed again later. Currently, we do retain the slot number, but not across libvirtd restarts.
Add <state devaddr="xxxx:xx:xx"/> to the disk device XML config when the VIR_DOMAIN_XML_INTERNAL_STATUS flag is used. We still don't parse the domain and bus number, but the format allows us to do that in future.
* src/domain_conf.h: replace slotnum with pci_addr
diff --git a/src/domain_conf.h b/src/domain_conf.h index 6e111fa..1766b61 100644 --- a/src/domain_conf.h +++ b/src/domain_conf.h @@ -106,7 +106,7 @@ struct _virDomainDiskDef { int cachemode; unsigned int readonly : 1; unsigned int shared : 1; - int slotnum; /* pci slot number for unattach */ + char *pci_addr; /* for detach */ };
I think it'd be nicer to store the parsed address here as a nested struct with domain, bus, slot. It is not really saving us trouble by using a string, since most of the places using this field end up asprintf'ing it into another string, or even having to extract pieces out of it again. Daniel -- |: Red Hat, Engineering, London -o- http://people.redhat.com/berrange/ :| |: http://libvirt.org -o- http://virt-manager.org -o- http://ovirt.org :| |: http://autobuild.org -o- http://search.cpan.org/~danberr/ :| |: GnuPG: 7D3B9505 -o- F3C9 553F A1DA 4AC2 5648 23C1 B3DF F742 7D3B 9505 :|