[libvirt] [PATCH 0/8 v2] Glue domain and storage
John Ferlan
jferlan at redhat.com
Sat Apr 6 00:47:42 UTC 2013
On 04/05/2013 12:30 PM, Osier Yang wrote:
> Like 7/8, 8/8, 9/8, there must be many places which also should be
> modified to not prevent the new volume type disk out of the door,
> but it's hard to find them out at once, disk related stuffs are always
> hairy. Anyway, it doesn't affect to let the basic go in first, because
> they are all additions, which are unlikely to introduce regressions.
> so please give reviewing. Thanks.
Better to find them now though, right! Seems you could use cscope to
search on uses of VIR_DOMAIN_DISK_TYPE_BLOCK and others to ensure you
cover as many cases as possible.
John
>
> On 05/04/13 03:37, Osier Yang wrote:
>> This is the 4th part to implement NPIV migration support [1].
>>
>> Part 1 and part 2 are pushed.
>>
>> Part 3 (v3: pending for review):
>> https://www.redhat.com/archives/libvir-list/2013-March/msg01440.html
>>
>> ======
>>
>> This introduces new XMLs to specify the disk source with storage like
>>
>> <disk type='volume' device='disk'>
>> <driver name='qemu' type='raw' cache='none'/>
>> <source pool="$pool_name" volume='$vol_name'/>
>> <seclabel relabel='no'/>
>> </source>
>> <target dev='vdb' bus='virtio'/>
>> </disk>
>>
>> And before domain starting, and disk attaching/updating, the source
>> represented
>> by storage is translated into the real underlying storage volume.
>>
>> Future work:
>> * Support network volume
>> * Support disk backing chain?
>>
>> v1 - v2:
>> * Invoke storage APIs to translate the source directly in qemu driver
>> * 1/8 in v1 is pushed.
>> * 2/8 in v1 is splitted (the code refactoring now is a standalone
>> patch)
>> * Support shared disk for volume type disk
>> * Support sgio setting for volume type disk
>> * No network volume support in v2
>> RFC - v1:
>> * The XMLs are more simpler - only using pool name and volume
>> name to specify disk source.
>> * Support network pool (rbd, and sheepdog)
>> * Support startupPolicy for volume type disk
>> * Support seclabels for volume type disk
>> * Fix bugs on disk source formating
>>
>> Osier Yang (8):
>> conf: New helper virDomainDiskSourceDefFormat to format the disk
>> source
>> Introduce new XMLs to specify disk source using libvirt storage
>> qemu: Translate the pool disk source when building drive string
>> Support startupPolicy for 'volume' disk
>> Support seclabels for volume type disk
>> qemu: Translate the pool disk source earlier
>> qemu: Support shareable volume type disk
>> qemu: Support sgio setting for volume type disk
>>
>> docs/formatdomain.html.in | 28 ++-
>> docs/schemas/domaincommon.rng | 24 ++
>> src/conf/domain_conf.c | 274
>> ++++++++++++++-------
>> src/conf/domain_conf.h | 10 +
>> src/qemu/qemu_command.c | 32 +++
>> src/qemu/qemu_command.h | 1 -
>> src/qemu/qemu_conf.c | 68 ++++-
>> src/qemu/qemu_conf.h | 3 +
>> src/qemu/qemu_domain.c | 4 +-
>> src/qemu/qemu_driver.c | 16 +-
>> src/qemu/qemu_process.c | 14 +-
>> .../qemuxml2argv-disk-source-pool.xml | 37 +++
>> tests/qemuxml2xmltest.c | 1 +
>> 13 files changed, 406 insertions(+), 106 deletions(-)
>> create mode 100644
>> tests/qemuxml2argvdata/qemuxml2argv-disk-source-pool.xml
>>
>
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