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#openstack-nova - 2025-01-28
16:34:14 sean-k-mooney but it can be proposed for next cycle if the hardware is aviable
16:34:47 sean-k-mooney we only merge hardware enabling code after the hardware is generally aviabel in teh market not before
16:34:51 bauzas yes indeed, there are a few limitations that you should be aware
16:35:17 r-taketn To our knowledge, no products currently support Arm CCA. FUJITSU-MONAKA [1], scheduled for release by Fujitsu in 2027, may be the first such product.
16:35:20 bauzas usually, we would want to make sure that our upstream CI can test specific hardware
16:35:46 bauzas if specific hardware can't be tested on upstream CI, then there are two possibilities :
16:36:35 bauzas 1/ either you're able to test nova against fake hardware that reproduces the hardware behaviour
16:36:49 bauzas 2/ or you have to provide third-party CI
16:38:37 sean-k-mooney while 2 is preferd it much more overhead btu actull tests that the feature works end to end
16:38:46 r-taketn Does this mean that if we submit third-party CI and comprehensive test results, there is a possibility that they will be merged before the hardware release?
16:38:55 sean-k-mooney no
16:39:28 sean-k-mooney we have strictly applied the requriemetn that hardware is released before its enabeld in the past. we coudl change that
16:39:34 sean-k-mooney but it would eb a break with precedent
16:39:52 sean-k-mooney we also require that any kernel/qemu/libivrt supprot is in a public offcial release
16:40:02 sean-k-mooney so if this requires qemu changes
16:40:08 sean-k-mooney or libvirt
16:40:23 sean-k-mooney those must be in a public offical release formr that upstream proejct before we can enabel it in nova
16:41:07 r-taketn ok, i understood.
16:41:08 sean-k-mooney is arm CCA supported in the kernel, qemu and libvirt today
16:41:56 r-taketn no. LinuxKernel, qemu and libvirt are being developed now.
16:42:22 sean-k-mooney if you want to propose poc patches and prepare them that is fine
16:42:41 sean-k-mooney but we cant merge them until the deps are resolved
16:42:56 bauzas indeed, nothing blocks you to create a feature branch that you could use for your own testing
16:44:17 bauzas what I could suggest you is to come back to us as soon as kernel, QEMU and libvirt versions are released upstream so then we can discuss the alternatives
16:44:49 sean-k-mooney just looking at https://patchwork.kernel.org/project/qemu-devel/cover/20240419155709.318866-2-jean-philippe@linaro.org/
16:44:54 bauzas but I strongly suggest you to invest a bit of your time into providing a testing kernel framework that could mock any specific hardware
16:44:56 sean-k-mooney it nodes that
16:45:02 sean-k-mooney Enabled support for guest memfd by Xiaoyao Li and Chao Peng [3].
16:45:04 sean-k-mooney Guest memfd is mandatory for CCA.
16:45:14 sean-k-mooney nova does not supprot memfd currently
16:45:36 sean-k-mooney so there may be other work that is required and we wont knwo that until the qemu/libvirt work is complete
16:46:26 r-taketn I got it. I understood that merging of LinuxKernel, qemu and libvirt are prerequisite.
16:46:30 bauzas which I assume is the reason why r-taketn wants to work on nova
16:46:57 sean-k-mooney well adressing thing like supprotign memfd which is pretty simiple coudl be done independetly
16:47:29 sean-k-mooney we considered addign supprot for it to enabel the manial share attachment feature without hugepages or file backed memory
16:47:48 sean-k-mooney so there may be some work that can be doen without wiating for the hardware.
16:48:15 sean-k-mooney perhaps we can discss this after the meeting if needed
16:49:07 opendevreview Artom Lifshitz proposed openstack/nova master: WIP: Add hw:tpm_secret_security extra spec validation https://review.opendev.org/c/openstack/nova/+/940197
16:49:07 opendevreview Artom Lifshitz proposed openstack/nova master: WIP: Add hw_tpm_secret_security image property https://review.opendev.org/c/openstack/nova/+/940196
16:49:08 opendevreview Artom Lifshitz proposed openstack/nova master: WIP: Allow vTPM live migrations for admins https://review.opendev.org/c/openstack/nova/+/925771
16:49:50 r-taketn ok. I'll rethink the strategy. It would be helpful if you could let us discuss it on the mailing list, etc.
16:50:34 sean-k-mooney you are definetly free too
16:50:37 bauzas sure, r-taketn are you familiar with our release cadence ?
16:51:10 sean-k-mooney this could also be a good topic for a future PTG
16:51:30 sean-k-mooney i know other are also interested in confindcial computing in general
16:51:53 r-taketn I have read and understand the Eproxy Release Schedule.
16:53:21 bauzas r-taketn: the PTG dates for the next release were recently announced
16:53:47 bauzas PTG is a virtual event occuring a couple of days where we usually chat about feature requests
16:54:13 bauzas as sean-k-mooney said, it could be one item worth speaking about
16:54:41 bauzas anyway, we're almost at time, so we need to wrap
16:54:45 r-taketn I would like to attend PTG and discuss it.
16:55:28 fwiesel ls
16:57:30 bauzas r-taketn: then please continue to look at the mailing-list, you'll see some emails about the next steps
16:58:22 bauzas our agenda is pretty free-form, as soon as we draft some ptg etherpad you should be able to add your topic
16:58:32 bauzas ok, that's it for now
16:58:34 r-taketn Ok. Thank you for discussing.
16:58:41 bauzas any other item to cover ?
16:59:08 gibi -
16:59:21 bauzas okay then thanks all
16:59:26 opendevmeet Log: https://meetings.opendev.org/meetings/nova/2025/nova.2025-01-28-16.00.log.html
16:59:26 opendevmeet Minutes (text): https://meetings.opendev.org/meetings/nova/2025/nova.2025-01-28-16.00.txt
16:59:26 opendevmeet Minutes: https://meetings.opendev.org/meetings/nova/2025/nova.2025-01-28-16.00.html
16:59:26 opendevmeet Meeting ended Tue Jan 28 16:59:26 2025 UTC. Information about MeetBot at http://wiki.debian.org/MeetBot . (v 0.1.4)
16:59:26 bauzas #endmeeting
16:59:46 fwiesel Thanks, and sorry for the noise.
16:59:56 masahito thank you
17:02:31 gibi thanks
17:12:47 gibi bauzas, dansmith, melwitt, sean-k-mooney: I just discovered that we missed the rebuild API action response when we considered the image properties in server details https://review.opendev.org/c/openstack/nova/+/939649/4#message-7d57a602cdd025a52c15c2470091baa6f0ee0340
17:12:58 gibi would you be OK to amend the spec with this impact?
17:16:18 gibi I need to drop soon but I will read back
17:21:09 priteau bauzas and sean-k-mooney, could you please review this backport? Same as yesterday but for Bobcat: https://review.opendev.org/c/openstack/nova/+/940272
17:21:59 dviroel gibi: i hit the same issue in https://review.opendev.org/c/openstack/nova/+/938604 - so the same decision should also impact the scheduler_hints spec...
17:25:53 bauzas gibi: I need to reload the context but if you ask for updating a spec post-approval-freeze, that's absolutely fine to me
17:29:45 sean-k-mooney priteau: +2
17:53:46 dansmith gibi: yep, commented
18:05:02 opendevreview Stephen Finucane proposed openstack/nova master: api: Only check minimum API version https://review.opendev.org/c/openstack/nova/+/940325
18:05:11 stephenfin sean-k-mooney: took a different approach ^
18:06:06 sean-k-mooney ya that could work as well. although if your only checkign the min version why is it not positional
18:06:45 stephenfin It effectively is. Do you mean using the forward slash operator?
18:06:47 sean-k-mooney this https://review.opendev.org/c/openstack/nova/+/940325/1/nova/api/openstack/api_version_request.py#300 does not need to be a kw arg
18:07:17 stephenfin I don't understand the question? Are you thinking Python here or Go? :D
18:07:41 sean-k-mooney in python
18:07:48 sean-k-mooney if we always expect to pass version
18:07:52 sean-k-mooney instead of is_supported(req, version=_MIN_API_VERSION):
18:07:56 stephenfin Oh
18:08:01 sean-k-mooney it should be is_supported(req, version):
18:08:20 stephenfin Okay, you were asking why does it take a default
18:08:21 sean-k-mooney you just dont call this if your not enforcing a min right?
18:08:31 sean-k-mooney yes
18:08:32 stephenfin yup, 100%. Good call
18:08:44 opendevreview Stephen Finucane proposed openstack/nova master: api: Only check minimum API version https://review.opendev.org/c/openstack/nova/+/940325
18:08:57 stephenfin Done. Thanks
18:09:41 sean-k-mooney ok so for make you just using not min
18:09:47 sean-k-mooney ya that works
18:10:03 stephenfin Like I said, if you really want a max check just negate the call
18:10:25 sean-k-mooney well i was just reviewing https://review.opendev.org/c/openstack/nova/+/940325/2/nova/api/openstack/compute/create_backup.py#68
18:10:28 sean-k-mooney where your doing that
18:10:52 stephenfin I'm nothing if not consistent
18:11:38 sean-k-mooney +1 for now i looked at the first couple of files and ill loop back to it once i have reveiewd the previosu patches
18:14:49 sean-k-mooney sicne your here why did you add a bunch of commans an reflow things in https://review.opendev.org/c/openstack/nova/+/936369/7/nova/api/validation/parameter_types.py

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