Handle long device names when creating QEMU device tags#13516
Handle long device names when creating QEMU device tags#13516tomponline merged 4 commits intocanonical:mainfrom
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Please can this be rebased too |
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@tomponline This is ready again. Sorry @ru-fu this was my mistake, I believe your help is not needed for this one. |
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@hamistao please can you confirm that no device name that previously worked has been changed when passed to qemu, and only longer device names that didn't work previously are now hashed?
Signed-off-by: hamistao <[email protected]>
…tdevs Signed-off-by: hamistao <[email protected]>
Signed-off-by: hamistao <[email protected]>
Signed-off-by: hamistao <[email protected]>
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@tomponline Yes, I can. I ran some tests to confirm and any name up to 27 chars is not being hashed. |
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@tomponline To be more specific, some tags have a limit of 31 chars and others have a limit of 36. The shorter tags are only used during cold-plugging, so a hot-plugged device could work with the limit of 36 (until VM restart) but not a cold-plugged one. So I chose 31 as the limit to maintain a standard and keep the code simpler. If you think it is best, I could use different limits for each case as to not alter the behavior in the hot-plugging scenario. |
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Fixes #13495.
Helps to avoid problems with these tests.
The old
blockNodeNamefunction was modified, renamed and repurposed to also help generating device tags for QEMU.