Jan Kiszka wrote:
Avi Kivity wrote:
Jan Kiszka wrote:
This nice little buglet complicates a smarter slot management in qemu
user space just "slightly". Sigh...
-------->
When checking for overlapping slots on registration of a new one, kvm
currently also considers zero-length (ie. deleted) slots and rejects
requests incorrectly. This finally denies user space from joining slots.
Fix the check by skipping deleted slots.
Can userspace fail gracefully when the bug is present? If not, the you
should add a KVM_CAP_ to advertise the fix; without the capability don't
attempt the smarter slot management.
I already thought about adding some
KVM_CAP_DESTROY_MEMORY_REGION_NOW_REALLY_WORKS and skip the workaround
in [1]. Maybe a good idea, comments welcome.
It's a good idea regardless of how qemu handles it. There can be other
users.
--
error compiling committee.c: too many arguments to function
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