Page MenuHomeFreeBSD

xen/intr: arm64: implement Xen event balancing
Needs ReviewPublic

Authored by on Aug 26 2021, 4:29 AM.



This distributes the event channels among processors instead of placing
all of them on vCPU#0. Normal interrupt sources are balanced once, at
the end of the boot process. Since new event channels can be created
any time, they need to be dynamically balanced.

Diff Detail

rS FreeBSD src repository - subversion
Lint OK
No Unit Test Coverage
Build Status
Buildable 41224
Build 38113: arc lint + arc unit

Event Timeline

This is a child of D31063, but not a parent of D30950. The reason being D31063 introduces the function modified in D31690. While Xen/ARM64 VMs may have low performance without D31690, they will function, thus it is reasonable to enable Xen/ARM64 without this commit.

Updating given updates elsewhere. This is the set isrc->xi_cpu approach.