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Vmbus_synic_setup() is invoked via vmbus_intrhook -> vmbus_doattach -> smp_rendezvous. On !EARLY_AP_STARTUP (e.g., aarch64), SMP isn't functional in intrhooks and smp_rendezvous() will just call vmbus_synic_setup() on the boot processor. There's nothing that will initialize the pcpu data on every other AP. To fix it we need to use SI_SUB_SMP for vmbus_doattach(). With this patch the vmbus interrupt should work on all arm64 cpus on HyperV. Reported by: kevans Reviewed by: kevans, whu Tested by: Souradeep Chakrabarti <schakrabarti@microsoft.com> Obtained from: Souradeep Chakrabarti <schakrabarti@microsoft.com> Sponsored by: Microsoft Differential Revision: https://reviews.freebsd.org/D40279 |
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| hvsock | ||
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| input | ||
| netvsc | ||
| pcib | ||
| storvsc | ||
| utilities | ||
| vmbus | ||