NOVA: Vancouver gets stuck

[nfeske]

With recent versions of base-nova, the port of the Vancouver VMM is not working any longer. At the startup, it gets stuck with the following error:

[init -> vancouver] VMM: RESET device state
[init -> vancouver] VMM: MessageLegacy::RESET requested
[init -> vancouver] VMM: OP_VCPU_RELEASE
[init -> vancouver] VMM: INIT done
[init -> vancouver] VMM: reset CPU from c mtr_in effff
[ 0] Killed EC:0xc1380660 SC:0xc13ef380 V:0xff CR0:0x10 CR3:0x0 CR4:0x0 (PT not found)

I was able to pinpoint the problem to commit a4cac75. Prior this commit, Vancouver booted up fine. Reverting this commit from current genodelabs/master (b2478ae) seems to solve the problem.

[udosteinberg]

The bug is not in the pinpointed commit. That commit fixes the binding to correctly issue a RECALL hypercall. What the kill message says is that there is no recall portal established; therefore the EC must die.
The correct fix is to establish a portal for the RECALL event and to handle the event properly.