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* [Qemu-devel] TCG question reg. tcg_cpu_exec()
@ 2016-03-14 15:26 Pranith Kumar
  2016-03-25 15:01 ` Paolo Bonzini
  0 siblings, 1 reply; 2+ messages in thread
From: Pranith Kumar @ 2016-03-14 15:26 UTC (permalink / raw)
  To: Paolo Bonzini; +Cc: qemu-devel

Hello Paolo,

I have a question reg. tcg_cpu_exec(cpu) which is called from tcg_exec_all().

tcg_cpu_exec() is called for each cpu in a loop. I observed that this
call does not always execute TBs on that particular CPU. It return
because the exit_request is set.

I am trying to understand what scenarios can result in no TBs
executing for that CPU. My understanding is that there is a pending
operation which needs to be handled before we can execute TBs from
this CPU(I/O?).

Can you please explain what is happening or point me to the relevant
portions of the code I need to look at to understand why this is
happening?

Thanks!
-- 
Pranith

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2016-03-14 15:26 [Qemu-devel] TCG question reg. tcg_cpu_exec() Pranith Kumar
2016-03-25 15:01 ` Paolo Bonzini

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