From mboxrd@z Thu Jan  1 00:00:00 1970
From: Paolo Bonzini <pbonzini@redhat.com>
Subject: Re: [PATCH/RFC] KVM: track pid for VCPU only on KVM_RUN ioctl
Date: Tue, 19 Aug 2014 14:06:37 +0200
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Cc: Christian Borntraeger <borntraeger@de.ibm.com>,
	KVM <kvm@vger.kernel.org>, Gleb Natapov <gleb@kernel.org>,
	Rik van Riel <riel@redhat.com>,
	Raghavendra K T <raghavendra.kt@linux.vnet.ibm.com>,
	Michael Mueller <mimu@linux.vnet.ibm.com>
To: David Hildenbrand <dahi@linux.vnet.ibm.com>
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Il 19/08/2014 13:28, David Hildenbrand ha scritto:
> Looking at the code, kvm_cpu_synchronize_state() seems to do these ioctls in
> the vcpu thread (e.g. comming from cpu_synchronize_all_states()), any reasons
> why kvm_cpu_synchronize_post_reset() doesn't do the same (e.g. called from
> cpu_synchronize_all_post_reset())?

No reason, feel free to post a patch for QEMU kvm-all.c.
Documentation/virtual/kvm/api.txt clearly says:

   Only run vcpu ioctls from the same thread that was used to create the
   vcpu.

Paolo