From: Paolo Bonzini <pbonzini@redhat.com>
To: Alexander Binun <binun@cs.bgu.ac.il>,
Stefan Hajnoczi <stefanha@gmail.com>
Cc: kahilm@post.bgu.ac.il, boaz.menuhin@gmail.com,
markbl@post.bgu.ac.il, qemu-devel@nongnu.org
Subject: Re: [Qemu-devel] kill /destroy a VM - help
Date: Thu, 06 Mar 2014 12:28:34 +0100 [thread overview]
Message-ID: <53185BE2.4080101@redhat.com> (raw)
In-Reply-To: <201403061031.s26AVWJL012337@indigo.cs.bgu.ac.il>
Il 06/03/2014 11:31, Alexander Binun ha scritto:
> Then - more questions :
> 1. How can I access the Qemu process (relevant to a given VM) from within in the kernel context (being in a kernel module) ?
The struct pid for the VCPU is in the "pid" field of struct kvm_vcpu.
From there if needed you can get the task (with pid_task) and the
task's thread group leader (the task's group_leader), and send a signal
to it.
> 2. Should I uninitialize some internal structures for the VM being killed ?
No, it will happen automatically. When QEMU is terminated, the VM's
file descriptor is closed and this frees all internal structures.
> 3. My module detects malicious activities at a VCPU. How can one get the VM owning this VCPU ?
Field "kvm" in struct kvm_vcpu points to the struct kvm for the VM.
Paolo
next prev parent reply other threads:[~2014-03-06 11:28 UTC|newest]
Thread overview: 23+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-10-07 14:47 [Qemu-devel] sniffing traffic between VMs Alexander Binun
2013-10-10 9:02 ` Stefan Hajnoczi
2013-10-10 11:00 ` [Qemu-devel] kvm binary is deprecated Alexander Binun
2013-10-11 9:05 ` Stefan Hajnoczi
2013-10-12 14:45 ` Alexander Binun
2013-10-14 9:12 ` Stefan Hajnoczi
2013-10-14 10:36 ` Alexander Binun
2013-10-14 14:16 ` Stefan Hajnoczi
2013-10-24 9:23 ` [Qemu-devel] kvm binary is deprecated - solved! Alexander Binun
2013-10-24 9:49 ` Stefan Hajnoczi
2013-10-24 9:54 ` [Qemu-devel] observing VM actions Alexander Binun
2013-12-18 11:53 ` [Qemu-devel] sniffing traffic between virtual machines Alexander Binun
2013-12-19 9:05 ` Stefan Hajnoczi
2014-03-05 16:35 ` [Qemu-devel] kill /destroy a VM - help Alexander Binun
2014-03-06 10:22 ` Stefan Hajnoczi
2014-03-06 10:31 ` Alexander Binun
2014-03-06 11:28 ` Paolo Bonzini [this message]
2014-03-06 15:54 ` [Qemu-devel] kill /destroy a VM - still hangs! Alexander Binun
2014-03-09 15:40 ` [Qemu-devel] trying to kill a VM Alexander Binun
2014-03-13 12:59 ` [Qemu-devel] different IDTs of the same VCPU Alexander Binun
2014-03-13 15:15 ` Paolo Bonzini
2014-03-17 11:54 ` Alexander Binun
2014-03-17 12:20 ` Paolo Bonzini
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