On 04.11.2015 23:04, Paolo Bonzini wrote:
On 04/11/2015 22:33, Gerhard Wiesinger wrote:
What is the problem you are seeing? KVM can emulate task switches; the
intercept is set here because of a processor erratum that can mess them
up even though, in theory, AMD supports task switching from guest mode.
See old thread:
https://lists.nongnu.org/archive/html/qemu-devel/2012-04/msg01506.html
Can you obtain the traces you were asked for at the time?
./trace-cmd record -b 20000 -e kvm
./trace-cmd report | grep -i task_switch
qemu-system-x86-6024 [001] 792774.719297: kvm_exit: reason
task_switch rip 0x4883 info 158 4000000000
But I can't interpret it. But I know my patch works well. Since it is
just a module parameter it is fully backward compatible by default and
because of the one liner no side effects are possible. So a intergration
would be good.
Ciao,
Gerhard
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