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From: Paolo Bonzini <pbonzini@redhat.com>
To: Hebbal Yacine <y_hebbal@esi.dz>
Cc: kvm@vger.kernel.org, Wanpeng Li <wanpeng.li@hotmail.com>
Subject: Re: Difference between vcpu_load and kvm_sched_in ?
Date: Wed, 21 Oct 2015 12:25:43 +0200	[thread overview]
Message-ID: <56276827.2040900@redhat.com> (raw)
In-Reply-To: <CACEoar52w8qU2bbSTGKJdq++jz3gppLQ0N-xqsS-pnYMNnaK3Q@mail.gmail.com>



On 21/10/2015 12:17, Hebbal Yacine wrote:
> Thanks for the explanation, it's very clear.
> I tired that but I didn't succeed to send the ioctl from "run_on_cpu"
> function, I didn't find how to set the right CPUStat
> I've tried "current_cpu"

Current_cpu is always NULL outside the VCPU thread.

> 
> kvm_main.c:
> 
> // yacine.begin
> 
> static void do_vmi_start_kvm_ioctl(void *type) {
>     printf("do_vmi_start_kvm_ioctl\n");
>     kvm_vm_ioctl(kvm_state, type);

Are you sure you want a VM ioctl and not a VCPU ioctl?  Or perhaps a VM
ioctl to do generic processing, and a VCPU ioctl that is then sent to
all VCPUs?

If you use a VCPU ioctl, you can use CPU_FOREACH or a for loop to
iterate over all VCPUs.

Paolo

  parent reply	other threads:[~2015-10-21 10:25 UTC|newest]

Thread overview: 9+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2015-10-20  9:57 Difference between vcpu_load and kvm_sched_in ? Yacine
2015-10-20 15:44 ` Paolo Bonzini
2015-10-20 22:57   ` Wanpeng Li
2015-10-21  6:46     ` Paolo Bonzini
2015-10-21 10:20       ` Yacine HEBBAL
2015-10-22  7:33       ` Wanpeng Li
     [not found]   ` <CACEoar52w8qU2bbSTGKJdq++jz3gppLQ0N-xqsS-pnYMNnaK3Q@mail.gmail.com>
2015-10-21 10:25     ` Paolo Bonzini [this message]
2015-10-21 17:21       ` Yacine HEBBAL
2015-10-22  9:37         ` Paolo Bonzini

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