linux-kernel - Re: [PATCH] Move VMEnter and VMExit tracepoints closer to the actual event

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Message-ID: <c30bfb44-2dc7-cb9c-c038-5ab08f611586@redhat.com>
Date:   Fri, 28 May 2021 18:57:42 +0200
From:   Paolo Bonzini <pbonzini@...hat.com>
To:     Dario Faggioli <dfaggioli@...e.com>,
        Sean Christopherson <seanjc@...gle.com>,
        Stefano De Venuto <stefano.devenuto99@...il.com>
Cc:     linux-kernel@...r.kernel.org, vkuznets@...hat.com,
        wanpengli@...cent.com, jmattson@...gle.com, x86@...nel.org,
        hpa@...or.com, kvm@...r.kernel.org, rostedt@...dmis.org,
        y.karadz@...il.com
Subject: Re: [PATCH] Move VMEnter and VMExit tracepoints closer to the actual
 event

On 28/05/21 18:55, Dario Faggioli wrote:
> So, Paolo, just to be sure, when you said "the tracepoint on SVM could
> match the clgi/stgi region", did you mean they should be outside of
> this region (i.e., trace_kvm_enter() just before clgi() and
> trace_kvm_exit() after stgi())? Or vice versa?:-)

Just outside, yes.

Paolo