linux-kernel - RE: [RFC PATCH 0/2] KVM: VMX: Fix VM entry failure on PT_MODE_HOST

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Message-ID: <CY5PR11MB6365DFC5D715E87E951A63F0DC409@CY5PR11MB6365.namprd11.prod.outlook.com>
Date:   Thu, 8 Sep 2022 08:53:06 +0000
From:   "Wang, Wei W" <wei.w.wang@...el.com>
To:     "Li, Xiaoyao" <xiaoyao.li@...el.com>,
        Peter Zijlstra <peterz@...radead.org>,
        Arnaldo Carvalho de Melo <acme@...nel.org>,
        "Mark Rutland" <mark.rutland@....com>,
        Alexander Shishkin <alexander.shishkin@...ux.intel.com>,
        Jiri Olsa <jolsa@...nel.org>,
        "Namhyung Kim" <namhyung@...nel.org>,
        "Christopherson,, Sean" <seanjc@...gle.com>,
        Paolo Bonzini <pbonzini@...hat.com>
CC:     "linux-perf-users@...r.kernel.org" <linux-perf-users@...r.kernel.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "kvm@...r.kernel.org" <kvm@...r.kernel.org>
Subject: RE: [RFC PATCH 0/2] KVM: VMX: Fix VM entry failure on
 PT_MODE_HOST_GUEST while host is using PT

On Thursday, September 8, 2022 3:26 PM, Li, Xiaoyao wrote:
> > +
> > +struct perf_event *pt_get_curr_event(void) {
> > +       struct pt *pt = this_cpu_ptr(&pt_ctx);
> 
> Wei,
> 
> I'm not sure if we can use pt->handle.event instead or not.
> 
> > +       return pt->event;

Yes, I think we could reuse that.