Messages in this thread | | | Subject | Re: [PATCH v3 1/9] context_tracking: Move guest exit context tracking to separate helpers | From | Christian Borntraeger <> | Date | Tue, 20 Apr 2021 20:48:05 +0200 |
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On 16.04.21 00:20, Sean Christopherson wrote: > From: Wanpeng Li <wanpengli@tencent.com> > > Provide separate context tracking helpers for guest exit, the standalone > helpers will be called separately by KVM x86 in later patches to fix > tick-based accounting. > > Suggested-by: Thomas Gleixner <tglx@linutronix.de> > Cc: Thomas Gleixner <tglx@linutronix.de> > Cc: Sean Christopherson <seanjc@google.com> > Cc: Michael Tokarev <mjt@tls.msk.ru> > Cc: Christian Borntraeger <borntraeger@de.ibm.com> > Signed-off-by: Wanpeng Li <wanpengli@tencent.com> > Co-developed-by: Sean Christopherson <seanjc@google.com> > Signed-off-by: Sean Christopherson <seanjc@google.com>
Reviewed-by: Christian Borntraeger <borntraeger@de.ibm.com> > --- > include/linux/context_tracking.h | 9 ++++++++- > 1 file changed, 8 insertions(+), 1 deletion(-) > > diff --git a/include/linux/context_tracking.h b/include/linux/context_tracking.h > index bceb06498521..200d30cb3a82 100644 > --- a/include/linux/context_tracking.h > +++ b/include/linux/context_tracking.h > @@ -131,10 +131,15 @@ static __always_inline void guest_enter_irqoff(void) > } > } > > -static __always_inline void guest_exit_irqoff(void) > +static __always_inline void context_tracking_guest_exit_irqoff(void) > { > if (context_tracking_enabled()) > __context_tracking_exit(CONTEXT_GUEST); > +} > + > +static __always_inline void guest_exit_irqoff(void) > +{ > + context_tracking_guest_exit_irqoff(); > > instrumentation_begin(); > if (vtime_accounting_enabled_this_cpu()) > @@ -159,6 +164,8 @@ static __always_inline void guest_enter_irqoff(void) > instrumentation_end(); > } > > +static __always_inline void context_tracking_guest_exit_irqoff(void) { } > + > static __always_inline void guest_exit_irqoff(void) > { > instrumentation_begin(); >
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