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Signed-off-by: Volodymyr Babchuk --- tools/xentrace/xenalyze.c | 37 +++++++++++++++++++++++++++++++++++++ xen/common/sched/core.c | 9 +++++++++ xen/include/public/trace.h | 5 +++++ 3 files changed, 51 insertions(+) diff --git a/tools/xentrace/xenalyze.c b/tools/xentrace/xenalyze.c index b7f4e2bea8..bcde830f0e 100644 --- a/tools/xentrace/xenalyze.c +++ b/tools/xentrace/xenalyze.c @@ -7546,6 +7546,43 @@ void sched_process(struct pcpu_info *p) printf("\n"); } break; + case TRC_SCHED_IRQ_ENTRY: + case TRC_SCHED_IRQ_LEAVE: + if(opt.dump_all) + { + struct { + unsigned int nesting; + } *r =3D (typeof(r))ri->d; + + printf(" %s sched_irq_%s nesting =3D %u\n", ri->dump_heade= r, + ri->event =3D=3D TRC_SCHED_IRQ_ENTRY ? "entry":"lea= ve", + r->nesting); + } + break; + case TRC_SCHED_HYP_ENTRY: + case TRC_SCHED_HYP_LEAVE: + if(opt.dump_all) + { + struct { + unsigned int domid, vcpuid; + } *r =3D (typeof(r))ri->d; + + printf(" %s sched_hyp_%s d%uv%u\n", ri->dump_header, + ri->event =3D=3D TRC_SCHED_HYP_ENTRY ? "entry":"lea= ve", + r->domid, r->vcpuid); + } + break; + case TRC_SCHED_TIME_ADJ: + if(opt.dump_all) + { + struct { + unsigned int irq, hyp; + } *r =3D (typeof(r))ri->d; + + printf(" %s sched time adjust IRQ %uns HYP %uns Total %uns= \n", ri->dump_header, + r->irq, r->hyp, r->irq + r->hyp); + } + break; case TRC_SCHED_CTL: case TRC_SCHED_S_TIMER_FN: case TRC_SCHED_T_TIMER_FN: diff --git a/xen/common/sched/core.c b/xen/common/sched/core.c index ee6b1d9161..9e82a6a22b 100644 --- a/xen/common/sched/core.c +++ b/xen/common/sched/core.c @@ -925,6 +925,8 @@ void vcpu_begin_irq_handler(void) if (is_idle_vcpu(current)) return; =20 + TRACE_1D(TRC_SCHED_IRQ_ENTRY, current->irq_nesting); + /* XXX: Looks like ASSERT_INTERRUPTS_DISABLED() is available only for = x86 */ if ( current->irq_nesting++ ) return; @@ -941,6 +943,8 @@ void vcpu_end_irq_handler(void) =20 ASSERT(current->irq_nesting); =20 + TRACE_1D(TRC_SCHED_IRQ_LEAVE, current->irq_nesting - 1); + if ( --current->irq_nesting ) return; =20 @@ -960,6 +964,7 @@ void vcpu_begin_hyp_task(struct vcpu *v) #ifndef NDEBUG v->in_hyp_task =3D true; #endif + TRACE_2D(TRC_SCHED_HYP_ENTRY, v->domain->domain_id, v->vcpu_id); } =20 void vcpu_end_hyp_task(struct vcpu *v) @@ -978,6 +983,8 @@ void vcpu_end_hyp_task(struct vcpu *v) #ifndef NDEBUG v->in_hyp_task =3D false; #endif + TRACE_2D(TRC_SCHED_HYP_LEAVE, v->domain->domain_id, v->vcpu_id); +} =20 s_time_t sched_get_time_correction(struct sched_unit *u) { @@ -1003,6 +1010,8 @@ s_time_t sched_get_time_correction(struct sched_unit = *u) sched_stat_hyp_time +=3D hyp; spin_unlock_irqrestore(&sched_stat_lock, flags); =20 + TRACE_2D(TRC_SCHED_TIME_ADJ, irq, hyp); + return irq + hyp; } =20 diff --git a/xen/include/public/trace.h b/xen/include/public/trace.h index d5fa4aea8d..6161980095 100644 --- a/xen/include/public/trace.h +++ b/xen/include/public/trace.h @@ -117,6 +117,11 @@ #define TRC_SCHED_SWITCH_INFNEXT (TRC_SCHED_VERBOSE + 15) #define TRC_SCHED_SHUTDOWN_CODE (TRC_SCHED_VERBOSE + 16) #define TRC_SCHED_SWITCH_INFCONT (TRC_SCHED_VERBOSE + 17) +#define TRC_SCHED_IRQ_ENTRY (TRC_SCHED_VERBOSE + 18) +#define TRC_SCHED_IRQ_LEAVE (TRC_SCHED_VERBOSE + 19) +#define TRC_SCHED_HYP_ENTRY (TRC_SCHED_VERBOSE + 20) +#define TRC_SCHED_HYP_LEAVE (TRC_SCHED_VERBOSE + 21) +#define TRC_SCHED_TIME_ADJ (TRC_SCHED_VERBOSE + 22) =20 #define TRC_DOM0_DOM_ADD (TRC_DOM0_DOMOPS + 1) #define TRC_DOM0_DOM_REM (TRC_DOM0_DOMOPS + 2) --=20 2.27.0