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x86/hyper-v: Trace PV IPI send 

Trace Hyper-V PV IPIs the same way we do PV TLB flush.

Signed-off-by: Vitaly Kuznetsov <vkuznets@redhat.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: devel@linuxdriverproject.org
Cc: "K. Y. Srinivasan" <kys@microsoft.com>
Cc: Haiyang Zhang <haiyangz@microsoft.com>
Cc: Stephen Hemminger <sthemmin@microsoft.com>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: Tianyu Lan <Tianyu.Lan@microsoft.com>
Cc: "Michael Kelley (EOSG)" <Michael.H.Kelley@microsoft.com>
Link: https://lkml.kernel.org/r/20180622170625.30688-5-vkuznets@redhat.com
This commit is contained in:
Vitaly Kuznetsov 2018-06-22 19:06:25 +02:00 committed by Thomas Gleixner
parent 4bd0606076
commit 58ec5e9c90
2 changed files with 19 additions and 0 deletions
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4
arch/x86/hyperv/hv_apic.c
View File

@ -31,6 +31,8 @@
#include <asm/mshyperv.h>
#include <asm/apic.h>
#include <asm/trace/hyperv.h>
static struct apic orig_apic;
static u64 hv_apic_icr_read(void)
@ -134,6 +136,8 @@ static bool __send_ipi_mask(const struct cpumask *mask, int vector)
struct ipi_arg_non_ex ipi_arg;
int ret = 1;
trace_hyperv_send_ipi_mask(mask, vector);
if (cpumask_empty(mask))
return true;

15
arch/x86/include/asm/trace/hyperv.h
View File

@ -28,6 +28,21 @@ TRACE_EVENT(hyperv_mmu_flush_tlb_others,
__entry->addr, __entry->end)
);
TRACE_EVENT(hyperv_send_ipi_mask,
TP_PROTO(const struct cpumask *cpus,
int vector),
TP_ARGS(cpus, vector),
TP_STRUCT__entry(
__field(unsigned int, ncpus)
__field(int, vector)
),
TP_fast_assign(__entry->ncpus = cpumask_weight(cpus);
__entry->vector = vector;
),
TP_printk("ncpus %d vector %x",
__entry->ncpus, __entry->vector)
);
#endif /* CONFIG_HYPERV */
#undef TRACE_INCLUDE_PATH