Commit-ID: 58ec5e9c9044bd7e1c0bcc6ad822b2e909f49732 Gitweb: https://git.kernel.org/tip/58ec5e9c9044bd7e1c0bcc6ad822b2e909f49732 Author: Vitaly Kuznetsov <vkuzn...@redhat.com> AuthorDate: Fri, 22 Jun 2018 19:06:25 +0200 Committer: Thomas Gleixner <t...@linutronix.de> CommitDate: Tue, 3 Jul 2018 09:00:34 +0200
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 <vkuzn...@redhat.com> Signed-off-by: Thomas Gleixner <t...@linutronix.de> Cc: de...@linuxdriverproject.org Cc: "K. Y. Srinivasan" <k...@microsoft.com> Cc: Haiyang Zhang <haiya...@microsoft.com> Cc: Stephen Hemminger <sthem...@microsoft.com> Cc: "H. Peter Anvin" <h...@zytor.com> Cc: Tianyu Lan <tianyu....@microsoft.com> Cc: "Michael Kelley (EOSG)" <michael.h.kel...@microsoft.com> Link: https://lkml.kernel.org/r/20180622170625.30688-5-vkuzn...@redhat.com --- arch/x86/hyperv/hv_apic.c | 4 ++++ arch/x86/include/asm/trace/hyperv.h | 15 +++++++++++++++ 2 files changed, 19 insertions(+) diff --git a/arch/x86/hyperv/hv_apic.c b/arch/x86/hyperv/hv_apic.c index ee962784d25b..657a2b8c738a 100644 --- a/arch/x86/hyperv/hv_apic.c +++ b/arch/x86/hyperv/hv_apic.c @@ -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; diff --git a/arch/x86/include/asm/trace/hyperv.h b/arch/x86/include/asm/trace/hyperv.h index 4253bca99989..9c0d4b588e3f 100644 --- a/arch/x86/include/asm/trace/hyperv.h +++ b/arch/x86/include/asm/trace/hyperv.h @@ -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
