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authorOlaf Hering <ohering@suse.de>2017-10-20 12:20:33 +0200
committerOlaf Hering <ohering@suse.de>2017-10-20 12:23:29 +0200
commit0893ec804ba4d0f4339d8e94473428a83c3ec2fc (patch)
tree2fc96de6ecc54d01ee73c4ebb423407e8b070d9a
parent1203ead36cf26d779a21933b4b86135a59558f57 (diff)
tracing/hyper-v: Trace hyperv_mmu_flush_tlb_others()
-rw-r--r--patches.suse/msft-hv-1454-tracing-hyper-v-Trace-hyperv_mmu_flush_tlb_others.patch121
-rw-r--r--series.conf1
2 files changed, 122 insertions, 0 deletions
diff --git a/patches.suse/msft-hv-1454-tracing-hyper-v-Trace-hyperv_mmu_flush_tlb_others.patch b/patches.suse/msft-hv-1454-tracing-hyper-v-Trace-hyperv_mmu_flush_tlb_others.patch
new file mode 100644
index 0000000000..1b38bfd68c
--- /dev/null
+++ b/patches.suse/msft-hv-1454-tracing-hyper-v-Trace-hyperv_mmu_flush_tlb_others.patch
@@ -0,0 +1,121 @@
+From: Vitaly Kuznetsov <vkuznets@redhat.com>
+Date: Wed, 2 Aug 2017 18:09:21 +0200
+Patch-mainline: v4.14-rc1
+Subject: tracing/hyper-v: Trace hyperv_mmu_flush_tlb_others()
+Git-commit: 773b79f7a7c7839fb9d09c0e206734173a8b0a6b
+References: fate#323887
+
+Add Hyper-V tracing subsystem and trace hyperv_mmu_flush_tlb_others().
+Tracing is done the same way we do xen_mmu_flush_tlb_others().
+
+Signed-off-by: Vitaly Kuznetsov <vkuznets@redhat.com>
+Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
+Reviewed-by: Stephen Hemminger <sthemmin@microsoft.com>
+Reviewed-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
+Cc: Andy Lutomirski <luto@kernel.org>
+Cc: Haiyang Zhang <haiyangz@microsoft.com>
+Cc: Jork Loeser <Jork.Loeser@microsoft.com>
+Cc: K. Y. Srinivasan <kys@microsoft.com>
+Cc: Linus Torvalds <torvalds@linux-foundation.org>
+Cc: Peter Zijlstra <peterz@infradead.org>
+Cc: Simon Xiao <sixiao@microsoft.com>
+Cc: Thomas Gleixner <tglx@linutronix.de>
+Cc: devel@linuxdriverproject.org
+Link: http://lkml.kernel.org/r/20170802160921.21791-10-vkuznets@redhat.com
+Signed-off-by: Ingo Molnar <mingo@kernel.org>
+Acked-by: Olaf Hering <ohering@suse.de>
+---
+ MAINTAINERS | 1 +
+ arch/x86/hyperv/mmu.c | 7 +++++++
+ arch/x86/include/asm/trace/hyperv.h | 40 +++++++++++++++++++++++++++++++++++++
+ 3 files changed, 48 insertions(+)
+ create mode 100644 arch/x86/include/asm/trace/hyperv.h
+
+diff --git a/MAINTAINERS b/MAINTAINERS
+--- a/MAINTAINERS
++++ b/MAINTAINERS
+@@ -6258,6 +6258,7 @@ M: Stephen Hemminger <sthemmin@microsoft.com>
+ L: devel@linuxdriverproject.org
+ S: Maintained
+ F: arch/x86/include/asm/mshyperv.h
++F: arch/x86/include/asm/trace/hyperv.h
+ F: arch/x86/include/uapi/asm/hyperv.h
+ F: arch/x86/kernel/cpu/mshyperv.c
+ F: arch/x86/hyperv
+diff --git a/arch/x86/hyperv/mmu.c b/arch/x86/hyperv/mmu.c
+--- a/arch/x86/hyperv/mmu.c
++++ b/arch/x86/hyperv/mmu.c
+@@ -10,6 +10,9 @@
+ #include <asm/msr.h>
+ #include <asm/tlbflush.h>
+
++#define CREATE_TRACE_POINTS
++#include <asm/trace/hyperv.h>
++
+ /* HvFlushVirtualAddressSpace, HvFlushVirtualAddressList hypercalls */
+ struct hv_flush_pcpu {
+ u64 address_space;
+@@ -103,6 +106,8 @@ static void hyperv_flush_tlb_others(const struct cpumask *cpus,
+ u64 status = U64_MAX;
+ unsigned long flags;
+
++ trace_hyperv_mmu_flush_tlb_others(cpus, mm, start, end);
++
+ if (!pcpu_flush || !hv_hypercall_pg)
+ goto do_native;
+
+@@ -172,6 +177,8 @@ static void hyperv_flush_tlb_others_ex(const struct cpumask *cpus,
+ u64 status = U64_MAX;
+ unsigned long flags;
+
++ trace_hyperv_mmu_flush_tlb_others(cpus, mm, start, end);
++
+ if (!pcpu_flush_ex || !hv_hypercall_pg)
+ goto do_native;
+
+diff --git a/arch/x86/include/asm/trace/hyperv.h b/arch/x86/include/asm/trace/hyperv.h
+new file mode 100644
+index 000000000000..4253bca99989
+--- /dev/null
++++ b/arch/x86/include/asm/trace/hyperv.h
+@@ -0,0 +1,40 @@
++#undef TRACE_SYSTEM
++#define TRACE_SYSTEM hyperv
++
++#if !defined(_TRACE_HYPERV_H) || defined(TRACE_HEADER_MULTI_READ)
++#define _TRACE_HYPERV_H
++
++#include <linux/tracepoint.h>
++
++#if IS_ENABLED(CONFIG_HYPERV)
++
++TRACE_EVENT(hyperv_mmu_flush_tlb_others,
++ TP_PROTO(const struct cpumask *cpus,
++ struct mm_struct *mm, unsigned long start, unsigned long end),
++ TP_ARGS(cpus, mm, start, end),
++ TP_STRUCT__entry(
++ __field(unsigned int, ncpus)
++ __field(struct mm_struct *, mm)
++ __field(unsigned long, addr)
++ __field(unsigned long, end)
++ ),
++ TP_fast_assign(__entry->ncpus = cpumask_weight(cpus);
++ __entry->mm = mm;
++ __entry->addr = start;
++ __entry->end = end;
++ ),
++ TP_printk("ncpus %d mm %p addr %lx, end %lx",
++ __entry->ncpus, __entry->mm,
++ __entry->addr, __entry->end)
++ );
++
++#endif /* CONFIG_HYPERV */
++
++#undef TRACE_INCLUDE_PATH
++#define TRACE_INCLUDE_PATH asm/trace/
++#undef TRACE_INCLUDE_FILE
++#define TRACE_INCLUDE_FILE hyperv
++#endif /* _TRACE_HYPERV_H */
++
++/* This part must be outside protection */
++#include <trace/define_trace.h>
diff --git a/series.conf b/series.conf
index ec64bcad91..82c9052298 100644
--- a/series.conf
+++ b/series.conf
@@ -1702,6 +1702,7 @@
patches.suse/msft-hv-1449-hv_netvsc-Fix-rndis_filter_close-error-during-netvsc.patch
patches.suse/msft-hv-1452-scsi-storvsc-fix-memory-leak-on-ring-buffer-busy.patch
patches.suse/msft-hv-1453-x86-hyper-v-Support-extended-CPU-ranges-for-TLB-flus.patch
+ patches.suse/msft-hv-1454-tracing-hyper-v-Trace-hyperv_mmu_flush_tlb_others.patch
patches.suse/suse-hv-guest-os-id.patch
patches.suse/suse-hv-kvp_on_msg.dbg.patch