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| author | Vitaly Kuznetsov <vkuznets@redhat.com> | 2018-06-22 19:06:25 +0200 |
|---|---|---|
| committer | Thomas Gleixner <tglx@linutronix.de> | 2018-07-03 09:00:34 +0200 |
| commit | 58ec5e9c9044bd7e1c0bcc6ad822b2e909f49732 (patch) | |
| tree | eb69a33e221a987a50f3484326b40d8319dd1db9 /arch/x86/hyperv | |
| parent | x86/hyper-v: Use cheaper HVCALL_SEND_IPI hypercall when possible (diff) | |
| download | linux-58ec5e9c9044bd7e1c0bcc6ad822b2e909f49732.tar.xz linux-58ec5e9c9044bd7e1c0bcc6ad822b2e909f49732.zip | |
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
Diffstat (limited to 'arch/x86/hyperv')
| -rw-r--r-- | arch/x86/hyperv/hv_apic.c | 4 |
1 files changed, 4 insertions, 0 deletions
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; |