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Groups > linux.kernel > #1186019
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|---|---|
| From | Hemant Kumar <hemant@linux.vnet.ibm.com> |
| Newsgroups | linux.kernel |
| Subject | [PATCH v5 2/2] perf,kvm/ppc: Add hcall related info to kvm_perf.h |
| Date | Thu, 16 Jul 2015 18:00:02 +0200 |
| Message-ID | <pMTJM-2N2-11@gated-at.bofh.it> (permalink) |
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| X-Original-Cc | linux-kernel@vger.kernel.org, acme@kernel.org, mingo@kernel.org, mpe@ellerman.id.au, sukadev@linux.vnet.ibm.com, maddy@linux.vnet.ibm.com, warrier@linux.vnet.ibm.com, srikar@linux.vnet.ibm.com, paulus@samba.org, scottwood@freescale.com, Hemant Kumar <hemant@linux.vnet.ibm.com> |
| X-Original-Date | Thu, 16 Jul 2015 21:18:42 +0530 |
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| Xref | aioe.org linux.kernel:1186019 |
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To analyze the hcalls with perf, we need the hcall related tracepoints information to be exported. This patch adds hcall tracepoints "kvm_hv:kvm_hcall_enter" and "kvm_hv:kvm_hcall_exit" to kvm_perf.h. So, perf will now know as to what tracepoints to look for if we are using "perf kvm stat record" to collect guest hcall statistics. Signed-off-by: Hemant Kumar <hemant@linux.vnet.ibm.com> --- Changes: - Not exporting the hcall related codes and names through uapi compared to previous patch. arch/powerpc/include/uapi/asm/kvm_perf_book3s.h | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/arch/powerpc/include/uapi/asm/kvm_perf_book3s.h b/arch/powerpc/include/uapi/asm/kvm_perf_book3s.h index 8c8d8c2..1378a8d 100644 --- a/arch/powerpc/include/uapi/asm/kvm_perf_book3s.h +++ b/arch/powerpc/include/uapi/asm/kvm_perf_book3s.h @@ -11,4 +11,8 @@ #define KVM_EXIT_TRACE "kvm_hv:kvm_guest_exit" #define KVM_EXIT_REASON "trap" +#define KVM_HCALL_ENTRY_TRACE "kvm_hv:kvm_hcall_enter" +#define KVM_HCALL_EXIT_TRACE "kvm_hv:kvm_hcall_exit" +#define KVM_HCALL_REASON "req" + #endif /* _ASM_POWERPC_KVM_PERF_BOOK3S_H */ -- 1.9.3 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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[PATCH v5 1/2] perf,kvm/ppc: Add kvm_perf.h for powerpc Hemant Kumar <hemant@linux.vnet.ibm.com> - 2015-07-16 18:00 +0200 [PATCH v5 2/2] perf,kvm/ppc: Add hcall related info to kvm_perf.h Hemant Kumar <hemant@linux.vnet.ibm.com> - 2015-07-16 18:00 +0200 Re: [PATCH v5 1/2] perf,kvm/ppc: Add kvm_perf.h for powerpc Scott Wood <scottwood@freescale.com> - 2015-07-16 22:30 +0200
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