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a="198825015" X-IronPort-AV: E=Sophos;i="5.84,259,1620716400"; d="scan'208";a="198825015" Received: from fmsmga002.fm.intel.com ([10.253.24.26]) by orsmga106.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 21 Jul 2021 19:38:09 -0700 X-IronPort-AV: E=Sophos;i="5.84,259,1620716400"; d="scan'208";a="512014134" Received: from lingshan-mobl5.ccr.corp.intel.com (HELO [10.255.29.38]) ([10.255.29.38]) by fmsmga002-auth.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 21 Jul 2021 19:38:02 -0700 Subject: Re: [PATCH V8 01/18] perf/core: Use static_call to optimize perf_guest_info_callbacks To: Like Xu References: <20210716085325.10300-1-lingshan.zhu@intel.com> <20210716085325.10300-2-lingshan.zhu@intel.com> From: "Zhu, Lingshan" Message-ID: Date: Thu, 22 Jul 2021 10:38:00 +0800 User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:78.0) Gecko/20100101 Firefox/78.0 Thunderbird/78.12.0 MIME-Version: 1.0 In-Reply-To: Content-Language: en-US X-Mailman-Approved-At: Thu, 22 Jul 2021 04:11:46 -0400 Cc: wanpengli@tencent.com, Like Xu , Peter Zijlstra , eranian@google.com, Guo Ren , linux-riscv@lists.infradead.org, Will Deacon , kvmarm@lists.cs.columbia.edu, kan.liang@linux.intel.com, ak@linux.intel.com, kvm@vger.kernel.org, Marc Zyngier , joro@8bytes.org, x86@kernel.org, linux-csky@vger.kernel.org, wei.w.wang@intel.com, linux-arm-kernel@lists.infradead.org, xen-devel@lists.xenproject.org, liuxiangdong5@huawei.com, bp@alien8.de, Paul Walmsley , Boris Ostrovsky , boris.ostrvsky@oracle.com, jmattson@google.com, Nick Hu , seanjc@google.com, linux-kernel@vger.kernel.org, Paolo Bonzini , vkuznets@redhat.com X-BeenThere: kvmarm@lists.cs.columbia.edu X-Mailman-Version: 2.1.14 Precedence: list List-Id: Where KVM/ARM decisions are made List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Transfer-Encoding: base64 Content-Type: text/plain; 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21 Jul 2021 19:38:02 -0700 Subject: Re: [PATCH V8 01/18] perf/core: Use static_call to optimize perf_guest_info_callbacks To: Like Xu Cc: bp@alien8.de, seanjc@google.com, vkuznets@redhat.com, wanpengli@tencent.com, jmattson@google.com, joro@8bytes.org, kan.liang@linux.intel.com, ak@linux.intel.com, wei.w.wang@intel.com, eranian@google.com, liuxiangdong5@huawei.com, linux-kernel@vger.kernel.org, x86@kernel.org, kvm@vger.kernel.org, boris.ostrvsky@oracle.com, Like Xu , Will Deacon , Marc Zyngier , Guo Ren , Nick Hu , Paul Walmsley , Boris Ostrovsky , linux-arm-kernel@lists.infradead.org, kvmarm@lists.cs.columbia.edu, linux-csky@vger.kernel.org, linux-riscv@lists.infradead.org, xen-devel@lists.xenproject.org, Peter Zijlstra , Paolo Bonzini References: <20210716085325.10300-1-lingshan.zhu@intel.com> <20210716085325.10300-2-lingshan.zhu@intel.com> From: "Zhu, Lingshan" Message-ID: Date: Thu, 22 Jul 2021 10:38:00 +0800 User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:78.0) Gecko/20100101 Firefox/78.0 Thunderbird/78.12.0 MIME-Version: 1.0 In-Reply-To: Content-Type: text/plain; charset=utf-8; format=flowed Content-Transfer-Encoding: 8bit Content-Language: en-US Precedence: bulk List-ID: X-Mailing-List: linux-csky@vger.kernel.org On 7/21/2021 7:57 PM, Like Xu wrote: > On 16/7/2021 4:53 pm, Zhu Lingshan wrote: >> +    } else if (xenpmu_data->pmu.r.regs.cpl & 3) oh, my typo, will fix in V9 Thanks > > Lingshan, serious for this version ? > > arch/x86/xen/pmu.c:438:9: error: expected identifier or ‘(’ before > ‘return’ >   438 |         return state; >       |         ^~~~~~ > arch/x86/xen/pmu.c:439:1: error: expected identifier or ‘(’ before ‘}’ > token >   439 | } >       | ^ > arch/x86/xen/pmu.c: In function ‘xen_guest_state’: > arch/x86/xen/pmu.c:436:9: error: control reaches end of non-void > function [-Werror=return-type] >   436 |         } >       |         ^ > cc1: some warnings being treated as errors > >> +            state |= PERF_GUEST_USER; >>       } From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-6.8 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI, NICE_REPLY_A,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_SANE_1 autolearn=no autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id E2376C6377A for ; 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21 Jul 2021 19:38:09 -0700 X-IronPort-AV: E=Sophos;i="5.84,259,1620716400"; d="scan'208";a="512014134" Received: from lingshan-mobl5.ccr.corp.intel.com (HELO [10.255.29.38]) ([10.255.29.38]) by fmsmga002-auth.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 21 Jul 2021 19:38:02 -0700 Subject: Re: [PATCH V8 01/18] perf/core: Use static_call to optimize perf_guest_info_callbacks To: Like Xu Cc: bp@alien8.de, seanjc@google.com, vkuznets@redhat.com, wanpengli@tencent.com, jmattson@google.com, joro@8bytes.org, kan.liang@linux.intel.com, ak@linux.intel.com, wei.w.wang@intel.com, eranian@google.com, liuxiangdong5@huawei.com, linux-kernel@vger.kernel.org, x86@kernel.org, kvm@vger.kernel.org, boris.ostrvsky@oracle.com, Like Xu , Will Deacon , Marc Zyngier , Guo Ren , Nick Hu , Paul Walmsley , Boris Ostrovsky , linux-arm-kernel@lists.infradead.org, kvmarm@lists.cs.columbia.edu, linux-csky@vger.kernel.org, linux-riscv@lists.infradead.org, xen-devel@lists.xenproject.org, Peter Zijlstra , Paolo Bonzini References: <20210716085325.10300-1-lingshan.zhu@intel.com> <20210716085325.10300-2-lingshan.zhu@intel.com> From: "Zhu, Lingshan" Message-ID: Date: Thu, 22 Jul 2021 10:38:00 +0800 User-Agent: Mozilla/5.0 (Windows NT 10.0; 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21 Jul 2021 19:38:09 -0700 X-IronPort-AV: E=Sophos;i="5.84,259,1620716400"; d="scan'208";a="512014134" Received: from lingshan-mobl5.ccr.corp.intel.com (HELO [10.255.29.38]) ([10.255.29.38]) by fmsmga002-auth.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 21 Jul 2021 19:38:02 -0700 Subject: Re: [PATCH V8 01/18] perf/core: Use static_call to optimize perf_guest_info_callbacks To: Like Xu Cc: bp@alien8.de, seanjc@google.com, vkuznets@redhat.com, wanpengli@tencent.com, jmattson@google.com, joro@8bytes.org, kan.liang@linux.intel.com, ak@linux.intel.com, wei.w.wang@intel.com, eranian@google.com, liuxiangdong5@huawei.com, linux-kernel@vger.kernel.org, x86@kernel.org, kvm@vger.kernel.org, boris.ostrvsky@oracle.com, Like Xu , Will Deacon , Marc Zyngier , Guo Ren , Nick Hu , Paul Walmsley , Boris Ostrovsky , linux-arm-kernel@lists.infradead.org, kvmarm@lists.cs.columbia.edu, linux-csky@vger.kernel.org, linux-riscv@lists.infradead.org, xen-devel@lists.xenproject.org, Peter Zijlstra , Paolo Bonzini References: <20210716085325.10300-1-lingshan.zhu@intel.com> <20210716085325.10300-2-lingshan.zhu@intel.com> From: "Zhu, Lingshan" Message-ID: Date: Thu, 22 Jul 2021 10:38:00 +0800 User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:78.0) Gecko/20100101 Firefox/78.0 Thunderbird/78.12.0 MIME-Version: 1.0 In-Reply-To: Content-Language: en-US X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20210721_193810_559217_EA430C7B X-CRM114-Status: GOOD ( 10.48 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Transfer-Encoding: base64 Content-Type: text/plain; charset="utf-8"; Format="flowed" Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org CgpPbiA3LzIxLzIwMjEgNzo1NyBQTSwgTGlrZSBYdSB3cm90ZToKPiBPbiAxNi83LzIwMjEgNDo1 MyBwbSwgWmh1IExpbmdzaGFuIHdyb3RlOgo+PiArwqDCoMKgIH0gZWxzZSBpZiAoeGVucG11X2Rh dGEtPnBtdS5yLnJlZ3MuY3BsICYgMykKb2gsIG15IHR5cG8sIHdpbGwgZml4IGluIFY5CgpUaGFu a3MKPgo+IExpbmdzaGFuLCBzZXJpb3VzIGZvciB0aGlzIHZlcnNpb24gPwo+Cj4gYXJjaC94ODYv eGVuL3BtdS5jOjQzODo5OiBlcnJvcjogZXhwZWN0ZWQgaWRlbnRpZmllciBvciDigJgo4oCZIGJl Zm9yZSAKPiDigJhyZXR1cm7igJkKPiDCoCA0MzggfMKgwqDCoMKgwqDCoMKgwqAgcmV0dXJuIHN0 YXRlOwo+IMKgwqDCoMKgwqAgfMKgwqDCoMKgwqDCoMKgwqAgXn5+fn5+Cj4gYXJjaC94ODYveGVu L3BtdS5jOjQzOToxOiBlcnJvcjogZXhwZWN0ZWQgaWRlbnRpZmllciBvciDigJgo4oCZIGJlZm9y ZSDigJh94oCZIAo+IHRva2VuCj4gwqAgNDM5IHwgfQo+IMKgwqDCoMKgwqAgfCBeCj4gYXJjaC94 ODYveGVuL3BtdS5jOiBJbiBmdW5jdGlvbiDigJh4ZW5fZ3Vlc3Rfc3RhdGXigJk6Cj4gYXJjaC94 ODYveGVuL3BtdS5jOjQzNjo5OiBlcnJvcjogY29udHJvbCByZWFjaGVzIGVuZCBvZiBub24tdm9p ZCAKPiBmdW5jdGlvbiBbLVdlcnJvcj1yZXR1cm4tdHlwZV0KPiDCoCA0MzYgfMKgwqDCoMKgwqDC oMKgwqAgfQo+IMKgwqDCoMKgwqAgfMKgwqDCoMKgwqDCoMKgwqAgXgo+IGNjMTogc29tZSB3YXJu aW5ncyBiZWluZyB0cmVhdGVkIGFzIGVycm9ycwo+Cj4+ICvCoMKgwqDCoMKgwqDCoMKgwqDCoMKg IHN0YXRlIHw9IFBFUkZfR1VFU1RfVVNFUjsKPj4gwqDCoMKgwqDCoCB9CgoKX19fX19fX19fX19f X19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX18KbGludXgtYXJtLWtlcm5lbCBtYWls aW5nIGxpc3QKbGludXgtYXJtLWtlcm5lbEBsaXN0cy5pbmZyYWRlYWQub3JnCmh0dHA6Ly9saXN0 cy5pbmZyYWRlYWQub3JnL21haWxtYW4vbGlzdGluZm8vbGludXgtYXJtLWtlcm5lbAo=