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=-2.0 required=3.0 tests=DKIM_INVALID,DKIM_SIGNED, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS, 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 CC2ECC433DF for ; Fri, 10 Jul 2020 08:08:52 +0000 (UTC) Received: from lists.ozlabs.org (lists.ozlabs.org [203.11.71.2]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 27E8C2078B for ; Fri, 10 Jul 2020 08:08:52 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="signature verification failed" (1024-bit key) header.d=redhat.com header.i=@redhat.com header.b="BtVEkmGy"; dkim=fail reason="signature verification failed" (1024-bit key) header.d=redhat.com header.i=@redhat.com header.b="BtVEkmGy" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 27E8C2078B Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=redhat.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=linuxppc-dev-bounces+linuxppc-dev=archiver.kernel.org@lists.ozlabs.org Received: from bilbo.ozlabs.org (lists.ozlabs.org [IPv6:2401:3900:2:1::3]) by lists.ozlabs.org (Postfix) with ESMTP id 4B35KG2WRrzDrN0 for ; Fri, 10 Jul 2020 18:08:50 +1000 (AEST) Authentication-Results: lists.ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=redhat.com (client-ip=207.211.31.81; helo=us-smtp-delivery-1.mimecast.com; envelope-from=pbonzini@redhat.com; receiver=) Authentication-Results: lists.ozlabs.org; dmarc=pass (p=none dis=none) header.from=redhat.com Authentication-Results: lists.ozlabs.org; dkim=pass (1024-bit key; unprotected) header.d=redhat.com header.i=@redhat.com header.a=rsa-sha256 header.s=mimecast20190719 header.b=BtVEkmGy; dkim=pass (1024-bit key) header.d=redhat.com header.i=@redhat.com header.a=rsa-sha256 header.s=mimecast20190719 header.b=BtVEkmGy; dkim-atps=neutral Received: from us-smtp-delivery-1.mimecast.com (us-smtp-1.mimecast.com [207.211.31.81]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by lists.ozlabs.org (Postfix) with ESMTPS id 4B35H76fhlzDrFY for ; Fri, 10 Jul 2020 18:06:59 +1000 (AEST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1594368417; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=U4jS1QoQjjeHX3nPPzYjEddY3DRl7Jsr2mcq4h0i1jc=; b=BtVEkmGyeiLf1NmxwEisL0pgA/fXYsAzjvm7IvGNMzI5Dmrb+P5tPUmzesic+F0EH/lBj4 +BOobClErGeXU57p3mnY6H6x0DL+Wkg6k8M60/IBm/VZmhTgvach14O+DbWG1tw2CpJhIT gzXgHz0KKDuvkdNYqQmeD8my8zhcqzU= DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1594368417; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=U4jS1QoQjjeHX3nPPzYjEddY3DRl7Jsr2mcq4h0i1jc=; b=BtVEkmGyeiLf1NmxwEisL0pgA/fXYsAzjvm7IvGNMzI5Dmrb+P5tPUmzesic+F0EH/lBj4 +BOobClErGeXU57p3mnY6H6x0DL+Wkg6k8M60/IBm/VZmhTgvach14O+DbWG1tw2CpJhIT gzXgHz0KKDuvkdNYqQmeD8my8zhcqzU= Received: from mail-wr1-f71.google.com (mail-wr1-f71.google.com [209.85.221.71]) (Using TLS) by relay.mimecast.com with ESMTP id us-mta-239-Ae7JF-8GOqCBccxexDbzIQ-1; Fri, 10 Jul 2020 04:06:55 -0400 X-MC-Unique: Ae7JF-8GOqCBccxexDbzIQ-1 Received: by mail-wr1-f71.google.com with SMTP id j3so5124534wrq.9 for ; Fri, 10 Jul 2020 01:06:55 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:subject:to:cc:references:from:message-id:date :user-agent:mime-version:in-reply-to:content-language :content-transfer-encoding; bh=U4jS1QoQjjeHX3nPPzYjEddY3DRl7Jsr2mcq4h0i1jc=; b=t1EFAJEgMj2U//DZz+j8prh1O6cn1Z+9lh+ECEkaI/smz6qUoiQKBsUQWDA56V95TI lfXpcbeutyCl0KBtX8eM7uAuFc4ZtSSWCzgvDJ5Kj09bytSUK2yHxrNoer2Ftzna4iee JyJD7looHFW83J45lsM1Ky4nU6UiMgiH5p01OOWfYc/+zyuKK76gy/GT1sNCS9qR51K8 bSrRJ/skpVDwAhbgz7cxrx4Zlunz6Us52SFw0+xSc0Crlsk97M91E8KXUySNGFzgiJjk mJZ5vmMJurtTJSsP9jQ+N98pg7wDVyYq8BRYTSsX6TetxTnO/xr1PKQwt5Ant1vDi3+i lqkA== X-Gm-Message-State: AOAM531PaqHdis5TkJZmotNGBjDqsROIcHbjzx63KLijDArAfvGOIMsG cb1f8tFostb9InP+I5IQFZ4hVf15ndSGf0XpDOCDLQjhwQVoGgDOBqI9JarWKPz673zxPkcrU8m eljC7A6brUSWweIV2lOFZd/4FWg== X-Received: by 2002:a1c:1fd1:: with SMTP id f200mr3838407wmf.162.1594368414523; Fri, 10 Jul 2020 01:06:54 -0700 (PDT) X-Google-Smtp-Source: ABdhPJyJjT5tWv9/nRHPZPlasSYyXK0UFRsIXqd7zkWACOymjphFAEJPu8OB7fs8YgXWFmbnz1f6Yg== X-Received: by 2002:a1c:1fd1:: with SMTP id f200mr3838385wmf.162.1594368414271; Fri, 10 Jul 2020 01:06:54 -0700 (PDT) Received: from ?IPv6:2001:b07:6468:f312:9541:9439:cb0f:89c? ([2001:b07:6468:f312:9541:9439:cb0f:89c]) by smtp.gmail.com with ESMTPSA id v3sm9130496wrq.57.2020.07.10.01.06.52 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Fri, 10 Jul 2020 01:06:53 -0700 (PDT) Subject: Re: [PATCH v6 0/5] clean up redundant 'kvm_run' parameters To: Tianjia Zhang , tsbogend@alpha.franken.de, paulus@ozlabs.org, mpe@ellerman.id.au, benh@kernel.crashing.org, borntraeger@de.ibm.com, frankja@linux.ibm.com, david@redhat.com, cohuck@redhat.com, heiko.carstens@de.ibm.com, gor@linux.ibm.com, sean.j.christopherson@intel.com, vkuznets@redhat.com, wanpengli@tencent.com, jmattson@google.com, joro@8bytes.org, tglx@linutronix.de, mingo@redhat.com, bp@alien8.de, x86@kernel.org, hpa@zytor.com, maz@kernel.org, james.morse@arm.com, julien.thierry.kdev@gmail.com, suzuki.poulose@arm.com, christoffer.dall@arm.com, peterx@redhat.com, thuth@redhat.com, chenhuacai@gmail.com References: <20200623131418.31473-1-tianjia.zhang@linux.alibaba.com> <6604e273-d7b1-5007-8721-75c4a4dec68e@linux.alibaba.com> From: Paolo Bonzini Message-ID: <433ae9a7-ee86-28ea-e600-8769f9759513@redhat.com> Date: Fri, 10 Jul 2020 10:06:51 +0200 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:68.0) Gecko/20100101 Thunderbird/68.9.0 MIME-Version: 1.0 In-Reply-To: <6604e273-d7b1-5007-8721-75c4a4dec68e@linux.alibaba.com> Content-Language: en-US X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit X-BeenThere: linuxppc-dev@lists.ozlabs.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: linux-s390@vger.kernel.org, kvm@vger.kernel.org, linux-mips@vger.kernel.org, kvm-ppc@vger.kernel.org, linux-kernel@vger.kernel.org, linuxppc-dev@lists.ozlabs.org, kvmarm@lists.cs.columbia.edu, linux-arm-kernel@lists.infradead.org Errors-To: linuxppc-dev-bounces+linuxppc-dev=archiver.kernel.org@lists.ozlabs.org Sender: "Linuxppc-dev" On 10/07/20 09:32, Tianjia Zhang wrote: > Hi Paolo, > > Any opinion on this series patches? Can I help with this patchset ? I was hoping to have some Tested-by, for now I'm queuing patches 1 and 2. Thanks, Paolo > Thanks and best, > Tianjia > > On 2020/6/23 21:14, Tianjia Zhang wrote: >> In the current kvm version, 'kvm_run' has been included in the 'kvm_vcpu' >> structure. For historical reasons, many kvm-related function parameters >> retain the 'kvm_run' and 'kvm_vcpu' parameters at the same time. This >> patch does a unified cleanup of these remaining redundant parameters. >> >> This series of patches has completely cleaned the architecture of >> arm64, mips, ppc, and s390 (no such redundant code on x86). Due to >> the large number of modified codes, a separate patch is made for each >> platform. On the ppc platform, there is also a redundant structure >> pointer of 'kvm_run' in 'vcpu_arch', which has also been cleaned >> separately. >> >> --- >> v6 changes: >>    Rearrange patch sets, only keep the unmerged patch. >>    rebase on mainline. >> >> v5 change: >>    ppc: fix for review. >> >> v4 change: >>    mips: fixes two errors in entry.c. >> >> v3 change: >>    Keep the existing `vcpu->run` in the function body unchanged. >> >> v2 change: >>    s390 retains the original variable name and minimizes modification. >> >> Tianjia Zhang (5): >>    KVM: s390: clean up redundant 'kvm_run' parameters >>    KVM: arm64: clean up redundant 'kvm_run' parameters >>    KVM: PPC: clean up redundant kvm_run parameters in assembly >>    KVM: MIPS: clean up redundant 'kvm_run' parameters >>    KVM: MIPS: clean up redundant kvm_run parameters in assembly >> >>   arch/arm64/include/asm/kvm_coproc.h   |  12 +-- >>   arch/arm64/include/asm/kvm_host.h     |  11 +-- >>   arch/arm64/include/asm/kvm_mmu.h      |   2 +- >>   arch/arm64/kvm/arm.c                  |   6 +- >>   arch/arm64/kvm/handle_exit.c          |  36 ++++---- >>   arch/arm64/kvm/mmio.c                 |  11 +-- >>   arch/arm64/kvm/mmu.c                  |   5 +- >>   arch/arm64/kvm/sys_regs.c             |  13 ++- >>   arch/mips/include/asm/kvm_host.h      |  32 ++------ >>   arch/mips/kvm/emulate.c               |  59 +++++-------- >>   arch/mips/kvm/entry.c                 |  21 ++--- >>   arch/mips/kvm/mips.c                  |  14 ++-- >>   arch/mips/kvm/trap_emul.c             | 114 +++++++++++--------------- >>   arch/mips/kvm/vz.c                    |  26 +++--- >>   arch/powerpc/include/asm/kvm_ppc.h    |   2 +- >>   arch/powerpc/kvm/book3s_interrupts.S  |  22 +++-- >>   arch/powerpc/kvm/book3s_pr.c          |   9 +- >>   arch/powerpc/kvm/booke.c              |   9 +- >>   arch/powerpc/kvm/booke_interrupts.S   |   9 +- >>   arch/powerpc/kvm/bookehv_interrupts.S |  10 +-- >>   arch/s390/kvm/kvm-s390.c              |  23 ++++-- >>   21 files changed, 188 insertions(+), 258 deletions(-) >> >