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 Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 216AAC001B0 for ; Mon, 24 Jul 2023 09:14:06 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:Content-Type: Content-Transfer-Encoding:List-Subscribe:List-Help:List-Post:List-Archive: List-Unsubscribe:List-Id:In-Reply-To:From:References:Cc:To:Subject: MIME-Version:Date:Message-ID:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=PCOytOyLijjle7IH/B77b5jpDmzu31p29h5uTdlrt1I=; b=mjCFgpNTxZQp4t yvodD9WFItb6649ffpiS/d1vhZx7N/lyXo6yxtO05OIbuIKGgMOxdKvOP1nKLV9UMSpoNyEj/4mm/ lsBZvq6Op+mhtVPqKRJmQ3njEV1+9lTkrK3h2sfOoApxaxLBeIlD5XbFOvk217cIglfdG/4RFVVpQ 4I5Ve7YP6w3UIFcmg1NNrPrHx3JhsDDKYODpewJawnBXoicmT7HoncywvVbUK8/KugGfBUX2CP2mT 75YYM+AmoBT/la3jpu8IGMex/begX74XvAKkcz/IfXu6nzpBMUp+DPB0Oj1OSSX9cDpFO0sVfJxNc qvF3k97xiwg4hwP5VNBw==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.96 #2 (Red Hat Linux)) id 1qNrdf-003Mlv-2Z; Mon, 24 Jul 2023 09:13:59 +0000 Received: from us-smtp-delivery-124.mimecast.com ([170.10.133.124]) by bombadil.infradead.org with esmtps (Exim 4.96 #2 (Red Hat Linux)) id 1qNrdc-003MjT-1F for linux-riscv@lists.infradead.org; Mon, 24 Jul 2023 09:13:57 +0000 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1690190035; 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=2oPDYvwpZtu0Ko50jtkdQDGuMOTIWCRCGf2FetUqVmk=; b=HVbdtHueq+R0K5BgARQzCpIzIzs3x9InXg2XzGO7ts6NLBgcYTAzr/jrAsqTGVGW88zOnc eTspVOQ0tASiGvgAAw+Yue9oytkL/VHGcw/UXcA/JNq4EuwjpvhOLRgzbQQBWoNtYryU9o hdhsKnq2VZrroDXHH85aSGx45dFv3zg= Received: from mail-ot1-f71.google.com (mail-ot1-f71.google.com [209.85.210.71]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.3, cipher=TLS_AES_256_GCM_SHA384) id us-mta-84-EAnPU6WFPLuhVG8IxuqRcw-1; Mon, 24 Jul 2023 05:13:53 -0400 X-MC-Unique: EAnPU6WFPLuhVG8IxuqRcw-1 Received: by mail-ot1-f71.google.com with SMTP id 46e09a7af769-6b9a7633db8so877040a34.1 for ; Mon, 24 Jul 2023 02:13:52 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20221208; t=1690190032; x=1690794832; h=content-transfer-encoding:in-reply-to:from:references:cc:to :content-language:subject:user-agent:mime-version:date:message-id :x-gm-message-state:from:to:cc:subject:date:message-id:reply-to; bh=2oPDYvwpZtu0Ko50jtkdQDGuMOTIWCRCGf2FetUqVmk=; b=T55uQUMvSc3mcIODhjzx98441IMZLBaRN6mzJN9oz32PvV5JXLtZ0OWxxCGqHc8kmb KXkFjZfrfXGqTw7iOblpS0J48ax3fU+3ckW/zWnos/3O5ehmqGzbX7CmUDKvH7CW8RvT T99LmTX/jYRGHdIW0FgSmYid5L9sIvlrgxOWhckyjjQv62/xg6JcAknn65AbJqX5eKN3 LLaHcKma33SEemwuQzuEtkCwqJJlL+NiK3JN7zPENr+8Sbvc+DRIQQ+iV3JHu3TW1bSJ PjkG2Ii8kZ5pHosmJdQ2MH9xr+m0YGNiCQlp7yeW3fk9KwUUcPnFYiu9FKtGNvhXIJPW jJRg== X-Gm-Message-State: ABy/qLafbIW/hcXumPpfc4b5++xFxCTifwyoKRlht3LPgkSw4By2ECTL sYND8wWqIFaCEWjULKwUs2/ql+w5enRBporkSXw9cLRyT12rFl2i+RkRWOhFqAlu/2wqZxn08zR QVnOALVlX1kVfjg+1gcSRQaA/Diaf X-Received: by 2002:a05:6870:568e:b0:1b7:613c:2e30 with SMTP id p14-20020a056870568e00b001b7613c2e30mr7564449oao.2.1690190032050; Mon, 24 Jul 2023 02:13:52 -0700 (PDT) X-Google-Smtp-Source: APBJJlGz31tvB+wfj4JC9JljpAdnVVugjKH/UFomLvpFW9yVXyN8NXs0fQCdMnGqdTxGWM2Ywaca6g== X-Received: by 2002:a05:6870:568e:b0:1b7:613c:2e30 with SMTP id p14-20020a056870568e00b001b7613c2e30mr7564429oao.2.1690190031838; Mon, 24 Jul 2023 02:13:51 -0700 (PDT) Received: from [10.66.61.39] ([43.228.180.230]) by smtp.gmail.com with ESMTPSA id w6-20020a63af06000000b0050f85ef50d1sm7977675pge.26.2023.07.24.02.13.46 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Mon, 24 Jul 2023 02:13:51 -0700 (PDT) Message-ID: Date: Mon, 24 Jul 2023 17:13:45 +0800 MIME-Version: 1.0 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:102.0) Gecko/20100101 Thunderbird/102.10.0 Subject: Re: [PATCH v7 03/12] KVM: Remove CONFIG_HAVE_KVM_ARCH_TLB_FLUSH_ALL To: Raghavendra Rao Ananta , Oliver Upton , Marc Zyngier , James Morse , Suzuki K Poulose Cc: Paolo Bonzini , Sean Christopherson , Huacai Chen , Zenghui Yu , Anup Patel , Atish Patra , Jing Zhang , Reiji Watanabe , Colton Lewis , David Matlack , linux-arm-kernel@lists.infradead.org, kvmarm@lists.linux.dev, linux-mips@vger.kernel.org, kvm-riscv@lists.infradead.org, linux-riscv@lists.infradead.org, linux-kernel@vger.kernel.org, kvm@vger.kernel.org References: <20230722022251.3446223-1-rananta@google.com> <20230722022251.3446223-4-rananta@google.com> From: Shaoqin Huang In-Reply-To: <20230722022251.3446223-4-rananta@google.com> X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com Content-Language: en-US X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20230724_021356_493971_6C16B9CB X-CRM114-Status: GOOD ( 12.82 ) X-BeenThere: linux-riscv@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: 7bit Content-Type: text/plain; charset="us-ascii"; Format="flowed" Sender: "linux-riscv" Errors-To: linux-riscv-bounces+linux-riscv=archiver.kernel.org@lists.infradead.org On 7/22/23 10:22, Raghavendra Rao Ananta wrote: > kvm_arch_flush_remote_tlbs() or CONFIG_HAVE_KVM_ARCH_TLB_FLUSH_ALL > are two mechanisms to solve the same problem, allowing > architecture-specific code to provide a non-IPI implementation of > remote TLB flushing. > > Dropping CONFIG_HAVE_KVM_ARCH_TLB_FLUSH_ALL allows KVM to standardize > all architectures on kvm_arch_flush_remote_tlbs() instead of > maintaining two mechanisms. > > Signed-off-by: Raghavendra Rao Ananta Reviewed-by: Shaoqin Huang > --- > virt/kvm/Kconfig | 3 --- > virt/kvm/kvm_main.c | 2 -- > 2 files changed, 5 deletions(-) > > diff --git a/virt/kvm/Kconfig b/virt/kvm/Kconfig > index b74916de5183..484d0873061c 100644 > --- a/virt/kvm/Kconfig > +++ b/virt/kvm/Kconfig > @@ -62,9 +62,6 @@ config HAVE_KVM_CPU_RELAX_INTERCEPT > config KVM_VFIO > bool > > -config HAVE_KVM_ARCH_TLB_FLUSH_ALL > - bool > - > config HAVE_KVM_INVALID_WAKEUPS > bool > > diff --git a/virt/kvm/kvm_main.c b/virt/kvm/kvm_main.c > index 70e5479797ac..d6b050786155 100644 > --- a/virt/kvm/kvm_main.c > +++ b/virt/kvm/kvm_main.c > @@ -345,7 +345,6 @@ bool kvm_make_all_cpus_request(struct kvm *kvm, unsigned int req) > } > EXPORT_SYMBOL_GPL(kvm_make_all_cpus_request); > > -#ifndef CONFIG_HAVE_KVM_ARCH_TLB_FLUSH_ALL > void kvm_flush_remote_tlbs(struct kvm *kvm) > { > ++kvm->stat.generic.remote_tlb_flush_requests; > @@ -366,7 +365,6 @@ void kvm_flush_remote_tlbs(struct kvm *kvm) > ++kvm->stat.generic.remote_tlb_flush; > } > EXPORT_SYMBOL_GPL(kvm_flush_remote_tlbs); > -#endif > > static void kvm_flush_shadow_all(struct kvm *kvm) > { -- Shaoqin _______________________________________________ linux-riscv mailing list linux-riscv@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-riscv