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 vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id BB398EB64DA for ; Tue, 18 Jul 2023 11:16:24 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230448AbjGRLQX (ORCPT ); Tue, 18 Jul 2023 07:16:23 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:35974 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229540AbjGRLQV (ORCPT ); Tue, 18 Jul 2023 07:16:21 -0400 Received: from us-smtp-delivery-124.mimecast.com (us-smtp-delivery-124.mimecast.com [170.10.129.124]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id BB29410FC for ; Tue, 18 Jul 2023 04:15:42 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1689678942; 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=BqFBTcreB9uM7bVA+oKgdwOheFXwxzAShQOYP1vaHLs=; b=UoJkDCTCW3UbiMxhNVm7orufGMKqQxto60k8XmQ6T3l3WIMdcoid0v25kanO0d9DeMIlR6 P/3NaRf6S0R59TyKYGHGnpdMI+o4AABukG080M3tH08A8oh6uiJX7mhaOmMblCSIVwClRB Chl+DOesqjiQ8nnB5d6vsPNhmdT89Ss= Received: from mail-pf1-f200.google.com (mail-pf1-f200.google.com [209.85.210.200]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.3, cipher=TLS_AES_256_GCM_SHA384) id us-mta-125-P15JMUbXPxGW9KY6aZXA4A-1; Tue, 18 Jul 2023 07:15:40 -0400 X-MC-Unique: P15JMUbXPxGW9KY6aZXA4A-1 Received: by mail-pf1-f200.google.com with SMTP id d2e1a72fcca58-66d7911409dso422440b3a.1 for ; Tue, 18 Jul 2023 04:15:40 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20221208; t=1689678940; x=1690283740; 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=BqFBTcreB9uM7bVA+oKgdwOheFXwxzAShQOYP1vaHLs=; b=Dt4gB40ZnTBebwC39Syq1qLQ9g64haGfLSZrJubUjOCNrCIkVlM4JPT67n5iBve3Ld /dExSfF2OlTAHwpe4DU91NHgURjHr5Fo6ZQuD9dquHQkAMsG65w7uVsB93mLZyyR8mMX EL0KAiiXjmW/22ufOXVLHaCrYa3BxIDZ587VlzohhB6tiW64PBpud1Kz7fw8IehwLc0B lADLcLejS9V1Xex/oMu81+FXa1PPOOkR1nu7a5wj1Gn6/cjnyrEGlp5z2acopj+Zeyzs HRfF4yow33v/YI7w05SyPjt3Cx7LhQ9aT3Z/frtU1Frs1BAtwjJv5bopZy9+BBERg8Zx 4DLg== X-Gm-Message-State: ABy/qLZeAcipoUj3lr6wJjL5opgIMVIWXBh0KCGUT/XM6/QhfHEgnLjX anLc4b8teDrHDHul1E1ojnm7+vlMD4JHDnkrtjuMlKkqdu7Z94eKF/Zrui92a7+wGfTXfrVmN/h tMBMz3d8i8VlKvTnPTDc+vKDc X-Received: by 2002:a05:6a00:2d06:b0:679:a1f1:a5f8 with SMTP id fa6-20020a056a002d0600b00679a1f1a5f8mr11345521pfb.3.1689678939737; Tue, 18 Jul 2023 04:15:39 -0700 (PDT) X-Google-Smtp-Source: APBJJlEpw9FbepMwI4i8WQLrfFCcRWK4bQzZOcI8bUuVzeTHVwddSiiqvjUkmkgPmHYZSjCF3HQUxg== X-Received: by 2002:a05:6a00:2d06:b0:679:a1f1:a5f8 with SMTP id fa6-20020a056a002d0600b00679a1f1a5f8mr11345498pfb.3.1689678939458; Tue, 18 Jul 2023 04:15:39 -0700 (PDT) Received: from [10.72.112.40] ([43.228.180.230]) by smtp.gmail.com with ESMTPSA id s1-20020a63af41000000b00528db73ed70sm1476638pgo.3.2023.07.18.04.15.34 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Tue, 18 Jul 2023 04:15:39 -0700 (PDT) Message-ID: <5b2c03a5-5887-d951-6c3d-f71b49e683fc@redhat.com> Date: Tue, 18 Jul 2023 19:15:32 +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 v6 08/11] KVM: arm64: Implement kvm_arch_flush_remote_tlbs_range() Content-Language: en-US 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 , 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, Gavin Shan References: <20230715005405.3689586-1-rananta@google.com> <20230715005405.3689586-9-rananta@google.com> From: Shaoqin Huang In-Reply-To: <20230715005405.3689586-9-rananta@google.com> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 7/15/23 08:54, Raghavendra Rao Ananta wrote: > Implement kvm_arch_flush_remote_tlbs_range() for arm64 > to invalidate the given range in the TLB. > > Signed-off-by: Raghavendra Rao Ananta > Reviewed-by: Gavin Shan Reviewed-by: Shaoqin Huang > --- > arch/arm64/include/asm/kvm_host.h | 3 +++ > arch/arm64/kvm/mmu.c | 7 +++++++ > 2 files changed, 10 insertions(+) > > diff --git a/arch/arm64/include/asm/kvm_host.h b/arch/arm64/include/asm/kvm_host.h > index 7281222f24ef..52d3ed918893 100644 > --- a/arch/arm64/include/asm/kvm_host.h > +++ b/arch/arm64/include/asm/kvm_host.h > @@ -1114,6 +1114,9 @@ struct kvm *kvm_arch_alloc_vm(void); > #define __KVM_HAVE_ARCH_FLUSH_REMOTE_TLBS > int kvm_arch_flush_remote_tlbs(struct kvm *kvm); > > +#define __KVM_HAVE_ARCH_FLUSH_REMOTE_TLBS_RANGE > +int kvm_arch_flush_remote_tlbs_range(struct kvm *kvm, gfn_t start_gfn, u64 pages); > + > static inline bool kvm_vm_is_protected(struct kvm *kvm) > { > return false; > diff --git a/arch/arm64/kvm/mmu.c b/arch/arm64/kvm/mmu.c > index 0ac721fa27f1..387f2215fde7 100644 > --- a/arch/arm64/kvm/mmu.c > +++ b/arch/arm64/kvm/mmu.c > @@ -172,6 +172,13 @@ int kvm_arch_flush_remote_tlbs(struct kvm *kvm) > return 0; > } > > +int kvm_arch_flush_remote_tlbs_range(struct kvm *kvm, gfn_t start_gfn, u64 pages) > +{ > + kvm_tlb_flush_vmid_range(&kvm->arch.mmu, > + start_gfn << PAGE_SHIFT, pages << PAGE_SHIFT); > + return 0; > +} > + > static bool kvm_is_device_pfn(unsigned long pfn) > { > return !pfn_is_map_memory(pfn); -- Shaoqin