From patchwork Tue Aug 8 23:13:27 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Raghavendra Rao Ananta X-Patchwork-Id: 13347238 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 7D491C001E0 for ; Tue, 8 Aug 2023 23:14:26 +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-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:Cc:To:From:Subject:Message-ID: References:Mime-Version:In-Reply-To:Date:Reply-To:Content-ID: Content-Description:Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc :Resent-Message-ID:List-Owner; bh=8TNB82yr3Q2OMXLJeKjFyTLvutZ5Nn5Y9334lh3WnLM=; b=LwgEutqOXJLDBiFkV8Svpb84TY llAjd1CjOEEmiA6gh+xI7Lo6ubVitxptutCNvLiLaWDCwUtcLbyrPz+4LcZBxbukO/ivJA9zFyPrs xvSKrujKb++V1jLdkM4yHNW9Kr8J2yaNAlFPTGl+I9/ps3fyZ6mSCRZSIatXpfU6ixe04Zoftj6gp SIut0TbM9oQaQu6ODERRGUqg3SusbyYow4UiWoeQpz5ZiosjLg6cJm2mZlKvdrcCr42xlwnV1hYgq aTlDqIQu0d1jVgBuBZliKMJlr1+hXAXGxA44cBw2D1UhTSc9g8RYWtzIzC1Z0gkxWdtz1OMd0shEL w37jJ1uA==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.96 #2 (Red Hat Linux)) id 1qTVu4-003dlL-2v; Tue, 08 Aug 2023 23:14:16 +0000 Received: from mail-yb1-f201.google.com ([209.85.219.201]) by bombadil.infradead.org with esmtps (Exim 4.96 #2 (Red Hat Linux)) id 1qTVtf-003dCz-0E for linux-riscv@lists.infradead.org; Tue, 08 Aug 2023 23:13:53 +0000 Received: by mail-yb1-f201.google.com with SMTP id 3f1490d57ef6-d60d944f40bso173705276.3 for ; Tue, 08 Aug 2023 16:13:47 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20221208; t=1691536426; x=1692141226; h=cc:to:from:subject:message-id:references:mime-version:in-reply-to :date:from:to:cc:subject:date:message-id:reply-to; bh=Py+nSHfjFpCHBtL754s2ZDTBxkx7EXVyuksTqbxeHnc=; b=Oobg/4/cdAOs54dQe4pnW/zbnaNBnlVLOanu5KZLTomKfQ+83/vesNasPXZkLytB/U yYuKOE66BlODpHN9VhrFvp9Li0ev2MyXeTQUiPUTJXSqU/0hjP6ffhaAu0DG8ceB9nRE 7OEcsCUnawXNgnypHlVh6Ec+JBvBdbe6XhVEonXZ+4qbC9GAWgGFzjJ3qRCswmvnVSma K5WwlTP0idKzpgOBSRweJG4IFK7UjuzmMKGp5q7vQRUWRszUZlz518kqL6rhealjSgNW mURZVtnykI4uxjQF/p6Pbnppkymu8J5PbIwCL6iiQiL/zSW8l5u4ktomsh5R1SKCNTJU 7Yaw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20221208; t=1691536426; x=1692141226; h=cc:to:from:subject:message-id:references:mime-version:in-reply-to :date:x-gm-message-state:from:to:cc:subject:date:message-id:reply-to; bh=Py+nSHfjFpCHBtL754s2ZDTBxkx7EXVyuksTqbxeHnc=; b=Z/YaEsGImieh67k9k73ofolCZPyUtSmFycm+Or8WSsuT5eqqTFe8jfmRn6w29mwoKO oK/ibAIoiVffnKta0FBYAnKr7u2JLXmw7II/jh/W6GjkGMs+uDMXC4QVDhT12l7veNS8 jkHQAv7uq3Ug1pYWe44JFb8D9Ja3NJFZQfPT4ecoBnsdK1Nnvdwbnf14KF39oYc7eQ6e EX+pPbW4JH7AYIZ3GBkapL81IPurhpY6c0rLjtUa/pnGnzdvTujWYAEi9b7XEVWSiMpB FYtmtgV4+tMStmmZxtdjKJnY1lxT7doMTo5OfoU51MfV90+wwj6h1DGCySMnUB/GyqoH anpw== X-Gm-Message-State: AOJu0YwBYCeJp6icpzuhkRHeQQqPdoZRGs3Lods57JIfb35ZU/ynppTr YQSNV2Dm9Yhm+Gf2NL/A5YP0ChKG1Tvs X-Google-Smtp-Source: AGHT+IFrEavsUv9CvI5rpWtoTRkTdNCW4hRKDt4k4H2kyQ7TTHO7qYga0LwAZMMkm4LGrdXgqeyzUr1J01Xw X-Received: from rananta-linux.c.googlers.com ([fda3:e722:ac3:cc00:2b:ff92:c0a8:22b5]) (user=rananta job=sendgmr) by 2002:a05:6902:1788:b0:d45:1b81:1154 with SMTP id ca8-20020a056902178800b00d451b811154mr21434ybb.2.1691536426494; Tue, 08 Aug 2023 16:13:46 -0700 (PDT) Date: Tue, 8 Aug 2023 23:13:27 +0000 In-Reply-To: <20230808231330.3855936-1-rananta@google.com> Mime-Version: 1.0 References: <20230808231330.3855936-1-rananta@google.com> X-Mailer: git-send-email 2.41.0.640.ga95def55d0-goog Message-ID: <20230808231330.3855936-12-rananta@google.com> Subject: [PATCH v8 11/14] KVM: arm64: Implement kvm_arch_flush_remote_tlbs_range() From: Raghavendra Rao Ananta To: 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 , Raghavendra Rao Anata , David Matlack , Fuad Tabba , 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 , Shaoqin Huang X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20230808_161351_127279_4511FB12 X-CRM114-Status: UNSURE ( 7.84 ) X-CRM114-Notice: Please train this message. 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: , Sender: "linux-riscv" Errors-To: linux-riscv-bounces+linux-riscv=archiver.kernel.org@lists.infradead.org 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 | 2 ++ arch/arm64/kvm/mmu.c | 8 ++++++++ 2 files changed, 10 insertions(+) diff --git a/arch/arm64/include/asm/kvm_host.h b/arch/arm64/include/asm/kvm_host.h index 20f2ba149c70c..8f2d99eaab036 100644 --- a/arch/arm64/include/asm/kvm_host.h +++ b/arch/arm64/include/asm/kvm_host.h @@ -1113,6 +1113,8 @@ struct kvm *kvm_arch_alloc_vm(void); #define __KVM_HAVE_ARCH_FLUSH_REMOTE_TLBS +#define __KVM_HAVE_ARCH_FLUSH_REMOTE_TLBS_RANGE + 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 0ac721fa27f18..294078ce16349 100644 --- a/arch/arm64/kvm/mmu.c +++ b/arch/arm64/kvm/mmu.c @@ -172,6 +172,14 @@ int kvm_arch_flush_remote_tlbs(struct kvm *kvm) return 0; } +int kvm_arch_flush_remote_tlbs_range(struct kvm *kvm, + gfn_t gfn, u64 nr_pages) +{ + kvm_tlb_flush_vmid_range(&kvm->arch.mmu, + start_gfn << PAGE_SHIFT, nr_pages << PAGE_SHIFT); + return 0; +} + static bool kvm_is_device_pfn(unsigned long pfn) { return !pfn_is_map_memory(pfn);