From patchwork Fri Aug 11 04:51:24 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: 13350128 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 A943AC0015E for ; Fri, 11 Aug 2023 04:52:48 +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=Oa6B327hMuMFxZ5ivyvDDxc+jTcSXJYXrYAB7OAYqQk=; b=yme0c2rA/TYr1LctWOt66hzXQ7 n+ONlJdCE+0ZzoCCyYzpV5XUMyXmsAP6LJWqxhfHIxOrfkKxzscTeYB2n39hKdjciEocvlRWm8cDT jskYCD+HDJOjbrGDSRi7eLunX2jRL0y4zNjk9GNHjGhDAxOb922dagVgLlKrGq6QjuyUuO4njJRH5 Au1T+XQGSAwpc3kmzCDDU5z77KbDQCOkY8T3BLNqxnxIOBKrgFwkZ4CGD1lhVyNjNjMUdoXxKeTJ+ Q73H5lxKJQ/AV2hXi+eE4vIsStbXgmjF5oeaw138omvZJ+N2cXZBJMmID61xhFJRG2PzE3LL4XUfN CEl1MsXA==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.96 #2 (Red Hat Linux)) id 1qUK8h-009QNM-0y; Fri, 11 Aug 2023 04:52:43 +0000 Received: from mail-yw1-x114a.google.com ([2607:f8b0:4864:20::114a]) by bombadil.infradead.org with esmtps (Exim 4.96 #2 (Red Hat Linux)) id 1qUK7o-009Pbh-24 for linux-riscv@lists.infradead.org; Fri, 11 Aug 2023 04:51:52 +0000 Received: by mail-yw1-x114a.google.com with SMTP id 00721157ae682-58667d06607so19956477b3.1 for ; Thu, 10 Aug 2023 21:51:47 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20221208; t=1691729507; x=1692334307; h=cc:to:from:subject:message-id:references:mime-version:in-reply-to :date:from:to:cc:subject:date:message-id:reply-to; bh=oLpltBl1pXuOSkpdQMGZFCQJKBJp7Al35vzbWbo573Q=; b=ABgFIwVolq/6ag26A1K+kK7FXdPo3peqsgbFXc8qiwvbhPI3bZRUdLezxZ8tQik92l T+iaoKDZaDOv6IfoUeiWPTwxhMI85ie6LyPMFxNj8XDmursgFf3en60dEzF4dqf3h+RK WWx7VeXuvcWe37vd84r2WsEbYnf4b0bMiMo48syBpgvZj3Mksg0RwjMn5w1l5qhHm9a0 rzrR9Pv0NaqoQijOdbcWJVVU6XHeWI2Lcm9tCQY3XKwKjOaLQmbXEehuzJJrIwVg3DQc UD1yUHkb20HLZXzkBKX91nLMJ4OeAFKhFEZgnnRUJwp6sPgDeXUVCPtkFFCTN0I7E6Kc DCjg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20221208; t=1691729507; x=1692334307; 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=oLpltBl1pXuOSkpdQMGZFCQJKBJp7Al35vzbWbo573Q=; b=K8z8cmhcluGxo0T9Fncc9bMXbnUMnNAgyRq9HmRc5ATDZXl4jifFZQxp3LtHjEKDWS 11TEsklV2ztp6WbDZL6P0Klai9UOfE/pI1xGccVuWtlsmHyQSDX4QybdhXzhkppZP66J sM+C44VX7YXmlogFXSxppAjE0QXnmbyegMV1je8L5NSsofxnr1sk7GW1Ob/3tfVXEkWe JQpGMObFyOJN5lFuyXxj1Jw61C+HW9Abd648lpegiWxlwF7C999tJWyaVHTbnwbnPDEZ FhSkz2QVyZpSastBpErDYPz2Kd8d8jt0TK45nptQJFqmcscrqA4D916boFIFTuknXgu3 aK9w== X-Gm-Message-State: AOJu0Yyh0envm/enjd2aYXUS/uZiWelAw6gJHS3e7ATSZlQM2EgNCgBg EVnfoSNUTZYLkZ2HUOFwJ1MkkiTOwGPy X-Google-Smtp-Source: AGHT+IEO0sAyUJ6vzJq2dvhSW/1XhcAzkAPBREyGCgte4h6OEGCasNix0f17CE/S4vT/rvUZ3pDeQps2/zyR X-Received: from rananta-linux.c.googlers.com ([fda3:e722:ac3:cc00:2b:ff92:c0a8:22b5]) (user=rananta job=sendgmr) by 2002:a81:ad51:0:b0:583:a8dc:1165 with SMTP id l17-20020a81ad51000000b00583a8dc1165mr13228ywk.10.1691729507118; Thu, 10 Aug 2023 21:51:47 -0700 (PDT) Date: Fri, 11 Aug 2023 04:51:24 +0000 In-Reply-To: <20230811045127.3308641-1-rananta@google.com> Mime-Version: 1.0 References: <20230811045127.3308641-1-rananta@google.com> X-Mailer: git-send-email 2.41.0.640.ga95def55d0-goog Message-ID: <20230811045127.3308641-12-rananta@google.com> Subject: [PATCH v9 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-20230810_215148_708688_4DDFC2A5 X-CRM114-Status: UNSURE ( 7.00 ) 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..702f8715f9fe7 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, + gfn << PAGE_SHIFT, nr_pages << PAGE_SHIFT); + return 0; +} + static bool kvm_is_device_pfn(unsigned long pfn) { return !pfn_is_map_memory(pfn);