From patchwork Wed Jun 21 17:49:59 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: 13287811 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 26F8CEB64DC for ; Wed, 21 Jun 2023 17:51:12 +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=DCq6+LLXfT8Zs0GZzU/V56OFKt6IuCOBIO7xx9EBs7k=; b=Wsty1VbO7ztIbGNIE9rF+det0T QHD7YukJF6wFbvxVXZInY2OmqDH2/VDY9j0/gQWmgZYFlToj7JPe1DC6lQM2CorHWfPUR/W0gKAq3 U3Ti74vxmlVMz5m33jE2XvxqxL7FQuSCUNMrtg4sFO0cxI8an/67zfXZfb9Ktuq9n1M0UyCpQ/GeU kz7oPDvaxGSZoPNTQvWPo0eeDhJ42P3+V9vl/8C+fJD6EWDI1G/zRrdayeJqRVvFJwqoBZYQtK67C mV+lnAmFMWavvQe1KFWXBijYvE5sEPhB2F2q+pMxlZjZvYSU3i94sXxFF01D1Mjk3fdDGeUWTNJhT VbfUUmtQ==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.96 #2 (Red Hat Linux)) id 1qC1z0-00FHeK-2q; Wed, 21 Jun 2023 17:51:06 +0000 Received: from mail-il1-f201.google.com ([209.85.166.201]) by bombadil.infradead.org with esmtps (Exim 4.96 #2 (Red Hat Linux)) id 1qC1yS-00FH4Z-02 for linux-riscv@lists.infradead.org; Wed, 21 Jun 2023 17:50:36 +0000 Received: by mail-il1-f201.google.com with SMTP id e9e14a558f8ab-340b21b5927so48736355ab.3 for ; Wed, 21 Jun 2023 10:50:30 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20221208; t=1687369829; x=1689961829; h=cc:to:from:subject:message-id:references:mime-version:in-reply-to :date:from:to:cc:subject:date:message-id:reply-to; bh=dtGUI04cZLcqHqfVph3GLMvS0CVYqac6sXI/vA3EN9c=; b=wUCfp8LIVxVyw9rOjJ+xxvqYiNhrMKEQGqZAIrYsflCWYaL7sMIjnn5LDzBF8HHkci fU6aqWxAcgnmVfiz4UwopUTnDAafaCROX3yoC8OfXmrNVemh4RlpXriU2kIUlflYJXHw uMCeKHy/l1FGUBNLLAGrP3KIWF3x8c8QA6lH15hhdrXNCDtmipcd1fYAZABG46exGlSO gFSuHconOaa66m/06jG0Ro0iy0bHzhaKM98M74q46S68x0wg14fu0205JCX28SDxNDoC IeVohMieqPadYlEk/nIWyWNaXHuxsT0P5qiOFBg+yGi/qLEjpv50H3iXe5QJF2vkwCpH B3PA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20221208; t=1687369829; x=1689961829; 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=dtGUI04cZLcqHqfVph3GLMvS0CVYqac6sXI/vA3EN9c=; b=RKn6KBeosLP/4zFojkaIdhFEnjOyMJlOcGYmgGuHaOic+juQCU9vjp+CQtMYQXqN11 dMf83GdYc5KjtTVJscRaw2ve7oxS5WC/owlrMFN+RXQijD5RTF6gMMdfGqFuVKWxLrIm xed1L6oDmL9hv0vXeJHgX4UMMtWKWkVzvfEmwWEX24KQqi2J0ELsr2j2PLsix0JFirjW CBfzkiU0wm72x+9vviFXV8VxnZH/2CJK7TcIysuv/3qL7iRVWy4itldFjN0X+sgIivHn rvSTqOJu8BNLUJQhbi/S4UCdfiWZnx8FZCtinVsAZXtBYKE9QDHoSnsfqIQgdvYSwj3y TdTQ== X-Gm-Message-State: AC+VfDwepqdis9gY4pof9syPIQWVYMU+1wJhv+GNgo4CPu3EtzFrLRPF 7L+jQdCpVLOedd7QGMuG+5wXmYkZkEdQ X-Google-Smtp-Source: ACHHUZ6E9qc4T7u9+yG0bI7LCSWrNIIprVuEXDN8tL08Gxqy8ruadzAtjVxDCW2tLBKnP2MlbqXA+k7+GwdZ X-Received: from rananta-linux.c.googlers.com ([fda3:e722:ac3:cc00:2b:ff92:c0a8:22b5]) (user=rananta job=sendgmr) by 2002:a92:c9cb:0:b0:33e:6230:aa65 with SMTP id k11-20020a92c9cb000000b0033e6230aa65mr6242404ilq.0.1687369829258; Wed, 21 Jun 2023 10:50:29 -0700 (PDT) Date: Wed, 21 Jun 2023 17:49:59 +0000 In-Reply-To: <20230621175002.2832640-1-rananta@google.com> Mime-Version: 1.0 References: <20230621175002.2832640-1-rananta@google.com> X-Mailer: git-send-email 2.41.0.162.gfafddb0af9-goog Message-ID: <20230621175002.2832640-9-rananta@google.com> Subject: [RESEND PATCH v5 08/11] 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 , Colton Lewis , Raghavendra Rao Anata , 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 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20230621_105032_047491_9873A387 X-CRM114-Status: UNSURE ( 6.82 ) 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 --- 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 81ab41b84f436..343fb530eea9c 100644 --- a/arch/arm64/include/asm/kvm_host.h +++ b/arch/arm64/include/asm/kvm_host.h @@ -1081,6 +1081,9 @@ 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 d0a0d3dca9316..c3ec2141c3284 100644 --- a/arch/arm64/kvm/mmu.c +++ b/arch/arm64/kvm/mmu.c @@ -92,6 +92,13 @@ 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);