From patchwork Sat Jul 22 02:22:48 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: 13322714 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 D5EAEEB64DD for ; Sat, 22 Jul 2023 02:23:18 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231207AbjGVCXQ (ORCPT ); Fri, 21 Jul 2023 22:23:16 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:51938 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231181AbjGVCXF (ORCPT ); Fri, 21 Jul 2023 22:23:05 -0400 Received: from mail-yw1-x114a.google.com (mail-yw1-x114a.google.com [IPv6:2607:f8b0:4864:20::114a]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 9605130E3 for ; Fri, 21 Jul 2023 19:23:04 -0700 (PDT) Received: by mail-yw1-x114a.google.com with SMTP id 00721157ae682-58398367e4eso11858887b3.0 for ; Fri, 21 Jul 2023 19:23:04 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20221208; t=1689992584; x=1690597384; h=cc:to:from:subject:message-id:references:mime-version:in-reply-to :date:from:to:cc:subject:date:message-id:reply-to; bh=akm4rYoa5SWJwDL1p07vXyqImi8p1ZVsCq+MNzl6DtA=; b=gD47/RM4uIWWB198/JeUALJq9RfWDqhNJ9T5fekg0gN1CVJhZjOmQC08507malSUwO o8ec3lTUjSjfYC2IbUqRVy/vilrsVI8K95GVPsWlQt/qMh/hSichPIFf1Wekk8S82QaE aVRm06MJGxxB3ZyI2EnZn9V/QdvXIJ8ab6Dhuw8+FQ47EWQsWa9EmDNplWPwsPvOynXC jScOlOR/WNZmECtmPX+CzDPzHwrYlcah9TbaF8K5Alw1WCy7ukloCqn7xLelXXi0WAXJ ELXUAYxDpW3SIEct6UF/c4gbo3AktDz7eTG5eF/V+xS8z5st6Vf5lBWUrNNu9Q2slUD4 LXsA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20221208; t=1689992584; x=1690597384; 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=akm4rYoa5SWJwDL1p07vXyqImi8p1ZVsCq+MNzl6DtA=; b=Pfh+0WXRVG9jXfkVlpM9C4NJyWLi/7rALAWHX7LUI2HQ9DBrI1nkXNwniRBGISnzx2 0vP5qxCr+PB8PfUhSDch2ZQhLqo8+VNt9Gubgv6ZJPQdR2QNEEBC0CbISniOAlSrRs8h rOuRdDRWyii7B8jQugz7BsxvpMThvBqtB3aSPFeuSfl/TDXr+yEJ/z9/AeEHjAlI66J0 IGhOfR3vTr/ZPF/2IQKpOpuo/IgEZh/QBycpoxFJuKjxFlZSnXRDYm6baajrPByXkLXU AjQS3aX7ttm+5RaEVrv86XlJZ+0l7geNF4gHIDrMevR/XVpweE7v0c0/Y28gCN3Z7NXK 7JpQ== X-Gm-Message-State: ABy/qLY4wXeWXrveGGG2p2gaK6GBg6ZabhbYmDCeBvGo+eAIoSu1+Jg5 FG89yjb7PKatddOfqcSgAsjabYJj695p X-Google-Smtp-Source: APBJJlFexiNbjtr9UnRFqoiOgPpMB6cQsXecNSzI+a2TM+h9ESr77gcH7b0vgVuv18SKk9XbnT1XiXcZKWub X-Received: from rananta-linux.c.googlers.com ([fda3:e722:ac3:cc00:2b:ff92:c0a8:22b5]) (user=rananta job=sendgmr) by 2002:a25:aa05:0:b0:cf0:e2a2:eb3b with SMTP id s5-20020a25aa05000000b00cf0e2a2eb3bmr22446ybi.4.1689992583856; Fri, 21 Jul 2023 19:23:03 -0700 (PDT) Date: Sat, 22 Jul 2023 02:22:48 +0000 In-Reply-To: <20230722022251.3446223-1-rananta@google.com> Mime-Version: 1.0 References: <20230722022251.3446223-1-rananta@google.com> X-Mailer: git-send-email 2.41.0.487.g6d72f3e995-goog Message-ID: <20230722022251.3446223-10-rananta@google.com> Subject: [PATCH v7 09/12] 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 , 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 Precedence: bulk List-ID: X-Mailing-List: linux-mips@vger.kernel.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 | 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);