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 mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 52F53C433FE for ; Thu, 4 Nov 2021 16:41:20 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 385A861213 for ; Thu, 4 Nov 2021 16:41:20 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231751AbhKDQn5 (ORCPT ); Thu, 4 Nov 2021 12:43:57 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:45568 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231712AbhKDQnz (ORCPT ); Thu, 4 Nov 2021 12:43:55 -0400 Received: from mail-pf1-x44a.google.com (mail-pf1-x44a.google.com [IPv6:2607:f8b0:4864:20::44a]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 64BC2C061203 for ; Thu, 4 Nov 2021 09:41:17 -0700 (PDT) Received: by mail-pf1-x44a.google.com with SMTP id z19-20020aa79593000000b0049472f5e52dso511615pfj.13 for ; Thu, 04 Nov 2021 09:41:17 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20210112; h=reply-to:date:in-reply-to:message-id:mime-version:references :subject:from:to:cc; bh=BLpO0fOkHXhU49HszP9J7IBUy0ZTyjUC3dOvZNy0mdE=; b=TCwN7LDAPJdrI3JQ0PhC2yCcI5yLMhPl7ApX+9DhRmXyfPHERawX2DwxsXfzQpe9j7 aiStPhF6p6Nc0rQj0cQ6Mr+Q2jbguwuqGoltihH6LYnjeNZb1UignEIOlPkm8hFbdlgN yVynl+h5lLQhr4jXpCj1CaYf7Rkv4LndwkROKDmusS+uaL/A6tmofBzuYAEpvgY3MF+w 6pOCDVv8jBPc3PnWz2YdpXTN+WHrksH3DawZW7qu7EHw0YH3LzXmKSA2r4O46Hfslcwg adnajvryDs/Nm5UcX0GdIbmqjM7LYEUxG51G5Dy6nlYavqc2vn+hQO5BP+l8Bw+wIvLC LD2w== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:reply-to:date:in-reply-to:message-id :mime-version:references:subject:from:to:cc; bh=BLpO0fOkHXhU49HszP9J7IBUy0ZTyjUC3dOvZNy0mdE=; b=tJ0s/t+0xcTpzVpipg+jP7cGA/57tBSRQHZK5Wv9G+2tHrbq1Jv1OnkqX83peB7kDW ZXZ8iT9Scp+44JhiWT5tUG9wtsdk4mDcap0JU3dHx6mLy/HmJ8yBDkmDMH1yHV68COHS k1zV8EIZ+erHO0D5Gz+vQXQLsnbZhvDx8PJYo7P56Zkod0mjxP2xG8odIJRkR2RiqIVz GHMA7UBxJ2HXgUXI0onMiwpzomJkVKq2O2APRTmRPu5FQLuNWnkIdJLb9GYgjS0chMSC 9t4QBMKehFIM0jQ1aYE3JqYzL3s26wDkkBDnP6VamO7aRGqiP6gZZdu8xG1hnMQOxdoE PsEg== X-Gm-Message-State: AOAM530+X9AqlPUL7xwJPLpofEy6RGe4T1o6yw7ZRcJnol+aYvvS4VPD d7gMQjcTSUuU3a/ghvSYzwq+B1Pn8jc= X-Google-Smtp-Source: ABdhPJxBUNyqMmxEzIJpo0JuZDNZmWIY5euPfVSkwAjseNfVPNvFjkbOibNRD+fI58d1ZSdMDQWSia9J8WI= X-Received: from seanjc.c.googlers.com ([fda3:e722:ac3:cc00:7f:e700:c0a8:3e5]) (user=seanjc job=sendgmr) by 2002:a17:902:a50b:b0:141:dc7b:b2dc with SMTP id s11-20020a170902a50b00b00141dc7bb2dcmr29202914plq.4.1636044076879; Thu, 04 Nov 2021 09:41:16 -0700 (PDT) Reply-To: Sean Christopherson Date: Thu, 4 Nov 2021 16:41:06 +0000 In-Reply-To: <20211104164107.1291793-1-seanjc@google.com> Message-Id: <20211104164107.1291793-2-seanjc@google.com> Mime-Version: 1.0 References: <20211104164107.1291793-1-seanjc@google.com> X-Mailer: git-send-email 2.34.0.rc0.344.g81b53c2807-goog Subject: [PATCH 1/2] KVM: RISC-V: Unmap stage2 mapping when deleting/moving a memslot From: Sean Christopherson To: Anup Patel , Paul Walmsley , Palmer Dabbelt , Albert Ou Cc: Atish Patra , kvm@vger.kernel.org, kvm-riscv@lists.infradead.org, linux-riscv@lists.infradead.org, linux-kernel@vger.kernel.org, Sean Christopherson Content-Type: text/plain; charset="UTF-8" Precedence: bulk List-ID: X-Mailing-List: kvm@vger.kernel.org Unmap stage2 page tables when a memslot is being deleted or moved. It's the architectures' responsibility to ensure existing mappings are removed when kvm_arch_flush_shadow_memslot() returns. Fixes: 99cdc6c18c2d ("RISC-V: Add initial skeletal KVM support") Signed-off-by: Sean Christopherson --- arch/riscv/kvm/mmu.c | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/arch/riscv/kvm/mmu.c b/arch/riscv/kvm/mmu.c index d81bae8eb55e..fc058ff5f4b6 100644 --- a/arch/riscv/kvm/mmu.c +++ b/arch/riscv/kvm/mmu.c @@ -453,6 +453,12 @@ void kvm_arch_flush_shadow_all(struct kvm *kvm) void kvm_arch_flush_shadow_memslot(struct kvm *kvm, struct kvm_memory_slot *slot) { + gpa_t gpa = slot->base_gfn << PAGE_SHIFT; + phys_addr_t size = slot->npages << PAGE_SHIFT; + + spin_lock(&kvm->mmu_lock); + stage2_unmap_range(kvm, gpa, size, false); + spin_unlock(&kvm->mmu_lock); } void kvm_arch_commit_memory_region(struct kvm *kvm, -- 2.34.0.rc0.344.g81b53c2807-goog