From patchwork Sat Feb 2 01:38:19 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Tianyu Lan X-Patchwork-Id: 1035301 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Authentication-Results: ozlabs.org; spf=none (mailfrom) smtp.mailfrom=vger.kernel.org (client-ip=209.132.180.67; helo=vger.kernel.org; envelope-from=kvm-ppc-owner@vger.kernel.org; receiver=) Authentication-Results: ozlabs.org; dmarc=fail (p=none dis=none) header.from=gmail.com Authentication-Results: ozlabs.org; dkim=fail reason="signature verification failed" (2048-bit key; unprotected) header.d=gmail.com header.i=@gmail.com header.b="JKl4t9Ss"; dkim-atps=neutral Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by ozlabs.org (Postfix) with ESMTP id 43rxTg08xNz9sNM for ; Sat, 2 Feb 2019 12:39:19 +1100 (AEDT) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727747AbfBBBjL (ORCPT ); Fri, 1 Feb 2019 20:39:11 -0500 Received: from mail-pg1-f196.google.com ([209.85.215.196]:40130 "EHLO mail-pg1-f196.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727680AbfBBBjK (ORCPT ); Fri, 1 Feb 2019 20:39:10 -0500 Received: by mail-pg1-f196.google.com with SMTP id z10so3751907pgp.7; Fri, 01 Feb 2019 17:39:10 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=from:to:cc:subject:date:message-id:in-reply-to:references; bh=QkCKWdNQDd7n0mb8dlG6t1culFOMAQghK/Ej0OwX5M0=; b=JKl4t9SsRWFQRqm/2ykkdDbszCjiZIyL9GEDu1emOACGiirfjKR4PU2Y1yFEaeqHLe 4Gg4rW7yrPMnpiI0rSIwiM8z2uBBUK/Ol8t+l1N1VxwoceQdtJBxJeNkd4oXCXGX81Ln /mA+Fi7RDYkiSi5AJlTWoN2SUEgpHbUuXQrcQbSmKlwxk2aHCImQkJLlezWkOovxwH/r pdVkbF/4t7THhVIvbGyuKG1ZlsttuJYikvG2qecvpaGfUuC9O3QNWZVxRbeg1svaAD8C EQJQrmp2Uw8Htj/sc9HDeAQO0XwYAHiepwQfXGOUnd4F6iyTf9QGL+LEgTPPwhG6DHWC qGOg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references; bh=QkCKWdNQDd7n0mb8dlG6t1culFOMAQghK/Ej0OwX5M0=; b=WL02MygEvcVKAo03lucB9shsluSPQsnGY/Divr196p5im0CGDQp4CgTZJHCe1DlY4u mUyIUhOIdoXGquGPTO3YwI5hazYK50CoZxlb8ZRM108pDy155idgjesQdYj0gpQtI+0v JykC74054b4Rh9ZwfXR3oV+hE5B/4Ck7FZrZX2BlAEqFbjfYdCz03//rNd8JvCGmeHO2 hJCEh/NLfeTWql1hkKfI7QMmlf7KlsV2bEHoYDEUJEOUNFt/MF4AkHVv+m+QaNuq8lZN ZIJN2engihDoFtiXYuwl9u8DkEBOUpVrluJj1h7hn+w34lKO/sLLxfNKrYetOrwXZ2Eg uVgw== X-Gm-Message-State: AHQUAuYsn9XLmSxnxEJFaQcUqJq6gjKQqIPHo7N3ZgfJfwuu1u2HFPbC njrkXlZYdHGf/7VoEzD++Kk= X-Google-Smtp-Source: AHgI3IYtiYj+YWXlKinAagZU+CzzWQGsIguvJwkSw/9h/aC/bdhFYr+TlIVLI3IuHned8yzL8VgVKw== X-Received: by 2002:a65:6542:: with SMTP id a2mr4544721pgw.389.1549071549793; Fri, 01 Feb 2019 17:39:09 -0800 (PST) Received: from localhost.corp.microsoft.com ([167.220.255.67]) by smtp.googlemail.com with ESMTPSA id d3sm9183425pgl.64.2019.02.01.17.39.02 (version=TLS1_2 cipher=ECDHE-RSA-CHACHA20-POLY1305 bits=256/256); Fri, 01 Feb 2019 17:39:09 -0800 (PST) From: lantianyu1986@gmail.com X-Google-Original-From: Tianyu.Lan@microsoft.com Cc: Lan Tianyu , christoffer.dall@arm.com, marc.zyngier@arm.com, linux@armlinux.org.uk, catalin.marinas@arm.com, will.deacon@arm.com, jhogan@kernel.org, ralf@linux-mips.org, paul.burton@mips.com, paulus@ozlabs.org, benh@kernel.crashing.org, mpe@ellerman.id.au, pbonzini@redhat.com, rkrcmar@redhat.com, tglx@linutronix.de, mingo@redhat.com, bp@alien8.de, hpa@zytor.com, x86@kernel.org, linux-arm-kernel@lists.infradead.org, kvmarm@lists.cs.columbia.edu, linux-kernel@vger.kernel.org, linux-mips@vger.kernel.org, kvm-ppc@vger.kernel.org, linuxppc-dev@lists.ozlabs.org, kvm@vger.kernel.org, michael.h.kelley@microsoft.com, kys@microsoft.com, vkuznets@redhat.com Subject: [PATCH V2 3/10] KVM/MMU: Add last_level in the struct mmu_spte_page Date: Sat, 2 Feb 2019 09:38:19 +0800 Message-Id: <20190202013825.51261-4-Tianyu.Lan@microsoft.com> X-Mailer: git-send-email 2.14.4 In-Reply-To: <20190202013825.51261-1-Tianyu.Lan@microsoft.com> References: <20190202013825.51261-1-Tianyu.Lan@microsoft.com> To: unlisted-recipients:; (no To-header on input) Sender: kvm-ppc-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: kvm-ppc@vger.kernel.org From: Lan Tianyu This patch is to add last_level in the struct kvm_mmu_page. When build flush tlb range list, last_level will be used to identify whehter the page should be added into list. Signed-off-by: Lan Tianyu --- arch/x86/include/asm/kvm_host.h | 1 + arch/x86/kvm/mmu.c | 3 +++ 2 files changed, 4 insertions(+) diff --git a/arch/x86/include/asm/kvm_host.h b/arch/x86/include/asm/kvm_host.h index 4a3d3e58fe0a..9d858d68c17a 100644 --- a/arch/x86/include/asm/kvm_host.h +++ b/arch/x86/include/asm/kvm_host.h @@ -325,6 +325,7 @@ struct kvm_mmu_page { struct hlist_node flush_link; struct hlist_node hash_link; bool unsync; + bool last_level; /* * The following two entries are used to key the shadow page in the diff --git a/arch/x86/kvm/mmu.c b/arch/x86/kvm/mmu.c index ce770b446238..70cafd3f95ab 100644 --- a/arch/x86/kvm/mmu.c +++ b/arch/x86/kvm/mmu.c @@ -2918,6 +2918,9 @@ static int set_spte(struct kvm_vcpu *vcpu, u64 *sptep, if (level > PT_PAGE_TABLE_LEVEL) spte |= PT_PAGE_SIZE_MASK; + + sp->last_level = is_last_spte(spte, level); + if (tdp_enabled) spte |= kvm_x86_ops->get_mt_mask(vcpu, gfn, kvm_is_mmio_pfn(pfn));