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 E685FC433F5 for ; Thu, 4 Nov 2021 00:26:19 +0000 (UTC) Received: from mm01.cs.columbia.edu (mm01.cs.columbia.edu [128.59.11.253]) by mail.kernel.org (Postfix) with ESMTP id 83C2B611CA for ; Thu, 4 Nov 2021 00:26:19 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.4.1 mail.kernel.org 83C2B611CA Authentication-Results: mail.kernel.org; dmarc=fail (p=reject dis=none) header.from=google.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=lists.cs.columbia.edu Received: from localhost (localhost [127.0.0.1]) by mm01.cs.columbia.edu (Postfix) with ESMTP id 3521D4B10D; Wed, 3 Nov 2021 20:26:19 -0400 (EDT) X-Virus-Scanned: at lists.cs.columbia.edu Authentication-Results: mm01.cs.columbia.edu (amavisd-new); dkim=softfail (fail, message has been altered) header.i=@google.com Received: from mm01.cs.columbia.edu ([127.0.0.1]) by localhost (mm01.cs.columbia.edu [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id txCxHjQAWjyn; Wed, 3 Nov 2021 20:26:18 -0400 (EDT) Received: from mm01.cs.columbia.edu (localhost [127.0.0.1]) by mm01.cs.columbia.edu (Postfix) with ESMTP id 781964B19F; Wed, 3 Nov 2021 20:26:16 -0400 (EDT) Received: from localhost (localhost [127.0.0.1]) by mm01.cs.columbia.edu (Postfix) with ESMTP id 903B54B12E for ; Wed, 3 Nov 2021 20:26:15 -0400 (EDT) X-Virus-Scanned: at lists.cs.columbia.edu Received: from mm01.cs.columbia.edu ([127.0.0.1]) by localhost (mm01.cs.columbia.edu [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id uGFByQSdVXMI for ; Wed, 3 Nov 2021 20:26:14 -0400 (EDT) Received: from mail-pl1-f201.google.com (mail-pl1-f201.google.com [209.85.214.201]) by mm01.cs.columbia.edu (Postfix) with ESMTPS id A09D34B0C2 for ; Wed, 3 Nov 2021 20:26:12 -0400 (EDT) Received: by mail-pl1-f201.google.com with SMTP id k9-20020a170902c40900b001421e921ccaso1431977plk.22 for ; Wed, 03 Nov 2021 17:26:12 -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=tLQvwVMFuRU1rudmVd+Ot8DGDwWCKV2XWE4z9OvxcSI=; b=aidjRg109rDQhcbEOaDvYUP/J6xeFiJXWQHPB/9inpIU47CGJj4EB+RwhcIG070Mie lVHTfvEeNG2Brzpgw8EZNdAVeUVZ4nNqCUo0Ix5XLJ0H18oJo/2rFOKMzl6fWLSJY191 J6xXKGp+3siToXIqVebLKzjgDI+yAMnV78lg50hWKNPX/pVq2TrOflawSIczG+Lqobke Z0ZzafsHPcdo8PEDuhw/rn2m58dsopFaT3sRkFsFmilo83Ii5s7nnixu4BD3y0cdffxJ kzs8TJbXMv5IItYIkJSv/EhZBtHn1F5Yu5VOIhoRSGmVNkoq+MSSDwRM5budJwMaPSM5 i1ew== 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=tLQvwVMFuRU1rudmVd+Ot8DGDwWCKV2XWE4z9OvxcSI=; b=VJSRQXNUE8fPNEhsoRVdkAwBXHuJY4pyIDjGWqejEKB1Us78Ccr02/vGMs0LuweaXx wJa4t1KGzcQNgWM4xfLoKbGFDP+yyG3+SjQVOo169KOllzf37b7qeCQdcWwaRBRK9QY5 lNVGgoGi6vaeEIDESprL/HDi8kePQ619lZL3+BOLWOYvq1YKZ2kzNREQbXN5ieHyoUMJ FB870NMBkb9P9Pk0+Y6bFck+25Gt4rSpPFkiB8ofCUTcooOxvY7OILe4yLdfPprUt+nW DFtsiJzPPh8TpEu9xGJqYAuW+5EO13HPUdXbLw3llku4dYiARqr/ZXOiALlbIaOImEIP RQ1Q== X-Gm-Message-State: AOAM532LrrDawDuPLsZ9wwWV1HvKkQvtuTfnHUY610HUuUS5jxuep4v0 k1Sv91W5jLMcMaJcXomeQ07WOucl+EI= X-Google-Smtp-Source: ABdhPJwCsMzZuRxv6iw0pTuYU4/wjVIfD1uNyeuH4Gna3eUrPsMPSwpB1c5wUSrPuzkGj84qqgXi63hO2s0= X-Received: from seanjc.c.googlers.com ([fda3:e722:ac3:cc00:7f:e700:c0a8:3e5]) (user=seanjc job=sendgmr) by 2002:a05:6a00:1484:b0:48c:2e58:8d39 with SMTP id v4-20020a056a00148400b0048c2e588d39mr11085289pfu.13.1635985571770; Wed, 03 Nov 2021 17:26:11 -0700 (PDT) Date: Thu, 4 Nov 2021 00:25:09 +0000 In-Reply-To: <20211104002531.1176691-1-seanjc@google.com> Message-Id: <20211104002531.1176691-9-seanjc@google.com> Mime-Version: 1.0 References: <20211104002531.1176691-1-seanjc@google.com> X-Mailer: git-send-email 2.33.1.1089.g2158813163f-goog Subject: [PATCH v5.5 08/30] KVM: arm64: Use "new" memslot instead of userspace memory region From: Sean Christopherson To: Marc Zyngier , Huacai Chen , Aleksandar Markovic , Paul Mackerras , Anup Patel , Paul Walmsley , Palmer Dabbelt , Albert Ou , Christian Borntraeger , Janosch Frank , Paolo Bonzini Cc: Wanpeng Li , kvm@vger.kernel.org, David Hildenbrand , linux-kernel@vger.kernel.org, Atish Patra , Ben Gardon , "Maciej S . Szmigiero" , Claudio Imbrenda , linux-riscv@lists.infradead.org, Joerg Roedel , kvmarm@lists.cs.columbia.edu, kvm-ppc@vger.kernel.org, linux-arm-kernel@lists.infradead.org, Jim Mattson , Cornelia Huck , linux-mips@vger.kernel.org, kvm-riscv@lists.infradead.org, Vitaly Kuznetsov X-BeenThere: kvmarm@lists.cs.columbia.edu X-Mailman-Version: 2.1.14 Precedence: list Reply-To: Sean Christopherson List-Id: Where KVM/ARM decisions are made List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Errors-To: kvmarm-bounces@lists.cs.columbia.edu Sender: kvmarm-bounces@lists.cs.columbia.edu Get the slot ID, hva, etc... from the "new" memslot instead of the userspace memory region when preparing/committing a memory region. This will allow a future commit to drop @mem from the prepare/commit hooks once all architectures convert to using "new". Opportunistically wait to get the hva begin+end until after filtering out the DELETE case in anticipation of a future commit passing NULL for @new when deleting a memslot. Signed-off-by: Sean Christopherson --- arch/arm64/kvm/mmu.c | 10 ++++++---- 1 file changed, 6 insertions(+), 4 deletions(-) diff --git a/arch/arm64/kvm/mmu.c b/arch/arm64/kvm/mmu.c index cc41eadfbbf4..21213cba7c47 100644 --- a/arch/arm64/kvm/mmu.c +++ b/arch/arm64/kvm/mmu.c @@ -1473,14 +1473,14 @@ void kvm_arch_commit_memory_region(struct kvm *kvm, * allocated dirty_bitmap[], dirty pages will be tracked while the * memory slot is write protected. */ - if (change != KVM_MR_DELETE && mem->flags & KVM_MEM_LOG_DIRTY_PAGES) { + if (change != KVM_MR_DELETE && new->flags & KVM_MEM_LOG_DIRTY_PAGES) { /* * If we're with initial-all-set, we don't need to write * protect any pages because they're all reported as dirty. * Huge pages and normal pages will be write protect gradually. */ if (!kvm_dirty_log_manual_protect_and_init_set(kvm)) { - kvm_mmu_wp_memory_region(kvm, mem->slot); + kvm_mmu_wp_memory_region(kvm, new->id); } } } @@ -1491,8 +1491,7 @@ int kvm_arch_prepare_memory_region(struct kvm *kvm, struct kvm_memory_slot *new, enum kvm_mr_change change) { - hva_t hva = mem->userspace_addr; - hva_t reg_end = hva + mem->memory_size; + hva_t hva, reg_end; int ret = 0; if (change != KVM_MR_CREATE && change != KVM_MR_MOVE && @@ -1506,6 +1505,9 @@ int kvm_arch_prepare_memory_region(struct kvm *kvm, if ((new->base_gfn + new->npages) > (kvm_phys_size(kvm) >> PAGE_SHIFT)) return -EFAULT; + hva = new->userspace_addr; + reg_end = hva + (new->npages << PAGE_SHIFT); + mmap_read_lock(current->mm); /* * A memory region could potentially cover multiple VMAs, and any holes -- 2.33.1.1089.g2158813163f-goog _______________________________________________ kvmarm mailing list kvmarm@lists.cs.columbia.edu https://lists.cs.columbia.edu/mailman/listinfo/kvmarm