From patchwork Thu Nov 4 00:25:13 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Sean Christopherson X-Patchwork-Id: 12602037 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 49BD5C433EF for ; Thu, 4 Nov 2021 00:27:27 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 304FE60FC2 for ; Thu, 4 Nov 2021 00:27:27 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S233145AbhKDAaC (ORCPT ); Wed, 3 Nov 2021 20:30:02 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:52644 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S233282AbhKDA24 (ORCPT ); Wed, 3 Nov 2021 20:28:56 -0400 Received: from mail-pg1-x54a.google.com (mail-pg1-x54a.google.com [IPv6:2607:f8b0:4864:20::54a]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 51515C061205 for ; Wed, 3 Nov 2021 17:26:19 -0700 (PDT) Received: by mail-pg1-x54a.google.com with SMTP id r7-20020a63ce47000000b002a5cadd2f25so2390448pgi.9 for ; Wed, 03 Nov 2021 17:26:19 -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=A6RNuBqUgsG4d2AkEOuVD6njvyuDvF4HW/gggxH+5XA=; b=OEQtzcgzg8iUsXNKyYwVPMo1zK+4Kr5qoKxGqBuItQV2mlefdBnexzTvsQV8x7tFLB DJ7N1H9zaKUjIJM9lgUrmNBtCvPaEhJRmE75YYyGNfGHftU+r7zpZ5tAJxYDGkRZ5UaN eCFKKjVPfyvAv1MPQ+W3cG8F1U785VZ2TB/bCNeburay+vZTg802nta3hX92M+l5e/kY v9PkejhG6TTnKgDhaZRjUpks89CX+RjAuwRAYXLN4sVhejbhHruqwLuHdy9a63l08zeG UQHlhHNETrOYUd9aJ76VJnvg16EQRO47SPl2LKCIPj/pp3bTuMRIyoksJkM8yu5B2mRm sSDg== 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=A6RNuBqUgsG4d2AkEOuVD6njvyuDvF4HW/gggxH+5XA=; b=7TLNIIlkD6bBswCFp/v+P3ZlUJfC4m3eaSEoq0ARf6BSdrheWk5aUF+RkqKUkNjwdk 5DKWq4ALyfdl+wmy0x8/1dueLY9VZHuXNRHzjBYkArBlVyk3Pv8XqFt6lB2I03wNT2/J dwdXSY+ILcM+26sz7eSWyEQ70OAQtYiRqK7AP0eEkDuX4Rd0Dc9rb24OAmv1ee8dtcNk 2pn/FEP3/FOH5rC7AThUJhLbzyi3FrXdnQl+A1RsNYDo9fKFynm3zCAfp2DlJp4Q+txm QPYKNIaWbq+PKSc/8D00ldje7Rs13cfC4mF0bOxNmxoQ0liVi5aEB3/WjE7s8oKaSfMO +YKw== X-Gm-Message-State: AOAM531OymghKF76iBiVFVg/XPtBTZ64HqQws3ydFhiyEk6CU7Gxcrx1 0yzHOlP615Tbj7yh9t8QlO1u4vTxFEw= X-Google-Smtp-Source: ABdhPJwlGR9LbkwslcTVo23oQzDGM/4MShAybN51snLAMyuOhBW32wf0LbVvAKT8z91bQYBzxg51jn3JWKY= X-Received: from seanjc.c.googlers.com ([fda3:e722:ac3:cc00:7f:e700:c0a8:3e5]) (user=seanjc job=sendgmr) by 2002:a05:6a00:2181:b0:44c:f4bc:2f74 with SMTP id h1-20020a056a00218100b0044cf4bc2f74mr47624205pfi.68.1635985578784; Wed, 03 Nov 2021 17:26:18 -0700 (PDT) Reply-To: Sean Christopherson Date: Thu, 4 Nov 2021 00:25:13 +0000 In-Reply-To: <20211104002531.1176691-1-seanjc@google.com> Message-Id: <20211104002531.1176691-13-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 12/30] KVM: x86: 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: James Morse , Alexandru Elisei , Suzuki K Poulose , Atish Patra , David Hildenbrand , Cornelia Huck , Claudio Imbrenda , Sean Christopherson , Vitaly Kuznetsov , Wanpeng Li , Jim Mattson , Joerg Roedel , linux-arm-kernel@lists.infradead.org, kvmarm@lists.cs.columbia.edu, linux-mips@vger.kernel.org, kvm@vger.kernel.org, kvm-ppc@vger.kernel.org, kvm-riscv@lists.infradead.org, linux-riscv@lists.infradead.org, linux-kernel@vger.kernel.org, Ben Gardon , "Maciej S . Szmigiero" Precedence: bulk List-ID: X-Mailing-List: linux-mips@vger.kernel.org Get the number of pages directly from the new memslot instead of computing the same from the userspace memory region when allocating memslot metadata. This will allow a future patch to drop @mem. No functional change intended. Signed-off-by: Sean Christopherson Reviewed-by: Maciej S. Szmigiero --- arch/x86/kvm/x86.c | 7 +++---- 1 file changed, 3 insertions(+), 4 deletions(-) diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c index aa2abca47af0..c68e7de9f116 100644 --- a/arch/x86/kvm/x86.c +++ b/arch/x86/kvm/x86.c @@ -11646,9 +11646,9 @@ int memslot_rmap_alloc(struct kvm_memory_slot *slot, unsigned long npages) } static int kvm_alloc_memslot_metadata(struct kvm *kvm, - struct kvm_memory_slot *slot, - unsigned long npages) + struct kvm_memory_slot *slot) { + unsigned long npages = slot->npages; int i, r; /* @@ -11733,8 +11733,7 @@ int kvm_arch_prepare_memory_region(struct kvm *kvm, enum kvm_mr_change change) { if (change == KVM_MR_CREATE || change == KVM_MR_MOVE) - return kvm_alloc_memslot_metadata(kvm, new, - mem->memory_size >> PAGE_SHIFT); + return kvm_alloc_memslot_metadata(kvm, new); if (change == KVM_MR_FLAGS_ONLY) memcpy(&new->arch, &old->arch, sizeof(old->arch));