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 vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 9375EC433F5 for ; Mon, 4 Apr 2022 23:42:18 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230029AbiDDXoN (ORCPT ); Mon, 4 Apr 2022 19:44:13 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:52158 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229880AbiDDXoF (ORCPT ); Mon, 4 Apr 2022 19:44:05 -0400 Received: from mail-pf1-x449.google.com (mail-pf1-x449.google.com [IPv6:2607:f8b0:4864:20::449]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 69F465640A for ; Mon, 4 Apr 2022 16:42:03 -0700 (PDT) Received: by mail-pf1-x449.google.com with SMTP id y189-20020a6264c6000000b004faecedcb81so6798791pfb.7 for ; Mon, 04 Apr 2022 16:42:03 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20210112; h=date:in-reply-to:message-id:mime-version:references:subject:from:to :cc; bh=CaD5i7uWV8aXENdqT5/Q1IvKQzX6yvHELCk0D3aIz+A=; b=jZKt3Q4Wq9KSvffmXMldabyC+4MvZErOoCul5wp26X3fVT7avqVOywE6dRTV5JJo11 Lm4ZyJkQKcU6bzStWVXFKpng/HMzb0ZtmfE6Nd/d6RU6cNkQ84Wt3BpalH6kyvulvAYr zShnZTa4A2gBE2r/kwAWzJBueRGlu4o86+XfaQ68iLhbvA/N2T1r2CnXE7LYiv3IBC9b 3CL7MFjQ40fQAwER6JcDbx/XuT0DGvKUPlXuLZNEWli6lVkHQPjWTLNfDUk4OjPqLTYU 2oyOjUsiPjPTpHWPApftGdp/0I5gf1OiMGXydG4zv0rrxfDYablQdArb0FX9DyXUBsbK 23jQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:date:in-reply-to:message-id:mime-version :references:subject:from:to:cc; bh=CaD5i7uWV8aXENdqT5/Q1IvKQzX6yvHELCk0D3aIz+A=; b=1ulQsImwbjg5JAP0tii9ZQUQ2l41QsrML0pZXJWj01U7kJuKLXZ/MKysi3vdma0ZfM 4zrIDUd6MLzjzOgZwO1l/JlPxPMPjy6aQU9C5Tdk7u9eLQ729/j5huPHG9nzepR7gkJw tp5K0fA8GV/2WT/8bz8KX8g2Az9RWoCAA4Jbm6i7ffGwAhUv3EO4Wta2lE4ySMw/UdnW hzpZ2iCkuHSUNFM7bXzEE79dB/CTj7dSOLogyfgjhhmO3C0WPSQSS/JrW4WnE28JcsbA kpZaB7HRjfQ3Pn2SLVBZ/fyIAb98kIoZQK6JT59Is35cSTSMV4Hm0OqB7UpjynFafS+e H5Pg== X-Gm-Message-State: AOAM533oqr/IM+JoX7B7dcvOvzSYqZPOZkumVRfBKRABt+3qvPFQzatS WsFJqXjaYeFITu3Bxyt7R4DIGf4Tzp4jLrqE X-Google-Smtp-Source: ABdhPJznx5CPgiI0z19F0ZkzF+3RdCQG8+R2KZlvfK7h7Xj/Uh7x/vARspwj7iObyoaIy9/NWmWCwv74G/ufbWL6 X-Received: from yosry.c.googlers.com ([fda3:e722:ac3:cc00:7f:e700:c0a8:2327]) (user=yosryahmed job=sendgmr) by 2002:a17:90a:db48:b0:1ca:ab67:d75 with SMTP id u8-20020a17090adb4800b001caab670d75mr73933pjx.1.1649115722406; Mon, 04 Apr 2022 16:42:02 -0700 (PDT) Date: Mon, 4 Apr 2022 23:41:50 +0000 In-Reply-To: <20220404234154.1251388-1-yosryahmed@google.com> Message-Id: <20220404234154.1251388-2-yosryahmed@google.com> Mime-Version: 1.0 References: <20220404234154.1251388-1-yosryahmed@google.com> X-Mailer: git-send-email 2.35.1.1094.g7c7d902a7c-goog Subject: [PATCH v2 1/5] KVM: mm: add a helper to account page table pages used by KVM. From: Yosry Ahmed To: Huacai Chen , Aleksandar Markovic , Anup Patel , Atish Patra , Paolo Bonzini , Sean Christopherson , Vitaly Kuznetsov , Wanpeng Li , Jim Mattson , Joerg Roedel Cc: mizhang@google.com, David Matlack , kvm@vger.kernel.org, kvm-riscv@lists.infradead.org, linux-mips@vger.kernel.org, linux-mm@kvack.org, linux-kernel@vger.kernel.org, Shakeel Butt , Andrew Morton , Yosry Ahmed Content-Type: text/plain; charset="UTF-8" Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Add a helper to account pages used by KVM for page tables as pagetable stats. This function will be used by subsequent patches in different archs. Signed-off-by: Yosry Ahmed --- include/linux/kvm_host.h | 9 +++++++++ 1 file changed, 9 insertions(+) diff --git a/include/linux/kvm_host.h b/include/linux/kvm_host.h index 252ee4a61b58..ca46b68e7086 100644 --- a/include/linux/kvm_host.h +++ b/include/linux/kvm_host.h @@ -2221,6 +2221,15 @@ static inline void kvm_handle_signal_exit(struct kvm_vcpu *vcpu) } #endif /* CONFIG_KVM_XFER_TO_GUEST_WORK */ +/* + * If nr > 1, we assume virt is the address of the first page of a block of + * pages that were allocated together (i.e accounted together). + */ +static inline void kvm_account_pgtable_pages(void *virt, int nr) +{ + mod_lruvec_page_state(virt_to_page(virt), NR_PAGETABLE, nr); +} + /* * This defines how many reserved entries we want to keep before we * kick the vcpu to the userspace to avoid dirty ring full. This -- 2.35.1.1094.g7c7d902a7c-goog