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 X-Spam-Level: X-Spam-Status: No, score=-26.3 required=3.0 tests=BAYES_00,DKIMWL_WL_MED, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_CR_TRAILER,INCLUDES_PATCH,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS, USER_AGENT_GIT,USER_IN_DEF_DKIM_WL autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 361D9C4332E for ; Thu, 18 Mar 2021 22:44:26 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 1BDE664F11 for ; Thu, 18 Mar 2021 22:44:26 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S233254AbhCRWn5 (ORCPT ); Thu, 18 Mar 2021 18:43:57 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:49420 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232363AbhCRWnV (ORCPT ); Thu, 18 Mar 2021 18:43:21 -0400 Received: from mail-yb1-xb4a.google.com (mail-yb1-xb4a.google.com [IPv6:2607:f8b0:4864:20::b4a]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id D53FBC06175F for ; Thu, 18 Mar 2021 15:43:20 -0700 (PDT) Received: by mail-yb1-xb4a.google.com with SMTP id 127so50046025ybc.19 for ; Thu, 18 Mar 2021 15:43:20 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20161025; h=reply-to:date:in-reply-to:message-id:mime-version:references :subject:from:to:cc; bh=77EhQ2wiyvQkkpWDHBwQ63WL6CQbHYQ2QwkWHK42ktA=; b=RZBH/8GoGf+A4KEAwsf+dNlbb1dfmW/E2QuidwQetRa+cKkeRrI0PA8w0fKz1EkXH9 PjYQYRg09bN6i0xBJreH8Vctq50Z6acolUMaCR7Fz8Q6qfsmlTEMHZMbIMvUzv3as4Ev J/Y5wJ/gwL+o0vHUcAMsx+vUqcJjDR2Kd0iWh7lW9w4Rj100eESoyeoJgr0DWkj6M1NM Ejol8YBS+6+Fo3g2RH4TDK5nlmvAuxAMd5IYs+mYWx58l9bfdnoYdZH0ivgz2DeaQUkA 91V/l/6WtjOJzz/DbDmCSksaH4BmjwCoU2n3A3G1qb734C0lcIwvP/JDnJIXK1e3T3KV UUOQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:reply-to:date:in-reply-to:message-id :mime-version:references:subject:from:to:cc; bh=77EhQ2wiyvQkkpWDHBwQ63WL6CQbHYQ2QwkWHK42ktA=; b=pdup+rc/vOO8RdZOLuTLT2afb9d4IWqFw1+KDVF1SaFOx0R1um6fw0/7L9uknE8bGq tNyJmidtDJXKAZYJ6VXe2q54tegpKDnydkW7DiSBy18oOb7iM5pN0wDDGgVsfpy8OiGM xNlw1OVrLkFtfeLXBdIhbUeQCglQ5LnHfsIouhYWt0NpRqGr+4VkUk/e3f1AfFpXQBx0 oK9uBK5H/D4EQb6ZGBGM4s0kast85ArBjuZJ5UORS1qTSxcJz8CtFiIn4KXJkzcFaS4E 3v8Lm7fbhjkeWU0i2d6Ooak85OKTlKgtcboqhkBByXzGeWb4I+dOBc2+j0ozagoDZMX4 sWsQ== X-Gm-Message-State: AOAM531N4kw/A0eeNxUSPCUT71Fvf2JeKLNKuDEQPLm8ORgTt7atWgVr xORmUfX8e/4qwa+Rm8ZBEzsiqi5trqc= X-Google-Smtp-Source: ABdhPJyGtDXgmDstodtsMHSUiv5Y0nqQOLIAWyCHcntjCIFseI1djytwUNrY6a/FPhyouwaXxErLbXFs6e4= X-Received: from seanjc798194.pdx.corp.google.com ([2620:15c:f:10:25e0:6b8b:f878:23d1]) (user=seanjc job=sendgmr) by 2002:a25:7449:: with SMTP id p70mr2263002ybc.167.1616107400146; Thu, 18 Mar 2021 15:43:20 -0700 (PDT) Reply-To: Sean Christopherson Date: Thu, 18 Mar 2021 15:43:09 -0700 In-Reply-To: <20210318224310.3274160-1-seanjc@google.com> Message-Id: <20210318224310.3274160-4-seanjc@google.com> Mime-Version: 1.0 References: <20210318224310.3274160-1-seanjc@google.com> X-Mailer: git-send-email 2.31.0.rc2.261.g7f71774620-goog Subject: [PATCH v2 3/4] KVM: VMX: Macrofy the MSR bitmap getters and setters From: Sean Christopherson To: Paolo Bonzini Cc: Sean Christopherson , Vitaly Kuznetsov , Wanpeng Li , Jim Mattson , Joerg Roedel , kvm@vger.kernel.org, linux-kernel@vger.kernel.org, Alexander Graf , Yuan Yao Content-Type: text/plain; charset="UTF-8" Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Add builder macros to generate the MSR bitmap helpers to reduce the amount of copy-paste code, especially with respect to all the magic numbers needed to calc the correct bit location. No functional change intended. Signed-off-by: Sean Christopherson --- arch/x86/kvm/vmx/vmx.h | 77 ++++++++++-------------------------------- 1 file changed, 17 insertions(+), 60 deletions(-) diff --git a/arch/x86/kvm/vmx/vmx.h b/arch/x86/kvm/vmx/vmx.h index a6000c91b897..42c25fc79427 100644 --- a/arch/x86/kvm/vmx/vmx.h +++ b/arch/x86/kvm/vmx/vmx.h @@ -393,68 +393,25 @@ void vmx_set_intercept_for_msr(struct kvm_vcpu *vcpu, u32 msr, int type, bool value); void vmx_update_cpu_dirty_logging(struct kvm_vcpu *vcpu); -static inline bool vmx_test_msr_bitmap_read(ulong *msr_bitmap, u32 msr) -{ - int f = sizeof(unsigned long); - - if (msr <= 0x1fff) - return test_bit(msr, msr_bitmap + 0x000 / f); - else if ((msr >= 0xc0000000) && (msr <= 0xc0001fff)) - return test_bit(msr & 0x1fff, msr_bitmap + 0x400 / f); - return true; -} - -static inline bool vmx_test_msr_bitmap_write(ulong *msr_bitmap, u32 msr) -{ - int f = sizeof(unsigned long); - - if (msr <= 0x1fff) - return test_bit(msr, msr_bitmap + 0x800 / f); - else if ((msr >= 0xc0000000) && (msr <= 0xc0001fff)) - return test_bit(msr & 0x1fff, msr_bitmap + 0xc00 / f); - return true; -} - -static inline void vmx_clear_msr_bitmap_read(ulong *msr_bitmap, u32 msr) -{ - int f = sizeof(unsigned long); - - if (msr <= 0x1fff) - __clear_bit(msr, msr_bitmap + 0x000 / f); - else if ((msr >= 0xc0000000) && (msr <= 0xc0001fff)) - __clear_bit(msr & 0x1fff, msr_bitmap + 0x400 / f); -} - -static inline void vmx_clear_msr_bitmap_write(ulong *msr_bitmap, u32 msr) -{ - int f = sizeof(unsigned long); - - if (msr <= 0x1fff) - __clear_bit(msr, msr_bitmap + 0x800 / f); - else if ((msr >= 0xc0000000) && (msr <= 0xc0001fff)) - __clear_bit(msr & 0x1fff, msr_bitmap + 0xc00 / f); -} - -static inline void vmx_set_msr_bitmap_read(ulong *msr_bitmap, u32 msr) -{ - int f = sizeof(unsigned long); - - if (msr <= 0x1fff) - __set_bit(msr, msr_bitmap + 0x000 / f); - else if ((msr >= 0xc0000000) && (msr <= 0xc0001fff)) - __set_bit(msr & 0x1fff, msr_bitmap + 0x400 / f); -} - -static inline void vmx_set_msr_bitmap_write(ulong *msr_bitmap, u32 msr) -{ - int f = sizeof(unsigned long); - - if (msr <= 0x1fff) - __set_bit(msr, msr_bitmap + 0x800 / f); - else if ((msr >= 0xc0000000) && (msr <= 0xc0001fff)) - __set_bit(msr & 0x1fff, msr_bitmap + 0xc00 / f); +#define __BUILD_VMX_MSR_BITMAP_HELPER(rtype, action, bitop, access, base) \ +static inline rtype vmx_##action##_msr_bitmap_##access(unsigned long *bitmap, \ + u32 msr) \ +{ \ + int f = sizeof(unsigned long); \ + \ + if (msr <= 0x1fff) \ + return bitop##_bit(msr, bitmap + base / f); \ + else if ((msr >= 0xc0000000) && (msr <= 0xc0001fff)) \ + return bitop##_bit(msr & 0x1fff, bitmap + (base + 0x400) / f); \ + return (rtype)true; \ } +#define BUILD_VMX_MSR_BITMAP_HELPERS(ret_type, action, bitop) \ + __BUILD_VMX_MSR_BITMAP_HELPER(ret_type, action, bitop, read, 0x0) \ + __BUILD_VMX_MSR_BITMAP_HELPER(ret_type, action, bitop, write, 0x800) +BUILD_VMX_MSR_BITMAP_HELPERS(bool, test, test) +BUILD_VMX_MSR_BITMAP_HELPERS(void, clear, __clear) +BUILD_VMX_MSR_BITMAP_HELPERS(void, set, __set) static inline u8 vmx_get_rvi(void) { -- 2.31.0.rc2.261.g7f71774620-goog