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=-9.9 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH, MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT 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 425AFC432C0 for ; Mon, 2 Dec 2019 20:13:33 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 05C6A21774 for ; Mon, 2 Dec 2019 20:13:33 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=redhat.com header.i=@redhat.com header.b="EJDJGtb9" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728182AbfLBUNb (ORCPT ); Mon, 2 Dec 2019 15:13:31 -0500 Received: from us-smtp-delivery-1.mimecast.com ([205.139.110.120]:43149 "EHLO us-smtp-1.mimecast.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1728151AbfLBUN2 (ORCPT ); Mon, 2 Dec 2019 15:13:28 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1575317606; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=K3f4R1TqR6G7UxbCAAe5fXF8uu/FH0Su8QCoaxdvYGE=; b=EJDJGtb94zLTYbcAoZyhzgV+uTN/AkhbSmcV0fIT+z4X7ll0OPqTYeoXrVQPtQWOcCtI43 pROImFMAQYjEAcd3tmHsLNJ9hsLpM4hk1XLUng8uYN5FxvVY7mmDF3mPV0qMwJJUGXI4h0 JMYajN9izwDqTTslZaBviPnfwkuB7o4= Received: from mail-qk1-f197.google.com (mail-qk1-f197.google.com [209.85.222.197]) (Using TLS) by relay.mimecast.com with ESMTP id us-mta-50-J7zHYdMiOMq21hlYEXBz5A-1; Mon, 02 Dec 2019 15:13:25 -0500 Received: by mail-qk1-f197.google.com with SMTP id j192so507003qke.3 for ; Mon, 02 Dec 2019 12:13:24 -0800 (PST) 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:mime-version:content-transfer-encoding; bh=R/XU4Dr7ARItxZIxIQIizWVEl4x5hbtpNhm0u7fErCg=; b=hNYjsTUs1RVtbbmKuwPWjbje+RNLMf685QZgYR4OF4/hBsXwylBjYJ+BDMqTkAIpqo Gv13z/nCH14RFXt5x/C7DYLqCAKOaNUozQnjyO0Y+o/asuhCYHUZGoVK0JM+LbRXKa8l c6Sps3WEMIstvB72h8zeBL88UUxXwCJejus4UtF+PcsyK1d9Qnh/oWIjEvpCrBCn/DB9 aezm83Se7aCTDsYNIQYIf9gqh3eE8bzvCrA/jdO3UPjvnSlspxTjzlyaLmjLdMqLSedw Xfis/CTBXz4x7N2aaVlgOGk9OWzh7HlfsM2tqeplo/jUYDoUdDWTVM20Fap9zeaaOwbD XhLA== X-Gm-Message-State: APjAAAVFx5eL+eJF6mONaVHD8JxBLLjHKT7wDXnA187GieCb5Q/Auu5l SpYNl8AhN+GcRtYVO0QDds3Z3sG9oom4k4dO6d4WLWW9X9OPga+x3B80uDucahziWPvFFOsNa0h zjqcqUrxuGfIo X-Received: by 2002:aed:3801:: with SMTP id j1mr1367427qte.48.1575317604513; Mon, 02 Dec 2019 12:13:24 -0800 (PST) X-Google-Smtp-Source: APXvYqw/9mtWQfg77PfrMmvIPQaca1gHr6J7yxGVs8qMBfMOh9LiPmHVcaxxTAuWGFFzLmzJFxdeXg== X-Received: by 2002:aed:3801:: with SMTP id j1mr1367401qte.48.1575317604260; Mon, 02 Dec 2019 12:13:24 -0800 (PST) Received: from xz-x1.yyz.redhat.com ([104.156.64.74]) by smtp.gmail.com with ESMTPSA id b6sm342410qtp.5.2019.12.02.12.13.22 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 02 Dec 2019 12:13:23 -0800 (PST) From: Peter Xu To: linux-kernel@vger.kernel.org, kvm@vger.kernel.org Cc: Nitesh Narayan Lal , Paolo Bonzini , Sean Christopherson , peterx@redhat.com, Vitaly Kuznetsov Subject: [PATCH v3 3/5] KVM: X86: Use APIC_DEST_* macros properly in kvm_lapic_irq.dest_mode Date: Mon, 2 Dec 2019 15:13:12 -0500 Message-Id: <20191202201314.543-4-peterx@redhat.com> X-Mailer: git-send-email 2.21.0 In-Reply-To: <20191202201314.543-1-peterx@redhat.com> References: <20191202201314.543-1-peterx@redhat.com> MIME-Version: 1.0 X-MC-Unique: J7zHYdMiOMq21hlYEXBz5A-1 X-Mimecast-Spam-Score: 0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: quoted-printable Sender: kvm-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: kvm@vger.kernel.org We were using either APIC_DEST_PHYSICAL|APIC_DEST_LOGICAL or 0|1 to fill in kvm_lapic_irq.dest_mode. It's fine only because in most cases when we check against dest_mode it's against APIC_DEST_PHYSICAL (which equals to 0). However, that's not consistent. We'll have problem when we want to start checking against APIC_DEST_PHYSICAL, which does not equals to 1. This patch firstly introduces kvm_lapic_irq_dest_mode() helper to take any boolean of destination mode and return the APIC_DEST_* macro. Then, it replaces the 0|1 settings of irq.dest_mode with the helper. Signed-off-by: Peter Xu --- arch/x86/include/asm/kvm_host.h | 5 +++++ arch/x86/kvm/ioapic.c | 8 +++++--- arch/x86/kvm/irq_comm.c | 7 ++++--- arch/x86/kvm/x86.c | 2 +- 4 files changed, 15 insertions(+), 7 deletions(-) diff --git a/arch/x86/include/asm/kvm_host.h b/arch/x86/include/asm/kvm_hos= t.h index b79cd6aa4075..f815c97b1b57 100644 --- a/arch/x86/include/asm/kvm_host.h +++ b/arch/x86/include/asm/kvm_host.h @@ -1022,6 +1022,11 @@ struct kvm_lapic_irq { =09bool msi_redir_hint; }; =20 +static inline u16 kvm_lapic_irq_dest_mode(bool dest_mode) +{ +=09return dest_mode ? APIC_DEST_LOGICAL : APIC_DEST_PHYSICAL; +} + struct kvm_x86_ops { =09int (*cpu_has_kvm_support)(void); /* __init */ =09int (*disabled_by_bios)(void); /* __init */ diff --git a/arch/x86/kvm/ioapic.c b/arch/x86/kvm/ioapic.c index 9fd2dd89a1c5..901d85237d1c 100644 --- a/arch/x86/kvm/ioapic.c +++ b/arch/x86/kvm/ioapic.c @@ -331,7 +331,8 @@ static void ioapic_write_indirect(struct kvm_ioapic *io= apic, u32 val) =09=09=09irq.vector =3D e->fields.vector; =09=09=09irq.delivery_mode =3D e->fields.delivery_mode << 8; =09=09=09irq.dest_id =3D e->fields.dest_id; -=09=09=09irq.dest_mode =3D e->fields.dest_mode; +=09=09=09irq.dest_mode =3D +=09=09=09 kvm_lapic_irq_dest_mode(e->fields.dest_mode); =09=09=09bitmap_zero(&vcpu_bitmap, 16); =09=09=09kvm_bitmap_or_dest_vcpus(ioapic->kvm, &irq, =09=09=09=09=09=09 &vcpu_bitmap); @@ -343,7 +344,8 @@ static void ioapic_write_indirect(struct kvm_ioapic *io= apic, u32 val) =09=09=09=09 * keep ioapic_handled_vectors synchronized. =09=09=09=09 */ =09=09=09=09irq.dest_id =3D old_dest_id; -=09=09=09=09irq.dest_mode =3D old_dest_mode; +=09=09=09=09irq.dest_mode =3D +=09=09=09=09 kvm_lapic_irq_dest_mode(e->fields.dest_mode); =09=09=09=09kvm_bitmap_or_dest_vcpus(ioapic->kvm, &irq, =09=09=09=09=09=09=09 &vcpu_bitmap); =09=09=09} @@ -369,7 +371,7 @@ static int ioapic_service(struct kvm_ioapic *ioapic, in= t irq, bool line_status) =20 =09irqe.dest_id =3D entry->fields.dest_id; =09irqe.vector =3D entry->fields.vector; -=09irqe.dest_mode =3D entry->fields.dest_mode; +=09irqe.dest_mode =3D kvm_lapic_irq_dest_mode(entry->fields.dest_mode); =09irqe.trig_mode =3D entry->fields.trig_mode; =09irqe.delivery_mode =3D entry->fields.delivery_mode << 8; =09irqe.level =3D 1; diff --git a/arch/x86/kvm/irq_comm.c b/arch/x86/kvm/irq_comm.c index 8ecd48d31800..5f59e5ebdbed 100644 --- a/arch/x86/kvm/irq_comm.c +++ b/arch/x86/kvm/irq_comm.c @@ -52,8 +52,8 @@ int kvm_irq_delivery_to_apic(struct kvm *kvm, struct kvm_= lapic *src, =09unsigned long dest_vcpu_bitmap[BITS_TO_LONGS(KVM_MAX_VCPUS)]; =09unsigned int dest_vcpus =3D 0; =20 -=09if (irq->dest_mode =3D=3D 0 && irq->dest_id =3D=3D 0xff && -=09=09=09kvm_lowest_prio_delivery(irq)) { +=09if (irq->dest_mode =3D=3D APIC_DEST_PHYSICAL && +=09 irq->dest_id =3D=3D 0xff && kvm_lowest_prio_delivery(irq)) { =09=09printk(KERN_INFO "kvm: apic: phys broadcast and lowest prio\n"); =09=09irq->delivery_mode =3D APIC_DM_FIXED; =09} @@ -114,7 +114,8 @@ void kvm_set_msi_irq(struct kvm *kvm, struct kvm_kernel= _irq_routing_entry *e, =09=09irq->dest_id |=3D MSI_ADDR_EXT_DEST_ID(e->msi.address_hi); =09irq->vector =3D (e->msi.data & =09=09=09MSI_DATA_VECTOR_MASK) >> MSI_DATA_VECTOR_SHIFT; -=09irq->dest_mode =3D (1 << MSI_ADDR_DEST_MODE_SHIFT) & e->msi.address_lo; +=09irq->dest_mode =3D kvm_lapic_irq_dest_mode( +=09 (1 << MSI_ADDR_DEST_MODE_SHIFT) & e->msi.address_lo); =09irq->trig_mode =3D (1 << MSI_DATA_TRIGGER_SHIFT) & e->msi.data; =09irq->delivery_mode =3D e->msi.data & 0x700; =09irq->msi_redir_hint =3D ((e->msi.address_lo diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c index 3ed167e039e5..3b00d662dc14 100644 --- a/arch/x86/kvm/x86.c +++ b/arch/x86/kvm/x86.c @@ -7356,7 +7356,7 @@ static void kvm_pv_kick_cpu_op(struct kvm *kvm, unsig= ned long flags, int apicid) =09struct kvm_lapic_irq lapic_irq; =20 =09lapic_irq.shorthand =3D 0; -=09lapic_irq.dest_mode =3D 0; +=09lapic_irq.dest_mode =3D APIC_DEST_PHYSICAL; =09lapic_irq.level =3D 0; =09lapic_irq.dest_id =3D apicid; =09lapic_irq.msi_redir_hint =3D false; --=20 2.21.0