From patchwork Wed May 13 09:45:15 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Greg Kroah-Hartman X-Patchwork-Id: 225943 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=-6.9 required=3.0 tests=DKIMWL_WL_HIGH, DKIM_SIGNED, DKIM_VALID, HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI, SIGNED_OFF_BY, SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT autolearn=ham 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 A83BDC2D0FA for ; Wed, 13 May 2020 10:01:28 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 7786E20575 for ; Wed, 13 May 2020 10:01:28 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1589364088; bh=CXVsfp0dJQu1Fcsy1N3InxY3gjc4AOdrPhido3R2SBo=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=c049C+pT4UmwNINUBYKJJIX8bV7+1PMRF/o/aUz8ai9OpU41a7jyy8431xx8useDA GzX7jK9db41lRSAGCtInrwn3VaqTIT6QlGzZmtYrNKmfiqQsuAW9q/CuHJTIi0GGmW nBAl8tPpRvxnymu7lB7K8rO3uJydLVeZcbNyKHrU= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1733014AbgEMKB1 (ORCPT ); Wed, 13 May 2020 06:01:27 -0400 Received: from mail.kernel.org ([198.145.29.99]:51216 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2387573AbgEMJuz (ORCPT ); Wed, 13 May 2020 05:50:55 -0400 Received: from localhost (83-86-89-107.cable.dynamic.v4.ziggo.nl [83.86.89.107]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id B4EF520575; Wed, 13 May 2020 09:50:54 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1589363455; bh=CXVsfp0dJQu1Fcsy1N3InxY3gjc4AOdrPhido3R2SBo=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=QLrtAgfnkQgpofosfkD6MFPfYU5PGpatJD3lOnTkgJ8cbfBMjA2LGnUsCM+4upI+L Agu+/CKfR3FKWVAQPYj8VjhI/+pXPE5AGNOhqO0KYPWLSDO9drRxMpWGZu+4Dzn1GI yMrRza9fSDLBl4oNuhhOnPTD8XjqBlTN9Jj5b9UU= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Alexander Graf , Suravee Suthikulpanit , Maxim Levitsky , Paolo Bonzini Subject: [PATCH 5.4 79/90] KVM: x86: Fixes posted interrupt check for IRQs delivery modes Date: Wed, 13 May 2020 11:45:15 +0200 Message-Id: <20200513094417.469987816@linuxfoundation.org> X-Mailer: git-send-email 2.26.2 In-Reply-To: <20200513094408.810028856@linuxfoundation.org> References: <20200513094408.810028856@linuxfoundation.org> User-Agent: quilt/0.66 MIME-Version: 1.0 Sender: stable-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: stable@vger.kernel.org From: Suravee Suthikulpanit commit 637543a8d61c6afe4e9be64bfb43c78701a83375 upstream. Current logic incorrectly uses the enum ioapic_irq_destination_types to check the posted interrupt destination types. However, the value was set using APIC_DM_XXX macros, which are left-shifted by 8 bits. Fixes by using the APIC_DM_FIXED and APIC_DM_LOWEST instead. Fixes: (fdcf75621375 'KVM: x86: Disable posted interrupts for non-standard IRQs delivery modes') Cc: Alexander Graf Signed-off-by: Suravee Suthikulpanit Message-Id: <1586239989-58305-1-git-send-email-suravee.suthikulpanit@amd.com> Reviewed-by: Maxim Levitsky Tested-by: Maxim Levitsky Signed-off-by: Paolo Bonzini Signed-off-by: Greg Kroah-Hartman --- arch/x86/include/asm/kvm_host.h | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) --- a/arch/x86/include/asm/kvm_host.h +++ b/arch/x86/include/asm/kvm_host.h @@ -1608,8 +1608,8 @@ void kvm_set_msi_irq(struct kvm *kvm, st static inline bool kvm_irq_is_postable(struct kvm_lapic_irq *irq) { /* We can only post Fixed and LowPrio IRQs */ - return (irq->delivery_mode == dest_Fixed || - irq->delivery_mode == dest_LowestPrio); + return (irq->delivery_mode == APIC_DM_FIXED || + irq->delivery_mode == APIC_DM_LOWEST); } static inline void kvm_arch_vcpu_blocking(struct kvm_vcpu *vcpu)