From patchwork Tue Sep 14 15:48:12 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Maxim Levitsky X-Patchwork-Id: 12494039 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=-16.1 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_CR_TRAILER,INCLUDES_PATCH,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS 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 AB16CC433F5 for ; Tue, 14 Sep 2021 15:48:45 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 8E97961157 for ; Tue, 14 Sep 2021 15:48:45 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S234843AbhINPuB (ORCPT ); Tue, 14 Sep 2021 11:50:01 -0400 Received: from us-smtp-delivery-124.mimecast.com ([170.10.133.124]:42185 "EHLO us-smtp-delivery-124.mimecast.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S234786AbhINPuA (ORCPT ); Tue, 14 Sep 2021 11:50:00 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1631634522; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=pEV05lOFEjMox5QCsgxD2AGwkvNu18w87kROINIyih0=; b=MV6dN07zzmCVRsuYOl6mj1PZnHDtRMRYgpn2vFBaNLsZnNCF2brEQBR8JVSp7z/gTzvduW C76nTe/5QNKdVoPgFn3lS0uRCXX5K4ErYZWX41StIBvnM9jmJ3PC+oFRktGWTxyXNp2kC8 98SLpsexdDtBMtcLjiQkRgrPE5W7O0I= Received: from mimecast-mx01.redhat.com (mimecast-mx01.redhat.com [209.132.183.4]) (Using TLS) by relay.mimecast.com with ESMTP id us-mta-578-xxUqKsjMPnyqaTqLuyC7eA-1; Tue, 14 Sep 2021 11:48:41 -0400 X-MC-Unique: xxUqKsjMPnyqaTqLuyC7eA-1 Received: from smtp.corp.redhat.com (int-mx06.intmail.prod.int.phx2.redhat.com [10.5.11.16]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx01.redhat.com (Postfix) with ESMTPS id 7446619253C2; Tue, 14 Sep 2021 15:48:39 +0000 (UTC) Received: from localhost.localdomain (unknown [10.35.206.50]) by smtp.corp.redhat.com (Postfix) with ESMTP id 09A665C1BB; Tue, 14 Sep 2021 15:48:34 +0000 (UTC) From: Maxim Levitsky To: kvm@vger.kernel.org Cc: Vitaly Kuznetsov , Paolo Bonzini , Borislav Petkov , Bandan Das , linux-kernel@vger.kernel.org (open list), Joerg Roedel , Ingo Molnar , Wei Huang , Sean Christopherson , linux-kselftest@vger.kernel.org (open list:KERNEL SELFTEST FRAMEWORK), Maxim Levitsky , "H. Peter Anvin" , Jim Mattson , Thomas Gleixner , x86@kernel.org (maintainer:X86 ARCHITECTURE (32-BIT AND 64-BIT)), Shuah Khan , Wanpeng Li Subject: [PATCH 01/14] KVM: x86: nSVM: restore int_vector in svm_clear_vintr Date: Tue, 14 Sep 2021 18:48:12 +0300 Message-Id: <20210914154825.104886-2-mlevitsk@redhat.com> In-Reply-To: <20210914154825.104886-1-mlevitsk@redhat.com> References: <20210914154825.104886-1-mlevitsk@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.79 on 10.5.11.16 Precedence: bulk List-ID: X-Mailing-List: kvm@vger.kernel.org In svm_clear_vintr we try to restore the virtual interrupt injection that might be pending, but we fail to restore the interrupt vector. Signed-off-by: Maxim Levitsky --- arch/x86/kvm/svm/svm.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/arch/x86/kvm/svm/svm.c b/arch/x86/kvm/svm/svm.c index 05e8d4d27969..b2e710a3fff6 100644 --- a/arch/x86/kvm/svm/svm.c +++ b/arch/x86/kvm/svm/svm.c @@ -1566,6 +1566,8 @@ static void svm_clear_vintr(struct vcpu_svm *svm) svm->vmcb->control.int_ctl |= svm->nested.ctl.int_ctl & V_IRQ_INJECTION_BITS_MASK; + + svm->vmcb->control.int_vector = svm->nested.ctl.int_vector; } vmcb_mark_dirty(svm->vmcb, VMCB_INTR);