Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751516AbaK0TFy (ORCPT ); Thu, 27 Nov 2014 14:05:54 -0500 Received: from mx1.redhat.com ([209.132.183.28]:44627 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750888AbaK0TEC (ORCPT ); Thu, 27 Nov 2014 14:04:02 -0500 From: =?UTF-8?q?Radim=20Kr=C4=8Dm=C3=A1=C5=99?= To: linux-kernel@vger.kernel.org Cc: kvm@vger.kernel.org, Paolo Bonzini , Gleb Natapov , Nadav Amit Subject: [PATCH 1/4] KVM: x86: deliver phys lowest-prio Date: Thu, 27 Nov 2014 20:03:11 +0100 Message-Id: <1417114994-25235-2-git-send-email-rkrcmar@redhat.com> In-Reply-To: <1417114994-25235-1-git-send-email-rkrcmar@redhat.com> References: <1417114994-25235-1-git-send-email-rkrcmar@redhat.com> MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Physical mode can't address more than one APIC, but lowest-prio is allowed, so we just reuse our paths. SDM 10.6.2.1 Physical Destination: Also, for any non-broadcast IPI or I/O subsystem initiated interrupt with lowest priority delivery mode, software must ensure that APICs defined in the interrupt address are present and enabled to receive interrupts. We could warn on top of that. Signed-off-by: Radim Krčmář --- arch/x86/kvm/lapic.c | 2 -- 1 file changed, 2 deletions(-) diff --git a/arch/x86/kvm/lapic.c b/arch/x86/kvm/lapic.c index e0e5642..e8ad09d 100644 --- a/arch/x86/kvm/lapic.c +++ b/arch/x86/kvm/lapic.c @@ -691,8 +691,6 @@ bool kvm_irq_delivery_to_apic_fast(struct kvm *kvm, struct kvm_lapic *src, goto out; if (irq->dest_mode == 0) { /* physical mode */ - if (irq->delivery_mode == APIC_DM_LOWEST) - goto out; dst = &map->phys_map[irq->dest_id & 0xff]; } else { u32 mda = irq->dest_id << (32 - map->ldr_bits); -- 2.1.0 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/