From patchwork Thu Apr 5 17:07:21 2012 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Alex Williamson X-Patchwork-Id: 151063 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Received: from lists.gnu.org (lists.gnu.org [208.118.235.17]) (using TLSv1 with cipher AES256-SHA (256/256 bits)) (Client did not present a certificate) by ozlabs.org (Postfix) with ESMTPS id C494CB7062 for ; Fri, 6 Apr 2012 14:27:15 +1000 (EST) Received: from localhost ([::1]:52898 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1SFqAZ-00057A-RJ for incoming@patchwork.ozlabs.org; Thu, 05 Apr 2012 13:08:23 -0400 Received: from eggs.gnu.org ([208.118.235.92]:53962) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1SFq9w-0003dF-3o for qemu-devel@nongnu.org; Thu, 05 Apr 2012 13:07:53 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1SFq9o-00030x-St for qemu-devel@nongnu.org; Thu, 05 Apr 2012 13:07:42 -0400 Received: from mx1.redhat.com ([209.132.183.28]:16374) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1SFq9o-0002yQ-Ky for qemu-devel@nongnu.org; Thu, 05 Apr 2012 13:07:36 -0400 Received: from int-mx01.intmail.prod.int.phx2.redhat.com (int-mx01.intmail.prod.int.phx2.redhat.com [10.5.11.11]) by mx1.redhat.com (8.14.4/8.14.4) with ESMTP id q35H7MDb010799 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=OK); Thu, 5 Apr 2012 13:07:22 -0400 Received: from bling.home (ovpn-113-138.phx2.redhat.com [10.3.113.138]) by int-mx01.intmail.prod.int.phx2.redhat.com (8.13.8/8.13.8) with ESMTP id q35H7LdQ009899; Thu, 5 Apr 2012 13:07:22 -0400 From: Alex Williamson To: qemu-devel@nongnu.org, mst@redhat.com Date: Thu, 05 Apr 2012 11:07:21 -0600 Message-ID: <20120405170721.14105.59951.stgit@bling.home> In-Reply-To: <20120405170331.14105.52652.stgit@bling.home> References: <20120405170331.14105.52652.stgit@bling.home> User-Agent: StGIT/0.14.3 MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.67 on 10.5.11.11 X-detected-operating-system: by eggs.gnu.org: Genre and OS details not recognized. X-Received-From: 209.132.183.28 Cc: aliguori@us.ibm.com, gleb@redhat.com, jbaron@redhat.com, yamahata@valinux.co.jp, alex.williamson@redhat.com, kraxel@redhat.com, pbonzini@redhat.com, imammedo@redhat.com, aurelien@aurel32.net Subject: [Qemu-devel] [PATCH v2 3/5] acpi_piix4: Remove PCI_RMV_BASE write code X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.14 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org Sender: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org Clarify this register as read-only and remove write code. No change in existing behavior. Signed-off-by: Alex Williamson --- docs/specs/acpi_pci_hotplug.txt | 2 +- hw/acpi_piix4.c | 6 ------ 2 files changed, 1 insertions(+), 7 deletions(-) diff --git a/docs/specs/acpi_pci_hotplug.txt b/docs/specs/acpi_pci_hotplug.txt index 1e2c8a2..1883d63 100644 --- a/docs/specs/acpi_pci_hotplug.txt +++ b/docs/specs/acpi_pci_hotplug.txt @@ -34,4 +34,4 @@ PCI removability status (IO port 0xae0c-0xae0f, 4-byte access): ----------------------------------------------- Used by ACPI BIOS _RMV method to indicate removability status to OS. One -bit per slot. +bit per slot. Read-only diff --git a/hw/acpi_piix4.c b/hw/acpi_piix4.c index 0e7af51..5d3b0ba 100644 --- a/hw/acpi_piix4.c +++ b/hw/acpi_piix4.c @@ -531,11 +531,6 @@ static uint32_t pcirmv_read(void *opaque, uint32_t addr) return s->pci0_hotplug_enable; } -static void pcirmv_write(void *opaque, uint32_t addr, uint32_t val) -{ - return; -} - static int piix4_device_hotplug(DeviceState *qdev, PCIDevice *dev, PCIHotplugState state); @@ -552,7 +547,6 @@ static void piix4_acpi_system_hot_add_init(PCIBus *bus, PIIX4PMState *s) register_ioport_write(PCI_EJ_BASE, 4, 4, pciej_write, s); register_ioport_read(PCI_EJ_BASE, 4, 4, pciej_read, s); - register_ioport_write(PCI_RMV_BASE, 4, 4, pcirmv_write, s); register_ioport_read(PCI_RMV_BASE, 4, 4, pcirmv_read, s); pci_bus_hotplug(bus, piix4_device_hotplug, &s->dev.qdev);