From nobody Thu Nov 6 18:24:58 2025 Delivered-To: importer@patchew.org Received-SPF: pass (zoho.com: domain of gnu.org designates 208.118.235.17 as permitted sender) client-ip=208.118.235.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Authentication-Results: mx.zohomail.com; spf=pass (zoho.com: domain of gnu.org designates 208.118.235.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org Return-Path: Received: from lists.gnu.org (lists.gnu.org [208.118.235.17]) by mx.zohomail.com with SMTPS id 1542368242828427.80357281738225; Fri, 16 Nov 2018 03:37:22 -0800 (PST) Received: from localhost ([::1]:44285 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1gNcR7-0006Y3-Lw for importer@patchew.org; Fri, 16 Nov 2018 06:37:21 -0500 Received: from eggs.gnu.org ([2001:4830:134:3::10]:34628) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1gNbrs-0000cE-D2 for qemu-devel@nongnu.org; Fri, 16 Nov 2018 06:01:03 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1gNbrn-0001Ao-C2 for qemu-devel@nongnu.org; Fri, 16 Nov 2018 06:00:56 -0500 Received: from 10.mo173.mail-out.ovh.net ([46.105.74.148]:35616) by eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1gNbrm-0000co-Un for qemu-devel@nongnu.org; Fri, 16 Nov 2018 06:00:51 -0500 Received: from player734.ha.ovh.net (unknown [10.109.160.39]) by mo173.mail-out.ovh.net (Postfix) with ESMTP id 448A4E308E for ; Fri, 16 Nov 2018 12:00:12 +0100 (CET) Received: from kaod.org (lfbn-1-10605-110.w90-89.abo.wanadoo.fr [90.89.196.110]) (Authenticated sender: clg@kaod.org) by player734.ha.ovh.net (Postfix) with ESMTPSA id E32FC2800DF; Fri, 16 Nov 2018 12:00:06 +0100 (CET) From: =?UTF-8?q?C=C3=A9dric=20Le=20Goater?= To: David Gibson Date: Fri, 16 Nov 2018 11:57:20 +0100 Message-Id: <20181116105729.23240-28-clg@kaod.org> X-Mailer: git-send-email 2.17.2 In-Reply-To: <20181116105729.23240-1-clg@kaod.org> References: <20181116105729.23240-1-clg@kaod.org> MIME-Version: 1.0 X-Ovh-Tracer-Id: 11762276327526009830 X-VR-SPAMSTATE: OK X-VR-SPAMSCORE: -100 X-VR-SPAMCAUSE: gggruggvucftvghtrhhoucdtuddrgedtkedrleejgddvudcutefuodetggdotefrodftvfcurfhrohhfihhlvgemucfqggfjpdevjffgvefmvefgnecuuegrihhlohhuthemucehtddtnecusecvtfgvtghiphhivghnthhsucdlqddutddtmd Content-Transfer-Encoding: quoted-printable X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] X-Received-From: 46.105.74.148 Subject: [Qemu-devel] [PATCH v5 27/36] sysbus: add a sysbus_mmio_unmap() helper X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: qemu-ppc@nongnu.org, qemu-devel@nongnu.org, =?UTF-8?q?C=C3=A9dric=20Le=20Goater?= Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" Content-Type: text/plain; charset="utf-8" This will be used to remove the MMIO regions of the POWER9 XIVE interrupt controller when the sPAPR machine is reseted. Signed-off-by: C=C3=A9dric Le Goater --- include/hw/sysbus.h | 1 + hw/core/sysbus.c | 10 ++++++++++ 2 files changed, 11 insertions(+) diff --git a/include/hw/sysbus.h b/include/hw/sysbus.h index 0b59a3b8d605..bc641984b5da 100644 --- a/include/hw/sysbus.h +++ b/include/hw/sysbus.h @@ -92,6 +92,7 @@ qemu_irq sysbus_get_connected_irq(SysBusDevice *dev, int = n); void sysbus_mmio_map(SysBusDevice *dev, int n, hwaddr addr); void sysbus_mmio_map_overlap(SysBusDevice *dev, int n, hwaddr addr, int priority); +void sysbus_mmio_unmap(SysBusDevice *dev, int n); void sysbus_add_io(SysBusDevice *dev, hwaddr addr, MemoryRegion *mem); MemoryRegion *sysbus_address_space(SysBusDevice *dev); diff --git a/hw/core/sysbus.c b/hw/core/sysbus.c index 7ac36ad3e707..09f202167dcb 100644 --- a/hw/core/sysbus.c +++ b/hw/core/sysbus.c @@ -153,6 +153,16 @@ static void sysbus_mmio_map_common(SysBusDevice *dev, = int n, hwaddr addr, } } =20 +void sysbus_mmio_unmap(SysBusDevice *dev, int n) +{ + assert(n >=3D 0 && n < dev->num_mmio); + + if (dev->mmio[n].addr !=3D (hwaddr)-1) { + memory_region_del_subregion(get_system_memory(), dev->mmio[n].memo= ry); + dev->mmio[n].addr =3D (hwaddr)-1; + } +} + void sysbus_mmio_map(SysBusDevice *dev, int n, hwaddr addr) { sysbus_mmio_map_common(dev, n, addr, false, 0); --=20 2.17.2