From patchwork Fri Nov 22 18:29:35 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Eric Auger X-Patchwork-Id: 1199598 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Authentication-Results: ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=nongnu.org (client-ip=209.51.188.17; helo=lists.gnu.org; envelope-from=qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org; receiver=) Authentication-Results: ozlabs.org; dmarc=fail (p=none dis=none) header.from=redhat.com Authentication-Results: ozlabs.org; dkim=fail reason="signature verification failed" (1024-bit key; unprotected) header.d=redhat.com header.i=@redhat.com header.b="XL8I0v30"; dkim-atps=neutral Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by ozlabs.org (Postfix) with ESMTPS id 47KQMm6nMLz9sPT for ; Sat, 23 Nov 2019 05:44:52 +1100 (AEDT) Received: from localhost ([::1]:54224 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1iYDvG-0006kW-Ev for incoming@patchwork.ozlabs.org; Fri, 22 Nov 2019 13:44:50 -0500 Received: from eggs.gnu.org ([2001:470:142:3::10]:39981) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1iYDiQ-0000jb-3Z for qemu-devel@nongnu.org; Fri, 22 Nov 2019 13:31:35 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1iYDiO-0000PT-I2 for qemu-devel@nongnu.org; Fri, 22 Nov 2019 13:31:33 -0500 Received: from us-smtp-1.mimecast.com ([207.211.31.81]:38882 helo=us-smtp-delivery-1.mimecast.com) by eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1iYDiO-0000PL-DN for qemu-devel@nongnu.org; Fri, 22 Nov 2019 13:31:32 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1574447492; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=JrkR9KYpXJDWqiPpiZFZOE335FpagScjc50Vgro92e4=; b=XL8I0v30sbPCta8qm3hVw9vooOlFW5pzcyIuDp9nydFnenqckXVdvvMVc0UnCmSRv/8/ai P70IsDus43/YBhZX+jHjbxMJFrNPBPiIuucoNjTk8CtGmetFLPWCsH3S4Wb9pT7dG+ZNfX OezCqejmrhWinj79CYPw7dvtdH6dRYk= 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-315-zAd0-MfUMdie55aYUXHa8Q-1; Fri, 22 Nov 2019 13:31:31 -0500 Received: from smtp.corp.redhat.com (int-mx02.intmail.prod.int.phx2.redhat.com [10.5.11.12]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx01.redhat.com (Postfix) with ESMTPS id 39A591005512; Fri, 22 Nov 2019 18:31:29 +0000 (UTC) Received: from laptop.redhat.com (ovpn-116-37.ams2.redhat.com [10.36.116.37]) by smtp.corp.redhat.com (Postfix) with ESMTP id C51926E712; Fri, 22 Nov 2019 18:31:25 +0000 (UTC) From: Eric Auger To: eric.auger.pro@gmail.com, eric.auger@redhat.com, qemu-devel@nongnu.org, qemu-arm@nongnu.org, peter.maydell@linaro.org, mst@redhat.com, armbru@redhat.com, jean-philippe.brucker@arm.com, bharatb.linux@gmail.com, yang.zhong@intel.com, dgilbert@redhat.com, quintela@redhat.com Subject: [PATCH for-5.0 v11 12/20] qapi: Introduce DEFINE_PROP_INTERVAL Date: Fri, 22 Nov 2019 19:29:35 +0100 Message-Id: <20191122182943.4656-13-eric.auger@redhat.com> In-Reply-To: <20191122182943.4656-1-eric.auger@redhat.com> References: <20191122182943.4656-1-eric.auger@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.79 on 10.5.11.12 X-MC-Unique: zAd0-MfUMdie55aYUXHa8Q-1 X-Mimecast-Spam-Score: 0 X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] [fuzzy] X-Received-From: 207.211.31.81 X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: kevin.tian@intel.com, peterx@redhat.com, tnowicki@marvell.com Errors-To: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org Sender: "Qemu-devel" Introduce a new property defining a labelled interval: ,,label. This will be used to encode reserved IOVA regions. The label is left undefined to ease reuse accross use cases. For instance, in virtio-iommu use case, reserved IOVA regions will be passed by the machine code to the virtio-iommu-pci device (an array of those). The label will match the virtio_iommu_probe_resv_mem subtype value: - VIRTIO_IOMMU_RESV_MEM_T_RESERVED (0) - VIRTIO_IOMMU_RESV_MEM_T_MSI (1) This is used to inform the virtio-iommu-pci device it should bypass the MSI region: 0xfee00000, 0xfeefffff, 1. Signed-off-by: Eric Auger --- hw/core/qdev-properties.c | 90 ++++++++++++++++++++++++++++++++++++ include/exec/memory.h | 6 +++ include/hw/qdev-properties.h | 3 ++ include/qemu/typedefs.h | 1 + 4 files changed, 100 insertions(+) diff --git a/hw/core/qdev-properties.c b/hw/core/qdev-properties.c index ac28890e5a..8d70f34e37 100644 --- a/hw/core/qdev-properties.c +++ b/hw/core/qdev-properties.c @@ -13,6 +13,7 @@ #include "qapi/visitor.h" #include "chardev/char.h" #include "qemu/uuid.h" +#include "qemu/cutils.h" void qdev_prop_set_after_realize(DeviceState *dev, const char *name, Error **errp) @@ -585,6 +586,95 @@ const PropertyInfo qdev_prop_macaddr = { .set = set_mac, }; +/* --- Labelled Interval --- */ + +/* + * accepted syntax versions: + * ,, + * where low/high addresses are uint64_t in hexa (feat. 0x prefix) + * and type is an unsigned integer + */ +static void get_interval(Object *obj, Visitor *v, const char *name, + void *opaque, Error **errp) +{ + DeviceState *dev = DEVICE(obj); + Property *prop = opaque; + Interval *interval = qdev_get_prop_ptr(dev, prop); + char buffer[64]; + char *p = buffer; + + snprintf(buffer, sizeof(buffer), "0x%"PRIx64",0x%"PRIx64",%d", + interval->low, interval->high, interval->type); + + visit_type_str(v, name, &p, errp); +} + +static void set_interval(Object *obj, Visitor *v, const char *name, + void *opaque, Error **errp) +{ + DeviceState *dev = DEVICE(obj); + Property *prop = opaque; + Interval *interval = qdev_get_prop_ptr(dev, prop); + Error *local_err = NULL; + unsigned int type; + gchar **fields; + uint64_t addr; + char *str; + int ret; + + if (dev->realized) { + qdev_prop_set_after_realize(dev, name, errp); + return; + } + + visit_type_str(v, name, &str, &local_err); + if (local_err) { + error_propagate(errp, local_err); + return; + } + + fields = g_strsplit(str, ",", 3); + + ret = qemu_strtou64(fields[0], NULL, 16, &addr); + if (!ret) { + interval->low = addr; + } else { + error_setg(errp, "Failed to decode interval low addr"); + error_append_hint(errp, + "should be an address in hexa with 0x prefix\n"); + goto out; + } + + ret = qemu_strtou64(fields[1], NULL, 16, &addr); + if (!ret) { + interval->high = addr; + } else { + error_setg(errp, "Failed to decode interval high addr"); + error_append_hint(errp, + "should be an address in hexa with 0x prefix\n"); + goto out; + } + + ret = qemu_strtoui(fields[2], NULL, 10, &type); + if (!ret) { + interval->type = type; + } else { + error_setg(errp, "Failed to decode interval type"); + error_append_hint(errp, "should be an unsigned int in decimal\n"); + } +out: + g_free(str); + g_strfreev(fields); + return; +} + +const PropertyInfo qdev_prop_interval = { + .name = "labelled_interval", + .description = "Labelled interval, example: 0xFEE00000,0xFEEFFFFF,0", + .get = get_interval, + .set = set_interval, +}; + /* --- on/off/auto --- */ const PropertyInfo qdev_prop_on_off_auto = { diff --git a/include/exec/memory.h b/include/exec/memory.h index e499dc215b..e238d1c352 100644 --- a/include/exec/memory.h +++ b/include/exec/memory.h @@ -57,6 +57,12 @@ struct MemoryRegionMmio { CPUWriteMemoryFunc *write[3]; }; +struct Interval { + hwaddr low; + hwaddr high; + unsigned int type; +}; + typedef struct IOMMUTLBEntry IOMMUTLBEntry; /* See address_space_translate: bit 0 is read, bit 1 is write. */ diff --git a/include/hw/qdev-properties.h b/include/hw/qdev-properties.h index c6a8cb5516..2ba7c8711b 100644 --- a/include/hw/qdev-properties.h +++ b/include/hw/qdev-properties.h @@ -20,6 +20,7 @@ extern const PropertyInfo qdev_prop_chr; extern const PropertyInfo qdev_prop_tpm; extern const PropertyInfo qdev_prop_ptr; extern const PropertyInfo qdev_prop_macaddr; +extern const PropertyInfo qdev_prop_interval; extern const PropertyInfo qdev_prop_on_off_auto; extern const PropertyInfo qdev_prop_losttickpolicy; extern const PropertyInfo qdev_prop_blockdev_on_error; @@ -202,6 +203,8 @@ extern const PropertyInfo qdev_prop_pcie_link_width; DEFINE_PROP(_n, _s, _f, qdev_prop_drive_iothread, BlockBackend *) #define DEFINE_PROP_MACADDR(_n, _s, _f) \ DEFINE_PROP(_n, _s, _f, qdev_prop_macaddr, MACAddr) +#define DEFINE_PROP_INTERVAL(_n, _s, _f) \ + DEFINE_PROP(_n, _s, _f, qdev_prop_interval, Interval) #define DEFINE_PROP_ON_OFF_AUTO(_n, _s, _f, _d) \ DEFINE_PROP_SIGNED(_n, _s, _f, _d, qdev_prop_on_off_auto, OnOffAuto) #define DEFINE_PROP_LOSTTICKPOLICY(_n, _s, _f, _d) \ diff --git a/include/qemu/typedefs.h b/include/qemu/typedefs.h index 375770a80f..a827c9a3fe 100644 --- a/include/qemu/typedefs.h +++ b/include/qemu/typedefs.h @@ -58,6 +58,7 @@ typedef struct ISABus ISABus; typedef struct ISADevice ISADevice; typedef struct IsaDma IsaDma; typedef struct MACAddr MACAddr; +typedef struct Interval Interval; typedef struct MachineClass MachineClass; typedef struct MachineState MachineState; typedef struct MemoryListener MemoryListener;