From nobody Sun Sep 28 17:12:47 2025 Delivered-To: importer@patchew.org Authentication-Results: mx.zohomail.com; spf=pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org Return-Path: Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) by mx.zohomail.com with SMTPS id 1757920974474294.59837928497745; Mon, 15 Sep 2025 00:22:54 -0700 (PDT) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1uy3Va-0002Ib-Ol; Mon, 15 Sep 2025 03:20:18 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1uy3VR-0002Fh-Ha for qemu-devel@nongnu.org; Mon, 15 Sep 2025 03:20:10 -0400 Received: from mail.loongson.cn ([114.242.206.163]) by eggs.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1uy3VD-0000Kh-Rp for qemu-devel@nongnu.org; Mon, 15 Sep 2025 03:20:07 -0400 Received: from loongson.cn (unknown [10.2.5.213]) by gateway (Coremail) with SMTP id _____8CxqdEVvsdo_GwKAA--.22385S3; Mon, 15 Sep 2025 15:19:49 +0800 (CST) Received: from localhost.localdomain (unknown [10.2.5.213]) by front1 (Coremail) with SMTP id qMiowJAxVOQSvsdoXteWAA--.24724S10; Mon, 15 Sep 2025 15:19:49 +0800 (CST) From: Bibo Mao To: Song Gao Cc: Jiaxun Yang , qemu-devel@nongnu.org Subject: [PATCH 8/8] hw/loongarch/virt: Add property highmem-mmio-size with virt machine Date: Mon, 15 Sep 2025 15:19:46 +0800 Message-Id: <20250915071946.315171-9-maobibo@loongson.cn> X-Mailer: git-send-email 2.39.3 In-Reply-To: <20250915071946.315171-1-maobibo@loongson.cn> References: <20250915071946.315171-1-maobibo@loongson.cn> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-CM-TRANSID: qMiowJAxVOQSvsdoXteWAA--.24724S10 X-CM-SenderInfo: xpdruxter6z05rqj20fqof0/ X-Coremail-Antispam: 1Uk129KBjDUn29KB7ZKAUJUUUUU529EdanIXcx71UUUUU7KY7 ZEXasCq-sGcSsGvfJ3UbIjqfuFe4nvWSU5nxnvy29KBjDU0xBIdaVrnUUvcSsGvfC2Kfnx nUUI43ZEXa7xR_UUUUUUUUU== Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=114.242.206.163; envelope-from=maobibo@loongson.cn; helo=mail.loongson.cn X-Spam_score_int: -18 X-Spam_score: -1.9 X-Spam_bar: - X-Spam_report: (-1.9 / 5.0 requ) BAYES_00=-1.9, RCVD_IN_VALIDITY_RPBL_BLOCKED=0.001, RCVD_IN_VALIDITY_SAFE_BLOCKED=0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZM-MESSAGEID: 1757920975271116600 Content-Type: text/plain; charset="utf-8" The default high mmio size of GPEX PCIE host controller is 64G bytes on virt machine. It may meet requirements with some cards, here adds property highmem-mmio-size to set high mmio size. Signed-off-by: Bibo Mao --- hw/loongarch/virt.c | 45 +++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 45 insertions(+) diff --git a/hw/loongarch/virt.c b/hw/loongarch/virt.c index 73c0494422..dc7de2f927 100644 --- a/hw/loongarch/virt.c +++ b/hw/loongarch/virt.c @@ -7,6 +7,7 @@ #include "qemu/osdep.h" #include "qemu/units.h" #include "qemu/datadir.h" +#include "qemu/cutils.h" #include "qapi/error.h" #include "exec/target_page.h" #include "hw/boards.h" @@ -82,6 +83,43 @@ static void virt_set_highmem_mmio(Object *obj, bool valu= e, Error **errp) lvms->highmem_mmio =3D value; } =20 +static void virt_get_highmem_mmio_size(Object *obj, Visitor *v, + const char *name, void *opaque, + Error **errp) +{ + LoongArchVirtMachineState *lvms =3D LOONGARCH_VIRT_MACHINE(obj); + uint64_t size =3D lvms->gpex.mmio64.size; + + visit_type_size(v, name, &size, errp); +} + +static void virt_set_highmem_mmio_size(Object *obj, Visitor *v, + const char *name, void *opaque, + Error **errp) +{ + LoongArchVirtMachineState *lvms =3D LOONGARCH_VIRT_MACHINE(obj); + uint64_t size; + + if (!visit_type_size(v, name, &size, errp)) { + return; + } + + if (!is_power_of_2(size)) { + error_setg(errp, "highmem-mmio-size is not a power of 2"); + return; + } + + if (size < DEFAULT_HIGH_PCIE_MMIO_SIZE) { + char *sz =3D size_to_str(DEFAULT_HIGH_PCIE_MMIO_SIZE); + error_setg(errp, "highmem-mmio-size cannot be set to a lower value= " + "than the default (%s)", sz); + g_free(sz); + return; + } + + lvms->gpex.mmio64.size =3D size; +} + static PFlashCFI01 *virt_flash_create1(LoongArchVirtMachineState *lvms, const char *name, const char *alias_prop_name) @@ -1341,6 +1379,13 @@ static void virt_class_init(ObjectClass *oc, const v= oid *data) object_class_property_set_description(oc, "highmem-mmio", "Set on/off to enable/disable hi= gh " "memory region for PCI MMIO"); + object_class_property_add(oc, "highmem-mmio-size", "size", + virt_get_highmem_mmio_size, + virt_set_highmem_mmio_size, + NULL, NULL); + object_class_property_set_description(oc, "highmem-mmio-size", + "Set the high memory region size= " + "for PCI MMIO"); } =20 static const TypeInfo virt_machine_types[] =3D { --=20 2.39.3