From patchwork Thu Dec 21 08:06:10 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Song Gao X-Patchwork-Id: 1878895 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@legolas.ozlabs.org Authentication-Results: legolas.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=patchwork.ozlabs.org) Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) (using TLSv1.2 with cipher ECDHE-ECDSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by legolas.ozlabs.org (Postfix) with ESMTPS id 4SwjzJ2mgRz1ypX for ; Thu, 21 Dec 2023 19:20:12 +1100 (AEDT) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1rGEHD-0005VY-GR; Thu, 21 Dec 2023 03:19:31 -0500 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 1rGEGy-0005Su-E8 for qemu-devel@nongnu.org; Thu, 21 Dec 2023 03:19:17 -0500 Received: from mail.loongson.cn ([114.242.206.163]) by eggs.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1rGEGv-0007W5-FL for qemu-devel@nongnu.org; Thu, 21 Dec 2023 03:19:16 -0500 Received: from loongson.cn (unknown [10.2.5.185]) by gateway (Coremail) with SMTP id _____8CxO+n79INlH1wDAA--.17090S3; Thu, 21 Dec 2023 16:19:07 +0800 (CST) Received: from localhost.localdomain (unknown [10.2.5.185]) by localhost.localdomain (Coremail) with SMTP id AQAAf8BxG+T49INltGsDAA--.18043S3; Thu, 21 Dec 2023 16:19:06 +0800 (CST) From: Song Gao To: qemu-devel@nongnu.org Cc: stefanha@redhat.com, peter.maydell@linaro.org, richard.henderson@linaro.org, Bibo Mao Subject: [PULL 1/2] hw/loongarch/virt: Align high memory base address with super page size Date: Thu, 21 Dec 2023 16:06:10 +0800 Message-Id: <20231221080611.2960977-2-gaosong@loongson.cn> X-Mailer: git-send-email 2.39.1 In-Reply-To: <20231221080611.2960977-1-gaosong@loongson.cn> References: <20231221080611.2960977-1-gaosong@loongson.cn> MIME-Version: 1.0 X-CM-TRANSID: AQAAf8BxG+T49INltGsDAA--.18043S3 X-CM-SenderInfo: 5jdr20tqj6z05rqj20fqof0/ X-Coremail-Antispam: 1Uk129KBjDUn29KB7ZKAUJUUUUU529EdanIXcx71UUUUU7KY7 ZEXasCq-sGcSsGvfJ3UbIjqfuFe4nvWSU5nxnvy29KBjDU0xBIdaVrnUUvcSsGvfC2Kfnx nUUI43ZEXa7xR_UUUUUUUUU== Received-SPF: pass client-ip=114.242.206.163; envelope-from=gaosong@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, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 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+incoming=patchwork.ozlabs.org@nongnu.org Sender: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org From: Bibo Mao With LoongArch virt machine, there is low memory space with region 0--0x10000000, and high memory space with started from 0x90000000. High memory space is aligned with 256M, it will be better if it is aligned with 1G, which is super page aligned for 4K page size. Currently linux kernel and uefi bios has no limitation with high memory base address, it is ok to set high memory base address with 0x80000000. Signed-off-by: Bibo Mao Reviewed-by: Song Gao Message-Id: <20231127040231.4123715-1-maobibo@loongson.cn> Signed-off-by: Song Gao --- include/hw/loongarch/virt.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/include/hw/loongarch/virt.h b/include/hw/loongarch/virt.h index 674f4655e0..db0831b471 100644 --- a/include/hw/loongarch/virt.h +++ b/include/hw/loongarch/virt.h @@ -25,7 +25,7 @@ #define VIRT_LOWMEM_BASE 0 #define VIRT_LOWMEM_SIZE 0x10000000 -#define VIRT_HIGHMEM_BASE 0x90000000 +#define VIRT_HIGHMEM_BASE 0x80000000 #define VIRT_GED_EVT_ADDR 0x100e0000 #define VIRT_GED_MEM_ADDR (VIRT_GED_EVT_ADDR + ACPI_GED_EVT_SEL_LEN) #define VIRT_GED_REG_ADDR (VIRT_GED_MEM_ADDR + MEMORY_HOTPLUG_IO_LEN)