From patchwork Mon Mar 18 08:01:18 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: bibo mao X-Patchwork-Id: 13595086 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org 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 smtp.lore.kernel.org (Postfix) with ESMTPS id 2F6B5C54E58 for ; Mon, 18 Mar 2024 08:02:49 +0000 (UTC) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1rm7w9-0003gE-5T; Mon, 18 Mar 2024 04:01:37 -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 1rm7w6-0003fA-VO for qemu-devel@nongnu.org; Mon, 18 Mar 2024 04:01:34 -0400 Received: from mail.loongson.cn ([114.242.206.163]) by eggs.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1rm7w3-0001Su-8B for qemu-devel@nongnu.org; Mon, 18 Mar 2024 04:01:34 -0400 Received: from loongson.cn (unknown [10.2.5.213]) by gateway (Coremail) with SMTP id _____8AxuujV9PdlVkAaAA--.43118S3; Mon, 18 Mar 2024 16:01:25 +0800 (CST) Received: from localhost.localdomain (unknown [10.2.5.213]) by localhost.localdomain (Coremail) with SMTP id AQAAf8Bx8OTR9PdliWtcAA--.46553S4; Mon, 18 Mar 2024 16:01:23 +0800 (CST) From: Bibo Mao To: Song Gao Cc: qemu-devel@nongnu.org Subject: [PATCH 2/5] hw/loongarch: Refine fadt memory table for numa memory Date: Mon, 18 Mar 2024 16:01:18 +0800 Message-Id: <20240318080121.2836548-3-maobibo@loongson.cn> X-Mailer: git-send-email 2.39.3 In-Reply-To: <20240318080121.2836548-1-maobibo@loongson.cn> References: <20240318080121.2836548-1-maobibo@loongson.cn> MIME-Version: 1.0 X-CM-TRANSID: AQAAf8Bx8OTR9PdliWtcAA--.46553S4 X-CM-SenderInfo: xpdruxter6z05rqj20fqof0/ X-Coremail-Antispam: 1Uk129KBjDUn29KB7ZKAUJUUUUU529EdanIXcx71UUUUU7KY7 ZEXasCq-sGcSsGvfJ3UbIjqfuFe4nvWSU5nxnvy29KBjDU0xBIdaVrnUUvcSsGvfC2Kfnx nUUI43ZEXa7xR_UUUUUUUUU== 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, 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+qemu-devel=archiver.kernel.org@nongnu.org Sender: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org One LoongArch virt machine platform, there is limitation for memory map information. The minimum memory size is 256M and minimum memory size for numa node0 is 256M also. With qemu numa qtest, it is possible that memory size of numa node0 is 128M. Limitations for minimum memory size for both total memory and numa node0 is removed for fadt numa memory table creation. Signed-off-by: Bibo Mao --- hw/loongarch/virt.c | 47 ++++++++++++++++++++++++++++++++++++++++++--- 1 file changed, 44 insertions(+), 3 deletions(-) diff --git a/hw/loongarch/virt.c b/hw/loongarch/virt.c index efce112310..ae79b49774 100644 --- a/hw/loongarch/virt.c +++ b/hw/loongarch/virt.c @@ -343,6 +343,48 @@ static void fdt_add_memory_node(MachineState *ms, g_free(nodename); } +static void fdt_add_memory_nodes(MachineState *ms) +{ + hwaddr base, size, ram_size, gap; + int i, nb_numa_nodes, nodes; + NodeInfo *numa_info; + + ram_size = ms->ram_size; + base = VIRT_LOWMEM_BASE; + gap = VIRT_LOWMEM_SIZE; + nodes = nb_numa_nodes = ms->numa_state->num_nodes; + numa_info = ms->numa_state->nodes; + if (!nodes) { + nodes = 1; + } + + for (i = 0; i < nodes; i++) { + if (nb_numa_nodes) { + size = numa_info[i].node_mem; + } else { + size = ram_size; + } + + /* + * memory for the node splited into two part + * lowram: [base, +gap) + * highram: [VIRT_HIGHMEM_BASE, +(len - gap)) + */ + if (size >= gap) { + fdt_add_memory_node(ms, base, gap, i); + size -= gap; + base = VIRT_HIGHMEM_BASE; + gap = ram_size - VIRT_LOWMEM_SIZE; + } + + if (size) { + fdt_add_memory_node(ms, base, size, i); + base += size; + gap -= size; + } + } +} + static void virt_build_smbios(LoongArchMachineState *lams) { MachineState *ms = MACHINE(lams); @@ -864,9 +906,10 @@ static void loongarch_init(MachineState *machine) } fdt_add_cpu_nodes(lams); + fdt_add_memory_nodes(machine); + /* Node0 memory */ memmap_add_entry(VIRT_LOWMEM_BASE, VIRT_LOWMEM_SIZE, 1); - fdt_add_memory_node(machine, VIRT_LOWMEM_BASE, VIRT_LOWMEM_SIZE, 0); memory_region_init_alias(&lams->lowmem, NULL, "loongarch.node0.lowram", machine->ram, offset, VIRT_LOWMEM_SIZE); memory_region_add_subregion(address_space_mem, phyAddr, &lams->lowmem); @@ -880,7 +923,6 @@ static void loongarch_init(MachineState *machine) } phyAddr = VIRT_HIGHMEM_BASE; memmap_add_entry(phyAddr, highram_size, 1); - fdt_add_memory_node(machine, phyAddr, highram_size, 0); memory_region_init_alias(&lams->highmem, NULL, "loongarch.node0.highram", machine->ram, offset, highram_size); memory_region_add_subregion(address_space_mem, phyAddr, &lams->highmem); @@ -896,7 +938,6 @@ static void loongarch_init(MachineState *machine) offset, numa_info[i].node_mem); memory_region_add_subregion(address_space_mem, phyAddr, nodemem); memmap_add_entry(phyAddr, numa_info[i].node_mem, 1); - fdt_add_memory_node(machine, phyAddr, numa_info[i].node_mem, i); offset += numa_info[i].node_mem; phyAddr += numa_info[i].node_mem; }