From patchwork Thu May 23 01:46:32 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: gaosong X-Patchwork-Id: 13671206 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 2CDE9C25B78 for ; Thu, 23 May 2024 01:47:45 +0000 (UTC) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1s9xXd-0001gj-TI; Wed, 22 May 2024 21:46:49 -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 1s9xXc-0001fH-7C for qemu-devel@nongnu.org; Wed, 22 May 2024 21:46:48 -0400 Received: from mail.loongson.cn ([114.242.206.163]) by eggs.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1s9xXY-000135-3J for qemu-devel@nongnu.org; Wed, 22 May 2024 21:46:47 -0400 Received: from loongson.cn (unknown [10.2.5.185]) by gateway (Coremail) with SMTP id _____8BxWeoBoE5mp98CAA--.2708S3; Thu, 23 May 2024 09:46:41 +0800 (CST) Received: from localhost.localdomain (unknown [10.2.5.185]) by localhost.localdomain (Coremail) with SMTP id AQAAf8AxDMf9n05mSDMGAA--.17472S7; Thu, 23 May 2024 09:46:41 +0800 (CST) From: Song Gao To: qemu-devel@nongnu.org Cc: richard.henderson@linaro.org, Bibo Mao Subject: [PULL 05/10] hw/loongarch: Refine fadt memory table for numa memory Date: Thu, 23 May 2024 09:46:32 +0800 Message-Id: <20240523014637.614872-6-gaosong@loongson.cn> X-Mailer: git-send-email 2.39.1 In-Reply-To: <20240523014637.614872-1-gaosong@loongson.cn> References: <20240523014637.614872-1-gaosong@loongson.cn> MIME-Version: 1.0 X-CM-TRANSID: AQAAf8AxDMf9n05mSDMGAA--.17472S7 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 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 From: Bibo Mao 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 Reviewed-by: Song Gao Message-Id: <20240515093927.3453674-3-maobibo@loongson.cn> Signed-off-by: Song Gao --- hw/loongarch/virt.c | 46 ++++++++++++++++++++++++++++++++++++++++++--- 1 file changed, 43 insertions(+), 3 deletions(-) diff --git a/hw/loongarch/virt.c b/hw/loongarch/virt.c index 95f9ed5cae..850729202f 100644 --- a/hw/loongarch/virt.c +++ b/hw/loongarch/virt.c @@ -474,6 +474,48 @@ 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(LoongArchVirtMachineState *lvms) { MachineState *ms = MACHINE(lvms); @@ -921,10 +963,10 @@ static void virt_init(MachineState *machine) lacpu->phy_id = machine->possible_cpus->cpus[i].arch_id; } fdt_add_cpu_nodes(lvms); + 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(&lvms->lowmem, NULL, "loongarch.node0.lowram", machine->ram, offset, VIRT_LOWMEM_SIZE); memory_region_add_subregion(address_space_mem, phyAddr, &lvms->lowmem); @@ -938,7 +980,6 @@ static void virt_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(&lvms->highmem, NULL, "loongarch.node0.highram", machine->ram, offset, highram_size); memory_region_add_subregion(address_space_mem, phyAddr, &lvms->highmem); @@ -954,7 +995,6 @@ static void virt_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; }