From nobody Mon Nov 25 09:49:09 2024 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 1716428923142405.08013795368447; Wed, 22 May 2024 18:48:43 -0700 (PDT) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1s9xXg-0001io-Fs; Wed, 22 May 2024 21:46:52 -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 1s9xXd-0001gE-FZ for qemu-devel@nongnu.org; Wed, 22 May 2024 21:46:49 -0400 Received: from mail.loongson.cn ([114.242.206.163]) by eggs.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1s9xXY-000138-Dm for qemu-devel@nongnu.org; Wed, 22 May 2024 21:46:49 -0400 Received: from loongson.cn (unknown [10.2.5.185]) by gateway (Coremail) with SMTP id _____8Bx364BoE5mqd8CAA--.2605S3; 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--.17472S8; 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 06/10] hw/loongarch: Refine fwcfg memory map Date: Thu, 23 May 2024 09:46:33 +0800 Message-Id: <20240523014637.614872-7-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 Content-Transfer-Encoding: quoted-printable X-CM-TRANSID: AQAAf8AxDMf9n05mSDMGAA--.17472S8 X-CM-SenderInfo: 5jdr20tqj6z05rqj20fqof0/ 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=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+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZM-MESSAGEID: 1716428925233100005 Content-Type: text/plain; charset="utf-8" From: Bibo Mao Memory map table for fwcfg is used for UEFI BIOS, UEFI BIOS uses the first entry from fwcfg memory map as the first memory HOB, the second memory HOB will be used if the first memory HOB is used up. Memory map table for fwcfg does not care about numa node, however in generic the first memory HOB is part of numa node0, so that runtime memory of UEFI which is allocated from the first memory HOB is located at numa node0. Signed-off-by: Bibo Mao Reviewed-by: Song Gao Message-Id: <20240515093927.3453674-4-maobibo@loongson.cn> Signed-off-by: Song Gao --- hw/loongarch/virt.c | 60 ++++++++++++++++++++++++++++++++++++++++++--- 1 file changed, 57 insertions(+), 3 deletions(-) diff --git a/hw/loongarch/virt.c b/hw/loongarch/virt.c index 850729202f..449050cba5 100644 --- a/hw/loongarch/virt.c +++ b/hw/loongarch/virt.c @@ -918,6 +918,62 @@ static const MemoryRegionOps virt_iocsr_misc_ops =3D { }, }; =20 +static void fw_cfg_add_memory(MachineState *ms) +{ + hwaddr base, size, ram_size, gap; + int nb_numa_nodes, nodes; + NodeInfo *numa_info; + + ram_size =3D ms->ram_size; + base =3D VIRT_LOWMEM_BASE; + gap =3D VIRT_LOWMEM_SIZE; + nodes =3D nb_numa_nodes =3D ms->numa_state->num_nodes; + numa_info =3D ms->numa_state->nodes; + if (!nodes) { + nodes =3D 1; + } + + /* add fw_cfg memory map of node0 */ + if (nb_numa_nodes) { + size =3D numa_info[0].node_mem; + } else { + size =3D ram_size; + } + + if (size >=3D gap) { + memmap_add_entry(base, gap, 1); + size -=3D gap; + base =3D VIRT_HIGHMEM_BASE; + gap =3D ram_size - VIRT_LOWMEM_SIZE; + } + + if (size) { + memmap_add_entry(base, size, 1); + base +=3D size; + } + + if (nodes < 2) { + return; + } + + /* add fw_cfg memory map of other nodes */ + size =3D ram_size - numa_info[0].node_mem; + gap =3D VIRT_LOWMEM_BASE + VIRT_LOWMEM_SIZE; + if (base < gap && (base + size) > gap) { + /* + * memory map for the maining nodes splited into two part + * lowram: [base, +(gap - base)) + * highram: [VIRT_HIGHMEM_BASE, +(size - (gap - base))) + */ + memmap_add_entry(base, gap - base, 1); + size -=3D gap - base; + base =3D VIRT_HIGHMEM_BASE; + } + + if (size) + memmap_add_entry(base, size, 1); +} + static void virt_init(MachineState *machine) { LoongArchCPU *lacpu; @@ -964,9 +1020,9 @@ static void virt_init(MachineState *machine) } fdt_add_cpu_nodes(lvms); fdt_add_memory_nodes(machine); + fw_cfg_add_memory(machine); =20 /* Node0 memory */ - memmap_add_entry(VIRT_LOWMEM_BASE, VIRT_LOWMEM_SIZE, 1); 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); @@ -979,7 +1035,6 @@ static void virt_init(MachineState *machine) highram_size =3D ram_size - VIRT_LOWMEM_SIZE; } phyAddr =3D VIRT_HIGHMEM_BASE; - memmap_add_entry(phyAddr, highram_size, 1); memory_region_init_alias(&lvms->highmem, NULL, "loongarch.node0.highra= m", machine->ram, offset, highram_size); memory_region_add_subregion(address_space_mem, phyAddr, &lvms->highmem= ); @@ -994,7 +1049,6 @@ static void virt_init(MachineState *machine) memory_region_init_alias(nodemem, NULL, ramName, machine->ram, 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); offset +=3D numa_info[i].node_mem; phyAddr +=3D numa_info[i].node_mem; } --=20 2.34.1