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GET /api/patches/2225498/?format=api
{ "id": 2225498, "url": "http://patchwork.ozlabs.org/api/patches/2225498/?format=api", "web_url": "http://patchwork.ozlabs.org/project/qemu-devel/patch/20260421053140.752059-4-joel@jms.id.au/", "project": { "id": 14, "url": "http://patchwork.ozlabs.org/api/projects/14/?format=api", "name": "QEMU Development", "link_name": "qemu-devel", "list_id": "qemu-devel.nongnu.org", "list_email": "qemu-devel@nongnu.org", "web_url": "", "scm_url": "", "webscm_url": "", "list_archive_url": "", "list_archive_url_format": "", "commit_url_format": "" }, "msgid": "<20260421053140.752059-4-joel@jms.id.au>", "list_archive_url": null, "date": "2026-04-21T05:31:28", "name": "[v3,03/13] hw/riscv/boot: Account for discontiguous memory when loading firmware", "commit_ref": null, "pull_url": null, "state": "new", "archived": false, "hash": "3e4e9175e581ad1035e7977420d1825e73b21ca1", "submitter": { "id": 48628, "url": "http://patchwork.ozlabs.org/api/people/48628/?format=api", "name": "Joel Stanley", "email": "joel@jms.id.au" }, "delegate": null, "mbox": "http://patchwork.ozlabs.org/project/qemu-devel/patch/20260421053140.752059-4-joel@jms.id.au/mbox/", "series": [ { "id": 500733, "url": "http://patchwork.ozlabs.org/api/series/500733/?format=api", "web_url": "http://patchwork.ozlabs.org/project/qemu-devel/list/?series=500733", "date": "2026-04-21T05:31:26", "name": "hw/riscv: Add the Tenstorrent Atlantis machine", "version": 3, "mbox": "http://patchwork.ozlabs.org/series/500733/mbox/" } ], "comments": "http://patchwork.ozlabs.org/api/patches/2225498/comments/", "check": "pending", "checks": "http://patchwork.ozlabs.org/api/patches/2225498/checks/", "tags": {}, "related": [], "headers": { "Return-Path": "<qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org>", "X-Original-To": "incoming@patchwork.ozlabs.org", "Delivered-To": "patchwork-incoming@legolas.ozlabs.org", "Authentication-Results": [ "legolas.ozlabs.org;\n\tdkim=fail reason=\"signature verification failed\" (2048-bit key;\n unprotected) header.d=gmail.com header.i=@gmail.com header.a=rsa-sha256\n header.s=20251104 header.b=DSeSo6sp;\n\tdkim-atps=neutral", "legolas.ozlabs.org;\n spf=pass (sender SPF authorized) smtp.mailfrom=nongnu.org\n (client-ip=209.51.188.17; helo=lists1p.gnu.org;\n envelope-from=qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org;\n receiver=patchwork.ozlabs.org)" ], "Received": [ "from lists1p.gnu.org (lists1p.gnu.org [209.51.188.17])\n\t(using TLSv1.2 with cipher ECDHE-ECDSA-AES256-GCM-SHA384 (256/256 bits))\n\t(No client certificate requested)\n\tby legolas.ozlabs.org (Postfix) with ESMTPS id 4g09yF4cZnz1yJy\n\tfor <incoming@patchwork.ozlabs.org>; Tue, 21 Apr 2026 15:33:56 +1000 (AEST)", "from localhost ([::1] helo=lists1p.gnu.org)\n\tby lists1p.gnu.org with esmtp (Exim 4.90_1)\n\t(envelope-from <qemu-devel-bounces@nongnu.org>)\n\tid 1wF3jf-0000Rr-8b; Tue, 21 Apr 2026 01:33:25 -0400", "from eggs.gnu.org ([2001:470:142:3::10])\n by lists1p.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256)\n (Exim 4.90_1) (envelope-from <joel.stan@gmail.com>)\n id 1wF3jd-0000RC-LI\n for qemu-devel@nongnu.org; Tue, 21 Apr 2026 01:33:21 -0400", "from mail-pj1-x1032.google.com ([2607:f8b0:4864:20::1032])\n by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128)\n (Exim 4.90_1) (envelope-from <joel.stan@gmail.com>)\n id 1wF3jb-0004Ps-BR\n for qemu-devel@nongnu.org; Tue, 21 Apr 2026 01:33:21 -0400", "by mail-pj1-x1032.google.com with SMTP id\n 98e67ed59e1d1-35fb7c1a455so1532739a91.3\n for <qemu-devel@nongnu.org>; Mon, 20 Apr 2026 22:33:18 -0700 (PDT)", "from donnager-debian.. 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"AeBDiesfzDHHO3Jw5ToSmBFeatwK1ub0BEVAAJ6RQCyOAjH3MpDoIA9L/WACA6urya7\n r1HCzEJGX34+P1NzFGXLn8uqRvhj6uefWqyV6h3qhidVakvjfKF4e3bN1DJAk6cRfqS8F8ZkFNJ\n 1BkgYe4Iy2SeSBlxbZzeB3Wk9ZoEtvftRdbC7G/NUF+pHEvYEdpQK+WVf35FVteXexh5UElTG0j\n 11PKqWFutVd0KJNCtsCxj7hZp7hBmxWdnNPlX6prePIrecX7BlHYPQYvpPdH8k3UM5wJGo/UN/H\n 0B0O4hmKD+EWlS2HRIIGvK8dka13gwxK1+OKa+IgZyyy2AhoXcCi57KvOK9ZkcWUnK0z1d/ghFG\n VpKQg4mge48+9hTo+/bPAilTNS8j4yhT3otB8N1Gbzw6w8AQ7EqyJ8IdIV4Q4CpK/d9JiJMoEx9\n OBZCtlki0EYYXQTQHj3vMounBm74dStMsxSbNjXdLgjfrGnOiu648bf0xFfujXFtwUF3rK1fZ2E\n HZZWzN2SK0xlk2DjKFrWdTsesXdwg32h+r2tw==", "X-Received": "by 2002:a17:90b:55cc:b0:35e:30bc:804d with SMTP id\n 98e67ed59e1d1-3614048adcdmr16132017a91.15.1776749596982;\n Mon, 20 Apr 2026 22:33:16 -0700 (PDT)", "From": "Joel Stanley <joel@jms.id.au>", "To": "Alistair Francis <alistair.francis@wdc.com>,\n Daniel Henrique Barboza <daniel.barboza@oss.qualcomm.com>", "Cc": "Nicholas Piggin <npiggin@gmail.com>, Michael Ellerman <mpe@kernel.org>,\n Joel Stanley <jms@oss.tenstorrent.com>,\n Anirudh Srinivasan <asrinivasan@oss.tenstorrent.com>,\n qemu-riscv@nongnu.org, qemu-devel@nongnu.org", "Subject": "[PATCH v3 03/13] hw/riscv/boot: Account for discontiguous memory when\n loading firmware", "Date": "Tue, 21 Apr 2026 15:31:28 +1000", "Message-ID": "<20260421053140.752059-4-joel@jms.id.au>", "X-Mailer": "git-send-email 2.47.3", "In-Reply-To": "<20260421053140.752059-1-joel@jms.id.au>", "References": "<20260421053140.752059-1-joel@jms.id.au>", "MIME-Version": "1.0", "Content-Transfer-Encoding": "8bit", "Received-SPF": "pass client-ip=2607:f8b0:4864:20::1032;\n envelope-from=joel.stan@gmail.com; helo=mail-pj1-x1032.google.com", "X-Spam_score_int": "-16", "X-Spam_score": "-1.7", "X-Spam_bar": "-", "X-Spam_report": "(-1.7 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1,\n DKIM_VALID=-0.1, DKIM_VALID_EF=-0.1, FREEMAIL_FORGED_FROMDOMAIN=0.001,\n FREEMAIL_FROM=0.001, HEADER_FROM_DIFFERENT_DOMAINS=0.25,\n RCVD_IN_DNSWL_NONE=-0.0001, SPF_HELO_NONE=0.001,\n SPF_PASS=-0.001 autolearn=no autolearn_force=no", "X-Spam_action": "no action", "X-BeenThere": "qemu-devel@nongnu.org", "X-Mailman-Version": "2.1.29", "Precedence": "list", "List-Id": "qemu development <qemu-devel.nongnu.org>", "List-Unsubscribe": "<https://lists.nongnu.org/mailman/options/qemu-devel>,\n <mailto:qemu-devel-request@nongnu.org?subject=unsubscribe>", "List-Archive": "<https://lists.nongnu.org/archive/html/qemu-devel>", "List-Post": "<mailto:qemu-devel@nongnu.org>", "List-Help": "<mailto:qemu-devel-request@nongnu.org?subject=help>", "List-Subscribe": "<https://lists.nongnu.org/mailman/listinfo/qemu-devel>,\n <mailto:qemu-devel-request@nongnu.org?subject=subscribe>", "Errors-To": "qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org", "Sender": "qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org" }, "content": "From: Nicholas Piggin <npiggin@gmail.com>\n\nThis loads firmware into the first (low) memory range,\naccounting for machines having discontiguous memory regions.\n\nSigned-off-by: Nicholas Piggin <npiggin@gmail.com>\nReviewed-by: Daniel Henrique Barboza <daniel.barboza@oss.qualcomm.com>\nSigned-off-by: Joel Stanley <joel@jms.id.au>\n---\nv3: Call riscv_boot_info_init before riscv_find_and_load_firmware in\n sifive_u\n---\n include/hw/riscv/boot.h | 5 ++++-\n hw/riscv/boot.c | 18 ++++++++++++------\n hw/riscv/microchip_pfsoc.c | 6 ++++--\n hw/riscv/opentitan.c | 6 ++++--\n hw/riscv/shakti_c.c | 6 +++++-\n hw/riscv/sifive_u.c | 6 ++++--\n hw/riscv/spike.c | 6 ++++--\n hw/riscv/virt.c | 7 ++++---\n hw/riscv/xiangshan_kmh.c | 6 +++++-\n 9 files changed, 46 insertions(+), 20 deletions(-)", "diff": "diff --git a/include/hw/riscv/boot.h b/include/hw/riscv/boot.h\nindex 115e3222174f..fb90bf12399e 100644\n--- a/include/hw/riscv/boot.h\n+++ b/include/hw/riscv/boot.h\n@@ -53,13 +53,16 @@ void riscv_boot_info_init_discontig_mem(RISCVBootInfo *info,\n vaddr riscv_calc_kernel_start_addr(RISCVBootInfo *info,\n hwaddr firmware_end_addr);\n hwaddr riscv_find_and_load_firmware(MachineState *machine,\n+ RISCVBootInfo *info,\n const char *default_machine_firmware,\n hwaddr *firmware_load_addr,\n symbol_fn_t sym_cb);\n const char *riscv_default_firmware_name(RISCVHartArrayState *harts);\n char *riscv_find_firmware(const char *firmware_filename,\n const char *default_machine_firmware);\n-hwaddr riscv_load_firmware(const char *firmware_filename,\n+hwaddr riscv_load_firmware(MachineState *machine,\n+ RISCVBootInfo *info,\n+ const char *firmware_filename,\n hwaddr *firmware_load_addr,\n symbol_fn_t sym_cb);\n void riscv_load_kernel(MachineState *machine,\ndiff --git a/hw/riscv/boot.c b/hw/riscv/boot.c\nindex 5c9547429a36..3ea95c175c14 100644\n--- a/hw/riscv/boot.c\n+++ b/hw/riscv/boot.c\n@@ -145,6 +145,7 @@ char *riscv_find_firmware(const char *firmware_filename,\n }\n \n hwaddr riscv_find_and_load_firmware(MachineState *machine,\n+ RISCVBootInfo *info,\n const char *default_machine_firmware,\n hwaddr *firmware_load_addr,\n symbol_fn_t sym_cb)\n@@ -157,7 +158,8 @@ hwaddr riscv_find_and_load_firmware(MachineState *machine,\n \n if (firmware_filename) {\n /* If not \"none\" load the firmware */\n- firmware_end_addr = riscv_load_firmware(firmware_filename,\n+ firmware_end_addr = riscv_load_firmware(machine, info,\n+ firmware_filename,\n firmware_load_addr, sym_cb);\n g_free(firmware_filename);\n }\n@@ -165,10 +167,13 @@ hwaddr riscv_find_and_load_firmware(MachineState *machine,\n return firmware_end_addr;\n }\n \n-hwaddr riscv_load_firmware(const char *firmware_filename,\n+hwaddr riscv_load_firmware(MachineState *machine,\n+ RISCVBootInfo *info,\n+ const char *firmware_filename,\n hwaddr *firmware_load_addr,\n symbol_fn_t sym_cb)\n {\n+ uint64_t mem_size = info->ram_low_size ?: machine->ram_size;\n uint64_t firmware_entry, firmware_end;\n ssize_t firmware_size;\n \n@@ -197,7 +202,7 @@ hwaddr riscv_load_firmware(const char *firmware_filename,\n \n firmware_size = load_image_targphys_as(firmware_filename,\n *firmware_load_addr,\n- current_machine->ram_size, NULL,\n+ mem_size, NULL,\n NULL);\n \n if (firmware_size > 0) {\n@@ -212,7 +217,7 @@ hwaddr riscv_load_firmware(const char *firmware_filename,\n static void riscv_load_initrd(MachineState *machine, RISCVBootInfo *info)\n {\n const char *filename = machine->initrd_filename;\n- uint64_t mem_size = machine->ram_size;\n+ uint64_t mem_size = info->ram_low_size ?: machine->ram_size;\n void *fdt = machine->fdt;\n hwaddr start, end;\n ssize_t size;\n@@ -258,6 +263,7 @@ void riscv_load_kernel(MachineState *machine,\n bool load_initrd,\n symbol_fn_t sym_cb)\n {\n+ uint64_t mem_size = info->ram_low_size ?: machine->ram_size;\n const char *kernel_filename = machine->kernel_filename;\n ssize_t kernel_size;\n void *fdt = machine->fdt;\n@@ -289,7 +295,7 @@ void riscv_load_kernel(MachineState *machine,\n }\n \n kernel_size = load_image_targphys_as(kernel_filename, kernel_start_addr,\n- current_machine->ram_size, NULL, NULL);\n+ mem_size, NULL, NULL);\n if (kernel_size > 0) {\n info->kernel_size = kernel_size;\n info->image_low_addr = kernel_start_addr;\n@@ -385,7 +391,7 @@ uint64_t riscv_compute_fdt_addr(hwaddr dram_base, hwaddr dram_size,\n dtb_start = QEMU_ALIGN_DOWN(temp - fdtsize, 2 * MiB);\n \n if (dtb_start_limit && (dtb_start < dtb_start_limit)) {\n- error_report(\"No enough memory to place DTB after kernel/initrd\");\n+ error_report(\"Not enough memory to place DTB after kernel/initrd\");\n exit(1);\n }\n \ndiff --git a/hw/riscv/microchip_pfsoc.c b/hw/riscv/microchip_pfsoc.c\nindex 743f31f00578..1d1ddb05a882 100644\n--- a/hw/riscv/microchip_pfsoc.c\n+++ b/hw/riscv/microchip_pfsoc.c\n@@ -618,18 +618,20 @@ static void microchip_icicle_kit_machine_init(MachineState *machine)\n firmware_load_addr = RESET_VECTOR;\n }\n \n+ riscv_boot_info_init(&boot_info, &s->soc.u_cpus);\n+\n /* Load the firmware if necessary */\n firmware_end_addr = firmware_load_addr;\n if (firmware_name) {\n char *filename = riscv_find_firmware(firmware_name, NULL);\n if (filename) {\n- firmware_end_addr = riscv_load_firmware(filename,\n+ firmware_end_addr = riscv_load_firmware(machine, &boot_info,\n+ filename,\n &firmware_load_addr, NULL);\n g_free(filename);\n }\n }\n \n- riscv_boot_info_init(&boot_info, &s->soc.u_cpus);\n if (machine->kernel_filename) {\n kernel_start_addr = riscv_calc_kernel_start_addr(&boot_info,\n firmware_end_addr);\ndiff --git a/hw/riscv/opentitan.c b/hw/riscv/opentitan.c\nindex 309125e854bc..8cd660dd4154 100644\n--- a/hw/riscv/opentitan.c\n+++ b/hw/riscv/opentitan.c\n@@ -99,12 +99,14 @@ static void opentitan_machine_init(MachineState *machine)\n memory_region_add_subregion(sys_mem,\n memmap[IBEX_DEV_RAM].base, machine->ram);\n \n+ riscv_boot_info_init(&boot_info, &s->soc.cpus);\n+\n if (machine->firmware) {\n hwaddr firmware_load_addr = memmap[IBEX_DEV_RAM].base;\n- riscv_load_firmware(machine->firmware, &firmware_load_addr, NULL);\n+ riscv_load_firmware(machine, &boot_info, machine->firmware,\n+ &firmware_load_addr, NULL);\n }\n \n- riscv_boot_info_init(&boot_info, &s->soc.cpus);\n if (machine->kernel_filename) {\n riscv_load_kernel(machine, &boot_info,\n memmap[IBEX_DEV_RAM].base,\ndiff --git a/hw/riscv/shakti_c.c b/hw/riscv/shakti_c.c\nindex 49a39b30212d..eb720d9cdf5d 100644\n--- a/hw/riscv/shakti_c.c\n+++ b/hw/riscv/shakti_c.c\n@@ -45,6 +45,7 @@ static void shakti_c_machine_state_init(MachineState *mstate)\n {\n ShaktiCMachineState *sms = RISCV_SHAKTI_MACHINE(mstate);\n MemoryRegion *system_memory = get_system_memory();\n+ RISCVBootInfo boot_info;\n hwaddr firmware_load_addr = shakti_c_memmap[SHAKTI_C_RAM].base;\n \n /* Initialize SoC */\n@@ -57,8 +58,11 @@ static void shakti_c_machine_state_init(MachineState *mstate)\n shakti_c_memmap[SHAKTI_C_RAM].base,\n mstate->ram);\n \n+ riscv_boot_info_init(&boot_info, &sms->soc.cpus);\n+\n if (mstate->firmware) {\n- riscv_load_firmware(mstate->firmware, &firmware_load_addr, NULL);\n+ riscv_load_firmware(mstate, &boot_info, mstate->firmware,\n+ &firmware_load_addr, NULL);\n }\n \n /* ROM reset vector */\ndiff --git a/hw/riscv/sifive_u.c b/hw/riscv/sifive_u.c\nindex 7ec67b256514..dda8687bfdd8 100644\n--- a/hw/riscv/sifive_u.c\n+++ b/hw/riscv/sifive_u.c\n@@ -589,11 +589,13 @@ static void sifive_u_machine_init(MachineState *machine)\n break;\n }\n \n+ riscv_boot_info_init(&boot_info, &s->soc.u_cpus);\n+\n firmware_name = riscv_default_firmware_name(&s->soc.u_cpus);\n- firmware_end_addr = riscv_find_and_load_firmware(machine, firmware_name,\n+ firmware_end_addr = riscv_find_and_load_firmware(machine, &boot_info,\n+ firmware_name,\n &start_addr, NULL);\n \n- riscv_boot_info_init(&boot_info, &s->soc.u_cpus);\n if (machine->kernel_filename) {\n kernel_start_addr = riscv_calc_kernel_start_addr(&boot_info,\n firmware_end_addr);\ndiff --git a/hw/riscv/spike.c b/hw/riscv/spike.c\nindex 35c696f891d8..6ee915a8ba4e 100644\n--- a/hw/riscv/spike.c\n+++ b/hw/riscv/spike.c\n@@ -281,9 +281,12 @@ static void spike_board_init(MachineState *machine)\n }\n }\n \n+ riscv_boot_info_init(&boot_info, &s->soc[0]);\n+\n /* Load firmware */\n if (firmware_name) {\n- firmware_end_addr = riscv_load_firmware(firmware_name,\n+ firmware_end_addr = riscv_load_firmware(machine, &boot_info,\n+ firmware_name,\n &firmware_load_addr,\n htif_symbol_callback);\n g_free(firmware_name);\n@@ -293,7 +296,6 @@ static void spike_board_init(MachineState *machine)\n create_fdt(s, memmap, riscv_is_32bit(&s->soc[0]), htif_custom_base);\n \n /* Load kernel */\n- riscv_boot_info_init(&boot_info, &s->soc[0]);\n if (machine->kernel_filename) {\n kernel_start_addr = riscv_calc_kernel_start_addr(&boot_info,\n firmware_end_addr);\ndiff --git a/hw/riscv/virt.c b/hw/riscv/virt.c\nindex a1c323e66dfd..4501d5581b62 100644\n--- a/hw/riscv/virt.c\n+++ b/hw/riscv/virt.c\n@@ -1457,7 +1457,10 @@ static void virt_machine_done(Notifier *notifier, void *data)\n }\n }\n \n- firmware_end_addr = riscv_find_and_load_firmware(machine, firmware_name,\n+ riscv_boot_info_init(&boot_info, &s->soc[0]);\n+\n+ firmware_end_addr = riscv_find_and_load_firmware(machine, &boot_info,\n+ firmware_name,\n &start_addr, NULL);\n \n pflash_blk0 = pflash_cfi01_get_blk(s->flash[0]);\n@@ -1480,8 +1483,6 @@ static void virt_machine_done(Notifier *notifier, void *data)\n }\n }\n \n- riscv_boot_info_init(&boot_info, &s->soc[0]);\n-\n if (machine->kernel_filename && !kernel_entry) {\n kernel_start_addr = riscv_calc_kernel_start_addr(&boot_info,\n firmware_end_addr);\ndiff --git a/hw/riscv/xiangshan_kmh.c b/hw/riscv/xiangshan_kmh.c\nindex 436e51c1c593..247a0b5d1f21 100644\n--- a/hw/riscv/xiangshan_kmh.c\n+++ b/hw/riscv/xiangshan_kmh.c\n@@ -166,6 +166,7 @@ static void xiangshan_kmh_machine_init(MachineState *machine)\n const MemMapEntry *memmap = xiangshan_kmh_memmap;\n MemoryRegion *system_memory = get_system_memory();\n hwaddr start_addr = memmap[XIANGSHAN_KMH_DRAM].base;\n+ RISCVBootInfo boot_info;\n \n /* Initialize SoC */\n object_initialize_child(OBJECT(machine), \"soc\", &s->soc,\n@@ -177,13 +178,16 @@ static void xiangshan_kmh_machine_init(MachineState *machine)\n memmap[XIANGSHAN_KMH_DRAM].base,\n machine->ram);\n \n+ riscv_boot_info_init(&boot_info, &s->soc.cpus);\n+\n /* ROM reset vector */\n riscv_setup_rom_reset_vec(machine, &s->soc.cpus,\n start_addr,\n memmap[XIANGSHAN_KMH_ROM].base,\n memmap[XIANGSHAN_KMH_ROM].size, 0, 0);\n if (machine->firmware) {\n- riscv_load_firmware(machine->firmware, &start_addr, NULL);\n+ riscv_load_firmware(machine, &boot_info, machine->firmware,\n+ &start_addr, NULL);\n }\n \n /* Note: dtb has been integrated into firmware(OpenSBI) when compiling */\n", "prefixes": [ "v3", "03/13" ] }