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GET /api/patches/2222427/?format=api
{ "id": 2222427, "url": "http://patchwork.ozlabs.org/api/patches/2222427/?format=api", "web_url": "http://patchwork.ozlabs.org/project/qemu-ppc/patch/20260411154535.1451361-1-vivien.leger@gmail.com/", "project": { "id": 69, "url": "http://patchwork.ozlabs.org/api/projects/69/?format=api", "name": "QEMU powerpc development", "link_name": "qemu-ppc", "list_id": "qemu-ppc.nongnu.org", "list_email": "qemu-ppc@nongnu.org", "web_url": "", "scm_url": "", "webscm_url": "", "list_archive_url": "", "list_archive_url_format": "", "commit_url_format": "" }, "msgid": "<20260411154535.1451361-1-vivien.leger@gmail.com>", "list_archive_url": null, "date": "2026-04-11T15:45:35", "name": "hw/ppc/e500: fix bus-frequency property hardcoded to zero in CPU FDT node", "commit_ref": null, "pull_url": null, "state": "new", "archived": false, "hash": "75de1be57b615814b53161dfefc9f366414896a1", "submitter": { "id": 93121, "url": "http://patchwork.ozlabs.org/api/people/93121/?format=api", "name": "Vivien LEGER", "email": "vivien.leger@gmail.com" }, "delegate": null, "mbox": "http://patchwork.ozlabs.org/project/qemu-ppc/patch/20260411154535.1451361-1-vivien.leger@gmail.com/mbox/", "series": [ { "id": 499564, "url": "http://patchwork.ozlabs.org/api/series/499564/?format=api", "web_url": "http://patchwork.ozlabs.org/project/qemu-ppc/list/?series=499564", "date": "2026-04-11T15:45:35", "name": "hw/ppc/e500: fix bus-frequency property hardcoded to zero in CPU FDT node", "version": 1, "mbox": "http://patchwork.ozlabs.org/series/499564/mbox/" } ], "comments": "http://patchwork.ozlabs.org/api/patches/2222427/comments/", "check": "pending", "checks": "http://patchwork.ozlabs.org/api/patches/2222427/checks/", "tags": {}, "related": [], "headers": { "Return-Path": "<qemu-ppc-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=pass (2048-bit key;\n unprotected) header.d=gmail.com header.i=@gmail.com header.a=rsa-sha256\n header.s=20251104 header.b=OT6Mt8H3;\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-ppc-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 4ftJB14WXlz1y2d\n\tfor <incoming@patchwork.ozlabs.org>; Sun, 12 Apr 2026 01:53:45 +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-ppc-bounces@nongnu.org>)\n\tid 1wBadd-0007IX-EV; Sat, 11 Apr 2026 11:52:49 -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 <vivien.leger@gmail.com>)\n id 1wBaWs-0005Ho-6s\n for qemu-ppc@nongnu.org; Sat, 11 Apr 2026 11:45:59 -0400", "from mail-wm1-x32d.google.com ([2a00:1450:4864:20::32d])\n by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128)\n (Exim 4.90_1) (envelope-from <vivien.leger@gmail.com>)\n id 1wBaWk-0001CW-KS\n for qemu-ppc@nongnu.org; Sat, 11 Apr 2026 11:45:48 -0400", "by mail-wm1-x32d.google.com with SMTP id\n 5b1f17b1804b1-488c2690057so28707345e9.0\n for <qemu-ppc@nongnu.org>; Sat, 11 Apr 2026 08:45:40 -0700 (PDT)", "from vle-arch (88-184-113-142.subs.proxad.net. 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With bus-frequency=0, the timer interval\noverflows to ~85 seconds, preventing any clock interrupts from firing.\n\nFix by adding a bus_freq field to PPCE500MachineClass and using it in\nthe FDT generator. Set bus_freq = PLATFORM_CLK_FREQ_HZ (400MHz) for\nexisting machines, matching the existing clock_freq value.\n\nSigned-off-by: Vivien LEGER <vivien.leger@gmail.com>\n---\n hw/ppc/e500.c | 2 +-\n hw/ppc/e500.h | 1 +\n hw/ppc/e500plat.c | 1 +\n hw/ppc/mpc8544ds.c | 1 +\n 4 files changed, 4 insertions(+), 1 deletion(-)", "diff": "diff --git a/hw/ppc/e500.c b/hw/ppc/e500.c\nindex d6ca2e8..5be2f20 100644\n--- a/hw/ppc/e500.c\n+++ b/hw/ppc/e500.c\n@@ -518,7 +518,7 @@ static int ppce500_load_device_tree(PPCE500MachineState *pms,\n env->icache_line_size);\n qemu_fdt_setprop_cell(fdt, cpu_name, \"d-cache-size\", 0x8000);\n qemu_fdt_setprop_cell(fdt, cpu_name, \"i-cache-size\", 0x8000);\n- qemu_fdt_setprop_cell(fdt, cpu_name, \"bus-frequency\", 0);\n+ qemu_fdt_setprop_cell(fdt, cpu_name, \"bus-frequency\", pmc->bus_freq);\n if (cpu->cpu_index) {\n qemu_fdt_setprop_string(fdt, cpu_name, \"status\", \"disabled\");\n qemu_fdt_setprop_string(fdt, cpu_name, \"enable-method\",\ndiff --git a/hw/ppc/e500.h b/hw/ppc/e500.h\nindex 11f8ae5..6d56c7b 100644\n--- a/hw/ppc/e500.h\n+++ b/hw/ppc/e500.h\n@@ -40,6 +40,7 @@ struct PPCE500MachineClass {\n hwaddr pci_mmio_bus_base;\n hwaddr spin_base;\n uint32_t clock_freq;\n+ uint32_t bus_freq;\n uint32_t tb_freq;\n };\n \ndiff --git a/hw/ppc/e500plat.c b/hw/ppc/e500plat.c\nindex ca56472..85cec81 100644\n--- a/hw/ppc/e500plat.c\n+++ b/hw/ppc/e500plat.c\n@@ -94,6 +94,7 @@ static void e500plat_machine_class_init(ObjectClass *oc, const void *data)\n pmc->pci_mmio_bus_base = 0xE0000000ULL;\n pmc->spin_base = 0xFEF000000ULL;\n pmc->clock_freq = PLATFORM_CLK_FREQ_HZ;\n+ pmc->bus_freq = PLATFORM_CLK_FREQ_HZ;\n pmc->tb_freq = PLATFORM_CLK_FREQ_HZ;\n \n mc->desc = \"generic paravirt e500 platform\";\ndiff --git a/hw/ppc/mpc8544ds.c b/hw/ppc/mpc8544ds.c\nindex 5826985..d022761 100644\n--- a/hw/ppc/mpc8544ds.c\n+++ b/hw/ppc/mpc8544ds.c\n@@ -56,6 +56,7 @@ static void mpc8544ds_machine_class_init(ObjectClass *oc, const void *data)\n pmc->pci_pio_base = 0xE1000000ULL;\n pmc->spin_base = 0xEF000000ULL;\n pmc->clock_freq = PLATFORM_CLK_FREQ_HZ;\n+ pmc->bus_freq = PLATFORM_CLK_FREQ_HZ;\n pmc->tb_freq = PLATFORM_CLK_FREQ_HZ;\n \n mc->desc = \"mpc8544ds\";\n", "prefixes": [] }