From nobody Sun Mar 22 15:36:06 2026 Delivered-To: importer@patchew.org Authentication-Results: mx.zohomail.com; dkim=pass; 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; dmarc=pass(p=quarantine dis=none) header.from=kernel.org ARC-Seal: i=1; a=rsa-sha256; t=1773954803; cv=none; d=zohomail.com; s=zohoarc; b=OEq7sXGAA6cAuXOnMGzuFs3frPHauJEmAq0RSUUK/xeTfCFpyILrjEjdvWYcgDd4wx49bKcjWmRWObt72K2TMCFOTZkHsr/CaHrLDy6EtSSk2th5zZYVlqPOyZymXImz97qzDYCq7v5maWOyYXRZqSs8Q3r1VCKycwZ/Lyp7CrU= ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=zohomail.com; s=zohoarc; t=1773954803; h=Content-Transfer-Encoding:Cc:Cc:Date:Date:From:From:In-Reply-To:List-Subscribe:List-Post:List-Id:List-Archive:List-Help:List-Unsubscribe:MIME-Version:Message-ID:References:Sender:Subject:Subject:To:To:Message-Id:Reply-To; bh=Kmf7k0TEifqM4JaF6eVB5qlKDE88TeGhAt+GzSOe1p8=; b=ODAEoqmpvsIXz6IyOq/Ec8/gxCspiaGOxrD7aVh6I7msn398iP/ZlXVCcVwoHNVAokpHiqyjQPrUWlJxTPI+72zpSil3qbNbnKDIHcWJo8ROP9IlWJF4PCZBZuAnTro/J+az2pVEUNxm91/JZtWuexOqAKtPzAve9+eEke3ihIw= ARC-Authentication-Results: i=1; mx.zohomail.com; dkim=pass; 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; dmarc=pass header.from= (p=quarantine dis=none) Return-Path: Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) by mx.zohomail.com with SMTPS id 1773954803483970.8715339320812; Thu, 19 Mar 2026 14:13:23 -0700 (PDT) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1w3Kg2-0001cH-RR; Thu, 19 Mar 2026 17:13:10 -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 1w3Kfp-0001WG-77 for qemu-devel@nongnu.org; Thu, 19 Mar 2026 17:12:57 -0400 Received: from sea.source.kernel.org ([2600:3c0a:e001:78e:0:1991:8:25]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1w3Kfl-0003gk-SV for qemu-devel@nongnu.org; Thu, 19 Mar 2026 17:12:56 -0400 Received: from smtp.kernel.org (transwarp.subspace.kernel.org [100.75.92.58]) by sea.source.kernel.org (Postfix) with ESMTP id A63E743FDA; Thu, 19 Mar 2026 21:12:51 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 48165C2BC9E; Thu, 19 Mar 2026 21:12:50 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1773954771; bh=zIl2Hp8jjQ0zjD/njDXTIeEwBZZVJ/K4isuPfVOqJfU=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=ZX4ucVnVukIx/aHRMJ4pfb0OH4l5E9SqmHNzIpJ0H6cP0AK0WeZHpv5aT92PN3Ujf Il/XWSBELhFshikMUdPcij9lx1ToXzYf+o8ddP1lo2wj6ZNwbHfs+XhDHh6pDyZLLF z37VBHoUViWmGdhh/9iZWEpYYcI+kyIz8+eVRrdigNu2kHMoBeqlvgpVMWFiFVlj1A cr08yhLHt12lldY4zKbvYTkV1aHz+zhUKAZAu1yswqajc+L7vGoP0yPvnpe7N+m+Ef YEnF8C3foZkw/f8+abVUa+SfUVXyld2MVmQF9mwtv2tfMZjtgSjXFtn4fI6akRrxkg ejSibfGMZpknA== From: Helge Deller To: qemu-devel@nongnu.org Cc: =?UTF-8?q?Philippe=20Mathieu-Daud=C3=A9?= , Helge Deller , Richard Henderson , Anton Johansson Subject: [PULL 5/6] hw/hppa: Fix crash of 64-bit HP-UX 11 while flushing caches Date: Thu, 19 Mar 2026 22:12:38 +0100 Message-ID: <20260319211239.7902-6-deller@kernel.org> X-Mailer: git-send-email 2.53.0 In-Reply-To: <20260319211239.7902-1-deller@kernel.org> References: <20260319211239.7902-1-deller@kernel.org> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable 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=2600:3c0a:e001:78e:0:1991:8:25; envelope-from=deller@kernel.org; helo=sea.source.kernel.org X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.001, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, 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: qemu development 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-ZohoMail-DKIM: pass (identity @kernel.org) X-ZM-MESSAGEID: 1773954806126158500 Content-Type: text/plain; charset="utf-8" From: Helge Deller HP-UX 11 64-bit reads at bootup a word from address CPU_HPA + 0x500 while flushing the the cache of a T600. Add a memory handler to avoid crashing while reading this word. Signed-off-by: Helge Deller Reviewed-by: Anton Johansson --- hw/hppa/machine.c | 20 ++++++++++++++++++++ 1 file changed, 20 insertions(+) diff --git a/hw/hppa/machine.c b/hw/hppa/machine.c index e72dda2a68..318ebfeee4 100644 --- a/hw/hppa/machine.c +++ b/hw/hppa/machine.c @@ -306,6 +306,8 @@ static TranslateFn *machine_HP_common_init_cpus(Machine= State *machine) =20 for (unsigned int i =3D 0; i < smp_cpus; i++) { g_autofree char *name =3D g_strdup_printf("cpu%u-io-eir", i); + g_autofree char *cflush_name =3D NULL; + MemoryRegion *cflush; =20 cpu_region =3D g_new(MemoryRegion, 1); memory_region_init_io(cpu_region, OBJECT(cpu[i]), &hppa_io_eir_ops, @@ -313,6 +315,24 @@ static TranslateFn *machine_HP_common_init_cpus(Machin= eState *machine) memory_region_add_subregion(addr_space, translate(NULL, CPU_HPA + i * 0x1000), cpu_region); + + if (!hppa_is_pa20(&cpu[0]->env)) { + continue; + } + + /* + * HP-UX 11 64-bit reads a word from address CPU_HPA + 0x500 + * while flushing the cache of a T600, which was the first + * server with a 64-bit PA-RISC 2.0 CPU. + * We return 0, since the value isn't used anyway. + */ + cflush_name =3D g_strdup_printf("cpu%u-T600-cacheflush", i); + cflush =3D g_new(MemoryRegion, 1); + memory_region_init_io(cflush, NULL, &hppa_pci_ignore_ops, + NULL, cflush_name, 4); + memory_region_add_subregion(addr_space, + translate(NULL, CPU_HPA + i * 0x1000 + 0x500= ), + cflush); } =20 /* RTC and DebugOutputPort on CPU #0 */ --=20 2.53.0