From patchwork Thu Mar 13 16:38:58 2025 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Pierrick Bouvier X-Patchwork-Id: 14015457 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.xenproject.org (lists.xenproject.org [192.237.175.120]) (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 1DD9AC35FF3 for ; Thu, 13 Mar 2025 16:43:30 +0000 (UTC) Received: from list by lists.xenproject.org with outflank-mailman.913034.1319224 (Exim 4.92) (envelope-from ) id 1tsleU-0003vf-Jf; Thu, 13 Mar 2025 16:43:22 +0000 X-Outflank-Mailman: Message body and most headers restored to incoming version Received: by outflank-mailman (output) from mailman id 913034.1319224; Thu, 13 Mar 2025 16:43:22 +0000 Received: from localhost ([127.0.0.1] helo=lists.xenproject.org) by lists.xenproject.org with esmtp (Exim 4.92) (envelope-from ) id 1tsleU-0003vW-FG; Thu, 13 Mar 2025 16:43:22 +0000 Received: by outflank-mailman (input) for mailman id 913034; Thu, 13 Mar 2025 16:43:21 +0000 Received: from se1-gles-sth1-in.inumbo.com ([159.253.27.254] helo=se1-gles-sth1.inumbo.com) by lists.xenproject.org with esmtp (Exim 4.92) (envelope-from ) id 1tslak-0000Wy-OI for xen-devel@lists.xenproject.org; Thu, 13 Mar 2025 16:39:30 +0000 Received: from mail-pl1-x62c.google.com (mail-pl1-x62c.google.com [2607:f8b0:4864:20::62c]) by se1-gles-sth1.inumbo.com (Halon) with ESMTPS id b9cfe0cb-0029-11f0-9ab9-95dc52dad729; Thu, 13 Mar 2025 17:39:26 +0100 (CET) Received: by mail-pl1-x62c.google.com with SMTP id d9443c01a7336-22334203781so44356635ad.0 for ; Thu, 13 Mar 2025 09:39:26 -0700 (PDT) Received: from pc.. ([38.39.164.180]) by smtp.gmail.com with ESMTPSA id 98e67ed59e1d1-30119265938sm4020084a91.39.2025.03.13.09.39.24 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 13 Mar 2025 09:39:24 -0700 (PDT) X-BeenThere: xen-devel@lists.xenproject.org List-Id: Xen developer discussion List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Errors-To: xen-devel-bounces@lists.xenproject.org Precedence: list Sender: "Xen-devel" X-Inumbo-ID: b9cfe0cb-0029-11f0-9ab9-95dc52dad729 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; t=1741883965; x=1742488765; darn=lists.xenproject.org; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to; bh=YZcwoIie6BtZ5Bqo8BYW0CKBTK95znA0iA8YHmiy7v4=; b=XY0pAryMmuVMSRw/P/gqFLlcBZmW1H9roUoeM55D2hdK9PBD1y7Zc6V5DqKdbf0czu beWGFzQIAtmZ6ggoYv6hqdoC6MweXykxhExv9vBMGTNgx348Wug+YVj1am6myLyRb3/i veQMi0EFM5CYQa22KvrX0ecW15EdfGdSwXd+c5spV9z7diq4e5ytkDUt/pijgEeg83Aa wDeqZzMXH5qcitrzuyQmbFtxuc/e3oLZaB7rrFKHaYjO3dDCZlImY8i2+Dfc3srFJM22 M/thlHsdnsVQP/p+wFgsPxvlcSjCEQ39EZPdWYF46QlG21ee6vqFxPnaKZmwRonbS8D9 6MzA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1741883965; x=1742488765; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=YZcwoIie6BtZ5Bqo8BYW0CKBTK95znA0iA8YHmiy7v4=; b=e0wPqGMFc8xmBxy8BWAS4zrswnGmgupOg/45MQGGm1uRrSoZToAbsb20XkBzDiNkQS dR2AxFhtFIVrtTMeuUP12CWlrhAXGeseb0mVGgZ1UamJbKth/wnztdvwIfztTlKP//u5 xbIggHre1NpDaMtfIFHq88nGwOL8BLC22LHTtlboEv0I64sqZ8WhhsCM030pLXtUspPI Yk7opoJumzrUohJzq9SsqqkljSAS8atVCCVGqeXUebSTDa3hVLMohDRP5E8n+T83UvVY YTPje2hg0tvCr592pZ9ZkEbvn6gyDzcVAZZBJtE3C1lS6nbzf+Ydr/jns1hpO6t6AUs4 Tm+Q== X-Forwarded-Encrypted: i=1; AJvYcCWu0tToXJjyE75+TQWaP2GWq45YpGxWUnBFoS0XF9wdBaUqszvQh05XcrGRkHvOhZ8eO5xJ9VwKhvc=@lists.xenproject.org X-Gm-Message-State: AOJu0YzfCGgEh4s4IPdUyW3SFrAClr/pIXeUBF1Y75dB1J1ZhTQIjCoY qMqXlYRK84BEGeMemsaHPycn+TXCPEheJbu+y2zDBVusm65TOIetPnMAmINzSDs= X-Gm-Gg: ASbGncvh0AQJMzIHIqYpvCFOJOrERUWRToVgFyF+sCK8GmKo88tq1qMwVzK2tFfQZQH 4Vpv+kaJTKPwiscdbbtndW2TAjvaO/y2YvC1QjJC9rbizmaKfbnT0S4Wzwn4erOE9T7oor2+2J4 LKCS4wyc4B+GeqlkrcgHIzvgKwRt3HQaB6F8sdY9abF8pM+iZNCaG1Kf8iLWloW4aCwWY8QoVZX p8h/anEZFNjYX7+cMNkF8e5I5V455K5YPnHBSyW4lBDYOm/NhoMJxDtdg3e20CQ7GYJZH9Jv6RS joVCDdmZczeB0oPybaqLFPNmgHxfGCzt5XLPUyZGtvBC X-Google-Smtp-Source: AGHT+IFiKP7Cv0cYdqEMV+MhGWK6VMcS4hFI6ysthSkCfjorg7zJkJOo9IS+PhkZP2SVMZhjn6kprA== X-Received: by 2002:a17:90b:3502:b0:2fa:21d3:4332 with SMTP id 98e67ed59e1d1-30135f4d091mr4406058a91.12.1741883965232; Thu, 13 Mar 2025 09:39:25 -0700 (PDT) From: Pierrick Bouvier To: qemu-devel@nongnu.org Cc: Paul Durrant , =?utf-8?q?Philippe_Mathieu-Daud=C3=A9?= , Harsh Prateek Bora , Liu Zhiwei , "Edgar E. Iglesias" , xen-devel@lists.xenproject.org, Peter Xu , alex.bennee@linaro.org, manos.pitsidianakis@linaro.org, Stefano Stabellini , Paolo Bonzini , qemu-ppc@nongnu.org, Richard Henderson , kvm@vger.kernel.org, David Hildenbrand , Palmer Dabbelt , Weiwei Li , qemu-riscv@nongnu.org, Alistair Francis , Anthony PERARD , Yoshinori Sato , Daniel Henrique Barboza , Nicholas Piggin , Pierrick Bouvier Subject: [PATCH v4 12/17] hw/xen: add stubs for various functions Date: Thu, 13 Mar 2025 09:38:58 -0700 Message-Id: <20250313163903.1738581-13-pierrick.bouvier@linaro.org> X-Mailer: git-send-email 2.39.5 In-Reply-To: <20250313163903.1738581-1-pierrick.bouvier@linaro.org> References: <20250313163903.1738581-1-pierrick.bouvier@linaro.org> MIME-Version: 1.0 Those functions are used by system/physmem.c, and are called only if xen is enabled (which happens only if CONFIG_XEN is not set). So we can crash in case those are called. Acked-by: Richard Henderson Signed-off-by: Pierrick Bouvier Acked-by: Anthony PERARD --- hw/xen/xen_stubs.c | 56 ++++++++++++++++++++++++++++++++++++++++++++++ hw/xen/meson.build | 3 +++ 2 files changed, 59 insertions(+) create mode 100644 hw/xen/xen_stubs.c diff --git a/hw/xen/xen_stubs.c b/hw/xen/xen_stubs.c new file mode 100644 index 00000000000..19cee84bbb4 --- /dev/null +++ b/hw/xen/xen_stubs.c @@ -0,0 +1,56 @@ +/* + * Various stubs for xen functions + * + * Those functions are used only if xen_enabled(). This file is linked only if + * CONFIG_XEN is not set, so they should never be called. + * + * Copyright (c) 2025 Linaro, Ltd. + * + * SPDX-License-Identifier: GPL-2.0-or-later + */ + +#include "qemu/osdep.h" +#include "system/xen.h" +#include "system/xen-mapcache.h" + +void xen_hvm_modified_memory(ram_addr_t start, ram_addr_t length) +{ + g_assert_not_reached(); +} + +void xen_ram_alloc(ram_addr_t ram_addr, ram_addr_t size, + struct MemoryRegion *mr, Error **errp) +{ + g_assert_not_reached(); +} + +bool xen_mr_is_memory(MemoryRegion *mr) +{ + g_assert_not_reached(); +} + +void xen_invalidate_map_cache_entry(uint8_t *buffer) +{ + g_assert_not_reached(); +} + +void xen_invalidate_map_cache(void) +{ + g_assert_not_reached(); +} + +ram_addr_t xen_ram_addr_from_mapcache(void *ptr) +{ + g_assert_not_reached(); +} + +uint8_t *xen_map_cache(MemoryRegion *mr, + hwaddr phys_addr, + hwaddr size, + ram_addr_t ram_addr_offset, + uint8_t lock, + bool dma, + bool is_write) +{ + g_assert_not_reached(); +} diff --git a/hw/xen/meson.build b/hw/xen/meson.build index 4a486e36738..a1850e76988 100644 --- a/hw/xen/meson.build +++ b/hw/xen/meson.build @@ -9,6 +9,9 @@ system_ss.add(when: ['CONFIG_XEN_BUS'], if_true: files( system_ss.add(when: ['CONFIG_XEN', xen], if_true: files( 'xen-operations.c', +), +if_false: files( + 'xen_stubs.c', )) xen_specific_ss = ss.source_set()