From patchwork Tue Mar 11 19:57:58 2025 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Pierrick Bouvier X-Patchwork-Id: 14012647 Received: from mail-pl1-f174.google.com (mail-pl1-f174.google.com [209.85.214.174]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 2BE7B264FA8 for ; Tue, 11 Mar 2025 19:58:24 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.214.174 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1741723106; cv=none; b=b7TtE6kONyFSp3figb4CYrNcNrEG7JTjKSqwetJzWBEaK5RKIq/5qSREt17+3DsZEDksOI2cGLXchKPbTk2xMXpykFFuERn07fn7ZCSM7QXPAZ/WxwO3pXqeHWeJPtdCB8nXvK0MBj9ZHn2sSYxqpNEMm8rmbr009x+AXBAvFwM= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1741723106; c=relaxed/simple; bh=2BGYv29y1gAuWbOxLdSmdLhzjdPFXu3kgq+kOyRsd60=; h=From:To:Cc:Subject:Date:Message-Id:In-Reply-To:References: MIME-Version; b=NojEez+VaUis54s4xkd1akPh5ioA/RZJBLQgs98rb16XyAXFAtduGz3yXBl9YyEvZ8NWxw1IM4bEIS7pBNmEmGKyuvbDLLYrQzGDbnPMFdvYJvuRuHC4s4ngu7DWSeTVNOIK6SXKQLUz2ypDrCBRJiDPnSLvD44IxDabzsNeVxw= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linaro.org; spf=pass smtp.mailfrom=linaro.org; dkim=pass (2048-bit key) header.d=linaro.org header.i=@linaro.org header.b=rJX4cJi0; arc=none smtp.client-ip=209.85.214.174 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linaro.org Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=linaro.org Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=linaro.org header.i=@linaro.org header.b="rJX4cJi0" Received: by mail-pl1-f174.google.com with SMTP id d9443c01a7336-2235189adaeso4054725ad.0 for ; Tue, 11 Mar 2025 12:58:24 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; t=1741723104; x=1742327904; darn=vger.kernel.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=rJX4cJi0dmaUt93sUvWSQXQmElh79kgiqadsHJxHIFKNpFQk8RzL37Em/2GaBviEUO rh2F2KI54f+RymMB5ozYcFIy3x1PgjwGzsEAUHDXgQ2QEqSRhax43bgewJ5l/+s1GOgt LKfcTLuz4tSrJ1fJwIH0L2HFDcT568pdIwRlwhMKD+72nLibAvbXg+z1YsiV9KRO/p7v YY5NhI/C8bYuwQDa/30Ar4a98IlLNgftSXmr9/h/GwSvIHrWLci7mKiSjqw4yYrGlRig MEiUEJQ5852bKjMH43DVVE7tmN9Uhxa6MejHh1+vH8m1LJnBUprGf62aU7RlycbHQdjR HupA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1741723104; x=1742327904; 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=FgLqrYjFVM8tioaBUHnsRURjWHPbSQ/aJS7Jnp/jtUwOi7PfgEVUEEEMUpnWV/PYbD YhYka55vGmEpRdk1UkxLl408Uym2/oqsC+mrsDC50VBCEgj16DyoxUsgxcoro/r7NVQm KTXt6ydkdHwaR7wDYg2oRxcsNxIprye/TrsjAeWCIAXC1EugFHLhCF4Fk3JQ1dSqWxqp MxW0tcwRKahECe/rCM8ZpKAJu94KOMkWJJE2L1ftHtd2TrOdV/+p8Ut8Wit1SWJe325S A3Rc3/SPeVtmnORSp4Rm17VsDcVdr9DSTNW/tmLYL9LndfR9IjMLzh8UfxRZEHUlRCaz iK8w== X-Forwarded-Encrypted: i=1; AJvYcCUFGxid9jOhJGMfIEqAG/XxTyM8tmFX6RuLZqj485BZbLmJ3ZujWx60i8uDAD9dkodJqO4=@vger.kernel.org X-Gm-Message-State: AOJu0Yz57538BZpwcP6kQsCr55A2CrThLHpkmylHso485Qaut0OzCFfJ eVROwBBp2ZsSVrG5LiZmkKmGCrtAW9bmXyI+DsMzXPvtbMNMRqI6M8iX9Y5K0Ho= X-Gm-Gg: ASbGncsQ3rctAabEnbhIXlED9WwfsELX89nF6mUbJ3Z5UUueaOPClyVY/YDcwMuvXly lCZiCVAuWXw9jJmUeShob+HojmybNgesF51bazo37B7Kw9E51gK8mc7ze9eU9b3de9JT1XqI0ju 9HE2V3uhD6fyyjdudljb5bWEhyJ1tTPP9LaRGDboM0c+9Uk5dnYZR9BRXUtFOsM94uhbfuq1OAt tcXtQDlmx2cpi/Q6OvmZ0MDGHsFdWojR4dcmg4iryIXPMdQMY6VGdDwsMvlqqEnSurHfSo875d7 qiRyuwTlwG5LwfZwOjgimprhPhcvgeKZ+qpPMAwmRBpj X-Google-Smtp-Source: AGHT+IEToni6mHy+/TOd0EQfFDFUNLQyZb+aNmkKXcJNYvCuHB4nuxbuNFqkwEKNu7S4yPPDELKJzQ== X-Received: by 2002:a17:902:eccd:b0:21f:5063:d3ca with SMTP id d9443c01a7336-22593dc5076mr68139055ad.16.1741723104414; Tue, 11 Mar 2025 12:58:24 -0700 (PDT) Received: from pc.. ([38.39.164.180]) by smtp.gmail.com with ESMTPSA id d2e1a72fcca58-736a6e5c13asm9646981b3a.157.2025.03.11.12.58.23 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 11 Mar 2025 12:58:24 -0700 (PDT) From: Pierrick Bouvier To: qemu-devel@nongnu.org Cc: David Hildenbrand , Stefano Stabellini , "Edgar E. Iglesias" , Anthony PERARD , xen-devel@lists.xenproject.org, Nicholas Piggin , Richard Henderson , Weiwei Li , kvm@vger.kernel.org, Palmer Dabbelt , Paolo Bonzini , =?utf-8?q?Philippe_Mathieu-Daud=C3=A9?= , Paul Durrant , Liu Zhiwei , Daniel Henrique Barboza , manos.pitsidianakis@linaro.org, Peter Xu , Harsh Prateek Bora , Alistair Francis , alex.bennee@linaro.org, Yoshinori Sato , qemu-riscv@nongnu.org, qemu-ppc@nongnu.org, Pierrick Bouvier Subject: [PATCH v3 12/17] hw/xen: add stubs for various functions Date: Tue, 11 Mar 2025 12:57:58 -0700 Message-Id: <20250311195803.4115788-13-pierrick.bouvier@linaro.org> X-Mailer: git-send-email 2.39.5 In-Reply-To: <20250311195803.4115788-1-pierrick.bouvier@linaro.org> References: <20250311195803.4115788-1-pierrick.bouvier@linaro.org> Precedence: bulk X-Mailing-List: kvm@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: 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 --- 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()