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[176.184.25.155]) by smtp.gmail.com with ESMTPSA id m16-20020a1709060d9000b009be14e5cd54sm5785453eji.57.2023.11.14.08.31.25 (version=TLS1_3 cipher=TLS_CHACHA20_POLY1305_SHA256 bits=256/256); Tue, 14 Nov 2023 08:31:26 -0800 (PST) From: =?UTF-8?q?Philippe=20Mathieu-Daud=C3=A9?= To: qemu-devel@nongnu.org Cc: Anthony Perard , Paul Durrant , David Woodhouse , Thomas Huth , qemu-arm@nongnu.org, Stefano Stabellini , Paolo Bonzini , =?UTF-8?q?Alex=20Benn=C3=A9e?= , xen-devel@lists.xenproject.org, =?UTF-8?q?Philippe=20Mathieu-Daud=C3=A9?= Subject: [RFC PATCH-for-9.0 0/9] hw/xen: Have ARM targets use common xen_memory_listener Date: Tue, 14 Nov 2023 17:31:14 +0100 Message-ID: <20231114163123.74888-1-philmd@linaro.org> X-Mailer: git-send-email 2.41.0 MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 8bit Received-SPF: pass client-ip=2a00:1450:4864:20::62c; envelope-from=philmd@linaro.org; helo=mail-ej1-x62c.google.com 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, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 autolearn=unavailable autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Hi, While looking at Xen target-specific code, I noticed some generic code used by x86 which is not implemented for ARM. Maybe ARM machines don't need it, I don't know. But I wanted to see if I can get this common code target agnostic and build it once, possibly bringing smth useful to ARM. The changes don't break CI testing and Avocado local tests. If this xen_memory_listener feature isn't required for ARM, I'll send follow up patch that keep this series with common xen_memory_listener but with a runtime flag to disable. Patches do the usual "change target-specific API to a target-agnostic one", in particular using "exec/target_page.h" at runtime. Then non-x86 code is extracted, then merged to the generic xen/xen-hvm-common.c. Thoughts? Regards, Phil. Based-on: <20231114143816.71079-1-philmd@linaro.org> Philippe Mathieu-Daudé (9): hw/xen/hvm: Inline TARGET_PAGE_ALIGN() macro hw/xen/hvm: Propagate page_mask to a pair of functions hw/xen/hvm: Get target page size at runtime hw/xen/hvm: Expose xen_memory_listener declaration hw/xen/hvm: Expose xen_read_physmap() prototype hw/xen/hvm: Initialize xen_physmap QLIST in xen_read_physmap() hw/xen/hvm: Extract common code to xen-hvm-common.c hw/xen/hvm: Merge xen-hvm-common.c files hw/xen/hvm: Inline xen_arch_set_memory() include/hw/xen/xen-hvm-common.h | 5 +- hw/arm/xen_arm.c | 24 -- hw/i386/xen/xen-hvm.c | 441 +---------------------------- hw/xen/xen-hvm-common.c | 474 +++++++++++++++++++++++++++++++- stubs/xen-hw-stub.c | 4 - 5 files changed, 468 insertions(+), 480 deletions(-) -- 2.41.0