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Tue, 14 Oct 2025 04:12:37 -0700 (PDT) From: =?UTF-8?q?Alex=20Benn=C3=A9e?= To: qemu-devel@nongnu.org Cc: David Hildenbrand , Paolo Bonzini , Eric Blake , =?UTF-8?q?Philippe=20Mathieu-Daud=C3=A9?= , Dmitry Osipenko , Markus Armbruster , =?UTF-8?q?Alex=20Benn=C3=A9e?= , Akihiko Odaki , =?UTF-8?q?Marc-Andr=C3=A9=20Lureau?= , Peter Xu , "Michael S. Tsirkin" Subject: [PATCH 2/8] system/memory: add memory_region_finalize tracepoint Date: Tue, 14 Oct 2025 12:12:28 +0100 Message-ID: <20251014111234.3190346-3-alex.bennee@linaro.org> X-Mailer: git-send-email 2.47.3 In-Reply-To: <20251014111234.3190346-1-alex.bennee@linaro.org> References: <20251014111234.3190346-1-alex.bennee@linaro.org> MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" 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=2a00:1450:4864:20::529; envelope-from=alex.bennee@linaro.org; helo=mail-ed1-x529.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 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: 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 @linaro.org) X-ZM-MESSAGEID: 1760440503000154100 This only traces named memory regions as it is otherwise quite noisy every time the address map changes. Signed-off-by: Alex Benn=C3=A9e --- system/memory.c | 5 +++++ system/trace-events | 1 + 2 files changed, 6 insertions(+) diff --git a/system/memory.c b/system/memory.c index 8b84661ae36..fd7c3192ed4 100644 --- a/system/memory.c +++ b/system/memory.c @@ -1821,6 +1821,11 @@ static void memory_region_finalize(Object *obj) * memory_region_set_enabled instead could trigger a transaction and * cause an infinite loop. */ + + if (mr->name) { + trace_memory_region_finalize(mr, mr->name); + } + mr->enabled =3D false; memory_region_transaction_begin(); if (mr->container) { diff --git a/system/trace-events b/system/trace-events index 82856e44f2e..a8ef2326e14 100644 --- a/system/trace-events +++ b/system/trace-events @@ -23,6 +23,7 @@ memory_region_subpage_write(int cpu_index, void *mr, uint= 64_t offset, uint64_t v memory_region_ram_device_read(int cpu_index, void *mr, uint64_t addr, uint= 64_t value, unsigned size) "cpu %d mr %p addr 0x%"PRIx64" value 0x%"PRIx64"= size %u" memory_region_ram_device_write(int cpu_index, void *mr, uint64_t addr, uin= t64_t value, unsigned size) "cpu %d mr %p addr 0x%"PRIx64" value 0x%"PRIx64= " size %u" memory_region_sync_dirty(const char *mr, const char *listener, int global)= "mr '%s' listener '%s' synced (global=3D%d)" +memory_region_finalize(void *mr, const char *name) "mr %p, %s" flatview_new(void *view, void *root) "%p (root %p)" flatview_destroy(void *view, void *root) "%p (root %p)" flatview_destroy_rcu(void *view, void *root) "%p (root %p)" --=20 2.47.3