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GET /api/1.1/patches/2232519/?format=api
{ "id": 2232519, "url": "http://patchwork.ozlabs.org/api/1.1/patches/2232519/?format=api", "web_url": "http://patchwork.ozlabs.org/project/qemu-devel/patch/20260504-feat-mte4-v5-14-232a648e63c6@gmail.com/", "project": { "id": 14, "url": "http://patchwork.ozlabs.org/api/1.1/projects/14/?format=api", "name": "QEMU Development", "link_name": "qemu-devel", "list_id": "qemu-devel.nongnu.org", "list_email": "qemu-devel@nongnu.org", "web_url": "", "scm_url": "", "webscm_url": "" }, "msgid": "<20260504-feat-mte4-v5-14-232a648e63c6@gmail.com>", "date": "2026-05-04T15:50:47", "name": "[v5,14/15] tests/tcg: add test for MTE FAR", "commit_ref": null, "pull_url": null, "state": "new", "archived": false, "hash": "f953c5f0d08013116ffb33d92a88e63b2075b53a", "submitter": { "id": 91863, "url": "http://patchwork.ozlabs.org/api/1.1/people/91863/?format=api", "name": "Gabriel Brookman", "email": "brookmangabriel@gmail.com" }, "delegate": null, "mbox": "http://patchwork.ozlabs.org/project/qemu-devel/patch/20260504-feat-mte4-v5-14-232a648e63c6@gmail.com/mbox/", "series": [ { "id": 502688, "url": "http://patchwork.ozlabs.org/api/1.1/series/502688/?format=api", "web_url": "http://patchwork.ozlabs.org/project/qemu-devel/list/?series=502688", "date": "2026-05-04T15:50:33", "name": "target/arm: add support for MTE4", "version": 5, "mbox": "http://patchwork.ozlabs.org/series/502688/mbox/" } ], "comments": "http://patchwork.ozlabs.org/api/patches/2232519/comments/", "check": "pending", "checks": "http://patchwork.ozlabs.org/api/patches/2232519/checks/", "tags": {}, "headers": { "Return-Path": "<qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org>", "X-Original-To": "incoming@patchwork.ozlabs.org", "Delivered-To": "patchwork-incoming@legolas.ozlabs.org", "Authentication-Results": [ "legolas.ozlabs.org;\n\tdkim=pass (2048-bit key;\n unprotected) header.d=gmail.com header.i=@gmail.com header.a=rsa-sha256\n header.s=20251104 header.b=fO3m9a+t;\n\tdkim-atps=neutral", "legolas.ozlabs.org;\n spf=pass (sender SPF authorized) smtp.mailfrom=nongnu.org\n (client-ip=209.51.188.17; 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charset=\"utf-8\"", "Content-Transfer-Encoding": "7bit", "Message-Id": "<20260504-feat-mte4-v5-14-232a648e63c6@gmail.com>", "References": "<20260504-feat-mte4-v5-0-232a648e63c6@gmail.com>", "In-Reply-To": "<20260504-feat-mte4-v5-0-232a648e63c6@gmail.com>", "To": "qemu-devel@nongnu.org", "Cc": "Peter Maydell <peter.maydell@linaro.org>,\n Gustavo Romero <gustavo.romero@linaro.org>,\n Richard Henderson <richard.henderson@linaro.org>, qemu-arm@nongnu.org,\n Laurent Vivier <laurent@vivier.eu>,\n Gabriel Brookman <brookmangabriel@gmail.com>, Helge Deller <deller@gmx.de>,\n Pierrick Bouvier <pierrick.bouvier@oss.qualcomm.com>,\n Pierrick Bouvier <pierrick.bouvier@oss.qualcomm.com>", "X-Mailer": "b4 0.15.2", "X-Developer-Signature": "v=1; a=ed25519-sha256; t=1777909867; l=2355;\n i=brookmangabriel@gmail.com; s=20251009; h=from:subject:message-id;\n bh=t9UKuOxOMkff21yBSwiqqFvgFWXDPNIeJTAexYT0IVc=;\n b=VvH0Dw+EA0dM1al44fe87BzYHM1c7TEalnO+8csbUNT90B88V4p/ES2x2ERnZPMq6TF4JfASw\n 4U72rhH18ycB7pUM2h8Mv4ya+L96lnMn5ruW5B0W37hmyCyGx2Ir9Zm", "X-Developer-Key": "i=brookmangabriel@gmail.com; a=ed25519;\n pk=m9TtPDal6WzoHNnQiHHKf8dTrv3DUCPUUTujuo8vNrw=", "Received-SPF": "pass client-ip=2607:f8b0:4864:20::729;\n envelope-from=brookmangabriel@gmail.com; helo=mail-qk1-x729.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,\n DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, FREEMAIL_FROM=0.001,\n RCVD_IN_DNSWL_NONE=-0.0001, SPF_HELO_NONE=0.001,\n 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 <qemu-devel.nongnu.org>", "List-Unsubscribe": "<https://lists.nongnu.org/mailman/options/qemu-devel>,\n <mailto:qemu-devel-request@nongnu.org?subject=unsubscribe>", "List-Archive": "<https://lists.nongnu.org/archive/html/qemu-devel>", "List-Post": "<mailto:qemu-devel@nongnu.org>", "List-Help": "<mailto:qemu-devel-request@nongnu.org?subject=help>", "List-Subscribe": "<https://lists.nongnu.org/mailman/listinfo/qemu-devel>,\n <mailto:qemu-devel-request@nongnu.org?subject=subscribe>", "Errors-To": "qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org", "Sender": "qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org" }, "content": "This functionality was previously enabled but not advertised or tested.\nThis commit adds a new test, mte-9, that tests the code for proper\nfull-address reporting. FEAT_MTE_TAGGED_FAR requires that FAR_ELx\nreport the full logical address, including tag bits.\n\nSigned-off-by: Gabriel Brookman <brookmangabriel@gmail.com>\nReviewed-by: Richard Henderson <richard.henderson@linaro.org>\n---\n tests/tcg/aarch64/Makefile.target | 2 +-\n tests/tcg/aarch64/mte-9.c | 48 +++++++++++++++++++++++++++++++++++++++\n 2 files changed, 49 insertions(+), 1 deletion(-)", "diff": "diff --git a/tests/tcg/aarch64/Makefile.target b/tests/tcg/aarch64/Makefile.target\nindex 9fa8687453..b491cfb5e1 100644\n--- a/tests/tcg/aarch64/Makefile.target\n+++ b/tests/tcg/aarch64/Makefile.target\n@@ -64,7 +64,7 @@ AARCH64_TESTS += bti-2\n \n # MTE Tests\n ifneq ($(CROSS_CC_HAS_ARMV8_MTE),)\n-AARCH64_TESTS += mte-1 mte-2 mte-3 mte-4 mte-5 mte-6 mte-7 mte-8\n+AARCH64_TESTS += mte-1 mte-2 mte-3 mte-4 mte-5 mte-6 mte-7 mte-8 mte-9\n mte-%: CFLAGS += $(CROSS_CC_HAS_ARMV8_MTE)\n endif\n \ndiff --git a/tests/tcg/aarch64/mte-9.c b/tests/tcg/aarch64/mte-9.c\nnew file mode 100644\nindex 0000000000..9626a90c13\n--- /dev/null\n+++ b/tests/tcg/aarch64/mte-9.c\n@@ -0,0 +1,48 @@\n+/*\n+ * Memory tagging, full-address reporting.\n+ *\n+ * Copyright (c) 2021 Linaro Ltd\n+ * SPDX-License-Identifier: GPL-2.0-or-later\n+ */\n+\n+#include \"mte.h\"\n+\n+static void *faulting_ptr;\n+\n+void pass(int sig, siginfo_t *info, void *uc)\n+{\n+ assert(faulting_ptr == info->si_addr);\n+ exit(0);\n+}\n+\n+int main(int ac, char **av)\n+{\n+ struct sigaction sa;\n+ int *p0, *p1, *p2;\n+ long excl = 1;\n+\n+ enable_mte(PR_MTE_TCF_SYNC);\n+ p0 = alloc_mte_mem(sizeof(*p0));\n+\n+ /* Create two differently tagged pointers. */\n+ asm(\"irg %0,%1,%2\" : \"=r\"(p1) : \"r\"(p0), \"r\"(excl));\n+ asm(\"gmi %0,%1,%0\" : \"+r\"(excl) : \"r\" (p1));\n+ assert(excl != 1);\n+ asm(\"irg %0,%1,%2\" : \"=r\"(p2) : \"r\"(p0), \"r\"(excl));\n+ assert(p1 != p2);\n+\n+ /* Store the tag from the first pointer. */\n+ asm(\"stg %0, [%0]\" : : \"r\"(p1));\n+\n+ *p1 = 0;\n+\n+ memset(&sa, 0, sizeof(sa));\n+ sa.sa_sigaction = pass;\n+ sa.sa_flags = SA_SIGINFO;\n+ sigaction(SIGSEGV, &sa, NULL);\n+\n+ faulting_ptr = p2;\n+ *p2 = 0;\n+\n+ abort();\n+}\n", "prefixes": [ "v5", "14/15" ] }