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GET /api/1.2/patches/2226141/?format=api
{ "id": 2226141, "url": "http://patchwork.ozlabs.org/api/1.2/patches/2226141/?format=api", "web_url": "http://patchwork.ozlabs.org/project/qemu-devel/patch/20260422101043.1234229-16-alex.bennee@linaro.org/", "project": { "id": 14, "url": "http://patchwork.ozlabs.org/api/1.2/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": "", "list_archive_url": "", "list_archive_url_format": "", "commit_url_format": "" }, "msgid": "<20260422101043.1234229-16-alex.bennee@linaro.org>", "list_archive_url": null, "date": "2026-04-22T10:10:26", "name": "[v2,15/31] target/arm: migrate check_hcr_el2_trap to use syndrome helper", "commit_ref": null, "pull_url": null, "state": "new", "archived": false, "hash": "f447c5afc1b31b900a0c903061195b9411eaa158", "submitter": { "id": 39532, "url": "http://patchwork.ozlabs.org/api/1.2/people/39532/?format=api", "name": "Alex Bennée", "email": "alex.bennee@linaro.org" }, "delegate": null, "mbox": "http://patchwork.ozlabs.org/project/qemu-devel/patch/20260422101043.1234229-16-alex.bennee@linaro.org/mbox/", "series": [ { "id": 500957, "url": "http://patchwork.ozlabs.org/api/1.2/series/500957/?format=api", "web_url": "http://patchwork.ozlabs.org/project/qemu-devel/list/?series=500957", "date": "2026-04-22T10:10:11", "name": "target/arm: fully model WFxT instructions for A-profile", "version": 2, "mbox": "http://patchwork.ozlabs.org/series/500957/mbox/" } ], "comments": "http://patchwork.ozlabs.org/api/patches/2226141/comments/", "check": "pending", "checks": "http://patchwork.ozlabs.org/api/patches/2226141/checks/", "tags": {}, "related": [], "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=linaro.org header.i=@linaro.org header.a=rsa-sha256\n header.s=google header.b=w0H4QA3J;\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": "8bit", "Received-SPF": "pass client-ip=2a00:1450:4864:20::32b;\n envelope-from=alex.bennee@linaro.org; helo=mail-wm1-x32b.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,\n RCVD_IN_DNSWL_NONE=-0.0001, SPF_HELO_NONE=0.001,\n SPF_PASS=-0.001 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": "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": "It shares the same COPROC_ISS encoding as the other CP traps although\nnot all the fields are used.\n\nReviewed-by: Richard Henderson <richard.henderson@linaro.org>\nSigned-off-by: Alex Bennée <alex.bennee@linaro.org>\n---\n target/arm/syndrome.h | 16 ++++++++++++++++\n target/arm/tcg/vfp_helper.c | 5 +----\n 2 files changed, 17 insertions(+), 4 deletions(-)", "diff": "diff --git a/target/arm/syndrome.h b/target/arm/syndrome.h\nindex 841fd3292b8..53137394e28 100644\n--- a/target/arm/syndrome.h\n+++ b/target/arm/syndrome.h\n@@ -251,6 +251,22 @@ FIELD(COPROC_ISS, OP2, 17, 3)\n FIELD(COPROC_ISS, COND, 20, 4)\n FIELD(COPROC_ISS, CV, 24, 1)\n \n+static inline uint32_t syn_cp10_rt_trap(int cv, int cond, int opc1,\n+ int crn, int rt, int isread)\n+{\n+ uint32_t res = syn_set_ec(0, EC_FPIDTRAP);\n+ res = FIELD_DP32(res, SYNDROME, IL, 1);\n+\n+ res = FIELD_DP32(res, COPROC_ISS, CV, cv);\n+ res = FIELD_DP32(res, COPROC_ISS, COND, cond);\n+ res = FIELD_DP32(res, COPROC_ISS, OP1, opc1);\n+ res = FIELD_DP32(res, COPROC_ISS, CRN, crn);\n+ res = FIELD_DP32(res, COPROC_ISS, RT, rt);\n+ res = FIELD_DP32(res, COPROC_ISS, ISREAD, isread);\n+\n+ return res;\n+}\n+\n static inline uint32_t syn_cp14_rt_trap(int cv, int cond, int opc1, int opc2,\n int crn, int crm, int rt, int isread,\n bool is_16bit)\ndiff --git a/target/arm/tcg/vfp_helper.c b/target/arm/tcg/vfp_helper.c\nindex 45f2eb0930f..e692bc568bd 100644\n--- a/target/arm/tcg/vfp_helper.c\n+++ b/target/arm/tcg/vfp_helper.c\n@@ -1359,10 +1359,7 @@ void HELPER(check_hcr_el2_trap)(CPUARMState *env, uint32_t rt, uint32_t reg)\n g_assert_not_reached();\n }\n \n- syndrome = ((EC_FPIDTRAP << ARM_EL_EC_SHIFT)\n- | ARM_EL_IL\n- | (1 << 24) | (0xe << 20) | (7 << 14)\n- | (reg << 10) | (rt << 5) | 1);\n+ syndrome = syn_cp10_rt_trap(1, 0xe, 7, reg, rt, 1);\n \n raise_exception(env, EXCP_HYP_TRAP, syndrome, 2);\n }\n", "prefixes": [ "v2", "15/31" ] }