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[88.187.86.199]) by smtp.gmail.com with ESMTPSA id ffacd0b85a97d-48e2581f0bdsm2398029f8f.19.2026.10.20.20.14.23 (version=TLS1_3 cipher=TLS_CHACHA20_POLY1305_SHA256 bits=256/256); Tue, 20 Oct 2026 20:14:24 -0700 (PDT) From: =?UTF-8?q?Philippe=20Mathieu-Daud=C3=A9?= To: qemu-devel@nongnu.org Cc: qemu-ppc@nongnu.org, qemu-riscv@nongnu.org, qemu-arm@nongnu.org, qemu-s390x@nongnu.org, Pierrick Bouvier Subject: [PATCH v2 02/33] cpus: Add helper to log raised exceptions with '-d int' Date: Wed, 21 Oct 2026 05:13:35 +0200 Message-ID: <20261021031407.24862-3-philmd@oss.qualcomm.com> X-Mailer: git-send-email 2.55.0 In-Reply-To: <20261021031407.24862-1-philmd@oss.qualcomm.com> References: <20261021031407.24862-1-philmd@oss.qualcomm.com> X-Archived-By: MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit X-Proofpoint-GUID: YRgPQkWFROOb_jVJ7Z3BAMvVQ1e4Vb1z X-Proofpoint-ORIG-GUID: YRgPQkWFROOb_jVJ7Z3BAMvVQ1e4Vb1z X-Authority-Analysis: v=2.4 cv=EuJHPicA c=1 sm=1 tr=0 ts=6ad82e12 cx=c_pps a=HLyN3IcIa5EE8TELMZ618Q==:117 a=4s3hRJSeHn4rkQlkrse1kQ==:17 a=IkcTkHD0fZMA:10 a=660iZSQnnn4A:10 a=M51BFTxLslgA:10 a=s4-Qcg_JpJYA:10 a=VkNPw1HP01LnGYTKEx00:22 a=u7WPNUs3qKkmUXheDGA7:22 a=yOCtJkima9RkubShWh1s:22 a=EUspDBNiAAAA:8 a=0xCBr3yVtZFRf-pbA1IA:9 a=3ZKOabzyN94A:10 a=QEXdDO2ut3YA:10 a=bTQJ7kPSJx9SKPbeHEYW:22 X-Proofpoint-Spam-Info: AW1haW4tMjYxMDIxMDAxMiBTYWx0ZWRfX2OWzJCKIRcYM eVO8c8Dh+J+0wzQQTNS9pkppzLYPdNqR9fIKXFdTipWMK4vNLLU6NHY0vN+J9yuQDgG1Q29P2KU BUBtDCkenEA1Mbush05kG3ArRVcZYcg= X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYxMDIxMDAxMiBTYWx0ZWRfX4II9QuJC5UJF GlwHbaUXhHyeXBF9Ym5CmQpzAkPXzb3oIJs5Yrf+LeVsRYPb7nY/8xk1/L3s9+cwTBFotYvtoje DgLgk90mF9YUaxL6AJ9nXUsAa885UXPtS3Sc0k00WqVryUBCD0qxZKDA6XlDvLsSFDPV74Z9VPM HTq8z2msv9P8xtyuEISG/xMd7Kp44ioYKXW60muv7bwrTc7H4apLM+wFdsX5EupqwzRBsIwNHwp TXZZk6DcYEyI5TuwuahYFMBDBXDYjsZ4/aEb8nhTRVqUTzxe+6CJfFON8W7AUhm63zvmj4vQOpX /7amANu+E+WRQ0ELficehSQiaL1c6BFbOG03kLHlPRDfjON9sC4aIV42tELn6tMPJjB3hbplrNW SROJPNwbHxVxZLOp6aNVvbonPKQ3Jfzdq3YCspds1KjVGm1Y3KI6wM27Nu7R/oBE03rAv3kBN+6 FoezTQUQIyLALfOA23Q== X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1176,Hydra:6.1.134,FMLib:17.12.100.49 definitions=2026-10-21_01,2026-10-19_02,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 malwarescore=0 impostorscore=0 clxscore=1015 spamscore=0 adultscore=0 priorityscore=1501 lowpriorityscore=0 suspectscore=0 phishscore=0 bulkscore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2610190000 definitions=main-2610210012 Received-SPF: pass client-ip=205.220.168.131; envelope-from=philmd@oss.qualcomm.com; helo=mx0a-0031df01.pphosted.com X-Spam_score_int: -2 X-Spam_score: -0.3 X-Spam_bar: / X-Spam_report: (-0.3 / 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_LOW=-0.7, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, SUSPICIOUS_RECIPS=2.51 autolearn=no autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-arm@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Archive: List-Post: List-Help: List-Subscribe: , Sender: qemu-arm-bounces+qemu-arm=archiver.kernel.org@nongnu.org X-Spam-Status: No, score=-18.8 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_CR_TRAILER,INCLUDES_PATCH,MAILING_LIST_MULTI,SPF_HELO_PASS, SPF_PASS,USER_AGENT_GIT autolearn=unavailable autolearn_force=no version=4.0.1 X-Spam-Checker-Version: SpamAssassin 4.0.1 (2024-03-26) on aws-us-west-2-korg-listserv-alma10-1 Add log_raise_exception(), a common helper cpu_loop_*() can call to log a raised exception when '-d int' is used, and qemu_excp_name() to resolve QEMU-internal exceptions to names. Use it in cpu_loop_exit_atomic() to log the EXCP_ATOMIC reason. Signed-off-by: Philippe Mathieu-Daudé --- accel/tcg/cpu-exec-common.c | 32 ++++++++++++++++++++++++++++++++ 1 file changed, 32 insertions(+) diff --git a/accel/tcg/cpu-exec-common.c b/accel/tcg/cpu-exec-common.c index 68077c8fd9d..2ac8380d0bb 100644 --- a/accel/tcg/cpu-exec-common.c +++ b/accel/tcg/cpu-exec-common.c @@ -89,6 +89,37 @@ void tcg_update_all_cflags(void) } } +#define EXCP_QEMU_INTERNAL 0x10000 + +static const char *qemu_excp_name(int excp) +{ + static const char *excp_name[] = { + [EXCP_INTERRUPT - EXCP_QEMU_INTERNAL] = "async interruption", + [EXCP_HLT - EXCP_QEMU_INTERNAL] = "hlt instruction", + [EXCP_DEBUG - EXCP_QEMU_INTERNAL] = "debug", + [EXCP_HALTED - EXCP_QEMU_INTERNAL] = "halted", + [EXCP_YIELD - EXCP_QEMU_INTERNAL] = "yield", + [EXCP_ATOMIC - EXCP_QEMU_INTERNAL] = "emulate atomic", + }; + assert(excp >= EXCP_QEMU_INTERNAL); + excp -= EXCP_QEMU_INTERNAL; + if ((excp < ARRAY_SIZE(excp_name)) && excp_name[excp]) { + return excp_name[excp]; + } + return "undocumented"; +} + +static void log_raise_exception(const CPUState *cpu, int excp) +{ + if (!qemu_loglevel_mask(CPU_LOG_INT)) { + return; + } + if (excp >= EXCP_QEMU_INTERNAL) { + qemu_log_mask(CPU_LOG_INT, "raise exception: 0x%x (internal: %s)\n", + excp, qemu_excp_name(excp)); + } +} + /* exit the current TB, but without causing any exception to be raised */ void cpu_loop_exit_noexc(CPUState *cpu) { @@ -118,5 +149,6 @@ void cpu_loop_exit_atomic(CPUState *cpu, uintptr_t pc) /* Prevent looping if already executing in a serial context. */ g_assert(!cpu_in_serial_context(cpu)); cpu->exception_index = EXCP_ATOMIC; + log_raise_exception(cpu, EXCP_ATOMIC); cpu_loop_exit_restore(cpu, pc); } -- 2.55.0