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[216.71.219.44]) by smtp.gmail.com with ESMTPSA id 5a478bee46e88-3339bdf26c5sm942981eec.27.2026.09.03.12.36.56 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Thu, 03 Sep 2026 12:36:57 -0700 (PDT) Message-ID: Date: Thu, 3 Sep 2026 12:36:56 -0700 MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH 3/8] target/hexagon: kick vCPU when re-asserting interrupts To: Brian Cain , qemu-devel@nongnu.org Cc: =?UTF-8?Q?Philippe_Mathieu-Daud=C3=A9?= References: <20260903185622.3234171-1-brian.cain@oss.qualcomm.com> <20260903185622.3234171-4-brian.cain@oss.qualcomm.com> From: Pierrick Bouvier Content-Language: en-US In-Reply-To: <20260903185622.3234171-4-brian.cain@oss.qualcomm.com> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit X-Proofpoint-ORIG-GUID: 7tidL8uc1wgfRx5OdupVkFqoTGuWaWbg X-Proofpoint-Spam-Info: AW1haW4tMjYwOTAzMDE3MCBTYWx0ZWRfX/yRNkFFAZlnM dLJnATTyrjN28xp1eOckUv3MFFCcfhb5Ft25pbPFFBo77SgMrRKw5XILFr5/TYh7YI/v+tGeb/x 2Y5CItsi8ZGwZ5+nnY4e0738NJEmfyI= X-Proofpoint-GUID: 7tidL8uc1wgfRx5OdupVkFqoTGuWaWbg X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYwOTAzMDE3MCBTYWx0ZWRfXw4zF2sAziL9g rQaNdlvo2yqypNNjB+Z4BbmHg/zueFsQg+QUOd+cxW4JBq1UIed6WfjPbT47U6YT1WZNTyh6RGY D8md7BJy62U8X4NDOd6XJ31kbWlz55vh7/2lIasS2lL6xODuIvOP2I1nryxLrgav4YCs6Mto85a YrQ9CdSMneQRcn+GBB5r+RIIptMSkj+R1eqKcVYC+t+O2DHrHwu9fDL8xy7oWyCHQDN89NQStV0 iOJq6OpR+a4es0UAjWdOUIjpuTrulkuWf6HX6gR8wB6BxjN303MlWXIzYeZpS0NFuikXc92no/9 6XeLkqU2NcMWBY+pGRR+fBNIPXKnL6sC4P3OhPWXBGe9FUhtVwcv6k/nHzx0H5GSGChg3rsOLLR K28EY163VtNVnQN1AfiDFAklf3lbvkU0bjpGBgWiDgHYERO6SqxXeYn3aivEJmizkMRF7vB8O/Q Ch5atPf8w7ejL84JYoQ== X-Authority-Analysis: v=2.4 cv=X9Zi7mTe c=1 sm=1 tr=0 ts=6a99cc5a cx=c_pps a=RP+M6JBNLl+fLTcSJhASfg==:117 a=iLqgmErQAxjCjdq5jj1Aqg==:17 a=IkcTkHD0fZMA:10 a=VdqzKS8jKosA:10 a=s4-Qcg_JpJYA:10 a=VkNPw1HP01LnGYTKEx00:22 a=u7WPNUs3qKkmUXheDGA7:22 a=yOCtJkima9RkubShWh1s:22 a=EUspDBNiAAAA:8 a=b6kYv1u0gy0l810oL3gA:9 a=QEXdDO2ut3YA:10 a=ZXulRonScM0A:10 a=iS9zxrgQBfv6-_F4QbHw:22 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=2026-09-03_05,2026-09-03_01,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 phishscore=0 malwarescore=0 bulkscore=0 clxscore=1015 lowpriorityscore=0 impostorscore=0 suspectscore=0 priorityscore=1501 spamscore=0 adultscore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2606150000 definitions=main-2609030170 Received-SPF: pass client-ip=205.220.168.131; envelope-from=pierrick.bouvier@oss.qualcomm.com; helo=mx0a-0031df01.pphosted.com X-Spam_score_int: -27 X-Spam_score: -2.8 X-Spam_bar: -- X-Spam_report: (-2.8 / 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 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 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 On 9/3/2026 11:56 AM, Brian Cain wrote: > hex_interrupt_update() used cpu_resume() to make a halted vCPU notice a > newly pending interrupt. cpu_resume() is meant for a vCPU stopped by the > vm-state machinery: besides kicking the thread it clears cpu->stop and > cpu->stopped, and resets exception_index to -1. Clearing the stop flags > can undo a pause requested via the monitor or by migration, and resetting > exception_index discards an exception the vCPU had already latched. > > Only the kick is wanted here, so call qemu_cpu_kick() directly. > > Signed-off-by: Brian Cain > --- > target/hexagon/hex_interrupts.c | 2 +- > 1 file changed, 1 insertion(+), 1 deletion(-) > Reviewed-by: Pierrick Bouvier