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[128.178.122.21]) by smtp.gmail.com with ESMTPSA id 4fb4d7f45d1cf-57cb741e884sm7745066a12.63.2024.06.18.07.40.19 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 18 Jun 2024 07:40:19 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20230601; t=1718721620; x=1719326420; darn=nongnu.org; h=content-transfer-encoding:mime-version:message-id:date:subject:cc :to:from:from:to:cc:subject:date:message-id:reply-to; bh=uvBxpZFONpTNQR9KQhhThzpJaQH2JB8uCMKlkJSlgzk=; b=is1tdFPbjoURFcZRyUSfPKmJPzAeKieEJqHenx2nFQK8NSrSDtU/Oktil+huNN2UWE tsP/uOkGBgFDiksgY9b/XQnnFOPKQJk/Fw+axY0Z+AKLw40srsyf+A6NpJ5jrKlITYKV wFIuO6zWBg5EqkydeZ9uBi6tu0Lr+HqmyLl1X5FQYTSCPAjVD3orEqgP3rvBVlmtqBa6 wrxYet3J7QX6V1Z56kOqaUDb/YbkTiNghgunubN0N5jT8if/n/HKM2MiFEWOMJu3j8Ml 51uSe9qb4NA+Bi1RelIl7XA9yRVh2bFrT7uh2WuAL1BTJWfw5PonD5Za04PvnChrOmsq GBUA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1718721620; x=1719326420; h=content-transfer-encoding:mime-version:message-id:date:subject:cc :to:from:x-gm-message-state:from:to:cc:subject:date:message-id :reply-to; bh=uvBxpZFONpTNQR9KQhhThzpJaQH2JB8uCMKlkJSlgzk=; b=gxOKNrczHfRx+TUqbK0FTgpPk6crMOXhr/IZxPp/l6igslseWFGmoZfn96CNtVbIFo BatCf47Mfz8TFw5T+KtxMnCNYRKBHkfNmGp4MePMs04UhKIpT/K5kAffijhyVGz+OKBO /815xjEG6zkQudy+xOQu8iAovMd6v08+URp/vQaA5ozS905z/tcILHl4PCRY+DXCcxHb k+kFU11MAuwz85bcqfgR/H8OA35hcYGI2aECJDlrpzkuqSHDFfcujPs9tFGBbl0AwK0J 23qltH00QGwd+RN+ZWF3dSg2IFQ+c0t7TTDH/Xz60D+2mpyO2f5dSJfR6aNdKcE9+0l+ pP8Q== X-Forwarded-Encrypted: i=1; AJvYcCVi4iIu8LE3M7rdIT2TDWilDaW6irXNP9T2+za6S6Fjn7XnqBJNpgoHWONqr5yFCFV/89k/tMgu0Zo04ipva7bwi35ezIDMfet+u4lOA9TCdOz6uYdi/+dd9Ow= X-Gm-Message-State: AOJu0Yw/zRzHUiriGOmCHjjImK2+RouUGp87YGf/d+4S/dTQlAjL8plB zRNvG/TgjKqy2a2kN3qr7CAG0lBPX0txwcm38XoRKU4Hf5W6Z0c= X-Google-Smtp-Source: AGHT+IEKiy5Tc5VgwHMztvE6V1NuJuApHM0FcpgLEEuXbCVm4nvJujCZKSFtnrn6yfJJXHaWYjLXqA== X-Received: by 2002:a17:907:c00f:b0:a6f:6721:b06d with SMTP id a640c23a62f3a-a6f6721b860mr943923566b.24.1718721619942; Tue, 18 Jun 2024 07:40:19 -0700 (PDT) From: Zheyu Ma To: Peter Maydell Cc: Zheyu Ma , qemu-arm@nongnu.org, qemu-devel@nongnu.org Subject: [PATCH] hw/timer/a9gtimer: Handle QTest mode in a9_gtimer_get_current_cpu Date: Tue, 18 Jun 2024 16:40:09 +0200 Message-Id: <20240618144009.3137806-1-zheyuma97@gmail.com> X-Mailer: git-send-email 2.34.1 MIME-Version: 1.0 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::634; envelope-from=zheyuma97@gmail.com; helo=mail-ej1-x634.google.com X-Spam_score_int: -18 X-Spam_score: -1.9 X-Spam_bar: - X-Spam_report: (-1.9 / 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, FREEMAIL_ENVFROM_END_DIGIT=0.25, FREEMAIL_FROM=0.001, RCVD_IN_DNSWL_NONE=-0.0001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 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 @gmail.com) X-ZM-MESSAGEID: 1718721651675100001 Content-Type: text/plain; charset="utf-8" This commit updates the a9_gtimer_get_current_cpu() function to handle cases where QTest is enabled. When QTest is used, it returns 0 instead of dereferencing the current_cpu, which can be NULL. This prevents the program from crashing during QTest runs. Reproducer: cat << EOF | qemu-system-aarch64 -display \ none -machine accel=3Dqtest, -m 512M -machine npcm750-evb -qtest stdio writel 0xf03fe20c 0x26d7468c EOF Signed-off-by: Zheyu Ma Reviewed-by: Philippe Mathieu-Daud=C3=A9 --- hw/timer/a9gtimer.c | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/hw/timer/a9gtimer.c b/hw/timer/a9gtimer.c index a2ac5bdfb9..64d80cdf6a 100644 --- a/hw/timer/a9gtimer.c +++ b/hw/timer/a9gtimer.c @@ -32,6 +32,7 @@ #include "qemu/log.h" #include "qemu/module.h" #include "hw/core/cpu.h" +#include "sysemu/qtest.h" =20 #ifndef A9_GTIMER_ERR_DEBUG #define A9_GTIMER_ERR_DEBUG 0 @@ -48,6 +49,10 @@ =20 static inline int a9_gtimer_get_current_cpu(A9GTimerState *s) { + if (qtest_enabled()) { + return 0; + } + if (current_cpu->cpu_index >=3D s->num_cpu) { hw_error("a9gtimer: num-cpu %d but this cpu is %d!\n", s->num_cpu, current_cpu->cpu_index); --=20 2.34.1