From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 03C70D32D9C for ; Fri, 5 Dec 2025 15:11:45 +0000 (UTC) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1vRXSs-0003eu-7q; Fri, 05 Dec 2025 10:11:22 -0500 Received: from eggs.gnu.org ([2001:470:142:3::10]) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1vRXSq-0003cw-Qm for qemu-devel@nongnu.org; Fri, 05 Dec 2025 10:11:20 -0500 Received: from mail-wm1-x336.google.com ([2a00:1450:4864:20::336]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1vRXSo-0001Rj-JE for qemu-devel@nongnu.org; Fri, 05 Dec 2025 10:11:20 -0500 Received: by mail-wm1-x336.google.com with SMTP id 5b1f17b1804b1-4779ce2a624so27397195e9.2 for ; Fri, 05 Dec 2025 07:11:18 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; t=1764947477; x=1765552277; 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=lnP94QzJYdcIFYVLamZVmYmkVOkYawK77F+QBWnmxK8=; b=y7nbS9u77uVWp3ekW62zmEIVqZWlCkm5CRkDl58pc6tz+PNrFRlgg/rKs2RBaMXlFy 3MoiG61ng1w+H0PghmzP6oSBLCeNJAbKsEPtBNEzA00G5IZ6UEVYp1XnSf5MKzkqBDdX IIxqOn2ZTf6wlh+RLWdHZfWopdaht4kP4A0gEAETlulatnPX1HZDmajSHr1h8pt+T25i HgXIfVT960DATuDp7qfx2fuY3+cxYfxzja+6u1jSwviG/8JD0YvZJJT4Q2jbIhxRgGGQ EdJw/mpTKyE0D1LXLZ2Pp/xvabIWjkpgU/TQVlk4Auz4Lq89qqmB0DuZr6zGdM2lJwfN Jffw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1764947477; x=1765552277; h=content-transfer-encoding:mime-version:message-id:date:subject:cc :to:from:x-gm-gg:x-gm-message-state:from:to:cc:subject:date :message-id:reply-to; bh=lnP94QzJYdcIFYVLamZVmYmkVOkYawK77F+QBWnmxK8=; b=KvjopxZv5AWg4ngTY70ihDzlk6DQwAEF6yKIy2NVwZ8bIVlh69xEdgwHfILd5UhH79 AA1zCTTgXxIZ9h/DwTu1FPyk1TZb3StLEzN9gRWt/HqUxGGO0RrgaSHHDf/jX4IUv4dz hzPEb8tqqWziXf44Hj+cgq3wpkwN7NpY7YTaaFQ8bdvK4LnX7XScrABbzdyhalv8EqsE QhooL4MtxOIlRWJAxR8Qilw+rGC+B/79HDiD0QSKKFmU//75/AXZrUOoVThA3yqyNwxR 7A6H0ZFMdqT2yMkzfUbxlOArwSHl9JXJ+scXnr27cCDBRirzanNIWdW6BLDS71IqDh74 L07w== X-Gm-Message-State: AOJu0YwdMwZTTYTVfQTlD3X/NtQedUzP6vuK67UcYuAyu3Qvsc084nmu 3QkKvj9RmWMAtfT0Zy6XHb4f8IMeGnH0XjvP4j3loFeTGRx3Bl59YN+wuspJMbDxaUvJNrKgXiu WcCNu X-Gm-Gg: ASbGncuMTFIhulKNxqYdWLQzzQOldOicNY/FUHfM8yaxut4+5a5tL0RzinUxZYACHnz Yga4bYKNaxe7ZEgULVsPCx8K1d/7pZyvqk9vxKSf3jhZq0h4GXDcdVkDZSTJzfhrJy9g56wifO4 7uUVW8b/tDdBfZeMTLKWw3FEthiIIQd3MeFXT7vCXI6yHdCu3fNTd/FuL2lnwxMoxIGQP8w4VW3 8U34REeyQ3yUCMaLYUSXo965rC3V2XoAnrEeE52cZuKh2IWSBMFVetMahH/QJx7ApFA+2ry8ubl QfU8adny8VcSWnV9GHfVO+pPJZjgjBjsXXbRMAUjZt7j7tY2VTKOVTeC0QaKFvZhCq4GrJtfZ6V 5fHvr/e9bIQwTuBjl+yCDkMRvTSD4eWuprlg9yKMgej0U8LrEm/yrc9IJYiCwns42y/Q2h8o+CA pk+h3yPX+a6Wk= X-Google-Smtp-Source: AGHT+IHrxzncpq3CW/62XHFieacCMbuk0+0KP2h8agiE66SoYcxvX4ST1TBTglUXgS1ET+1INfImNg== X-Received: by 2002:a05:600c:4507:b0:477:6374:6347 with SMTP id 5b1f17b1804b1-4792f38659fmr63409225e9.22.1764947477022; Fri, 05 Dec 2025 07:11:17 -0800 (PST) Received: from draig.lan ([185.126.160.19]) by smtp.gmail.com with ESMTPSA id 5b1f17b1804b1-4792b0d5e55sm95237475e9.2.2025.12.05.07.11.15 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 05 Dec 2025 07:11:16 -0800 (PST) Received: from draig.lan (localhost [IPv6:::1]) by draig.lan (Postfix) with ESMTP id 5B88A5F7F6; Fri, 05 Dec 2025 15:11:15 +0000 (GMT) From: =?UTF-8?q?Alex=20Benn=C3=A9e?= To: qemu-devel@nongnu.org Cc: Mads Ynddal , Peter Maydell , qemu-arm@nongnu.org, Alexander Graf , =?UTF-8?q?Alex=20Benn=C3=A9e?= Subject: [PATCH 0/2] target/arm: fix for hvf regression in v10.2-rc1 (#3228) Date: Fri, 5 Dec 2025 15:11:13 +0000 Message-ID: <20251205151115.2035930-1-alex.bennee@linaro.org> X-Mailer: git-send-email 2.47.3 MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 8bit Received-SPF: pass client-ip=2a00:1450:4864:20::336; envelope-from=alex.bennee@linaro.org; helo=mail-wm1-x336.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, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, SPF_HELO_NONE=0.001, 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: 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 Although bisecting indicated 93ac765076a (target/arm/hvf: Keep calling hv_vcpu_run() in loop) was the culprit I noticed that using gdbstub would get further in the run due to the enforced syncing from being debugged. As far as I can tell the kernel got confused by contradictory responses from PSCI while booting up and then never recovered. Please test. Alex Alex Bennée (2): Revert "target/arm: Re-use arm_is_psci_call() in HVF" target/arm: ensure PSCI register updates are flushed target/arm/hvf/hvf.c | 10 +++++++--- 1 file changed, 7 insertions(+), 3 deletions(-) -- 2.47.3