From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-pj1-f73.google.com (mail-pj1-f73.google.com [209.85.216.73]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 121902A1A4 for ; Thu, 20 Mar 2025 17:18:16 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.216.73 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1742491099; cv=none; b=CoeBIy90OHng8m4lCDRzUQcVFlJpBTi2fA6uCNz9xgrP5lnS5y6fqWD71el2t5PiRtY2I9uT9/z+mAiNJbjdAEPLkd/7NLbeKBuaUlYYIdqkSpQJobf1T0psGpULLTOcOKYfH6oJmeUWfXSynuzMLe9PWM3ruspmK0OrlNkWtGc= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1742491099; c=relaxed/simple; bh=88p1w7uEcFSCHYKOCDuBHPZGg/x3AAPkfIOOrr6qmRE=; h=Date:In-Reply-To:Mime-Version:References:Message-ID:Subject:From: To:Cc:Content-Type; b=f4ZJc21TH1rtQHGN4ZzjDawbA2VXlxHZyPlLaLn83Ru/V3To0E++G7YoK0jiE8qkUcEprGSclNxkoAgxP/k8TpRgjNNsDrJEbgJT/8wgnhUMNS7nAq57Elltc4gNRr+WtUAI5zFXX8UyCoUS4uUBLaVAN/GrkUgKCHS4M4BO2Ho= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=google.com; spf=pass smtp.mailfrom=flex--changyuanl.bounces.google.com; dkim=pass (2048-bit key) header.d=google.com header.i=@google.com header.b=YHgsKRfP; arc=none smtp.client-ip=209.85.216.73 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=google.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=flex--changyuanl.bounces.google.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=google.com header.i=@google.com header.b="YHgsKRfP" Received: by mail-pj1-f73.google.com with SMTP id 98e67ed59e1d1-2ff799be8f5so1727985a91.1 for ; Thu, 20 Mar 2025 10:18:16 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20230601; t=1742491096; x=1743095896; darn=vger.kernel.org; h=cc:to:from:subject:message-id:references:mime-version:in-reply-to :date:from:to:cc:subject:date:message-id:reply-to; bh=88p1w7uEcFSCHYKOCDuBHPZGg/x3AAPkfIOOrr6qmRE=; b=YHgsKRfPf2/nBiD260ANuo5qn3IAPdiMNnoxnuLCprv9Owqxk5Kkyo2SoDWa0RKRol iYMIEdX4+eG2ZvmRhzvtBhrl1gmZYGhSpNf/vEAUhBK0Tw7zHng1MqpbWWQ0gFfi6pxi /6OJkbLTti8JDeCXHBxE836tbZjU8J1WurYsSEKnCUV0dGmm1dVrsuvEAQw/0gsT1rHz xrqNSOY/MDRaul1Gi2uPBL8SH+zeyMa1J8KqHa1PZTKTN8WJTaIwUXHk4Wlz++7DyqQD 1YSBxXLUNKdZdpp4Vm319W5pi7CadEuoygSUsLKjeq2reBB4BwSGpKokHYshcLLJ2fzE jeXQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1742491096; x=1743095896; h=cc:to:from:subject:message-id:references:mime-version:in-reply-to :date:x-gm-message-state:from:to:cc:subject:date:message-id:reply-to; bh=88p1w7uEcFSCHYKOCDuBHPZGg/x3AAPkfIOOrr6qmRE=; b=Hrq/Ns8MnhbLCE47rC2OknMC6wWgkmlghaeSUc7bpD7ec5amBjzFBwJ8MbZlg3wlqG g+PS/T1gAslme1mVKgizXq55/co1xLRb06HilCjIsyL0fX1JDrgkEd2D3Ak7yiiUp8YB ybJI7+lHBK4gqZq9hqxmiy8FnzPu1ACrlXGAA7pHRwT2ImozHV8kFcYcQWidZWMBc5mv lEmmQlxq+tjbaHvSvnYRr4LQQ7kZNDRubmWctBYtopJcFNTXEg9O/R92PshT/YyLkdNP aHhQbGz0Fawr0FoZ2uzgZMfwj7YErBR+idUOO14thmBl5ccHxFaGRfNHkzZqNi1M4KWc rGyg== X-Forwarded-Encrypted: i=1; AJvYcCWbiGLTBUlLcQXaF3DCbSwrGjZ8ryVAkbjSHmXDoBnntUxSVVEP2hqq0gFJhON0E1Rg4KdbWXzGOpTq@vger.kernel.org X-Gm-Message-State: AOJu0YxaASdatjwpEK1IuKvh1gxGtexCzYKz2vrGln/OhGS5/WWjrOmz p7w9XkNkBHOtYeRyFr2+ghs725FE1l0UzYpU8EoOunqJ03DPboktGeJ303nUHiMCg41bdt4fuZc HYOVtfEpI1/gJJ1AR5Q== X-Google-Smtp-Source: AGHT+IGpaoCewgRhvYW5fa+HpkkDxI6GYIKVShvL+72MGW8IdbGecEsEYFRFVCnEraF7VtF/dPJ/f4MPXZFrOdbn X-Received: from pjbpq9.prod.google.com ([2002:a17:90b:3d89:b0:2fa:a101:755]) (user=changyuanl job=prod-delivery.src-stubby-dispatcher) by 2002:a17:90b:2707:b0:2ff:6488:e01c with SMTP id 98e67ed59e1d1-3030fefe3e4mr5163a91.29.1742491096376; Thu, 20 Mar 2025 10:18:16 -0700 (PDT) Date: Thu, 20 Mar 2025 10:18:02 -0700 In-Reply-To: Precedence: bulk X-Mailing-List: devicetree@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: Mime-Version: 1.0 References: X-Mailer: git-send-email 2.49.0.395.g12beb8f557-goog Message-ID: <20250320171802.2325561-1-changyuanl@google.com> Subject: Re: [PATCH v5 11/16] kexec: add config option for KHO From: Changyuan Lyu To: krzk@kernel.org Cc: akpm@linux-foundation.org, anthony.yznaga@oracle.com, arnd@arndb.de, ashish.kalra@amd.com, benh@kernel.crashing.org, bp@alien8.de, catalin.marinas@arm.com, changyuanl@google.com, corbet@lwn.net, dave.hansen@linux.intel.com, devicetree@vger.kernel.org, dwmw2@infradead.org, ebiederm@xmission.com, graf@amazon.com, hpa@zytor.com, jgowans@amazon.com, kexec@lists.infradead.org, linux-arm-kernel@lists.infradead.org, linux-doc@vger.kernel.org, linux-kernel@vger.kernel.org, linux-mm@kvack.org, luto@kernel.org, mark.rutland@arm.com, mingo@redhat.com, pasha.tatashin@soleen.com, pbonzini@redhat.com, peterz@infradead.org, ptyadav@amazon.de, robh+dt@kernel.org, robh@kernel.org, rostedt@goodmis.org, rppt@kernel.org, saravanak@google.com, skinsburskii@linux.microsoft.com, tglx@linutronix.de, thomas.lendacky@amd.com, will@kernel.org, x86@kernel.org Content-Type: text/plain; charset="UTF-8" Hi Krzysztof, On Thu, Mar 20, 2025 at 08:10:37 +0100, Krzysztof Kozlowski wrote: > On 20/03/2025 02:55, Changyuan Lyu wrote: > > From: Alexander Graf > > > > We have all generic code in place now to support Kexec with KHO. This > > patch adds a config option that depends on architecture support to > > enable KHO support. > > > > Signed-off-by: Alexander Graf > > Co-developed-by: Mike Rapoport (Microsoft) > > Signed-off-by: Mike Rapoport (Microsoft) > > Co-developed-by: Changyuan Lyu > > Signed-off-by: Changyuan Lyu > What did you exactly co-develop here? Few changes does not mean you are > a co-developer. I proposed and implemented the hashtable-based state tree API in the previous patch "kexec: add Kexec HandOver (KHO) generation helpers" [1] and then added `select XXHASH` here. If one line of change is not qualified for "Co-developed-by", I will remove it from the commit message in the next version. [1] https://lore.kernel.org/all/20250320015551.2157511-8-changyuanl@google.com/ Best, Changyuan