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[78.88.45.141]) by smtp.gmail.com with ESMTPSA id u22-20020a1709060b1600b00a3fbe13e2absm52810ejg.211.2024.02.23.15.46.32 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Fri, 23 Feb 2024 15:46:33 -0800 (PST) Message-ID: Date: Sat, 24 Feb 2024 00:46:31 +0100 Precedence: bulk X-Mailing-List: linux-arm-msm@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH v17 05/35] virt: gunyah: Add hypervisor driver To: Alex Elder , Srinivas Kandagatla , Murali Nalajal , Trilok Soni , Srivatsa Vaddagiri , Carl van Schaik , Philip Derrin , Prakruthi Deepak Heragu , Jonathan Corbet , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Catalin Marinas , Will Deacon , Bjorn Andersson , Dmitry Baryshkov , Fuad Tabba , Sean Christopherson , Andrew Morton , linux-arm-msm@vger.kernel.org, linux-doc@vger.kernel.org, linux-kernel@vger.kernel.org, devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-mm@kvack.org References: <20240222-gunyah-v17-0-1e9da6763d38@quicinc.com> <20240222-gunyah-v17-5-1e9da6763d38@quicinc.com> <20240223144844667-0800.eberman@hu-eberman-lv.qualcomm.com> Content-Language: en-US From: Konrad Dybcio Autocrypt: addr=konrad.dybcio@linaro.org; keydata= xsFNBF9ALYUBEADWAhxdTBWrwAgDQQzc1O/bJ5O7b6cXYxwbBd9xKP7MICh5YA0DcCjJSOum BB/OmIWU6X+LZW6P88ZmHe+KeyABLMP5s1tJNK1j4ntT7mECcWZDzafPWF4F6m4WJOG27kTJ HGWdmtO+RvadOVi6CoUDqALsmfS3MUG5Pj2Ne9+0jRg4hEnB92AyF9rW2G3qisFcwPgvatt7 TXD5E38mLyOPOUyXNj9XpDbt1hNwKQfiidmPh5e7VNAWRnW1iCMMoKqzM1Anzq7e5Afyeifz zRcQPLaqrPjnKqZGL2BKQSZDh6NkI5ZLRhhHQf61fkWcUpTp1oDC6jWVfT7hwRVIQLrrNj9G MpPzrlN4YuAqKeIer1FMt8cq64ifgTzxHzXsMcUdclzq2LTk2RXaPl6Jg/IXWqUClJHbamSk t1bfif3SnmhA6TiNvEpDKPiT3IDs42THU6ygslrBxyROQPWLI9IL1y8S6RtEh8H+NZQWZNzm UQ3imZirlPjxZtvz1BtnnBWS06e7x/UEAguj7VHCuymVgpl2Za17d1jj81YN5Rp5L9GXxkV1 aUEwONM3eCI3qcYm5JNc5X+JthZOWsbIPSC1Rhxz3JmWIwP1udr5E3oNRe9u2LIEq+wH/toH kpPDhTeMkvt4KfE5m5ercid9+ZXAqoaYLUL4HCEw+HW0DXcKDwARAQABzShLb25yYWQgRHli Y2lvIDxrb25yYWQuZHliY2lvQGxpbmFyby5vcmc+wsGOBBMBCAA4FiEEU24if9oCL2zdAAQV R4cBcg5dfFgFAmQ5bqwCGwMFCwkIBwIGFQoJCAsCBBYCAwECHgECF4AACgkQR4cBcg5dfFjO BQ//YQV6fkbqQCceYebGg6TiisWCy8LG77zV7DB0VMIWJv7Km7Sz0QQrHQVzhEr3trNenZrf yy+o2tQOF2biICzbLM8oyQPY8B///KJTWI2khoB8IJSJq3kNG68NjPg2vkP6CMltC/X3ohAo xL2UgwN5vj74QnlNneOjc0vGbtA7zURNhTz5P/YuTudCqcAbxJkbqZM4WymjQhe0XgwHLkiH 5LHSZ31MRKp/+4Kqs4DTXMctc7vFhtUdmatAExDKw8oEz5NbskKbW+qHjW1XUcUIrxRr667V GWH6MkVceT9ZBrtLoSzMLYaQXvi3sSAup0qiJiBYszc/VOu3RbIpNLRcXN3KYuxdQAptacTE mA+5+4Y4DfC3rUSun+hWLDeac9z9jjHm5rE998OqZnOU9aztbd6zQG5VL6EKgsVXAZD4D3RP x1NaAjdA3MD06eyvbOWiA5NSzIcC8UIQvgx09xm7dThCuQYJR4Yxjd+9JPJHI6apzNZpDGvQ BBZzvwxV6L1CojUEpnilmMG1ZOTstktWpNzw3G2Gis0XihDUef0MWVsQYJAl0wfiv/0By+XK mm2zRR+l/dnzxnlbgJ5pO0imC2w0TVxLkAp0eo0LHw619finad2u6UPQAkZ4oj++iIGrJkt5 Lkn2XgB+IW8ESflz6nDY3b5KQRF8Z6XLP0+IEdLOOARkOW7yEgorBgEEAZdVAQUBAQdAwmUx xrbSCx2ksDxz7rFFGX1KmTkdRtcgC6F3NfuNYkYDAQgHwsF2BBgBCAAgFiEEU24if9oCL2zd AAQVR4cBcg5dfFgFAmQ5bvICGwwACgkQR4cBcg5dfFju1Q//Xta1ShwL0MLSC1KL1lXGXeRM 8arzfyiB5wJ9tb9U/nZvhhdfilEDLe0jKJY0RJErbdRHsalwQCrtq/1ewQpMpsRxXzAjgfRN jc4tgxRWmI+aVTzSRpywNahzZBT695hMz81cVZJoZzaV0KaMTlSnBkrviPz1nIGHYCHJxF9r cIu0GSIyUjZ/7xslxdvjpLth16H27JCWDzDqIQMtg61063gNyEyWgt1qRSaK14JIH/DoYRfn jfFQSC8bffFjat7BQGFz4ZpRavkMUFuDirn5Tf28oc5ebe2cIHp4/kajTx/7JOxWZ80U70mA cBgEeYSrYYnX+UJsSxpzLc/0sT1eRJDEhI4XIQM4ClIzpsCIN5HnVF76UQXh3a9zpwh3dk8i bhN/URmCOTH+LHNJYN/MxY8wuukq877DWB7k86pBs5IDLAXmW8v3gIDWyIcgYqb2v8QO2Mqx YMqL7UZxVLul4/JbllsQB8F/fNI8AfttmAQL9cwo6C8yDTXKdho920W4WUR9k8NT/OBqWSyk bGqMHex48FVZhexNPYOd58EY9/7mL5u0sJmo+jTeb4JBgIbFPJCFyng4HwbniWgQJZ1WqaUC nas9J77uICis2WH7N8Bs9jy0wQYezNzqS+FxoNXmDQg2jetX8en4bO2Di7Pmx0jXA4TOb9TM izWDgYvmBE8= In-Reply-To: <20240223144844667-0800.eberman@hu-eberman-lv.qualcomm.com> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit On 23.02.2024 23:58, Elliot Berman wrote: > On Fri, Feb 23, 2024 at 10:10:47PM +0100, Konrad Dybcio wrote: >> On 23.02.2024 00:16, Elliot Berman wrote: >>> Add driver to detect when running under Gunyah. It performs basic >>> identification hypercall and populates the platform bus for resource >>> manager to probe. >>> >>> Signed-off-by: Elliot Berman >>> --- >> >> [...] >> >>> + >>> + /* Might move this out to individual drivers if there's ever an API version bump */ >>> + if (gunyah_api_version(&gunyah_api) != GUNYAH_API_V1) { >>> + pr_info("Unsupported Gunyah version: %u\n", >>> + gunyah_api_version(&gunyah_api)); >> >> Weird for this not to be an error, but it's probably not worth resending >> over if it's the only thing > > It is an error, but maybe I misunderstood: Sorry, I meant "pr_info might have been pr_err" Konrad > >>> + /* Might move this out to individual drivers if there's ever an API version bump */ >>> + if (gunyah_api_version(&gunyah_api) != GUNYAH_API_V1) { >>> + pr_info("Unsupported Gunyah version: %u\n", >>> + gunyah_api_version(&gunyah_api)); >>> + return -ENODEV; >>> + } > 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 bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (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 5C948C5478C for ; Fri, 23 Feb 2024 23:46:54 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:In-Reply-To:From:References:To:Subject: MIME-Version:Date:Message-ID:Reply-To:Cc:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=tmTFPudmcdsA4FWr/CMq5kcwlxUYKpHDZjjHKH5x+Gs=; b=u1sFyFVrVeASYF p9iz2PgTKohKfcLHV8nj+Tx9HKRcL7J6X+6RdPA9av2CN9iwPZn2fy+RDAED1bj/vjMnayHcA2VJK fZViPk+6xJj7T7WGAF9FhR9d7EOTLU7+D1GbgCxcusjlXErFgod8JnyEt/3eQ/s3qrVne7oxqaryi ihn93FfsJ7x5bL/nsPpwsdMhfB78bjwrpJAQk6BCGaoOX1nJhqCMCOtD3vLnQbHr8bhy5hh48cv6f HLVXGRU76A0MKVgTc4YaKDghIajBKLig9q9we3kvBAoptaynMETUGzVWaQBsY5z4PeN/Kx1x8tgE+ R/OwfNuClCDB+7dIyiiQ==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.97.1 #2 (Red Hat Linux)) id 1rdfFW-0000000Bbbs-3Zdt; Fri, 23 Feb 2024 23:46:38 +0000 Received: from mail-ej1-x62d.google.com ([2a00:1450:4864:20::62d]) by bombadil.infradead.org with esmtps (Exim 4.97.1 #2 (Red Hat Linux)) id 1rdfFU-0000000BbbT-3pXI for linux-arm-kernel@lists.infradead.org; Fri, 23 Feb 2024 23:46:38 +0000 Received: by mail-ej1-x62d.google.com with SMTP id a640c23a62f3a-a3f3d0d2787so111258266b.3 for ; Fri, 23 Feb 2024 15:46:36 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; t=1708731995; x=1709336795; darn=lists.infradead.org; h=content-transfer-encoding:in-reply-to:autocrypt:from :content-language:references:to:subject:user-agent:mime-version:date :message-id:from:to:cc:subject:date:message-id:reply-to; bh=NIAGIlOyfdPQGzUhuhBTCj1fg0Ra/brIZfOUyFxv3go=; b=RZISXasV+2vZwmac6FE3MszIfBISCckO3YoM2QxNIOFpLPZuGyYNPvaser2Qcvle0x qlQCySAMfE7GnYFIZn2SC5X0HILnOYw4uE/LasV2Hiuvo5GnAcx+cxFhrxHj/bG+Z1sd q5HpooFbHnqyE2QAZ8ECGzdzmEk/p+8DN/RdxDfXDZ4NqIfr7PwGv/pjM1eADlIaymKo 3+ooV7RAA17i4Xfn1cUCqCPSduYiJBJm4I2QTYmVUkNur9ElKwyZ6ldYO5pv3Car8yiI tiyXraf4EFHSDG5XkzC3qYVEcajpJwGM3QJRR8A7ejUl7YSxYXuTN/TBrg7qtIP8CAAr w03Q== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1708731995; x=1709336795; h=content-transfer-encoding:in-reply-to:autocrypt:from :content-language:references:to:subject:user-agent:mime-version:date :message-id:x-gm-message-state:from:to:cc:subject:date:message-id :reply-to; bh=NIAGIlOyfdPQGzUhuhBTCj1fg0Ra/brIZfOUyFxv3go=; b=CS3OZEsysoXelo7WYKZ4pw5gB3DMs/pMcP+TjtMNWeHWDieCSdgnGYm+40f8kd7YkX dl66rcxDwzTxv2uF0PKytSAREhj4Xrn8EF5I+PLtrYucVrF3XF0Ax5Ms3JC1jy6Kr9WJ B2ymdNCA4k6bMMlW9FvZ7Wd79T8ofr3qH7U6dcqH9NbvnCZ3fp9x3GgZtN9rzL9qThZW td4LHuJrsv85wajTVY4Lb0jYNOemTQtgj/OoJ4fgJw8s6VhcYVmUOkn6R/YKkHFyCziQ X+vNZKwaYfbDUeZK8ZUXo9kSo5WXAIwP59+rkRaW5bizpHEIEVtD85W12rKwjWPfE7KL iq1Q== X-Forwarded-Encrypted: i=1; AJvYcCVXSEzIyngbl94Lmh7idn3VIFf8xCnUMMnRSAB+jxKq8IGanIVh2jNQclIdI4pE5Sn7cP8/yw9i+3CR5CPg1uGFCHOJyP6kT2qOPG/hzPazShxCLXo= X-Gm-Message-State: AOJu0YzTpWSmVKviXtfd+9vT6UAEqFZSCSUfSwtWQNUoqsz6mggCYlYX L2CxfTuWn8RUeHrzjMPxHJVuuAHN7w/lsAl1xC6MUxZRg76z58YvGAqRWL7YUS0= X-Google-Smtp-Source: AGHT+IE0+tL8hH0wqn2x+/epyE+ZkG3YGes2J0uLaDyxWp2Ro/Yw07l0+8CizphqXDIS10sDl1t62Q== X-Received: by 2002:a17:906:d923:b0:a41:30be:4a82 with SMTP id rn3-20020a170906d92300b00a4130be4a82mr677228ejb.61.1708731994017; Fri, 23 Feb 2024 15:46:34 -0800 (PST) Received: from [192.168.179.2] (078088045141.garwolin.vectranet.pl. [78.88.45.141]) by smtp.gmail.com with ESMTPSA id u22-20020a1709060b1600b00a3fbe13e2absm52810ejg.211.2024.02.23.15.46.32 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Fri, 23 Feb 2024 15:46:33 -0800 (PST) Message-ID: Date: Sat, 24 Feb 2024 00:46:31 +0100 MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH v17 05/35] virt: gunyah: Add hypervisor driver To: Alex Elder , Srinivas Kandagatla , Murali Nalajal , Trilok Soni , Srivatsa Vaddagiri , Carl van Schaik , Philip Derrin , Prakruthi Deepak Heragu , Jonathan Corbet , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Catalin Marinas , Will Deacon , Bjorn Andersson , Dmitry Baryshkov , Fuad Tabba , Sean Christopherson , Andrew Morton , linux-arm-msm@vger.kernel.org, linux-doc@vger.kernel.org, linux-kernel@vger.kernel.org, devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-mm@kvack.org References: <20240222-gunyah-v17-0-1e9da6763d38@quicinc.com> <20240222-gunyah-v17-5-1e9da6763d38@quicinc.com> <20240223144844667-0800.eberman@hu-eberman-lv.qualcomm.com> Content-Language: en-US From: Konrad Dybcio Autocrypt: addr=konrad.dybcio@linaro.org; keydata= xsFNBF9ALYUBEADWAhxdTBWrwAgDQQzc1O/bJ5O7b6cXYxwbBd9xKP7MICh5YA0DcCjJSOum BB/OmIWU6X+LZW6P88ZmHe+KeyABLMP5s1tJNK1j4ntT7mECcWZDzafPWF4F6m4WJOG27kTJ HGWdmtO+RvadOVi6CoUDqALsmfS3MUG5Pj2Ne9+0jRg4hEnB92AyF9rW2G3qisFcwPgvatt7 TXD5E38mLyOPOUyXNj9XpDbt1hNwKQfiidmPh5e7VNAWRnW1iCMMoKqzM1Anzq7e5Afyeifz zRcQPLaqrPjnKqZGL2BKQSZDh6NkI5ZLRhhHQf61fkWcUpTp1oDC6jWVfT7hwRVIQLrrNj9G MpPzrlN4YuAqKeIer1FMt8cq64ifgTzxHzXsMcUdclzq2LTk2RXaPl6Jg/IXWqUClJHbamSk t1bfif3SnmhA6TiNvEpDKPiT3IDs42THU6ygslrBxyROQPWLI9IL1y8S6RtEh8H+NZQWZNzm UQ3imZirlPjxZtvz1BtnnBWS06e7x/UEAguj7VHCuymVgpl2Za17d1jj81YN5Rp5L9GXxkV1 aUEwONM3eCI3qcYm5JNc5X+JthZOWsbIPSC1Rhxz3JmWIwP1udr5E3oNRe9u2LIEq+wH/toH kpPDhTeMkvt4KfE5m5ercid9+ZXAqoaYLUL4HCEw+HW0DXcKDwARAQABzShLb25yYWQgRHli Y2lvIDxrb25yYWQuZHliY2lvQGxpbmFyby5vcmc+wsGOBBMBCAA4FiEEU24if9oCL2zdAAQV R4cBcg5dfFgFAmQ5bqwCGwMFCwkIBwIGFQoJCAsCBBYCAwECHgECF4AACgkQR4cBcg5dfFjO BQ//YQV6fkbqQCceYebGg6TiisWCy8LG77zV7DB0VMIWJv7Km7Sz0QQrHQVzhEr3trNenZrf yy+o2tQOF2biICzbLM8oyQPY8B///KJTWI2khoB8IJSJq3kNG68NjPg2vkP6CMltC/X3ohAo xL2UgwN5vj74QnlNneOjc0vGbtA7zURNhTz5P/YuTudCqcAbxJkbqZM4WymjQhe0XgwHLkiH 5LHSZ31MRKp/+4Kqs4DTXMctc7vFhtUdmatAExDKw8oEz5NbskKbW+qHjW1XUcUIrxRr667V GWH6MkVceT9ZBrtLoSzMLYaQXvi3sSAup0qiJiBYszc/VOu3RbIpNLRcXN3KYuxdQAptacTE mA+5+4Y4DfC3rUSun+hWLDeac9z9jjHm5rE998OqZnOU9aztbd6zQG5VL6EKgsVXAZD4D3RP x1NaAjdA3MD06eyvbOWiA5NSzIcC8UIQvgx09xm7dThCuQYJR4Yxjd+9JPJHI6apzNZpDGvQ BBZzvwxV6L1CojUEpnilmMG1ZOTstktWpNzw3G2Gis0XihDUef0MWVsQYJAl0wfiv/0By+XK mm2zRR+l/dnzxnlbgJ5pO0imC2w0TVxLkAp0eo0LHw619finad2u6UPQAkZ4oj++iIGrJkt5 Lkn2XgB+IW8ESflz6nDY3b5KQRF8Z6XLP0+IEdLOOARkOW7yEgorBgEEAZdVAQUBAQdAwmUx xrbSCx2ksDxz7rFFGX1KmTkdRtcgC6F3NfuNYkYDAQgHwsF2BBgBCAAgFiEEU24if9oCL2zd AAQVR4cBcg5dfFgFAmQ5bvICGwwACgkQR4cBcg5dfFju1Q//Xta1ShwL0MLSC1KL1lXGXeRM 8arzfyiB5wJ9tb9U/nZvhhdfilEDLe0jKJY0RJErbdRHsalwQCrtq/1ewQpMpsRxXzAjgfRN jc4tgxRWmI+aVTzSRpywNahzZBT695hMz81cVZJoZzaV0KaMTlSnBkrviPz1nIGHYCHJxF9r cIu0GSIyUjZ/7xslxdvjpLth16H27JCWDzDqIQMtg61063gNyEyWgt1qRSaK14JIH/DoYRfn jfFQSC8bffFjat7BQGFz4ZpRavkMUFuDirn5Tf28oc5ebe2cIHp4/kajTx/7JOxWZ80U70mA cBgEeYSrYYnX+UJsSxpzLc/0sT1eRJDEhI4XIQM4ClIzpsCIN5HnVF76UQXh3a9zpwh3dk8i bhN/URmCOTH+LHNJYN/MxY8wuukq877DWB7k86pBs5IDLAXmW8v3gIDWyIcgYqb2v8QO2Mqx YMqL7UZxVLul4/JbllsQB8F/fNI8AfttmAQL9cwo6C8yDTXKdho920W4WUR9k8NT/OBqWSyk bGqMHex48FVZhexNPYOd58EY9/7mL5u0sJmo+jTeb4JBgIbFPJCFyng4HwbniWgQJZ1WqaUC nas9J77uICis2WH7N8Bs9jy0wQYezNzqS+FxoNXmDQg2jetX8en4bO2Di7Pmx0jXA4TOb9TM izWDgYvmBE8= In-Reply-To: <20240223144844667-0800.eberman@hu-eberman-lv.qualcomm.com> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20240223_154637_063619_323F751F X-CRM114-Status: GOOD ( 13.99 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org On 23.02.2024 23:58, Elliot Berman wrote: > On Fri, Feb 23, 2024 at 10:10:47PM +0100, Konrad Dybcio wrote: >> On 23.02.2024 00:16, Elliot Berman wrote: >>> Add driver to detect when running under Gunyah. It performs basic >>> identification hypercall and populates the platform bus for resource >>> manager to probe. >>> >>> Signed-off-by: Elliot Berman >>> --- >> >> [...] >> >>> + >>> + /* Might move this out to individual drivers if there's ever an API version bump */ >>> + if (gunyah_api_version(&gunyah_api) != GUNYAH_API_V1) { >>> + pr_info("Unsupported Gunyah version: %u\n", >>> + gunyah_api_version(&gunyah_api)); >> >> Weird for this not to be an error, but it's probably not worth resending >> over if it's the only thing > > It is an error, but maybe I misunderstood: Sorry, I meant "pr_info might have been pr_err" Konrad > >>> + /* Might move this out to individual drivers if there's ever an API version bump */ >>> + if (gunyah_api_version(&gunyah_api) != GUNYAH_API_V1) { >>> + pr_info("Unsupported Gunyah version: %u\n", >>> + gunyah_api_version(&gunyah_api)); >>> + return -ENODEV; >>> + } > _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel