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Message-ID: <b50aae99-151b-47ed-b610-99f4748790bf@linaro.org>
Date: Sat, 24 Feb 2024 00:46:31 +0100
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Subject: Re: [PATCH v17 05/35] virt: gunyah: Add hypervisor driver
To: Alex Elder <elder@linaro.org>,
 Srinivas Kandagatla <srinivas.kandagatla@linaro.org>,
 Murali Nalajal <quic_mnalajal@quicinc.com>,
 Trilok Soni <quic_tsoni@quicinc.com>,
 Srivatsa Vaddagiri <quic_svaddagi@quicinc.com>,
 Carl van Schaik <quic_cvanscha@quicinc.com>,
 Philip Derrin <quic_pderrin@quicinc.com>,
 Prakruthi Deepak Heragu <quic_pheragu@quicinc.com>,
 Jonathan Corbet <corbet@lwn.net>, Rob Herring <robh+dt@kernel.org>,
 Krzysztof Kozlowski <krzysztof.kozlowski+dt@linaro.org>,
 Conor Dooley <conor+dt@kernel.org>, Catalin Marinas
 <catalin.marinas@arm.com>, Will Deacon <will@kernel.org>,
 Bjorn Andersson <andersson@kernel.org>,
 Dmitry Baryshkov <dmitry.baryshkov@linaro.org>, Fuad Tabba
 <tabba@google.com>, Sean Christopherson <seanjc@google.com>,
 Andrew Morton <akpm@linux-foundation.org>, 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>
 <a3356079-bd55-4852-9bb3-b5362a1c953e@linaro.org>
 <20240223144844667-0800.eberman@hu-eberman-lv.qualcomm.com>
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From: Konrad Dybcio <konrad.dybcio@linaro.org>
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In-Reply-To: <20240223144844667-0800.eberman@hu-eberman-lv.qualcomm.com>
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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 <quic_eberman@quicinc.com>
>>> ---
>>
>> [...]
>>
>>> +
>>> +	/* 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;
>>> +	}
>