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From: neil.armstrong@linaro.org
To: Mukesh Ojha <quic_mojha@quicinc.com>
Cc: Bjorn Andersson <andersson@kernel.org>,
	Mathieu Poirier <mathieu.poirier@linaro.org>,
	Rob Herring <robh@kernel.org>,
	Krzysztof Kozlowski <krzk+dt@kernel.org>,
	Conor Dooley <conor+dt@kernel.org>,
	Konrad Dybcio <konradybcio@kernel.org>,
	Bartosz Golaszewski <bartosz.golaszewski@linaro.org>,
	Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>,
	linux-arm-msm@vger.kernel.org, linux-remoteproc@vger.kernel.org,
	devicetree@vger.kernel.org, linux-kernel@vger.kernel.org,
	Shiraz Hashim <quic_shashim@quicinc.com>
Subject: Re: [PATCH 3/6] remoteproc: qcom: Add helper function to support IOMMU devmem translation
Date: Thu, 10 Oct 2024 08:59:04 +0200	[thread overview]
Message-ID: <5fc9d581-14a6-45e8-8eda-4df49b81f15d@linaro.org> (raw)
In-Reply-To: <ZwPyE/rQOH181rqz@hu-mojha-hyd.qualcomm.com>

Hi,

On 07/10/2024 16:37, Mukesh Ojha wrote:
> On Mon, Oct 07, 2024 at 10:08:16AM +0200, neil.armstrong@linaro.org wrote:
>> On 04/10/2024 23:23, Mukesh Ojha wrote:
>>> From: Shiraz Hashim <quic_shashim@quicinc.com>
>>>
>>> Qualcomm SoCs runnning with Qualcomm EL2 hypervisor(QHEE), IOMMU
>>> translation set up for remote processors is managed by QHEE itself
>>> however, for a case when these remote processors has to run under KVM
>>
>> This is not true, KVM is a Linux hypervisor, remote processors have
>> nothing to do with KVM, please rephrase.
> 
> Thanks, perhaps something like this,
> 
> "However, when same SoC runs with KVM configuration, remoteproc IOMMU
> translation needs to be set from Linux host running remoteproc PAS
> driver"

Thanks but I still don't see what KVM has to do here, KVM is an an optional
Linux kernel feature, Linux can be configured without KVM and still perfectly
startup those remoteprocs.

Neil

> 
> -Mukesh
> 


  reply	other threads:[~2024-10-10  6:59 UTC|newest]

Thread overview: 38+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2024-10-04 21:23 [PATCH 0/6] Peripheral Image Loader support for Qualcomm SoCs Mukesh Ojha
2024-10-04 21:23 ` [PATCH 1/6] dt-bindings: remoteproc: qcom,pas-common: Introduce iommus and qcom,devmem property Mukesh Ojha
2024-10-06 19:38   ` Dmitry Baryshkov
2024-10-07 15:35     ` Mukesh Ojha
2024-10-07 16:25       ` Dmitry Baryshkov
2024-10-09 14:04         ` Shiraz Hashim
2024-10-10  7:15           ` Krzysztof Kozlowski
2024-10-10  8:30             ` Shiraz Hashim
2024-10-04 21:23 ` [PATCH 2/6] remoteproc: qcom: Add iommu map_unmap helper function Mukesh Ojha
2024-10-06  2:04   ` kernel test robot
2024-10-06  4:29   ` kernel test robot
2024-10-04 21:23 ` [PATCH 3/6] remoteproc: qcom: Add helper function to support IOMMU devmem translation Mukesh Ojha
2024-10-07  8:08   ` neil.armstrong
2024-10-07 14:37     ` Mukesh Ojha
2024-10-10  6:59       ` neil.armstrong [this message]
2024-10-17 21:25         ` Konrad Dybcio
2024-10-04 21:23 ` [PATCH 4/6] remoteproc: qcom: Add support to parse qcom,devmem property Mukesh Ojha
2024-10-04 21:23 ` [PATCH 5/6] remoteproc: qcom: Add support of SHM bridge to enable memory protection Mukesh Ojha
2024-10-05 22:26   ` kernel test robot
2024-10-25 19:03   ` Konrad Dybcio
2024-10-04 21:23 ` [PATCH 6/6] remoteproc: qcom: Enable map/unmap and SHM bridge support Mukesh Ojha
2024-10-07  8:05   ` neil.armstrong
2024-10-07 14:52     ` Mukesh Ojha
2024-10-08  6:21       ` Mukesh Ojha
2024-10-10  6:57         ` neil.armstrong
2024-10-11  5:05           ` Shiraz Hashim
2024-10-11  6:23             ` Dmitry Baryshkov
2024-10-11  7:09               ` Shiraz Hashim
2024-10-11  7:12                 ` Dmitry Baryshkov
2024-10-14 12:31                   ` Shiraz Hashim
2024-10-14 12:38                     ` Dmitry Baryshkov
2024-10-11  7:11               ` Mukesh Ojha
2024-10-11  7:09             ` neil.armstrong
2024-10-14 12:29               ` Shiraz Hashim
2024-10-25 19:07   ` Konrad Dybcio
2024-10-06 19:34 ` [PATCH 0/6] Peripheral Image Loader support for Qualcomm SoCs Dmitry Baryshkov
2024-10-07 18:39   ` Mukesh Ojha
2024-10-09 13:50   ` Shiraz Hashim

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