Re: [PATCH v5 2/2] firmware: arm_scmi: Add qcom smc/hvc transport support
From: Brian Masney <bmasney@redhat.com>
Date: 2023-10-06 20:18:50
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On Fri, Oct 06, 2023 at 09:42:06AM -0700, Nikunj Kela wrote:
This change adds the support for SCMI message exchange on Qualcomm virtual platforms. The hypervisor associates an object-id also known as capability-id with each smc/hvc doorbell object. The capability-id is used to identify the doorbell from the VM's capability namespace, similar to a file-descriptor. The hypervisor, in addition to the function-id, expects the capability-id to be passed in x1 register when SMC/HVC call is invoked. The capability-id is allocated by the hypervisor on bootup and is stored in the shmem region by the firmware before starting Linux. Signed-off-by: Nikunj Kela <redacted>
Reviewed-by: Brian Masney <bmasney@redhat.com> _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel