[PATCH 0/2] Allow parameter in smc/hvc calls

From: Nikunj Kela
Date: Sun Apr 09 2023 - 14:20:04 EST


Currently, smc/hvc calls are made with parameters set
to zeros. We are using multiple scmi instances within
a VM and hypervisor associates a tag with each instance
and expects the tag in smc calls from that instance, while
sharing the same smc-id(func_id) among the instances.

This patch series introduces new optional dtb bindings which
can be used to pass parameters to smc/hvc calls.

Nikunj Kela (2):
dt-bindings: firmware: arm,scmi: support parameter passing in smc/hvc
firmware: arm_scmi: Augment SMC/HVC to allow optional parameters

.../bindings/firmware/arm,scmi.yaml | 16 +++++
drivers/firmware/arm_scmi/smc.c | 66 ++++++++++++++++++-
2 files changed, 81 insertions(+), 1 deletion(-)

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2.17.1