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 hvc 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. --- v2 -> fix the compilation erros on 32bit platform(see below) Reported-by: kernel test robot <lkp@xxxxxxxxx> Closes: https://lore.kernel.org/oe-kbuild-all/202304100606.kUjhsRYf-lkp@xxxxxxxxx/ v1 -> original patches 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 | 17 +++++ drivers/firmware/arm_scmi/smc.c | 72 ++++++++++++++++++- 2 files changed, 88 insertions(+), 1 deletion(-) -- 2.17.1
