Messages in this thread | | | From | Nikunj Kela <> | Subject | [PATCH v4 0/2] Allow parameter in smc/hvc calls | Date | Tue, 18 Apr 2023 11:56:57 -0700 |
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Currently, smc/hvc calls are made with parameters set to zeros. We are using multiple scmi instances within a VM. We are sharing the same smc-id(func_id) with all scmi instance. The hypervisor needs a way to distinguish among hvc calls made from different instances.
This patch series introduces new compatible string which can be used to pass shmem channel address as parameters to smc/hvc calls.
--- v4 -> split shmem address into 4KB-pages and offset
v3 -> pass shmem channel address as parameter
v2 -> fix the compilation erros on 32bit platform(see below) Reported-by: kernel test robot <lkp@intel.com> Closes: https://lore.kernel.org/oe-kbuild-all/202304100606.kUjhsRYf-lkp@intel.com/
v1 -> original patches
Nikunj Kela (2): dt-bindings: firmware: arm,scmi: support for parameter in smc/hvc call firmware: arm_scmi: Augment SMC/HVC to allow optional parameters
.../devicetree/bindings/firmware/arm,scmi.yaml | 8 +++++++- drivers/firmware/arm_scmi/driver.c | 1 + drivers/firmware/arm_scmi/smc.c | 14 +++++++++++++- 3 files changed, 21 insertions(+), 2 deletions(-)
-- 2.17.1
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