On Thu, Sep 12, 2024 at 04:16:34PM -0700, Deepak Gupta wrote: > This patch implements this syscall for riscv. riscv doesn't require token > to be setup by kernel because user mode can do that by itself. However to > provide compatibility and portability with other architectues, user mode > can specify token set flag. The arm64 series also adds SHADOW_STACK_SET_MARKER for a top of stack marker, if this is only being done for compatibility it might be good to pick that up as well. I don't know what the thoughts are on using them for RISC-V. On arm64 the top of stack marker is just all bits 0.
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