No need to store TRAPFRAME in sscratch register

mit-pdos / xv6-riscv

Xv6 for RISC-V

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Closed segfauIt closed 2 years ago

segfauIt commented 2 years ago

TRAPFRAME is a fixed virtual address in the user page table, we can use it directly.

rtmrtmrtmrtm commented 2 years ago

Thank you -- we plan to adopt this idea.