diff options
Diffstat (limited to 'arch/riscv64/kernel/entry.S')
| -rw-r--r-- | arch/riscv64/kernel/entry.S | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/arch/riscv64/kernel/entry.S b/arch/riscv64/kernel/entry.S index 8ff642a..db662bb 100644 --- a/arch/riscv64/kernel/entry.S +++ b/arch/riscv64/kernel/entry.S @@ -87,7 +87,8 @@ handle_syscall: * twice */ csrr s0, CSR_SEPC addi s0, s0, 4 - csrw CSR_SEPC, s0 + /* store execution continuation point */ + sr s0, 0(tp) /* allocate space for sys_ret structure on stack and shift argument * registers down one to make room for the pointer to this structure */ addi sp, sp, -sizeof_sys_ret @@ -112,6 +113,9 @@ handle_syscall: /* get associated kernel stack */ mv sp, tp addi sp, sp, -sizeof_registers + /* set execution continuation */ + lr s0, 0(tp) + csrw CSR_SEPC, s0 /* restore system call result */ j restore_noreturn |