diff options
Diffstat (limited to 'arch/riscv64/kernel/proc.c')
| -rw-r--r-- | arch/riscv64/kernel/proc.c | 14 |
1 files changed, 10 insertions, 4 deletions
diff --git a/arch/riscv64/kernel/proc.c b/arch/riscv64/kernel/proc.c index f012b20..3ae2e15 100644 --- a/arch/riscv64/kernel/proc.c +++ b/arch/riscv64/kernel/proc.c @@ -81,7 +81,7 @@ void set_thread(struct tcb *t) struct riscv_regs *r = (struct riscv_regs *)(t->regs) - 1; /* insert important values into register slots */ - r->sp = (long)t->thread_stack + t->thread_stack_size; + r->sp = (long)t->rpc_stack - BASE_PAGE_SIZE; } void set_stack(struct tcb *t, vm_t s) @@ -99,9 +99,15 @@ vm_t get_stack(struct tcb *t) void copy_regs(struct tcb *d, struct tcb *s) { - struct riscv_regs *rd = (struct riscv_regs *)(d->regs) - 1; - struct riscv_regs *rs = (struct riscv_regs *)(s->regs) - 1; - *rd = *rs; + struct riscv_regs rs = *((struct riscv_regs *)(s->regs) - 1); + /* again, not a fan of this, I guess we could query the underlying + * physical page? Would that be any faster? */ + use_vmem(d->rpc.vmem); + + struct riscv_regs *rd = ((struct riscv_regs *)(d->regs) - 1); + *rd = rs; + + use_vmem(s->rpc.vmem); } void adjust_ipi(struct tcb *t) |