diff options
| -rw-r--r-- | sys/amd64/amd64/support.S | 13 |
1 files changed, 3 insertions, 10 deletions
diff --git a/sys/amd64/amd64/support.S b/sys/amd64/amd64/support.S index bc23e90..c8b6253 100644 --- a/sys/amd64/amd64/support.S +++ b/sys/amd64/amd64/support.S @@ -65,17 +65,10 @@ END(bzero) /* Address: %rdi */ ENTRY(pagezero) PUSH_FRAME_POINTER - movq $-PAGE_SIZE,%rdx - subq %rdx,%rdi + movq $PAGE_SIZE/8,%rcx xorl %eax,%eax -1: - movnti %rax,(%rdi,%rdx) - movnti %rax,8(%rdi,%rdx) - movnti %rax,16(%rdi,%rdx) - movnti %rax,24(%rdi,%rdx) - addq $32,%rdx - jne 1b - sfence + rep + stosq POP_FRAME_POINTER ret END(pagezero) |
