Minix/minix
1
0
Fork 0
Code Issues Pull Requests Projects Releases Wiki Activity

kernel: fix for vm_init that triggered assert(ptproc == newptproc)

Browse Source 
- zero cr3 in vm_init() to avoid switch_address_space() not doing anything.

 - add vm_stop() to disable paging on shutdown.
This commit is contained in:
Ben Gras
2010-06-07 22:21:45 +00:00
parent 277ff6f2ce
commit a09a8d4f3e
5 changed files with 41 additions and 1 deletions
Download Patch File Download Diff File Expand all files Collapse all files

17
kernel/arch/i386/klib.S
View File

@@ -38,6 +38,7 @@
.globl _getcr3val
.globl _write_cr0 /* write a value in cr0 */
.globl _read_cr3
.globl _write_cr3
.globl _read_cr4
.globl _write_cr4
@@ -788,6 +789,22 @@ _write_cr4:
0:
pop %ebp
ret
/*===========================================================================*/
/* write_cr3 */
/*===========================================================================*/
/* PUBLIC void write_cr3(unsigned long value); */
_write_cr3:
push %ebp
mov %esp, %ebp
mov 8(%ebp), %eax
/* DO NOT CHANGE THE OPERAND!!! gas2ack does not handle it yet */
mov %eax, %cr3
pop %ebp
ret
/*===========================================================================*/
/* getcr3val */
/*===========================================================================*/