Subversion Repositories HelenOS-historic

Rev

Rev 1066 | Rev 1102 | Go to most recent revision | Show entire file | Ignore whitespace | Details | Blame | Last modification | View Log | RSS feed

Rev 1066 Rev 1078
Line 28... Line 28...
28 
 
 28 
 
29 
#include <userspace.h>
 29 
#include <userspace.h>
30 
#include <arch/pm.h>
 30 
#include <arch/pm.h>
31 
#include <arch/types.h>
 31 
#include <arch/types.h>
32 
#include <arch.h>
 32 
#include <arch.h>
33 
#include <proc/thread.h>
 33 
#include <proc/uarg.h>
34 
#include <mm/as.h>
 34 
#include <mm/as.h>
35 
 
 35 
 
36 
 
 36 
 
37 
/** Enter userspace
 37 
/** Enter userspace
38 
 *
 38 
 *
39 
 * Change CPU protection level to 3, enter userspace.
 39 
 * Change CPU protection level to 3, enter userspace.
40 
 *
 40 
 *
41 
 */
 41 
 */
42 
void userspace(uspace_arg_t *uarg)
 42 
void userspace(uspace_arg_t *kernel_uarg)
43 
{
 43 
{
44 
    ipl_t ipl;
 44 
    ipl_t ipl;
45 
   
 45 
   
46 
    ipl = interrupts_disable();
 46 
    ipl = interrupts_disable();
47 
 
 47 
 
Line 49... Line 49...
49 
              "pushq %0\n"
 49 
              "pushq %0\n"
50 
              "pushq %1\n"
 50 
              "pushq %1\n"
51 
              "pushq %2\n"
 51 
              "pushq %2\n"
52 
              "pushq %3\n"
 52 
              "pushq %3\n"
53 
              "pushq %4\n"
 53 
              "pushq %4\n"
- 
 
 54 
              "movq %5, %%rax\n"
54 
              "iretq\n"
 55 
              "iretq\n"
55 
              : :
 56 
              : :
56 
              "i" (gdtselector(UDATA_DES) | PL_USER),
 57 
              "i" (gdtselector(UDATA_DES) | PL_USER),
57 
              "r" (uarg->uspace_stack+THREAD_STACK_SIZE),
 58 
              "r" (kernel_uarg->uspace_stack+THREAD_STACK_SIZE),
58 
              "r" (ipl),
 59 
              "r" (ipl),
59 
              "i" (gdtselector(UTEXT_DES) | PL_USER),
 60 
              "i" (gdtselector(UTEXT_DES) | PL_USER),
60 
              "r" (uarg->uspace_entry));
 61 
              "r" (kernel_uarg->uspace_entry),
- 
 
 62 
              "r" (kernel_uarg->uspace_uarg)
- 
 
 63 
              : "rax"
- 
 
 64 
              );
61 
   
 65 
   
62 
    /* Unreachable */
 66 
    /* Unreachable */
63 
    for(;;);
 67 
    for(;;)
- 
 
 68 
        ;
64 
}
 69 
}