diff options
Diffstat (limited to 'kernel/usermode.c')
| -rw-r--r-- | kernel/usermode.c | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/kernel/usermode.c b/kernel/usermode.c index e4d22d3..745cef1 100644 --- a/kernel/usermode.c +++ b/kernel/usermode.c @@ -4,8 +4,9 @@ #include "syscalls.h" + tss_struct sys_tss; //Define the TSS as a global structure -extern uint32_t stack_top[]; + // generic syscall interface! int syscall(int call, int p1, int p2, int p3) @@ -46,7 +47,7 @@ void install_tss(int cpu_no){ // now fill each value // set values necessary sys_tss.ss0 = 0x10; //kernel data - sys_tss.esp0 = stack_top; //kernel stack just under the kernel + sys_tss.esp0 = kballoc(4); // now set the IO bitmap (not necessary, so set above limit) // sys_tss.iomap = ( unsigned short ) sizeof( tss_struct ); |