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IOPL, VM, and serial debug output (disabled).

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This commit is contained in:
Philip Homburg
2005-09-30 12:54:59 +00:00
parent 9528152f68
commit 9bee3f4b08
13 changed files with 416 additions and 5 deletions
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6
kernel/system.c
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@@ -75,7 +75,8 @@ PUBLIC void sys_task()
caller_ptr = proc_addr(m.m_source);
/* See if the caller made a valid request and try to handle it. */
if (! (priv(caller_ptr)->s_call_mask & (1<<call_nr))) {
if (! (priv(caller_ptr)->s_call_mask & (1<<call_nr)) &&
m.m_type != SYS_IOPENABLE ) {
kprintf("SYSTEM: request %d from %d denied.\n", call_nr,m.m_source);
result = ECALLDENIED; /* illegal message type */
} else if (call_nr >= NR_SYS_CALLS) { /* check call number */
@@ -152,6 +153,8 @@ PRIVATE void initialize(void)
map(SYS_NEWMAP, do_newmap); /* set up a process memory map */
map(SYS_SEGCTL, do_segctl); /* add segment and get selector */
map(SYS_MEMSET, do_memset); /* write char to memory area */
map(SYS_VM_SETBUF, do_vm_setbuf); /* PM passes buffer for page tables */
map(SYS_VM_MAP, do_vm_map); /* Map/unmap physical (device) memory */
/* Copying. */
map(SYS_UMAP, do_umap); /* map virtual to physical address */
@@ -167,6 +170,7 @@ PRIVATE void initialize(void)
/* System control. */
map(SYS_ABORT, do_abort); /* abort MINIX */
map(SYS_GETINFO, do_getinfo); /* request system information */
map(SYS_IOPENABLE, do_iopenable); /* Enable I/O */
}
/*===========================================================================*