sanchayanmaity/xv6-cs450
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don't send keyboard interrupts to the second cpu, if we have only one cpu.

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xv6 seems to work fine on uniprocessor now.
This commit is contained in:
kaashoek 2006-09-03 17:34:09 +00:00
parent 7abf49d2f2
commit 0b6ab8416e
2 changed files with 3 additions and 3 deletions
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1
Notes
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@ -117,7 +117,6 @@ echo foo > bar should truncate bar
so O_CREATE should not truncate
but O_TRUNC should
make it work on one cpu
make it work on a real machine
release before acquire at end of sleep?
check 2nd disk (i.e. if not in .bochsrc)

5
console.c
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@ -365,8 +365,9 @@ console_read(int minor, char *dst, int n)
acquire(&kbd_lock);
while(kbd_w == kbd_r)
while(kbd_w == kbd_r) {
sleep(&kbd_r, &kbd_lock);
}
while(n > 0 && kbd_w != kbd_r){
*dst = (kbd_buf[kbd_r]) & 0xff;
@ -392,7 +393,7 @@ console_init()
devsw[CONSOLE].d_write = console_write;
devsw[CONSOLE].d_read = console_read;
ioapic_enable (IRQ_KBD, 1);
ioapic_enable (IRQ_KBD, 0);
use_console_lock = 1;
}