Imbus/xv6-riscv-kernel
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trap cleanup

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IRQ_OFFSET -> T_IRQ0 (a trap number not an IRQ number)
T_SYSCALL 0x30 -> 0x40 (move out of IRQ range)
This commit is contained in:
Russ Cox 2009-07-11 19:24:56 -07:00
parent 887f19686c
commit 2de1c550ca
3 changed files with 7 additions and 7 deletions
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4
ioapic.c
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@ -62,7 +62,7 @@ ioapicinit(void)
// Mark all interrupts edge-triggered, active high, disabled,
// and not routed to any CPUs.
for(i = 0; i <= maxintr; i++){
ioapicwrite(REG_TABLE+2*i, INT_DISABLED | (IRQ_OFFSET + i));
ioapicwrite(REG_TABLE+2*i, INT_DISABLED | (T_IRQ0 + i));
ioapicwrite(REG_TABLE+2*i+1, 0);
}
}
@ -76,6 +76,6 @@ ioapicenable(int irq, int cpunum)
// Mark interrupt edge-triggered, active high,
// enabled, and routed to the given cpunum,
// which happens to be that cpu's APIC ID.
ioapicwrite(REG_TABLE+2*irq, IRQ_OFFSET + irq);
ioapicwrite(REG_TABLE+2*irq, T_IRQ0 + irq);
ioapicwrite(REG_TABLE+2*irq+1, cpunum << 24);
}