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| author | Alex Auvolat <alex.auvolat@ens.fr> | 2014-12-07 11:24:06 +0100 |
|---|---|---|
| committer | Alex Auvolat <alex.auvolat@ens.fr> | 2014-12-07 11:24:06 +0100 |
| commit | 26b68c108664cb54089613bdbc54624ed66f7fda (patch) | |
| tree | cafbab0b0c9c1db1869e4346cebc96b2d6f53570 /kernel/l0/idt.c | |
| parent | acc786cb5805d057932ada3e7c571bb8e901cd67 (diff) | |
| download | kogata-26b68c108664cb54089613bdbc54624ed66f7fda.tar.gz kogata-26b68c108664cb54089613bdbc54624ed66f7fda.zip | |
Make L0 thread-safe (mostly).
Diffstat (limited to 'kernel/l0/idt.c')
| -rw-r--r-- | kernel/l0/idt.c | 10 |
1 files changed, 8 insertions, 2 deletions
diff --git a/kernel/l0/idt.c b/kernel/l0/idt.c index 76aa225..8562636 100644 --- a/kernel/l0/idt.c +++ b/kernel/l0/idt.c @@ -91,6 +91,11 @@ static isr_handler_t ex_handlers[32] = {0}; void idt_exHandler(registers_t *regs) { if (ex_handlers[regs->int_no] != 0) { ex_handlers[regs->int_no](regs); + } else { + //TODO: make sure all exceptions happenning in userspace do not cause kernel panic... + dbg_printf("Unhandled exception: %i\n", regs->int_no); + dbg_dump_registers(regs); + PANIC("Unhandled exception"); } } @@ -132,7 +137,8 @@ static const struct { void (*fun)(); uint8_t type; } gates[] = { - // Processor exceptions are traps : handling them should be preemptible + // Most processor exceptions are traps and handling them + // should be preemptible { 0, isr0, GATE_TYPE_TRAP }, { 1, isr1, GATE_TYPE_TRAP }, { 2, isr2, GATE_TYPE_TRAP }, @@ -147,7 +153,7 @@ static const struct { { 11, isr11, GATE_TYPE_TRAP }, { 12, isr12, GATE_TYPE_TRAP }, { 13, isr13, GATE_TYPE_TRAP }, - { 14, isr14, GATE_TYPE_TRAP }, + { 14, isr14, GATE_TYPE_INTERRUPT }, // reenables interrupts later on { 15, isr15, GATE_TYPE_TRAP }, { 16, isr16, GATE_TYPE_TRAP }, { 17, isr17, GATE_TYPE_TRAP }, |