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x86_64: Add general protection fault handler
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apio 2022-12-24 11:49:47 +01:00
parent f71ccde833
commit 59d69f684f
Signed by: apio
GPG Key ID: B8A7D06E42258954
1 changed files with 14 additions and 1 deletions
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15
kernel/src/arch/x86_64/CPU.cpp
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@ -28,6 +28,8 @@ extern void setup_idt();
[[noreturn]] void handle_page_fault(Registers* regs) [[noreturn]] void handle_page_fault(Registers* regs)
{ {
CPU::disable_interrupts();
u64 cr2; u64 cr2;
asm volatile("mov %%cr2, %0" : "=r"(cr2)); asm volatile("mov %%cr2, %0" : "=r"(cr2));
kerrorln("Page fault at RIP %lx while accessing %lx!", regs->rip, cr2); kerrorln("Page fault at RIP %lx while accessing %lx!", regs->rip, cr2);
@ -37,6 +39,17 @@ extern void setup_idt();
CPU::efficient_halt(); CPU::efficient_halt();
} }
[[noreturn]] void handle_general_protection_fault(Registers* regs)
{
CPU::disable_interrupts();
kerrorln("General protection fault at RIP %lx, error code %lx!", regs->rip, regs->error);
CPU::print_stack_trace_at(regs);
CPU::efficient_halt();
}
extern "C" void handle_x86_exception(Registers* regs) extern "C" void handle_x86_exception(Registers* regs)
{ {
switch (regs->isr) switch (regs->isr)
@ -52,7 +65,7 @@ extern "C" void handle_x86_exception(Registers* regs)
case 10: FIXME_UNHANDLED_INTERRUPT("Invalid TSS"); case 10: FIXME_UNHANDLED_INTERRUPT("Invalid TSS");
case 11: FIXME_UNHANDLED_INTERRUPT("Segment not present"); case 11: FIXME_UNHANDLED_INTERRUPT("Segment not present");
case 12: FIXME_UNHANDLED_INTERRUPT("Stack-segment fault"); case 12: FIXME_UNHANDLED_INTERRUPT("Stack-segment fault");
case 13: FIXME_UNHANDLED_INTERRUPT("General protection fault"); case 13: handle_general_protection_fault(regs);
case 14: handle_page_fault(regs); case 14: handle_page_fault(regs);
case 16: FIXME_UNHANDLED_INTERRUPT("x87 floating-point exception"); case 16: FIXME_UNHANDLED_INTERRUPT("x87 floating-point exception");
case 17: FIXME_UNHANDLED_INTERRUPT("Alignment check"); case 17: FIXME_UNHANDLED_INTERRUPT("Alignment check");