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x86_64: Add a friendlier handler for page faults
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apio 2022-12-05 21:02:21 +01:00
parent 1d0dd8fa93
commit 8ff9cb4b96
Signed by: apio
GPG Key ID: B8A7D06E42258954
1 changed files with 10 additions and 2 deletions
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12
kernel/src/arch/x86_64/CPU.cpp
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@ -293,7 +293,15 @@ static void setup_idt()
kerrorln("FIXME(interrupt): %s", name); \ kerrorln("FIXME(interrupt): %s", name); \
CPU::efficient_halt(); CPU::efficient_halt();
extern "C" void handle_x86_exception([[maybe_unused]] Registers* regs) [[noreturn]] void handle_page_fault(Registers* regs)
{
u64 cr2;
asm volatile("mov %%cr2, %0" : "=r"(cr2));
kerrorln("Page fault at RIP %lx while accessing %lx!", regs->rip, cr2);
CPU::efficient_halt();
}
extern "C" void handle_x86_exception(Registers* regs)
{ {
switch (regs->isr) switch (regs->isr)
{ {
@ -309,7 +317,7 @@ extern "C" void handle_x86_exception([[maybe_unused]] Registers* regs)
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: FIXME_UNHANDLED_INTERRUPT("General protection fault");
case 14: FIXME_UNHANDLED_INTERRUPT("Page fault"); 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");
case 19: FIXME_UNHANDLED_INTERRUPT("SIMD floating-point exception"); case 19: FIXME_UNHANDLED_INTERRUPT("SIMD floating-point exception");