diff options
Diffstat (limited to 'arch/x86_64/src/kernel/cpu/idtr.cpp')
| -rw-r--r-- | arch/x86_64/src/kernel/cpu/idtr.cpp | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/arch/x86_64/src/kernel/cpu/idtr.cpp b/arch/x86_64/src/kernel/cpu/idtr.cpp new file mode 100644 index 0000000..7aa20c1 --- /dev/null +++ b/arch/x86_64/src/kernel/cpu/idtr.cpp @@ -0,0 +1,18 @@ +#include "arch/kernel/cpu/idtr.hpp" + +namespace teachos::arch::kernel::cpu +{ + auto store_interrupt_descriptor_table() + -> context_switching::interrupt_descriptor_table::interrupt_descriptor_table_pointer + { + context_switching::interrupt_descriptor_table::interrupt_descriptor_table_pointer current_value{}; + asm("sidt %[output]" : [output] "=m"(current_value)); + return current_value; + } + + auto load_interrupt_descriptor_table( + context_switching::interrupt_descriptor_table::interrupt_descriptor_table_pointer const & idt_pointer) -> void + { + asm volatile("lidt %[input]" : /* no output from call */ : [input] "m"(idt_pointer)); + } +} // namespace teachos::arch::kernel::cpu |