From dff78de795a89c181e9c94b26db2f16988e8f4d6 Mon Sep 17 00:00:00 2001 From: Fabian Imhof Date: Thu, 10 Apr 2025 12:11:55 +0000 Subject: move context_switch function and environment into different directory --- arch/x86_64/src/kernel/cpu/segment_register.cpp | 9 +++++++++ 1 file changed, 9 insertions(+) (limited to 'arch/x86_64/src/kernel/cpu') diff --git a/arch/x86_64/src/kernel/cpu/segment_register.cpp b/arch/x86_64/src/kernel/cpu/segment_register.cpp index d7857dd..9fb7433 100644 --- a/arch/x86_64/src/kernel/cpu/segment_register.cpp +++ b/arch/x86_64/src/kernel/cpu/segment_register.cpp @@ -30,4 +30,13 @@ namespace teachos::arch::kernel::cpu : [input] "m"(segment_selector)); } + auto read_code_segment_register() -> context_switching::interrupt_descriptor_table::segment_selector + { + context_switching::interrupt_descriptor_table::segment_selector current_value; + asm volatile("mov %%cs, %[output]" : [output] "=r"(current_value)); + return current_value; + } + + auto validate_segment_registers() -> context_switching::interrupt_descriptor_table::segment_selector {} + } // namespace teachos::arch::kernel::cpu -- cgit v1.2.3