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| author | Matteo Gmür <matteo.gmuer1@ost.ch> | 2025-05-02 14:49:06 +0000 |
|---|---|---|
| committer | Matteo Gmür <matteo.gmuer1@ost.ch> | 2025-05-02 14:49:06 +0000 |
| commit | 099a7fbbc35a71f98553fa39899f2d17c555242f (patch) | |
| tree | b80f9dfef02d223e08af123bf5adff41a98bc2bc /arch/x86_64/src/kernel/cpu/tr.cpp | |
| parent | 7c045d8ded72017ff11fd4b9b02148987b944caf (diff) | |
| download | teachos-099a7fbbc35a71f98553fa39899f2d17c555242f.tar.xz teachos-099a7fbbc35a71f98553fa39899f2d17c555242f.zip | |
Finish implementing 8-byte GDT entries and syscall arg loads.
Diffstat (limited to 'arch/x86_64/src/kernel/cpu/tr.cpp')
| -rw-r--r-- | arch/x86_64/src/kernel/cpu/tr.cpp | 8 |
1 files changed, 1 insertions, 7 deletions
diff --git a/arch/x86_64/src/kernel/cpu/tr.cpp b/arch/x86_64/src/kernel/cpu/tr.cpp index e281189..a435540 100644 --- a/arch/x86_64/src/kernel/cpu/tr.cpp +++ b/arch/x86_64/src/kernel/cpu/tr.cpp @@ -11,12 +11,6 @@ namespace teachos::arch::kernel::cpu auto load_task_register(uint16_t gdt_offset) -> void { - // asm volatile("ltr %[input]" : /* no output from call */ : [input] "R"(gdt_offset)); - // https://www.scs.stanford.edu/05au-cs240c/lab/i386/s07_03.htm - asm volatile("mov %[input], %%ax\n" - "ltr %%ax\n" - : /* no output from call */ - : [input] "r"(gdt_offset) - : "ax"); + asm volatile("ltr %[input]" : /* no output from call */ : [input] "m"(gdt_offset)); } } // namespace teachos::arch::kernel::cpu |