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Kernel: Add support for setting up a x86_64 GDT once in C++ land

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Gunnar Beutner 2021-06-25 14:34:04 +02:00 • committed by Andreas Kling
parent 29d9666e02
commit f630299d49
5 changed files with 55 additions and 11 deletions
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11
Kernel/Arch/x86/Processor.h
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@ -19,6 +19,11 @@
namespace Kernel {
#if ARCH(X86_64)
# define MSR_FS_BASE 0xc0000100
# define MSR_GS_BASE 0xc0000102
#endif
class Thread;
class SchedulerPerProcessorData;
struct MemoryManagerData;
@ -241,7 +246,11 @@ public:
ALWAYS_INLINE static bool is_initialized()
{
return get_fs() == GDT_SELECTOR_PROC && read_fs_u32(__builtin_offsetof(Processor, m_self)) != 0;
return
#if ARCH(I386)
get_fs() == GDT_SELECTOR_PROC &&
#endif
read_fs_u32(__builtin_offsetof(Processor, m_self)) != 0;
}
ALWAYS_INLINE void set_scheduler_data(SchedulerPerProcessorData& scheduler_data)