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Kernel: Rename Thread::tss to Thread::regs and add x86_64 support

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We're using software context switches so calling this struct tss is
somewhat misleading.
This commit is contained in:
Gunnar Beutner 2021-06-26 19:57:16 +02:00 • committed by Andreas Kling
parent eba33f82b8
commit f285241cb8
14 changed files with 246 additions and 204 deletions
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54
Kernel/Thread.h
View file

@ -62,6 +62,53 @@ struct ThreadSpecificData {
#define THREAD_AFFINITY_DEFAULT 0xffffffff
struct ThreadRegisters {
#if ARCH(I386)
FlatPtr ss;
FlatPtr gs;
FlatPtr fs;
FlatPtr es;
FlatPtr ds;
FlatPtr edi;
FlatPtr esi;
FlatPtr ebp;
FlatPtr esp;
FlatPtr ebx;
FlatPtr edx;
FlatPtr ecx;
FlatPtr eax;
FlatPtr eip;
FlatPtr esp0;
FlatPtr ss0;
#else
FlatPtr rdi;
FlatPtr rsi;
FlatPtr rbp;
FlatPtr rsp;
FlatPtr rbx;
FlatPtr rdx;
FlatPtr rcx;
FlatPtr rax;
FlatPtr r8;
FlatPtr r9;
FlatPtr r10;
FlatPtr r11;
FlatPtr r12;
FlatPtr r13;
FlatPtr r14;
FlatPtr r15;
FlatPtr rip;
FlatPtr rsp0;
#endif
FlatPtr cs;
#if ARCH(I386)
FlatPtr eflags;
#else
FlatPtr rflags;
#endif
FlatPtr cr3;
};
class Thread
: public RefCounted<Thread>
, public Weakable<Thread> {
@ -748,8 +795,9 @@ public:
DebugRegisterState& debug_register_state() { return m_debug_register_state; }
const DebugRegisterState& debug_register_state() const { return m_debug_register_state; }
TSS& tss() { return m_tss; }
const TSS& tss() const { return m_tss; }
ThreadRegisters& regs() { return m_regs; }
ThreadRegisters const& regs() const { return m_regs; }
State state() const { return m_state; }
const char* state_string() const;
@ -1210,7 +1258,7 @@ private:
mutable RecursiveSpinLock m_block_lock;
NonnullRefPtr<Process> m_process;
ThreadID m_tid { -1 };
TSS m_tss {};
ThreadRegisters m_regs;
DebugRegisterState m_debug_register_state {};
TrapFrame* m_current_trap { nullptr };
u32 m_saved_critical { 1 };