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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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20
Kernel/Process.cpp
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@@ -181,12 +181,11 @@ RefPtr<Process> Process::create_kernel_process(RefPtr<Thread>& first_thread, Str
if (!first_thread || !process)
return {};
#if ARCH(I386)
first_thread->tss().eip = (FlatPtr)entry;
first_thread->tss().esp = FlatPtr(entry_data); // entry function argument is expected to be in tss.esp
first_thread->regs().eip = (FlatPtr)entry;
first_thread->regs().esp = FlatPtr(entry_data); // entry function argument is expected to be in regs.esp
#else
(void)entry;
(void)entry_data;
PANIC("Process::create_kernel_process() not implemented");
first_thread->regs().rip = (FlatPtr)entry;
first_thread->regs().rsp = FlatPtr(entry_data); // entry function argument is expected to be in regs.rsp
#endif
if (process->pid() != 0) {
@@ -645,14 +644,13 @@ RefPtr<Thread> Process::create_kernel_thread(void (*entry)(void*), void* entry_d
if (!joinable)
thread->detach();
auto& regs = thread->regs();
#if ARCH(I386)
auto& tss = thread->tss();
tss.eip = (FlatPtr)entry;
tss.esp = FlatPtr(entry_data); // entry function argument is expected to be in tss.esp
regs.eip = (FlatPtr)entry;
regs.esp = FlatPtr(entry_data); // entry function argument is expected to be in regs.rsp
#else
(void)entry;
(void)entry_data;
PANIC("Process::create_kernel_thread() not implemented");
regs.rip = (FlatPtr)entry;
regs.rsp = FlatPtr(entry_data); // entry function argument is expected to be in regs.rsp
#endif
ScopedSpinLock lock(g_scheduler_lock);