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Kernel: store/load sse/mmx/fpu state on isr/irq/syscall

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I haven't tested this yet but should be fine. This will be optimized
to only save state from threads that are using it
This commit is contained in:
Bananymous
2023-07-31 22:28:57 +03:00
parent e86e755c51
commit 8b1bccb79b
3 changed files with 17 additions and 0 deletions
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8
kernel/arch/x86_64/IDT.cpp
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@@ -138,6 +138,8 @@ namespace IDT
extern "C" void cpp_isr_handler(uint64_t isr, uint64_t error, Kernel::InterruptStack& interrupt_stack, const Registers* regs)
{
Kernel::Thread::current().save_sse();
pid_t tid = Kernel::Scheduler::current_tid();
pid_t pid = tid ? Kernel::Process::current().pid() : 0;
@@ -205,10 +207,14 @@ namespace IDT
default:
break;
}
Kernel::Thread::current().load_sse();
}
extern "C" void cpp_irq_handler(uint64_t irq, Kernel::InterruptStack& interrupt_stack)
{
Kernel::Thread::current().save_sse();
if (Kernel::Scheduler::current_tid())
{
Kernel::Thread::current().set_return_rsp(interrupt_stack.rsp);
@@ -242,6 +248,8 @@ namespace IDT
default:
break;
}
Kernel::Thread::current().load_sse();
}
static void flush_idt()