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Kernel: Slap UNMAP_AFTER_INIT on a whole bunch of functions

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There's no real system here, I just added it to various functions
that I don't believe we ever want to call after initialization
has finished.

With these changes, we're able to unmap 60 KiB of kernel text
after init. :^)
This commit is contained in:
Andreas Kling 2021-02-19 18:41:50 +01:00
parent 32e93c8808
commit fdf03852c9
22 changed files with 69 additions and 68 deletions
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20
Kernel/Arch/i386/CPU.cpp
View file

@ -454,24 +454,24 @@ void unregister_generic_interrupt_handler(u8 interrupt_number, GenericInterruptH
ASSERT_NOT_REACHED();
}
void register_interrupt_handler(u8 index, void (*f)())
UNMAP_AFTER_INIT void register_interrupt_handler(u8 index, void (*f)())
{
s_idt[index].low = 0x00080000 | LSW((f));
s_idt[index].high = ((u32)(f)&0xffff0000) | 0x8e00;
}
void register_user_callable_interrupt_handler(u8 index, void (*f)())
UNMAP_AFTER_INIT void register_user_callable_interrupt_handler(u8 index, void (*f)())
{
s_idt[index].low = 0x00080000 | LSW((f));
s_idt[index].high = ((u32)(f)&0xffff0000) | 0xef00;
}
void flush_idt()
UNMAP_AFTER_INIT void flush_idt()
{
asm("lidt %0" ::"m"(s_idtr));
}
static void idt_init()
UNMAP_AFTER_INIT static void idt_init()
{
s_idtr.address = s_idt;
s_idtr.limit = 256 * 8 - 1;
@ -815,7 +815,7 @@ Processor& Processor::by_id(u32 cpu)
}
}
void Processor::cpu_detect()
UNMAP_AFTER_INIT void Processor::cpu_detect()
{
// NOTE: This is called during Processor::early_initialize, we cannot
// safely log at this point because we don't have kmalloc
@ -900,7 +900,7 @@ void Processor::cpu_detect()
set_feature(CPUFeature::RDSEED);
}
void Processor::cpu_setup()
UNMAP_AFTER_INIT void Processor::cpu_setup()
{
// NOTE: This is called during Processor::early_initialize, we cannot
// safely log at this point because we don't have kmalloc
@ -1013,7 +1013,7 @@ String Processor::features_string() const
return builder.build();
}
void Processor::early_initialize(u32 cpu)
UNMAP_AFTER_INIT void Processor::early_initialize(u32 cpu)
{
m_self = this;
@ -1048,7 +1048,7 @@ void Processor::early_initialize(u32 cpu)
ASSERT(&current() == this); // sanity check
}
void Processor::initialize(u32 cpu)
UNMAP_AFTER_INIT void Processor::initialize(u32 cpu)
{
ASSERT(m_self == this);
ASSERT(&current() == this); // sanity check
@ -1774,7 +1774,7 @@ u32 Processor::smp_wake_n_idle_processors(u32 wake_count)
return did_wake_count;
}
void Processor::smp_enable()
UNMAP_AFTER_INIT void Processor::smp_enable()
{
size_t msg_pool_size = Processor::count() * 100u;
size_t msg_entries_cnt = Processor::count();
@ -2167,7 +2167,7 @@ void Processor::deferred_call_queue(void (*callback)(void*), void* data, void (*
cur_proc.deferred_call_queue_entry(entry);
}
void Processor::gdt_init()
UNMAP_AFTER_INIT void Processor::gdt_init()
{
m_gdt_length = 0;
m_gdtr.address = nullptr;