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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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8
Kernel/init.cpp
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@ -116,7 +116,7 @@ static Processor s_bsp_processor; // global but let's keep it "private"
// Once multi-tasking is ready, we spawn a new thread that starts in the
// init_stage2() function. Initialization continues there.
extern "C" [[noreturn]] void init()
extern "C" UNMAP_AFTER_INIT [[noreturn]] void init()
{
setup_serial_debug();
@ -196,7 +196,7 @@ extern "C" [[noreturn]] void init()
//
// The purpose of init_ap() is to initialize APs for multi-tasking.
//
extern "C" [[noreturn]] void init_ap(u32 cpu, Processor* processor_info)
extern "C" UNMAP_AFTER_INIT [[noreturn]] void init_ap(u32 cpu, Processor* processor_info)
{
processor_info->early_initialize(cpu);
@ -213,7 +213,7 @@ extern "C" [[noreturn]] void init_ap(u32 cpu, Processor* processor_info)
// This method is called once a CPU enters the scheduler and its idle thread
// At this point the initial boot stack can be freed
//
extern "C" void init_finished(u32 cpu)
extern "C" UNMAP_AFTER_INIT void init_finished(u32 cpu)
{
if (cpu == 0) {
// TODO: we can reuse the boot stack, maybe for kmalloc()?
@ -323,7 +323,7 @@ void init_stage2(void*)
ASSERT_NOT_REACHED();
}
void setup_serial_debug()
UNMAP_AFTER_INIT void setup_serial_debug()
{
// serial_debug will output all the klog() and dbgln() data to COM1 at
// 8-N-1 57600 baud. this is particularly useful for debugging the boot