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Kernel: Add basic aarch64 support to MemoryManager

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FIXME: There's still a lot to do like for example, port `quickmap_page`.
This does however get us further into the boot process than before.
This commit is contained in:
Filiph Sandström 2022-08-17 12:38:58 +02:00 • committed by Linus Groh
parent 14fe03569a
commit 7e1e208d08
6 changed files with 41 additions and 18 deletions
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20
Kernel/Arch/aarch64/init.cpp
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@ -26,6 +26,7 @@
#include <Kernel/Devices/DeviceManagement.h>
#include <Kernel/Graphics/Console/BootFramebufferConsole.h>
#include <Kernel/KSyms.h>
#include <Kernel/Memory/MemoryManager.h>
#include <Kernel/Panic.h>
extern "C" void exception_common(Kernel::TrapFrame const* const trap_frame);
@ -91,6 +92,17 @@ extern "C" [[noreturn]] void init()
{
g_in_early_boot = true;
// FIXME: Don't hardcode this
multiboot_memory_map_t mmap[] = {
{ sizeof(struct multiboot_mmap_entry) - sizeof(u32),
(u64)0x0,
(u64)0xA2F000,
MULTIBOOT_MEMORY_AVAILABLE }
};
multiboot_memory_map = mmap;
multiboot_memory_map_count = 1;
dbgln("Welcome to Serenity OS!");
dbgln("Imagine this being your ideal operating system.");
dbgln("Observed deviations from that ideal are shortcomings of your imagination.");
@ -119,6 +131,9 @@ extern "C" [[noreturn]] void init()
}
dmesgln("Starting SerenityOS...");
dmesgln("Initialize MMU");
init_page_tables();
Memory::MemoryManager::initialize(0);
DeviceManagement::initialize();
// Invoke all static global constructors in the kernel.
@ -133,9 +148,6 @@ extern "C" [[noreturn]] void init()
auto firmware_version = query_firmware_version();
dmesgln("Firmware version: {}", firmware_version);
dmesgln("Initialize MMU");
init_page_tables();
auto& timer = RPi::Timer::the();
timer.set_interrupt_interval_usec(1'000'000);
timer.enable_interrupt_mode();
@ -146,6 +158,8 @@ extern "C" [[noreturn]] void init()
// interrupts are working!
for (;;)
asm volatile("wfi");
VERIFY_NOT_REACHED();
}
class QueryFirmwareVersionMboxMessage : RPi::Mailbox::Message {