limine/common/entry.s3.c
Kacper Słomiński e1f6ac8860
Initial AArch64 port (#205)
* Initial aarch64 port

* Enable chainload on aarch64

No changes necessary since it's all UEFI anyway.

* Add specification for Limine protocol for aarch64

* PROTOCOL: Specify state of information in DT /chosen node

* common: Add spinup code for aarch64

* common: Port elf and term to aarch64

* common: Port vmm to aarch64

Also prepare to drop VMM_FLAG_PRESENT on x86.

* protos: Port limine boot protocol to aarch64

Also drop VMM_FLAG_PRESENT since we never unmap pages anyway.

* test: Add DTB request

* PROTOCOL: Port SMP request to aarch64

* cpu: Add cache maintenance functions for aarch64

* protos/limine, sys: Port SMP to aarch64

Also move common asm macros into a header file.

* test: Start up APs

* vmm: Unify get_next_level and implement large page splitting

* protos/limine: Map framebuffer using correct caching mode on AArch64

* CI: Fix GCC build for aarch64

* entry, menu: Replace uses of naked attribute with separate asm file

GCC does not understand the naked attribute on aarch64, and didn't
understand it for x86 in older versions.
2022-08-18 17:32:54 +02:00

121 lines
3.0 KiB
C

#include <stddef.h>
#include <stdint.h>
#include <stdnoreturn.h>
#include <lib/term.h>
#include <lib/real.h>
#include <lib/blib.h>
#include <lib/libc.h>
#include <lib/part.h>
#include <lib/config.h>
#include <lib/trace.h>
#include <sys/e820.h>
#include <sys/a20.h>
#include <sys/idt.h>
#include <sys/gdt.h>
#include <lib/print.h>
#include <fs/file.h>
#include <lib/elf.h>
#include <mm/pmm.h>
#include <menu.h>
#include <pxe/pxe.h>
#include <pxe/tftp.h>
#include <drivers/disk.h>
#include <sys/lapic.h>
#include <lib/readline.h>
void stage3_common(void);
#if uefi == 1
noreturn void uefi_entry(EFI_HANDLE ImageHandle, EFI_SYSTEM_TABLE *SystemTable) {
gST = SystemTable;
gBS = SystemTable->BootServices;
gRT = SystemTable->RuntimeServices;
efi_image_handle = ImageHandle;
EFI_STATUS status;
status = gBS->SetWatchdogTimer(0, 0x10000, 0, NULL);
if (status) {
term_vbe(NULL, 0, 0);
early_term = true;
print("WARNING: Failed to disable watchdog timer!\n");
}
term_notready();
init_memmap();
#if defined (__x86_64__) || defined (__i386__)
init_gdt();
#endif
disk_create_index();
boot_volume = NULL;
EFI_HANDLE current_handle = ImageHandle;
for (;;) {
if (current_handle == NULL) {
term_vbe(NULL, 0, 0);
early_term = true;
print("WARNING: Could not meaningfully match the boot device handle with a volume.\n");
print(" Using the first volume containing a Limine configuration!\n");
for (size_t i = 0; i < volume_index_i; i++) {
struct file_handle *f;
if ((f = fopen(volume_index[i], "/limine.cfg")) == NULL
&& (f = fopen(volume_index[i], "/boot/limine.cfg")) == NULL
&& (f = fopen(volume_index[i], "/EFI/BOOT/limine.cfg")) == NULL) {
continue;
}
fclose(f);
if (volume_index[i]->backing_dev != NULL) {
boot_volume = volume_index[i]->backing_dev;
} else {
boot_volume = volume_index[i];
}
break;
}
if (boot_volume != NULL)
stage3_common();
panic(false, "No volume contained a Limine configuration file");
}
EFI_GUID loaded_img_prot_guid = EFI_LOADED_IMAGE_PROTOCOL_GUID;
EFI_LOADED_IMAGE_PROTOCOL *loaded_image = NULL;
status = gBS->HandleProtocol(current_handle, &loaded_img_prot_guid,
(void **)&loaded_image);
if (status) {
panic(false, "HandleProtocol failure (%x)", status);
}
boot_volume = disk_volume_from_efi_handle(loaded_image->DeviceHandle);
if (boot_volume != NULL)
stage3_common();
current_handle = loaded_image->ParentHandle;
}
}
#endif
noreturn void stage3_common(void) {
term_notready();
#if defined (__x86_64__) || defined (__i386__)
init_flush_irqs();
init_io_apics();
#endif
menu(true);
}