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This commit is contained in:
Josh Holtrop 2022-03-18 18:42:48 -04:00
parent 9e3d9b18ea
commit 1ce8a5727b
2 changed files with 27 additions and 0 deletions
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23
src/common/hos/page_table.d Normal file
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@ -0,0 +1,23 @@
struct PageTableEntry
{
ulong entry;
this(ulong address, ulong no_execute, ulong global,
ulong huge, ulong disable_cache, ulong write_through, ulong user,
ulong writable, ulong present)
{
entry = (present |
(writable << 1) |
(user << 2) |
(write_through << 3) |
(disable_cache << 4) |
(huge << 7) |
(global << 8) |
(no_execute << 63)) | address;
}
bool present()
{
return (entry & 0x1u) != 0u;
}
}

4
src/hello/hello.d
View File

@ -2,6 +2,7 @@ import uefi;
import output; import output;
import scratch; import scratch;
import hulk.bootinfo; import hulk.bootinfo;
import hos.page_table;
__gshared EFI_SYSTEM_TABLE * st; __gshared EFI_SYSTEM_TABLE * st;
__gshared BootInfo bootinfo; __gshared BootInfo bootinfo;
@ -129,6 +130,9 @@ extern (C) EFI_STATUS efi_main(EFI_HANDLE image_handle, EFI_SYSTEM_TABLE * st)
writeln("HELLO, HOS EFI Lightweight LOader, v0.1.0"); writeln("HELLO, HOS EFI Lightweight LOader, v0.1.0");
writeln("Firmware vendor: '%S', version: 0x%x", st.FirmwareVendor, st.FirmwareVendor); writeln("Firmware vendor: '%S', version: 0x%x", st.FirmwareVendor, st.FirmwareVendor);
PageTableEntry * pte = cast(PageTableEntry *)scratch_alloc(1u);
wait_key();
if (!set_graphics_mode()) if (!set_graphics_mode())
{ {
wait_key(); wait_key();