feat(ke+pl): pass boot info to early init

src/kern/init.zig

@@ -12,7 +12,7 @@ var stack: [8192]u8 align(16) = undefined;
 pub fn init(boot_info: *pl.BootInfo) linksection(b.init) void {
     std.log.info("hello, world", .{});
     ki.impl.early_init();
-    pl.early_init();
+    pl.early_init(boot_info);
     ki.cpu.init_cpu();
 
     thread0.init(@intFromPtr(&stack), 8192, ki.sched.idle, null);

src/platform/pc/impl.zig

@@ -1,4 +1,5 @@
 const b = @import("base");
+const pl = b.pl;
 const amd64 = b.arch;
 const std = @import("std");
 
@@ -25,7 +26,7 @@ fn com1_write(c: u8) void {
     amd64.outb(com1, c);
 }
 
-pub fn early_init() linksection(b.init) void {
+pub fn early_init(boot_info: *pl.BootInfo) linksection(b.init) void {
     com1_init();
 
     amd64.detect_cpu_features();
@@ -48,6 +49,7 @@ pub fn early_init() linksection(b.init) void {
         @intFromBool(f.fxsave),
         @intFromBool(f.tsc_deadline),
     });
+    _ = boot_info;
 }
 
 pub fn late_init() void {}

src/platform/root.zig

@@ -11,8 +11,8 @@ else
     @compileError("unsupported architecture");
 
 /// Early platform-specific initialization, called before anything else.
-pub inline fn early_init() void {
+pub inline fn early_init(boot_info: *BootInfo) void {
-    return impl.early_init();
+    return impl.early_init(boot_info);
 }
 
 /// Late platform init. Memory allocator is available at this point.