ELF execution of mb1 implementation

2 files changed, 30 insertions, 0 deletions

diff --git a/src/loader/impl/all.c b/src/loader/impl/all.c
index 1f19b1e..a5c93b1 100644
--- a/src/loader/impl/all.c
+++ b/src/loader/impl/all.c
@@ -2,6 +2,7 @@
 
 #include <impl/all.h>
 #include <impl/mb1.h>
+#include <pnc.h>
 
 u8 impl_detect(struct dev *dev, const char *path)
 {
@@ -10,3 +11,20 @@ u8 impl_detect(struct dev *dev, const char *path)
 
 	return 0;
 }
+
+void impl_exec(struct dev *dev, const char *path)
+{
+	assert(dev->type == DEV_DISK);
+
+	switch (dev->p.disk.impl.type) {
+	case IMPL_MB1:
+		mb1_exec(dev, path);
+		break;
+	case IMPL_MB2:
+	case IMPL_NONE:
+	default:
+		panic("Invalid implementation\n");
+	}
+
+	panic("Couldn't execute implementation\n");
+}
diff --git a/src/loader/impl/mb1.c b/src/loader/impl/mb1.c
index cb75976..765433e 100644
--- a/src/loader/impl/mb1.c
+++ b/src/loader/impl/mb1.c
@@ -1,6 +1,7 @@
 // MIT License, Copyright (c) 2021 Marvin Borner
 // Everything according to spec
 
+#include <elf.h>
 #include <impl/mb1.h>
 #include <pnc.h>
 
@@ -58,3 +59,14 @@ u8 mb1_detect(struct dev *dev, const char *path)
 
 	return 1;
 }
+
+// Execute mb1 type kernel
+void mb1_exec(struct dev *dev, const char *path)
+{
+	u32 entry = elf_load(dev, path);
+	void (*kernel)(void *);
+	*(void **)(&kernel) = (void *)entry;
+
+	// TODO: Push mb1 stuff
+	kernel(dev);
+}