Merge branch 'master' into openslxopenslx

1 files changed, 34 insertions, 0 deletions

diff --git a/src/arch/riscv/include/bits/lkrn.h b/src/arch/riscv/include/bits/lkrn.h
new file mode 100644
index 000000000..d26108647
--- /dev/null
+++ b/src/arch/riscv/include/bits/lkrn.h
@@ -0,0 +1,34 @@
+#ifndef _BITS_LKRN_H
+#define _BITS_LKRN_H
+
+/** @file
+ *
+ * Linux kernel image invocation
+ *
+ */
+
+FILE_LICENCE ( GPL2_OR_LATER_OR_UBDL );
+
+#include <ipxe/hart.h>
+
+/** Header magic value */
+#define LKRN_MAGIC_ARCH LKRN_MAGIC_RISCV
+
+/**
+ * Jump to kernel entry point
+ *
+ * @v entry		Kernel entry point
+ * @v fdt		Device tree
+ */
+static inline __attribute__ (( noreturn )) void
+lkrn_jump ( physaddr_t entry, physaddr_t fdt ) {
+	register unsigned long a0 asm ( "a0" ) = boot_hart;
+	register unsigned long a1 asm ( "a1" ) = fdt;
+
+	__asm__ __volatile__ ( "call disable_paging\n\t"
+			       "jr %2\n\t"
+			       : : "r" ( a0 ), "r" ( a1 ), "r" ( entry ) );
+	__builtin_unreachable();
+}
+
+#endif /* _BITS_LKRN_H */