5 files changed, 136 insertions, 0 deletions
diff --git a/include/grub/riscv32/efi/memory.h b/include/grub/riscv32/efi/memory.h
new file mode 100644
index 0000000..e61c474
--- /dev/null
+++ b/include/grub/riscv32/efi/memory.h
@@ -0,0 +1,6 @@
+#ifndef GRUB_MEMORY_CPU_HEADER
+#include <grub/efi/memory.h>
+
+#define GRUB_EFI_MAX_USABLE_ADDRESS 0xffffffffUL
+
+#endif /* ! GRUB_MEMORY_CPU_HEADER */
diff --git a/include/grub/riscv32/linux.h b/include/grub/riscv32/linux.h
new file mode 100644
index 0000000..512b777
--- /dev/null
+++ b/include/grub/riscv32/linux.h
@@ -0,0 +1,41 @@
+/*
+ *  GRUB  --  GRand Unified Bootloader
+ *  Copyright (C) 2018  Free Software Foundation, Inc.
+ *
+ *  GRUB is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation, either version 3 of the License, or
+ *  (at your option) any later version.
+ *
+ *  GRUB is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with GRUB.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#ifndef GRUB_RISCV32_LINUX_HEADER
+#define GRUB_RISCV32_LINUX_HEADER 1
+
+#define GRUB_LINUX_RISCV_MAGIC_SIGNATURE 0x52534356 /* 'RSCV' */
+
+/* From linux/Documentation/riscv/booting.txt */
+struct linux_riscv_kernel_header
+{
+  grub_uint32_t code0;		/* Executable code */
+  grub_uint32_t code1;		/* Executable code */
+  grub_uint64_t text_offset;	/* Image load offset */
+  grub_uint64_t res0;		/* reserved */
+  grub_uint64_t res1;		/* reserved */
+  grub_uint64_t res2;		/* reserved */
+  grub_uint64_t res3;		/* reserved */
+  grub_uint64_t res4;		/* reserved */
+  grub_uint32_t magic;		/* Magic number, little endian, "RSCV" */
+  grub_uint32_t hdr_offset;	/* Offset of PE/COFF header */
+};
+
+#define linux_arch_kernel_header linux_riscv_kernel_header
+
+#endif /* ! GRUB_RISCV32_LINUX_HEADER */
diff --git a/include/grub/riscv32/setjmp.h b/include/grub/riscv32/setjmp.h
new file mode 100644
index 0000000..5a21238
--- /dev/null
+++ b/include/grub/riscv32/setjmp.h
@@ -0,0 +1,27 @@
+/*
+ *  GRUB  --  GRand Unified Bootloader
+ *  Copyright (C) 2018  Free Software Foundation, Inc.
+ *
+ *  GRUB is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation, either version 3 of the License, or
+ *  (at your option) any later version.
+ *
+ *  GRUB is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with GRUB.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#ifndef GRUB_SETJMP_CPU_HEADER
+#define GRUB_SETJMP_CPU_HEADER	1
+
+typedef unsigned long long grub_jmp_buf[14];
+
+int grub_setjmp (grub_jmp_buf env) RETURNS_TWICE;
+void grub_longjmp (grub_jmp_buf env, int val) __attribute__ ((noreturn));
+
+#endif /* ! GRUB_SETJMP_CPU_HEADER */
diff --git a/include/grub/riscv32/time.h b/include/grub/riscv32/time.h
new file mode 100644
index 0000000..20abd64
--- /dev/null
+++ b/include/grub/riscv32/time.h
@@ -0,0 +1,28 @@
+/*
+ *  GRUB  --  GRand Unified Bootloader
+ *  Copyright (C) 2018  Free Software Foundation, Inc.
+ *
+ *  GRUB is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation, either version 3 of the License, or
+ *  (at your option) any later version.
+ *
+ *  GRUB is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with GRUB.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#ifndef KERNEL_CPU_TIME_HEADER
+#define KERNEL_CPU_TIME_HEADER	1
+
+static __inline void
+grub_cpu_idle (void)
+{
+  /* TODO */
+}
+
+#endif /* ! KERNEL_CPU_TIME_HEADER */
diff --git a/include/grub/riscv32/types.h b/include/grub/riscv32/types.h
new file mode 100644
index 0000000..fac57a7
--- /dev/null
+++ b/include/grub/riscv32/types.h
@@ -0,0 +1,34 @@
+/*
+ *  GRUB  --  GRand Unified Bootloader
+ *  Copyright (C) 2018  Free Software Foundation, Inc.
+ *
+ *  GRUB is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation, either version 3 of the License, or
+ *  (at your option) any later version.
+ *
+ *  GRUB is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with GRUB.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#ifndef GRUB_TYPES_CPU_HEADER
+#define GRUB_TYPES_CPU_HEADER	1
+
+/* The size of void *.  */
+#define GRUB_TARGET_SIZEOF_VOID_P	4
+
+/* The size of long.  */
+#define GRUB_TARGET_SIZEOF_LONG		4
+
+/* currently only support little-endian.  */
+#undef GRUB_TARGET_WORDS_BIGENDIAN
+
+/* Unaligned accesses can be very slow, so avoid them */
+#undef GRUB_HAVE_UNALIGNED_ACCESS
+
+#endif /* ! GRUB_TYPES_CPU_HEADER */