[PATCH] RISC-V: Update linux image header

[Atish Patra]

Update the RISC-V Linux kernel image headers as per the current header
defined in Linux kernel.

Reference:
<Linux kernel source>/Documentation/riscv/boot-image-header.rst

Signed-off-by: Atish Patra <address@hidden>
---
 include/grub/riscv32/linux.h | 15 ++++++++-------
 include/grub/riscv64/linux.h | 15 ++++++++-------
 2 files changed, 16 insertions(+), 14 deletions(-)

diff --git a/include/grub/riscv32/linux.h b/include/grub/riscv32/linux.h
index 12f66dbee0ee..706c69087546 100644
--- a/include/grub/riscv32/linux.h
+++ b/include/grub/riscv32/linux.h
@@ -19,20 +19,21 @@
 #ifndef GRUB_RISCV32_LINUX_HEADER
 #define GRUB_RISCV32_LINUX_HEADER 1
 
-#define GRUB_LINUX_RISCV_MAGIC_SIGNATURE 0x52534356 /* 'RSCV' */
+#define GRUB_LINUX_RISCV_MAGIC_SIGNATURE 0x05435352 /* 'RSC\0x5' */
 
-/* From linux/Documentation/riscv/booting.txt */
+/* From linux/Documentation/riscv/boot-image-header.rst */
 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 text_offset;   /* Image load offset, little endian */
+  grub_uint64_t image_size;    /* Effective Image size, little endian */
+  grub_uint64_t flags;         /* kernel flags, little endian */
+  grub_uint32_t version;       /* Version of this header */
+  grub_uint32_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 magic;         /* Magic number, little endian, "RSC\x05" */
   grub_uint32_t hdr_offset;    /* Offset of PE/COFF header */
 };
 
diff --git a/include/grub/riscv64/linux.h b/include/grub/riscv64/linux.h
index 682cd1812aa7..88d5df781899 100644
--- a/include/grub/riscv64/linux.h
+++ b/include/grub/riscv64/linux.h
@@ -19,22 +19,23 @@
 #ifndef GRUB_RISCV64_LINUX_HEADER
 #define GRUB_RISCV64_LINUX_HEADER 1
 
-#define GRUB_LINUX_RISCV_MAGIC_SIGNATURE 0x52534356 /* 'RSCV' */
+#define GRUB_LINUX_RISCV_MAGIC_SIGNATURE 0x05435352 /* 'RSC\0x5' */
 
 #define GRUB_EFI_PE_MAGIC      0x5A4D
 
-/* From linux/Documentation/riscv/booting.txt */
+/* From linux/Documentation/riscv/boot-image-header.rst */
 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 text_offset;   /* Image load offset, little endian */
+  grub_uint64_t image_size;    /* Effective Image size, little endian */
+  grub_uint64_t flags;         /* kernel flags, little endian */
+  grub_uint32_t version;       /* Version of this header */
+  grub_uint32_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 magic;         /* Magic number, little endian, "RSC\x05" */
   grub_uint32_t hdr_offset;    /* Offset of PE/COFF header */
 };
 
-- 
2.26.2