[Xen-devel] [PATCH v3 1/4] arm64: Add and export some accessor functions for xen boot

[fu.wei@xxxxxxxxxx]

From: Fu Wei <fu.wei@xxxxxxxxxx>

Add accessor functions of "loaded" flag in
grub-core/loader/arm64/linux.c.

Export accessor functions of "loaded" flag and
grub_linux_get_fdt function in include/grub/arm64/linux.h.

Purpose: Reuse the existing code of devicetree in linux module.

Signed-off-by: Fu Wei <fu.wei@xxxxxxxxxx>
---
 grub-core/loader/arm64/linux.c | 13 +++++++++++++
 include/grub/arm64/linux.h     |  6 +++++-
 2 files changed, 18 insertions(+), 1 deletion(-)

diff --git a/grub-core/loader/arm64/linux.c b/grub-core/loader/arm64/linux.c
index 987f5b9..cf6026e 100644
--- a/grub-core/loader/arm64/linux.c
+++ b/grub-core/loader/arm64/linux.c
@@ -48,6 +48,19 @@ static grub_addr_t initrd_end;
 static void *loaded_fdt;
 static void *fdt;
 
+/* The accessor functions for "loaded" flag */
+int
+grub_linux_get_loaded (void)
+{
+  return loaded;
+}
+
+void
+grub_linux_set_loaded (int loaded_flag)
+{
+  loaded = loaded_flag;
+}
+
 static void *
 get_firmware_fdt (void)
 {
diff --git a/include/grub/arm64/linux.h b/include/grub/arm64/linux.h
index 65796d9..20058f3 100644
--- a/include/grub/arm64/linux.h
+++ b/include/grub/arm64/linux.h
@@ -43,10 +43,14 @@ struct grub_arm64_linux_kernel_header
 };
 
 /* Declare the functions for getting dtb and checking/booting image */
-void *grub_linux_get_fdt (void);
 grub_err_t grub_arm64_uefi_check_image (struct grub_arm64_linux_kernel_header
                                         *lh);
 grub_err_t grub_arm64_uefi_boot_image (grub_addr_t addr, grub_size_t size,
                                        char *args);
 
+/* Export the accessor functions for gettin dtb and "loaded" flag */
+void EXPORT_FUNC (*grub_linux_get_fdt) (void);
+int EXPORT_FUNC (grub_linux_get_loaded) (void);
+void EXPORT_FUNC (grub_linux_set_loaded) (int loaded_flag);
+
 #endif /* ! GRUB_LINUX_CPU_HEADER */
-- 
1.8.3.1


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