From 5b52dc211f5c90c2f52c48e2d730d31fd4861058 Mon Sep 17 00:00:00 2001
From: coolsnowwolf <coolsnowwolf@gmail.com>
Date: Sun, 14 Oct 2018 15:07:31 +0800
Subject: [PATCH] add generate Hyper-V VHDX image in x86/x64 target (need
 install qemu-utils in host first)

---
 config/Config-images.in         |  8 ++++++++
 target/linux/x86/image/Makefile | 17 +++++++++++++++++
 2 files changed, 25 insertions(+)

diff --git a/config/Config-images.in b/config/Config-images.in
index c0db5a5ec..9c327d500 100644
--- a/config/Config-images.in
+++ b/config/Config-images.in
@@ -253,6 +253,14 @@ menu "Target Images"
 		select TARGET_IMAGES_PAD
 		select PACKAGE_kmod-e1000
 		default y
+		
+	config VHD_IMAGES
+		bool "Build Hyper-V image files (VHD)"
+		depends on TARGET_x86 || TARGET_x86_64
+		default n
+		depends on GRUB_IMAGES || EFI_IMAGES
+		select TARGET_IMAGES_PAD
+		select PACKAGE_kmod-tulip		
 
 	config TARGET_IMAGES_PAD
 		bool "Pad images to filesystem size (for JFFS2)"
diff --git a/target/linux/x86/image/Makefile b/target/linux/x86/image/Makefile
index c8dd94dc7..88e21be3d 100644
--- a/target/linux/x86/image/Makefile
+++ b/target/linux/x86/image/Makefile
@@ -252,6 +252,21 @@ ifneq ($(CONFIG_VMDK_IMAGES),)
   endef
 endif
 
+ifneq ($(CONFIG_VHD_IMAGES),)
+  define Image/Build/vhd
+	rm $(BIN_DIR)/$(IMG_PREFIX)-combined-$(1).vhdx || true
+	/usr/bin/qemu-img convert -O vhdx \
+		$(BIN_DIR)/$(IMG_PREFIX)-combined-$(1).img \
+		$(BIN_DIR)/$(IMG_PREFIX)-combined-$(1).vhdx
+  endef
+  define Image/Build/vhd_efi
+	rm $(BIN_DIR)/$(IMG_PREFIX)-uefi-gpt-$(1).vhdx || true
+	/usr/bin/qemu-img convert -O vhdx \
+		$(BIN_DIR)/$(IMG_PREFIX)-uefi-gpt-$(1).img \
+		$(BIN_DIR)/$(IMG_PREFIX)-uefi-gpt-$(1).vhdx
+  endef
+endif
+
 define Image/Build/gzip
 	gzip -f9n $(BIN_DIR)/$(IMG_PREFIX)-rootfs-$(1).img
 ifneq ($(CONFIG_GRUB_IMAGES),)
@@ -291,10 +306,12 @@ define Image/Build
 ifneq ($(CONFIG_GRUB_IMAGES),)
 	$(call Image/Build/vdi,$(1))
 	$(call Image/Build/vmdk,$(1))
+	$(call Image/Build/vhd,$(1))
 endif
 ifneq ($(CONFIG_EFI_IMAGES),)
 	$(call Image/Build/vdi_efi,$(1))
 	$(call Image/Build/vmdk_efi,$(1))
+	$(call Image/Build/vhd_efi,$(1))
 endif
 	$(CP) $(KDIR)/root.$(1) $(BIN_DIR)/$(IMG_PREFIX)-rootfs-$(1).img
   else