hv: move save_segment/load_segment to a header file

save_segment/load_segment is common code and can be used outside of trusty,
move to a header file.

Signed-off-by: Binbin Wu <binbin.wu@intel.com>
Acked-by: Eddie Dong <eddie.dong@intel.com>

Author: binbinwu1

hypervisor/arch/x86/trusty.c

@@ -35,21 +35,6 @@ static struct trusty_key_info g_key_info = {
 	.platform = 3U,
 	.num_seeds = 1U
 };
-#define save_segment(seg, SEG_NAME) \
-{ \
-	seg.selector = exec_vmread16(SEG_NAME##_SEL); \
-	seg.base = exec_vmread(SEG_NAME##_BASE); \
-	seg.limit = exec_vmread32(SEG_NAME##_LIMIT); \
-	seg.attr = exec_vmread32(SEG_NAME##_ATTR); \
-}
-
-#define load_segment(seg, SEG_NAME) \
-{ \
-	exec_vmwrite16(SEG_NAME##_SEL, seg.selector); \
-	exec_vmwrite(SEG_NAME##_BASE, seg.base); \
-	exec_vmwrite32(SEG_NAME##_LIMIT, seg.limit); \
-	exec_vmwrite32(SEG_NAME##_ATTR, seg.attr); \
-}
 
 /**
  * @defgroup trusty_apis Trusty APIs

hypervisor/include/arch/x86/guest/guest.h

@@ -46,6 +46,22 @@
 
 #define E820_MAX_ENTRIES    32U
 
+#define save_segment(seg, SEG_NAME) \
+{ \
+	seg.selector = exec_vmread16(SEG_NAME##_SEL); \
+	seg.base = exec_vmread(SEG_NAME##_BASE); \
+	seg.limit = exec_vmread32(SEG_NAME##_LIMIT); \
+	seg.attr = exec_vmread32(SEG_NAME##_ATTR); \
+}
+
+#define load_segment(seg, SEG_NAME) \
+{ \
+	exec_vmwrite16(SEG_NAME##_SEL, seg.selector); \
+	exec_vmwrite(SEG_NAME##_BASE, seg.base); \
+	exec_vmwrite32(SEG_NAME##_LIMIT, seg.limit); \
+	exec_vmwrite32(SEG_NAME##_ATTR, seg.attr); \
+}
+
 struct e820_mem_params {
 	uint64_t mem_bottom;
 	uint64_t mem_top;