[PATCH 1/5] x86: get_desc_base
This defines the get_desc_base function in asm-x86/desc_64.h to match the
one in desc_32.h. If these two files ever get merged together, this
function could be the same in both.
Signed-off-by: Roland McGrath <[EMAIL PROTECTED]>
diff --git a/include/asm-x86/desc_64.h b/include/asm-x86/desc_64.h
index 7d9c938..70bd72f 100644
--- a/include/asm-x86/desc_64.h
+++ b/include/asm-x86/desc_64.h
@@ -199,6 +199,16 @@ static inline void load_LDT(mm_context_t *pc)
extern struct desc_ptr idt_descr;
+static inline unsigned long get_desc_base(const void *ptr)
+{
+ const u32 *desc = ptr;
+ unsigned long base;
+ base = ((desc[0] >> 16) & 0x) |
+ ((desc[1] << 16) & 0x00ff) |
+ (desc[1] & 0xff00);
+ return base;
+}
+
#endif /* !__ASSEMBLY__ */
#endif
-
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[PATCH 1/5] x86: get_desc_base
This defines the get_desc_base function in asm-x86/desc_64.h to match the
one in desc_32.h. If these two files ever get merged together, this
function could be the same in both.
Signed-off-by: Roland McGrath [EMAIL PROTECTED]
diff --git a/include/asm-x86/desc_64.h b/include/asm-x86/desc_64.h
index 7d9c938..70bd72f 100644
--- a/include/asm-x86/desc_64.h
+++ b/include/asm-x86/desc_64.h
@@ -199,6 +199,16 @@ static inline void load_LDT(mm_context_t *pc)
extern struct desc_ptr idt_descr;
+static inline unsigned long get_desc_base(const void *ptr)
+{
+ const u32 *desc = ptr;
+ unsigned long base;
+ base = ((desc[0] 16) 0x) |
+ ((desc[1] 16) 0x00ff) |
+ (desc[1] 0xff00);
+ return base;
+}
+
#endif /* !__ASSEMBLY__ */
#endif
-
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the body of a message to [EMAIL PROTECTED]
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