X-Git-Url: https://gerrit.opnfv.org/gerrit/gitweb?a=blobdiff_plain;ds=sidebyside;f=kernel%2Farch%2Fx86%2Finclude%2Fasm%2Fmicrocode.h;fp=kernel%2Farch%2Fx86%2Finclude%2Fasm%2Fmicrocode.h;h=712b24ed3a64c95e18869717280ee72532191b35;hb=52f993b8e89487ec9ee15a7fb4979e0f09a45b27;hp=34e62b1dcfce46a606fbe78d7d55131513d859d3;hpb=c189ccac5702322ed843fe17057035b7222a59b6;p=kvmfornfv.git

diff --git a/kernel/arch/x86/include/asm/microcode.h b/kernel/arch/x86/include/asm/microcode.h
index 34e62b1dc..712b24ed3 100644
--- a/kernel/arch/x86/include/asm/microcode.h
+++ b/kernel/arch/x86/include/asm/microcode.h
@@ -2,6 +2,7 @@
 #define _ASM_X86_MICROCODE_H
 
 #include <linux/earlycpio.h>
+#include <linux/initrd.h>
 
 #define native_rdmsr(msr, val1, val2)			\
 do {							\
@@ -168,4 +169,29 @@ static inline void reload_early_microcode(void)			{ }
 static inline bool
 get_builtin_firmware(struct cpio_data *cd, const char *name)	{ return false; }
 #endif
+
+static inline unsigned long get_initrd_start(void)
+{
+#ifdef CONFIG_BLK_DEV_INITRD
+	return initrd_start;
+#else
+	return 0;
+#endif
+}
+
+static inline unsigned long get_initrd_start_addr(void)
+{
+#ifdef CONFIG_BLK_DEV_INITRD
+#ifdef CONFIG_X86_32
+	unsigned long *initrd_start_p = (unsigned long *)__pa_nodebug(&initrd_start);
+
+	return (unsigned long)__pa_nodebug(*initrd_start_p);
+#else
+	return get_initrd_start();
+#endif
+#else /* CONFIG_BLK_DEV_INITRD */
+	return 0;
+#endif
+}
+
 #endif /* _ASM_X86_MICROCODE_H */