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Subject[PATCH] x86/microcode/AMD: Increase microcode PATCH_MAX_SIZE

Future AMD cpus will have microcode patches that exceed the default 4K
page size.

Signed-off-by: John Allen <john.allen@amd.com>
Cc: stable@vger.kernel.org
---
diff --git a/arch/x86/include/asm/microcode_amd.h b/arch/x86/include/asm/microcode_amd.h
index 6685e1218959..7063b5a43220 100644
--- a/arch/x86/include/asm/microcode_amd.h
+++ b/arch/x86/include/asm/microcode_amd.h
@@ -41,7 +41,7 @@ struct microcode_amd {
unsigned int mpb[0];
};

-#define PATCH_MAX_SIZE PAGE_SIZE
+#define PATCH_MAX_SIZE (3 * PAGE_SIZE)

#ifdef CONFIG_MICROCODE_AMD
extern void __init load_ucode_amd_bsp(unsigned int family);
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