From: Jithu Joseph <jithu.joseph@intel.com>
Date: Thu, 17 Nov 2022 03:59:28 +0000 (-0800)
Subject: x86/microcode/intel: Use a reserved field for metasize
X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=28377e56ed22ecce60260eb8afdf0c9837b3505f;p=linux.git

x86/microcode/intel: Use a reserved field for metasize

Intel is using microcode file format for IFS test images too.

IFS test images use one of the existing reserved fields in microcode
header to indicate the size of the region in the file allocated for
metadata structures.

In preparation for this, rename first of the existing reserved fields
in microcode header to metasize. In subsequent patches IFS specific
code will make use of this field while parsing IFS images.

Signed-off-by: Jithu Joseph <jithu.joseph@intel.com>
Signed-off-by: Borislav Petkov <bp@suse.de>
Reviewed-by: Tony Luck <tony.luck@intel.com>
Reviewed-by: Ashok Raj <ashok.raj@intel.com>
Reviewed-by: Sohil Mehta <sohil.mehta@intel.com>
Link: https://lore.kernel.org/r/20221117035935.4136738-10-jithu.joseph@intel.com
---

diff --git a/arch/x86/include/asm/microcode_intel.h b/arch/x86/include/asm/microcode_intel.h
index 2a999bf91ef04..6af1e703cb2eb 100644
--- a/arch/x86/include/asm/microcode_intel.h
+++ b/arch/x86/include/asm/microcode_intel.h
@@ -14,7 +14,8 @@ struct microcode_header_intel {
 	unsigned int            pf;
 	unsigned int            datasize;
 	unsigned int            totalsize;
-	unsigned int            reserved[3];
+	unsigned int            metasize;
+	unsigned int            reserved[2];
 };
 
 struct microcode_intel {